South Jetty Beach Sea Water Temperature
A temperate beach on the Gulf of California, warmest around September at about 19.2°C. Today's reading, 7-day forecast, and monthly averages below.
South Jetty Beach water temperature
Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.
7-Day Water Temperature Forecast
South Jetty Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in South Jetty Beach occurs inJuly, August, September, October — peaking at19.2°C (66.6°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 | 12.5°C | 14.3°C | 16.2°C | Very Cold (< 16°C) |
| February | 12.6°C | 14.1°C | 16.9°C | Very Cold (< 16°C) |
| March | 12.5°C | 14°C | 17°C | Very Cold (< 16°C) |
| April | 12.6°C | 14.4°C | 16.1°C | Very Cold (< 16°C) |
| May | 14°C | 15.4°C | 17.4°C | Very Cold (< 16°C) |
| June | 12.5°C | 17°C | 19°C | Cool / Refreshing (16°C – 20°C) |
| July | 15.3°C | 18.6°C | 21°C | Cool / Refreshing (16°C – 20°C) |
| August | 15.9°C | 18.8°C | 21.6°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 15.3°C | 19.2°C | 22.7°C | Cool / Refreshing (16°C – 20°C) |
| October | 14.2°C | 18.1°C | 22.5°C | Cool / Refreshing (16°C – 20°C) |
| November | 15°C | 16.8°C | 19.2°C | Cool / Refreshing (16°C – 20°C) |
| December | 13.4°C | 15.3°C | 18.3°C | Very Cold (< 16°C) |
Swimming FAQs for South Jetty Beach
Is the sea warm enough to swim in South Jetty Beach today?
Typical sea surface temperature in South Jetty Beach this time of year is 19.2°C (66.6°F) — classified as Cool / Refreshing (16°C – 20°C). Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing. Live readings load automatically.
What are the warmest months for swimming in South Jetty Beach?
The highest water temperatures in South Jetty Beach typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in South Jetty Beach in September?
Historically in September, water temperatures in South Jetty Beach average around19.2°C (66.6°F), fluctuating between a recorded minimum of 15.3°C and a maximum of 22.7°C.