By Skatinger Product Team | Updated: August 13, 2026

How to Store an Inflatable Paddle Board for Winter (2026 Guide)

Short answer: deflate your inflatable SUP, clean and fully dry it, fold it loosely, and keep it in a cool, dry indoor space (5–25°C / 41–77°F) away from direct sunlight and sharp objects. Stored this way, a quality drop-stitch iSUP will easily last 5–10 seasons. This guide walks through every step, plus the common mistakes that ruin boards during winter storage.

How Long Can You Leave an Inflatable SUP Inflated?

You can keep an inflatable paddle board inflated for a few days to a couple of weeks without damage, but long-term inflation is not recommended. Constant pressure stresses the drop-stitch threads and the PVC seams, and seasonal temperature swings make the air inside expand and contract — which accelerates wear at the valve and the rail seams. For winter storage (3–6 months), always deflate the board. Most manufacturers, including Starboard’s care guide, recommend full deflation before long-term storage.

Step-by-Step: How to Store Your Inflatable Paddle Board for Winter

Step 1: Rinse the board with fresh water

After your last paddle of the season, rinse the entire board with fresh water. Saltwater, sand, and lake residue are abrasive and corrosive — salt crystals can eat into the PVC over months of storage, and sand trapped in the fins or valve will scratch the material every time the board moves.

Step 2: Clean with mild soap

Use a soft sponge and a mild soap (dish soap works well) to remove sunscreen, dirt, and algae. Avoid harsh solvents, acetone, or pressure washers — they can degrade the PVC coating. Rinse again and let the board air-dry.

Step 3: Dry it completely — inside and out

This is the step people skip, and it’s the #1 cause of mold and mildew. Wipe down the deck with a microfiber towel, then dry the inside of the board before folding: partially inflate the board (about 30% pressure) and let it sit for 30–60 minutes so trapped moisture evaporates, or leave the valve open and gently squeeze air through the chamber. NRS’s inflatable care guide makes the same point: any moisture left inside becomes a mildew breeding ground over winter.

Step 4: Deflate and fold properly

Open the valve fully and press the air out. Fold the board following the crease lines rather than folding it randomly — random folds create permanent creases in the drop-stitch core. Fold the nose toward the tail in a loose, even pattern, and never fold it so tightly that the PVC pinches. A tightly rolled board can develop hairline crease cracks that leak the next season.

Step 5: Check the valve and loosen the fin

Clean the valve area and close the valve cap to keep dust out. If your board has a removable fin, take it off and store it separately — leaving the fin installed puts pressure on the fin box over months of storage. For built-in fins, check the fin box for sand before storing.

Step 6: Store in a cool, dry place

Keep the deflated board in its carry bag, in a room without extreme temperature swings: a closet, spare room, or garage shelf away from radiators, water heaters, and windows. The ideal range is 5–25°C (41–77°F). Glide SUP’s storage guide confirms that heat and UV are the two biggest enemies of inflatable boards in storage.

Where Should You Store an Inflatable Paddle Board in Winter?

Best options, in order:

If the only option is an unheated garage, keep the board inside its carry bag, off the concrete floor (place it on a shelf or board), and never store it where temperatures drop below freezing for long stretches — frozen PVC becomes brittle and can crack when flexed.

What Temperature Can an Inflatable Paddle Board Withstand?

Inflatable SUPs are built from PVC drop-stitch material rated for normal outdoor paddling, roughly −5°C to +40°C (23°F to 104°F) for short exposure. But storage is different: repeated freeze-thaw cycles make the PVC stiffen and micro-crack, so below-freezing storage is the most common cause of “my board leaks after winter” complaints. The safe storage band is 5–25°C (41–77°F) — exactly why an indoor closet beats a cold garage.

Should You Store an Inflatable SUP Inflated or Deflated?

Deflated, always, for long-term storage. Here’s the comparison:

The exception: some riders keep a board slightly inflated (20–30%) to keep the shape — but that still leaves the seams under pressure for months. For winter, deflate fully.

How to Care for the Accessories Before Storage

• Paddle: rinse, dry, and loosen the adjustment clamp so it isn’t compressed all winter.
• Pump & hose: empty the hose, store the pump dry; check the gauge before next season.
• Repair kit: keep the included PVC patch kit with the board — a small patch kit fixes most pinhole leaks from storage creases (AquaGlide’s leak-repair guide shows the process).
• Battery (for electric pumps): remove and store at room temperature, partially charged.

How to Prepare Your Board for Spring

Take the board out of storage 24–48 hours before your first paddle, let it warm to room temperature, inflate to the recommended PSI (usually 12–15 PSI for all-around iSUPs — check the valve sticker), and inspect the seams, valve, and fin box. A 30-second pressure test after inflation catches most storage damage before it ruins a session. If you notice a slow leak, patch it before the first paddle — patching a clean, dry board takes 20 minutes; patching it on the water takes an afternoon.

FAQ

Q1: Can I store my inflatable paddle board in a garage over winter?
Yes, if the garage stays above freezing (5°C+/41°F+). Keep the board in its bag, off the concrete floor, and away from the water heater. If the garage dips below freezing, move the board indoors.

Q2: How long can an inflatable paddle board stay inflated?
Days to a few weeks is fine for normal use. For anything longer — especially winter — deflate it. Long-term pressure plus temperature swings stresses the seams and valve.

Q3: Do I need to fully deflate my iSUP for winter storage?
Yes. Full deflation removes stress from the drop-stitch seams and makes the board far easier to store flat. Just fold along the existing crease lines.

Q4: Will cold weather damage an inflated paddle board?
Yes. Air contracts in the cold, and if the board is inflated and temperatures drop sharply, the pressure change can strain the seams; repeated freezing also makes the PVC brittle.

Q5: How do I stop my inflatable SUP from getting moldy in storage?
Dry it completely before folding — wipe the deck, then partially inflate and air out the interior for 30–60 minutes. Store only a bone-dry board.

Q6: Can I leave my paddle board in the car over winter?
No. Car interiors swing between freezing and hot UV-exposed temperatures, which is the worst-case storage environment for PVC.

Q7: What PSI should I inflate my paddle board to after storage?
Check the printed spec near the valve — most all-around boards run 12–15 PSI. Never exceed the max PSI stamped on the board.

Q8: How do I fix a small leak that appeared after winter storage?
Clean and dry the area, apply the PVC patch from your repair kit with even pressure, and let it cure per the kit instructions. Most pinhole leaks from storage creases patch successfully.

Bottom Line

Winter storage comes down to three things: clean it, dry it, deflate it — then keep it in a stable, cool, dry space above freezing. Do that, and your inflatable SUP is ready for another 5–10 seasons.

At Skatinger, we build our inflatable paddle boards and kayaks with double-layer drop-stitch PVC and welded seams designed to survive exactly this kind of off-season care. Every Skatinger board ships with a carry bag and repair kit, and our winter storage FAQ covers model-specific PSI and folding guidance. For more on board construction and care, see Thurso Surf’s iSUP construction guide and Starboard’s inflatable care series.

Sources: NRS inflatable care guide; AquaGlide leak-repair guide; Glide SUP storage guide; Starboard how-to guides; Thurso Surf construction guide.

Last updated: August 13, 2026