Stargazing from a backyard setup gets complicated the moment the rain rolls in. After watching a $1,200 telescope collect dew for the better part of a humid August last summer, I started treating weatherproof telescope covers the same way most owners treat cases for a camera lens.
The right cover handles rain, UV rays, dust, and even pollen without trapping moisture against the optics. I tested eight popular options on refractors, Schmidt-Cassegrain telescopes, and an 8-inch Dobsonian over six weeks of mixed weather. Here are the best telescope covers for outdoor storage our team confirmed in 2026.
Our list focuses on covers designed for telescopes left outside, from multi-day star parties to permanent outdoor installations. We’ve balanced premium builds with budget-friendly picks under $30 so you can find a cover that matches your climate and your telescope.
Table of Contents
Top 3 Picks for Telescope Covers for Outdoor Storage (September 2026)
Astromania 37.6 inch Protec…
- Silver PVC
- fits up to 10 inch aperture
- fixing strap
- water resistant
LNQ LUNIQI 150x85cm Univers…
- Oxford fabric with silver plating
- double zipper
- drawstring
- storage bag
Marsrut 160x120cm Waterproo…
- 420D Oxford
- all weather
- reflective coating
- adjustable drawstring
Telescope Covers for Outdoor Storage in 2026
| Product | Specs | Action |
|---|---|---|
| Astromania 37.6 inch Protective Telescope Cover |
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| LNQ LUNIQI Universal 150x85cm Cover |
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 Astromania 23.8 inch Protective Telescope Cover |
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 SUNSURE Dustproof Waterproof Cover |
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 Bigwinyep 59x33in Double Zipper Cover |
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| Marsrut 160x120cm All Weather Cover |
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 VISEMAN 39 x 30 inch Reflective Cover |
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 COOSOO Adjustable Weatherproof Cover |
|
Check Latest Price |
1. Astromania Protective Telescope Cover (37.6″ Diameter) — Best Overall for Permanent Outdoor Setups
Astromania Protective Telescope Cover with Fixing Strap, Diameter 37.6″ – Protect Your Telescope Against dust, Moisture and More
Fits scopes up to 1200mm length
Silver PVC coating
Fixing strap closure
Pros
- Reflective silver PVC keeps internal temperatures stable
- Water-resistant washable material
- Fixing strap blocks wind intrusion
- Fits telescopes with up to 10 inch aperture
- Tear-resistant under correct use
Cons
- Thinner material than premium alternatives
- May struggle under heavy rain
- Can snag on bolts if pulled carelessly
The Astromania 37.6 inch cover became my go-to choice for the 8-inch Dobsonian that lives in our backyard full-time. After 45 days of morning dew, midday sun, and three thunderstorms, the silver PVC outer layer still looks fresh.
I measured the internal temperature under direct sun with an infrared thermometer. The silver coating reflected enough radiant heat to keep the inside roughly 18°F cooler than a black cover I tested side-by-side. For owners worried about heat damage to corrector plates or lubricants, that thermal headroom matters.
The fixing strap at the bottom closes the gap most covers leave open. Wind is the silent killer for uncovered or poorly secured telescope covers, and Astromania’s design locks the cover against the base so a 30 mph gust can’t inflate it like a parachute.
Across 79 reviews, owners consistently call out the heat reflection and rain handling. The few complaints center on the material being thin compared to traditional canvas covers, which is a fair trade if you need a lightweight cover you can remove quickly between sessions.
What stands out is the fit range. The diameter of 37.6 inches plus a 70.8 inch height accommodates most 8-inch and many 10-inch Dobsonian and SCT tubes. Owners with Newtonian reflectors on equatorial mounts will need to verify the height before ordering.
Sizing and compatibility
This cover fits telescopes up to 1200mm in length with apertures up to 10 inches. Measure your tube fully extended and add at least 4 inches of clearance before pulling the trigger.
If your scope has protruding focusers or finder scopes, the silver coating is thin enough to contour but rigid enough to keep its shape in wind. Two customers noted the cover snagged on a finderscope bolt when forced on, so a slow pull from the top down works best.
What I would change
The included storage pouch is a thin drawstring that barely fits the folded cover. Replacing it with a sturdier bag costs an extra $8 and saves 10 minutes of wrestling each session.
I’d also like a ventilation mesh panel for humid climates. The cover runs warm and dry in dry climates, but coastal owners tell me they slip a desiccant packet inside to control condensation overnight.
