La Costa Beach Sea Water Temperature
A mild beach on the Gulf of California, warmest around September at about 20.2°C. Today's reading, 7-day forecast, and monthly averages below.
La Costa Beach water temperature
Pleasant and revitalizing. Great for most beachgoers and active recreational swimming.
7-Day Water Temperature Forecast
La Costa Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in La Costa Beach occurs inJuly, August, September, October — peaking at20.2°C (68.4°F) in September.
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 | 13.2°C | 14.7°C | 16.7°C | Very Cold (< 16°C) |
| February | 13.2°C | 14.5°C | 17.1°C | Very Cold (< 16°C) |
| March | 13°C | 14.6°C | 17.4°C | Very Cold (< 16°C) |
| April | 13.5°C | 15.2°C | 16.9°C | Very Cold (< 16°C) |
| May | 14.7°C | 16.6°C | 19°C | Cool / Refreshing (16°C – 20°C) |
| June | 14.3°C | 18°C | 20°C | Cool / Refreshing (16°C – 20°C) |
| July | 17.5°C | 19.8°C | 23.1°C | Cool / Refreshing (16°C – 20°C) |
| August | 17.6°C | 20.1°C | 23.1°C | Comfortable (20°C – 24°C) |
| SeptemberCurrent | 16.7°C | 20.2°C | 23.1°C | Comfortable (20°C – 24°C) |
| October | 16°C | 18.8°C | 23.7°C | Cool / Refreshing (16°C – 20°C) |
| November | 15.2°C | 17.2°C | 19.4°C | Cool / Refreshing (16°C – 20°C) |
| December | 14.1°C | 15.8°C | 18.5°C | Very Cold (< 16°C) |
Swimming FAQs for La Costa Beach
Is the sea warm enough to swim in La Costa Beach today?
Typical sea surface temperature in La Costa Beach this time of year is 20.2°C (68.4°F) — classified as Comfortable (20°C – 24°C). Pleasant and revitalizing. Great for most beachgoers and active recreational swimming. Live readings load automatically.
What are the warmest months for swimming in La Costa Beach?
The highest water temperatures in La Costa Beach typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in La Costa Beach in September?
Historically in September, water temperatures in La Costa Beach average around20.2°C (68.4°F), fluctuating between a recorded minimum of 16.7°C and a maximum of 23.1°C.