Santa Monica Beach Sea Water Temperature
A cool beach on the James Bay, warmest around August at about 17.1°C. Today's reading, 7-day forecast, and monthly averages below.
Santa Monica Beach water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Santa Monica Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Santa Monica Beach occurs inJuly, August, September, October — peaking at17.1°C (62.8°F) in August.
Year-Round Water Temperature Curve (°C / °F)
Hover a bar for detailsFull 12-month data table — min / avg / max & swimming comfort
| Month | Min Water Temp | Average Water Temp | Max Water Temp | Swimming Comfort |
|---|---|---|---|---|
| January | 1°C | 2.7°C | 3.8°C | Very Cold (< 16°C) |
| February | 0.4°C | 1.5°C | 3.8°C | Very Cold (< 16°C) |
| March | 0.1°C | 1.5°C | 3.1°C | Very Cold (< 16°C) |
| April | 0.3°C | 1.8°C | 3.8°C | Very Cold (< 16°C) |
| May | 1.7°C | 3.5°C | 7.1°C | Very Cold (< 16°C) |
| June | 3.2°C | 6.2°C | 11.8°C | Very Cold (< 16°C) |
| July | 3.8°C | 12°C | 19.6°C | Very Cold (< 16°C) |
| August | 12.2°C | 17.1°C | 20.1°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 8.9°C | 14.5°C | 19.5°C | Very Cold (< 16°C) |
| October | 6.8°C | 10.6°C | 16.7°C | Very Cold (< 16°C) |
| November | 4.5°C | 6.5°C | 9.8°C | Very Cold (< 16°C) |
| December | 2.5°C | 4.1°C | 6.1°C | Very Cold (< 16°C) |
Swimming FAQs for Santa Monica Beach
Is the sea warm enough to swim in Santa Monica Beach today?
Typical sea surface temperature in Santa Monica Beach this time of year is 14.5°C (58.1°F) — classified as Very Cold (< 16°C). Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges. Live readings load automatically.
What are the warmest months for swimming in Santa Monica Beach?
The highest water temperatures in Santa Monica Beach typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Santa Monica Beach in September?
Historically in September, water temperatures in Santa Monica Beach average around14.5°C (58.1°F), fluctuating between a recorded minimum of 8.9°C and a maximum of 19.5°C.