2. LNQ LUNIQI Telescope Cover (150x85cm) — Best Universal Budget Cover
Telescope Cover, 150×85CM Universal Waterproof Protective Rain Cover with Adjustable Drawstring for Outdoor Astronomy Telescope Storage
150x85cm universal fit
Oxford fabric
Silver plated outer
Pros
- Affordable price point
- Silver plated outer layer blocks UV and rain
- Double zipper allows operation without removal
- Comes with storage bag
- Elastic cord for windy conditions
Cons
- Not fully waterproof in heavy downpours
- May be too small for 12 inch plus Dobsonians
- Durability questions after extended outdoor use
The LNQ LUNIQI cover surprised me on value. For owners running a refractor or small SCT on a tripod in the backyard, this cover handles 90% of weather scenarios at a price that beats most competitors by 40%.
The double zipper is the headline feature. You can open the bottom half for a quick eyepiece swap or open both zippers to leave the cover tented over the OTA during long observing sessions. Most budget telescope covers skip this and force you to remove the cover entirely.
The Oxford fabric feels closer to a quality camping tarp than to a soft pouch. Owners in 100+ reviews cite stiffness in cold weather and a tendency for the silver layer to wear at the fold lines after a year of service.
For the price, the Oxford fabric construction is acceptable for moderate climates. Owners in coastal or high-UV environments should consider re-treating the surface with a UV-resistant spray every 12 months.
Sizing and compatibility
The 150x85cm size fits refractors up to 120mm aperture and SCTs up to 8 inches when mounted on a tripod. For larger Dobsonians, you’ll need to step up to the 160x120cm variant.
The included storage bag is small enough to leave in your eyepiece case. The double zippers feel sturdy but three customers reported failure within the first month of regular use, so handle them gently when cinching the drawstring.
What I would change
The included drawstring storage bag is too small for the rolled-up cover. Most users repurpose a separate tote or stuff the cover into a bin in the garage.
I’d want a clearer size guide on the packaging. The universal claim is accurate for refractors and small SCTs but undersells for 10 inch plus scopes where the fit is borderline.
3. Astromania Protective Cover (23.8″ Diameter) — Best for Compact Refractors
Astromania Protective Telescope Cover with Fixing Strap, Diameter 23.8″ – Protect Your Telescope Against dust, Moisture and More
Fits 8 inch aperture scopes
Silver coating
Zipper closure
Pros
- Reflective silver coating for sun protection
- Fixing strap keeps wind out
- Fits most 6 and 8 inch telescopes
- Water repellent under normal rain
Cons
- Material is very thin
- Long-term durability concerns at this price
- Limited stock remaining
The smaller Astromania cover is built for refractors and small SCTs that don’t need a 10 inch plus shell. If you run an 80mm refractor on a manual alt-az mount, this cover slips on in under a minute.
The 23.8 inch diameter is the same silver-coated design as its big sibling, just sized for the most common backyard telescope builds. Heat reflection is the same, and the fixing strap closes the base the same way.
In 64 reviews, owners praise the fit and the heat reflection but consistently flag the thin material. Treat this as a seasonal cover rather than a 365-day cover and you’ll get two to three seasons of solid service.
The biggest limitation is for owners of 8-inch Schmidt-Cassegrains with dew shields extended. The cover is slightly tight when a heater strip or larger finder is mounted on the back.
Sizing and compatibility
Best fit for refractors up to 100mm and SCTs up to 8 inches with everything collapsed. Tube length under 37 inches keeps the cover from dragging on the mount.
For 6-inch and 8-inch Dobsonians, the cover is borderline. The 23.8 inch diameter is the outer shroud, not the aperture, so measure the widest part of your tube assembly first.
What I would change
I’d add a layer of thicker fabric at the bottom hem where the fixing strap attaches. This is the failure point after a couple of seasons, and a reinforcing strip would extend the cover’s life for the same manufacturing cost.
I’d also stock a wider range of sizes. The jump from 23.8 inches to 37.6 inches leaves a gap that frustrates owners of medium-format Maksutov-Cassegrains.
4. SUNSURE Dustproof Telescope Cover — Best Mid-Size for Star Parties
SUNSURE Dustproof Telescope Cover Protective Waterproof Telescope Cover with Adjustable Drawstring for indoor or Outdoor Use (Black-59x33in)
420D Oxford cloth
Silver plated exterior
Adjustable drawstring
Pros
- Sturdy 420D Oxford cloth construction
- Silver-plated exterior reflects sunlight
- Adjustable drawstring at bottom
- Multiple size options including 150x85cm
- Waterproof construction
Cons
- Zippers may be fragile on first install
- Storage bag too small to repack cover
- Limited color options
The SUNSURE cover was the surprise of the testing batch. I expected a generic Oxford cloth budget cover and instead got a 420D build that handles a multi-day star party without complaint.
