Fall Paddling Season in San Diego: Water Temperature and Neoprene Thickness Guide
Fall is prime paddling season in San Diego. The summer crowds thin out, swells become more consistent, and water temperatures hover in a sweet spot—warm enough for minimal thermal protection, but cool enough to keep you alert and comfortable during long sessions. Here’s what you need to know to dial in your kit for September through November.
Water Temperature Progression
San Diego’s Pacific water temperature peaks in August and September, hovering around 70–72°F. This is the tail end of the warm season, and many paddlers can get away with minimal coverage or even a rashguard alone during midday sessions.
By mid-October, temperatures start their descent, dropping to 68–70°F. This shift is subtle but significant—your body will notice the difference on a two-hour paddle, especially if you’re paddling early morning or late evening.
November brings the real transition. Water temps typically range from 64–68°F, with cooler readings possible during strong Santa Ana wind events that push warm surface water offshore. This is when most San Diego paddlers make the jump to proper thermal protection.
Neoprene Thickness Guide
September (70–72°F): Rashguard or 1–2mm Vest
Early fall is ideal for minimal protection. A quality rashguard—like a 1mm neoprene vest—provides sun protection and chafe resistance without trapping excess heat. If you’re paddling at dawn or pushing into cooler water near the kelp beds off Point Loma or La Jolla Shores, a 2mm vest adds just enough insulation without overheating. Many paddlers skip neoprene entirely during this month and rely on UV-blocking rashguards and frequent hydration.
October (68–70°F): 2–3mm Vest or Spring Suit
October is the transition month. Early October still favors 2mm, but by late October, a 3mm vest becomes more comfortable, especially for sessions longer than 90 minutes. A spring suit (2/1mm thickness—thicker on the torso, thinner on limbs) is an excellent middle ground if you’re planning mixed-length sessions. The spring suit provides core warmth without the bulk of a full winter suit.
November (64–68°F): 3mm Vest or 3/2mm Spring Suit
As we move into late fall, a 3mm vest is the baseline. Many San Diego paddlers stick with a 3mm vest through November because it’s lightweight, dries fast, and provides adequate protection for the typical 60–minute session. However, if you’re a lanky paddler or planning extended outings on the Channel Islands or Point Loma, bump up to a 3/2mm spring suit. The extra chest and leg coverage makes a real difference when water temps dip to 64°F.
Regional Variations
Water temperature isn’t uniform across San Diego. Mission Bay stays warmer longer—often 2–3°F warmer than the open coast—thanks to the protected water and shallow basin. If you’re paddling Mission Bay in October, a 2mm vest might suffice longer than it would at Pacific Beach or Ocean Beach.
Conversely, the waters off Point Loma, especially near the kelp forests, run cooler. The same applies to La Jolla Shores and the kelp beds north of Scripps Pier. These areas experience upwelling, which brings cooler, nutrient-rich water to the surface. Plan accordingly—if you’re exploring the reefs and kelp, go one thickness heavier than the air temperature suggests.
The Coronado side of the bay is typically 1–2°F warmer than the open ocean, making it a good choice for lighter thermal protection if you’re on the fence about upgrading your suit.
Fit and Durability Tips
Neoprene thickness is only half the equation. A poorly fitting suit will flush water constantly, negating its insulating value. Your vest or spring suit should fit snugly—you should barely be able to fit a finger between the suit and your skin. Check the seams and panel construction; glued and blindstitched seams hold up far better than single-stitched suits, especially if you’re paddling rough water near the Coronado Ferry Channel or Sunset Cliffs.
Rinse your suit in fresh water after every session, especially if you’ve been paddling in kelp or near the jetties. Neoprene degrades faster when exposed to salt, UV, and organic material. Hang it to dry in the shade, never in direct sun.
Check Conditions Before You Paddle
Water temperature is just one factor. Wind, swell direction, and tide also shape your experience. Use the Element app to check real-time water temps, wind forecasts, and swell reports specific to your launch point—whether that’s Pacific Beach, Mission Bay, or the Coronado Ferry Channel. Dial in your thermal protection based on actual conditions, not guesses.
Fall is when San Diego paddling truly shines. Dial in your neoprene thickness, stay warm, and make the most of the season.