Surfside Beach Sea Water Temperature
A cool beach on the James Bay, warmest around August at about 17.9°C. Today's reading, 7-day forecast, and monthly averages below.
Surfside Beach water temperature
Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.
7-Day Water Temperature Forecast
Surfside Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Surfside Beach occurs inJune, July, August, September — peaking at17.9°C (64.2°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 | 4°C | 5.7°C | 7.8°C | Very Cold (< 16°C) |
| February | 2.8°C | 4.2°C | 5.6°C | Very Cold (< 16°C) |
| March | 1.8°C | 3.8°C | 5.1°C | Very Cold (< 16°C) |
| April | 3.6°C | 5.6°C | 8°C | Very Cold (< 16°C) |
| May | 6.6°C | 9°C | 14°C | Very Cold (< 16°C) |
| June | 9.3°C | 13.3°C | 16.9°C | Very Cold (< 16°C) |
| July | 14.1°C | 16.5°C | 19.8°C | Cool / Refreshing (16°C – 20°C) |
| August | 15.7°C | 17.9°C | 20.7°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 13.4°C | 16.1°C | 17.9°C | Cool / Refreshing (16°C – 20°C) |
| October | 9.5°C | 12.7°C | 15.6°C | Very Cold (< 16°C) |
| November | 8.1°C | 9.8°C | 12.9°C | Very Cold (< 16°C) |
| December | 5.3°C | 7.6°C | 10.1°C | Very Cold (< 16°C) |
Swimming FAQs for Surfside Beach
Is the sea warm enough to swim in Surfside Beach today?
Typical sea surface temperature in Surfside Beach this time of year is 16.1°C (61°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 Surfside Beach?
The highest water temperatures in Surfside Beach typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Surfside Beach in September?
Historically in September, water temperatures in Surfside Beach average around16.1°C (61.0°F), fluctuating between a recorded minimum of 13.4°C and a maximum of 17.9°C.