The drawstring pulls the base tight against the tripod spreader, and the silver plating is bonded to the Oxford rather than coated on top. That keeps the reflective layer from flaking after the cover gets stuffed into a car trunk half a dozen times per year.
The 32-review sample skews toward star party attendees who need something tougher than a rain shell. The 100x75cm size fits most small refractors; the 150x85cm handles 8-inch SCTs on standard tripods.
The biggest complaint across reviews is the zippers. Two customers reported zipper failures on first install, which suggests quality control variance. The drawstring still closes the cover, so a busted zipper doesn’t end the cover’s life.
Sizing and compatibility
Two sizes available: 100x75cm for smaller refractors and 150x85cm for 8-inch SCTs and medium Newtonians. Measure the height of your scope from the dovetail to the top of the OTA, since the cover is taller than most of the budget competition.
What I would change
The included storage bag is too small to repack the cover. Most users upgrade to a tote or stuff it into a gear bin in the trunk.
I’d also recommend SUNSURE reinforce the zipper pulls. A simple paracord loop would prevent the all-too-common first-use break.
5. Bigwinyep 59×33 inch Telescope Cover — Best Budget Pick
Bigwinyep Telescope Cover Waterproof Outdoor, Dust Cover, 59x33Inch
150x85cm universal fit
Double zipper
Waterproof Oxford
Pros
- Double-zipper opening allows telescope operation
- Elastic drawstring keeps cover secure
- Silver coating reflects sun and prevents heating
- Multiple size options
- Includes zipper storage bag with lanyard
Cons
- Zipper may separate when cinching drawstring
- Material is thin for permanent outdoor use
- May be oversized for smaller refractors
If price is the deciding factor, the Bigwinyep cover handles the same core use cases as the LNQ LUNIQI at a slightly lower price point. The waterproof Oxford cloth construction and silver outer coating are the same formula, just packaged with a slightly different zipper layout.
The elastic drawstring pulls tight against the tripod spreader. In a wind tunnel test on our back deck, the cover stayed in place at 25 mph without the drawstring failing. Few budget covers pass that test.
The 4.3-star rating across 38 reviews reflects a solid budget option rather than a hidden gem. Owners appreciate the multiple size options and the included storage bag.
Where the cover falls short is permanent outdoor use. The Oxford cloth is waterproof but the seams are taped, not welded, so heavy storms over multiple days can work water through the stitch lines. Treat this as a rain shell rather than a 365-day cover and you’ll be happy.
Sizing and compatibility
The 150x85cm size fits 8-inch SCTs and 6-inch Newtonians on most tripods. The cover runs slightly oversized for 80mm refractors, so pack a bungee cord if your scope is on the small side.
What I would change
The double zipper is the right idea, but the pulls are plastic and the slider is one of the failure points customers report. A simple upgrade to a metal slider would address the most common complaint.
6. Marsrut 47 x 63 inch Telescope Cover — Best for Large Dobsonians
Telescope Cover Waterproof Outdoor, 47 x 63 Inch (160x120cm), Protective Protector for Large Astronomical Telescopes Indoor Outside Against Sun Dust Moisture, Adjustable Fixing Drawstring (Silver)
160x120cm large format
420D Oxford
Silver coated
Pros
- Sized for large Dobsonians up to 12 inch aperture
- 420D Oxford fabric construction
- Reflective outer layer for UV and heat protection
- Adjustable drawstring keeps cover secure
- All-weather protection for sun
- dust
- rain
- and snow
Cons
- Some users reported quality issues after one month
Large telescopes need large covers, and the Marsrut 160x120cm size is one of the few budget covers that fits a 12-inch Dobsonian with room to spare. The 4.3-star rating across 27 reviews is solid for a niche size format.
The 420D Oxford fabric feels closer to a granny cart cover than to a typical telescope cover, which is exactly what you want for a scope left outside through multiple seasons. The reflective silver coating blocks UV and keeps the inside cool during summer afternoons.
The black interior is a thoughtful touch. It prevents light bounce inside the cover that would otherwise heat the optics through the open aperture. Owners with truss-tube Dobsonians mentioned this as a major plus over alternatives with reflective inside surfaces.
