Water Temperature in San Diego: Month-by-Month Guide
Understanding water temperature helps you prepare for comfort and safety.
Here’s what to expect:
January – 55–58°F
February – 55–58°F
March – 56–59°F
April – 58–61°F
May – 60–63°F
June – 62–66°F
July – 65–70°F
August – 68–72°F
September – 67–71°F
October – 64–68°F
November – 60–65°F
December – 57–60°F
Most divers wear:
• 7mm wetsuit year-round
• Hood and gloves in winter
• Optional thinner suit in peak summer
With proper thermal protection, diving is comfortable even in cooler months.
If you’re new, your instructor should provide the correct exposure guidance and ensure you’re properly fitted.
👉 Book a Guided Scuba Tour at La Jolla Cove or La Jolla Shores Here