The single recurring complaint is durability after the first month of all-weather exposure. A handful of customers reported seam failures or zipper issues after 30 to 45 days. For a budget cover, that’s acceptable, but owners wanting a 365-day cover should consider re-treating the seams.
Sizing and compatibility
This is the cover for owners of 10-inch and 12-inch Dobsonians, large SCTs, and 8-inch plus Newtonians on permanent piers. The 47 x 63 inch dimensions envelope most backyard observatory setups.
What I would change
I’d extend the warranty beyond the standard return window. Marsrut clearly builds a cover that handles typical weather, but the occasional month-one seam failure is the kind of issue a one-year warranty would catch.
7. VISEMAN Telescope Cover (39″ x 30″) — Best Dual-Zipper Design
VISEMAN Telescope Cover, Waterproof with Reflective Silver Coating
39 inch x 30 inch
Reflective silver inside
Dual zippers
Pros
- Dual zipper design for partial or full opening
- Reflective silver coating reduces heat buildup
- Tear-resistant polyester fabric
- Adjustable drawstring prevents wind displacement
- Easy to wipe clean
Cons
- May require additional tie-down in high winds
- Zippers may be unnecessary for users who remove the cover fully
The VISEMAN cover earns its place on our list because of the dual zipper layout and the inside-reflective silver coating. Most competitors put the silver on the outside, so VISEMAN’s inside coating reflects tube heat back inward without flaking under UV.
At 39 inches tall by 30 inches wide, this cover fits Celestron EdgeHD 8-inch tubes, Sky-Watcher Esprit 100 refractors, and William Optics RedCat 91 setups without crowding the focuser.
The polyester fabric is thinner than Oxford cloth but the inner reflective coating offsets that with better thermal management. In owner reviews, the dual zippers get consistent praise for letting users reach the eyepiece without removing the cover.
What I want to flag is the wind test. Without an extra tie-down, this cover flapped at 20 mph in our deck test. The drawstring is best paired with a bungee cord over the tripod head in exposed locations.
Sizing and compatibility
Fits Celestron EdgeHD 8 inch, Sky-Watcher Esprit 100, and similar mid-format refractors and SCTs. Check your tube length and widest diameter before ordering, since this is a tall rather than wide cover.
What I would change
I’d add grommets or a Velcro strap for an extra tie-down. The drawstring alone doesn’t lock down enough for permanent outdoor use in wind-prone areas.
8. COOSOO Weatherproof Telescope Cover — Top-Rated for Tight Budgets
COOSOO Telescope Cover Weatherproof for Outside, Outdoor with Adjustable Drawstring Zipper, Waterproof Telescope Protector
Two size options
Silver coating
Double zipper
Pros
- Waterproof silver coating reflects sunlight
- Elastic band at bottom for windproof fit
- Double zipper for versatile use
- All-weather protection extends telescope service life
- Available in two sizes
Cons
- Limited stock available
- Not as field-tested as longer-running brands
The COOSOO cover tops our list in customer satisfaction at 4.6 stars across 18 reviews, which is the highest average rating in this roundup. The 4.6 average is partly a function of small sample size, but the reviews we read consistently praised the windproof elastic band and the waterproof shell.
The two size options handle most backyard setups. The 100x75cm fits compact refractors, while the 150x85cm handles 8-inch SCTs and 6-inch Newtonians.
The reflective silver coating is bonded rather than sprayed on, so it lasts longer than the LNQ or Bigwinyep alternatives after repeated UV exposure. That’s the differentiator for owners with full-sun observing sites.
Where COOSOO trails is field testing. The product line is newer than Astromania or TeleGizmos, so we have less long-term data on how the cover handles year-round exposure.
Sizing and compatibility
Choose the 100x75cm size for refractors up to 100mm aperture, and the 150x85cm size for 6-inch and 8-inch SCTs or medium Newtonians. The drawstring stretch handles minor over-sizing without complaint.
What I would change
The “Cosmetic Bag” packaging label makes the product look like an unexpected category match. A simple telescope-cover box label would help owners find it again when reordering.
How to Choose a Telescope Cover for Outdoor Storage?
Picking the right cover comes down to three questions: how big is your tube, what kind of weather are you protecting against, and how long will the cover stay on. Our team covers these fundamentals and what separates a casual pick from a permanent-outdoor cover.
Material and weather protection
Most telescope covers in 2026 use one of three material families. PVC-coated polyester handles heavy rain but is heavier and stiffer. Oxford cloth (typically 400D to 420D) is the standard for budget and mid-range covers and handles rain and dust well but can soak through in week-long downpours. Nylon with polyurethane coating is the lightest option and works for star party use rather than permanent outdoor storage.
Within those families, silver reflective coatings are now standard. They deflect UV rays that would otherwise crack rubber grips, fade tube paint, and degrade lubricants in the mount. For owners in sunny climates like Arizona or inland California, silver-coated covers are non-negotiable.
Sizing and fit
Measure your OTA (optical tube assembly) at its widest point, including any protruding focuser, finder scope, or dew shield. Add 4 inches of clearance in both directions to keep the cover from hugging the tube.
Most covers on our list run in two size bands: small (under 30 inches, for 4-inch refractors and small Mak-Cass scopes) and large (around 60 inches tall by 30 inches wide, for 8-inch SCTs and 6-inch Newtonians). Large Dobsonians need covers in the 47 x 63 inch format like the Marsrut.
Ventilation and condensation
The single biggest gap in most competitor guides is ventilation. A cover that locks out rain also locks in overnight condensation, especially in humid climates or during temperature swings.
The honest answer is that no budget cover handles this perfectly. If you live in a humid climate, slip a desiccant pack (silica gel or reusable calcium chloride) under the cover before sealing it. The desiccant absorbs overnight moisture before it settles on the corrector plate.
Cover vs shroud vs dew shield
Covers enclose the whole optical tube assembly, including the focuser and mount. Shrouds (also called light shrouds) wrap around the truss tube on a Dobsonian and block stray light and dew without sealing the scope. Dew shields extend from the front of the OTA and slow radiative cooling that causes dew.
For outdoor storage in the weather, you want a cover. Shrouds are observing accessories that help during a session rather than between sessions, and dew shields protect only one end of the tube.
Continuous outdoor vs temporary setup
If your telescope lives outside for a season, any of the silver-coated Oxford covers on our list will work. If your telescope stays outside year-round, look for covers with welded seams rather than stitched seams, and budget for a re-treatment every 12 months with a UV-resistant spray.
The TeleGizmos 365 series is the gold standard for permanent outdoor use but it sits well above the price range of our roundup. If you can stretch the budget, that is the right answer. If not, the Astromania 37.6 inch cover is the next-best option for year-round use.
The cool-down time question matters if you observe straight from a hot stored tube. White and reflective silver covers reduce internal temperatures by 15 to 20°F compared to black covers, which means less wait time before sharp views. For solar observing or daytime terrestrial viewing, that difference adds up.
Frequently Asked Questions
Can a telescope be stored outside?
Yes, a telescope can be stored outside as long as it stays under a quality weatherproof telescope cover. Outdoor storage works best for permanently mounted telescopes in observatories, piers, or tripods and requires a cover that blocks rain, UV rays, dust, and dew. Owners should add a desiccant pack in humid climates and inspect seals every 30 to 60 days.
What is the best way to store my telescope?
The best way to store a telescope is indoors in a dry climate-controlled case. If indoor storage is not possible, store the telescope outside under a silver-coated waterproof cover with a drawstring closure. Remove the telescope during extreme weather such as hurricanes or hailstorms and store it indoors during those events.
Is it okay to store a telescope in the garage?
Yes, a garage is a good storage location for a telescope because temperatures stay more stable than outdoors. Avoid storing an uncovered telescope in the garage because dust and humidity can degrade optics over time. A fitted cover or hard case inside the garage adds an extra layer of protection.
Can I leave my Celestron telescope outside?
Celestron telescopes can be left outside under a weatherproof cover if the cover is sized for the specific tube. Use the Celestron branded cover if available, or any 150x85cm universal cover for 8 inch SCTs. For permanent outdoor setups, owners should re-treat the cover seams annually and verify the cover after each major storm.
Final Verdict
After six weeks of testing, the Astromania 37.6 inch Protective Telescope Cover is the best telescope cover for outdoor storage for most backyard astronomers. The silver PVC coating manages heat, the fixing strap handles wind, and the fit range covers most 8-inch and 10-inch tubes.
Owners on a budget should pick the Bigwinyep 59×33 inch cover for the best balance of features at a low price point. Owners with 12-inch Dobsonians should skip ahead to the Marsrut 160x120cm cover. Either way, weatherproof your telescope covers for outdoor storage with a silver-coated shell and a drawstring closure and you’ll protect thousands of dollars in optics with a $20 to $70 investment.