Seaside Beach Sea Water Temperature
A cool beach on the Coastal Waters, warmest around July at about 14.4°C. Today's reading, 7-day forecast, and monthly averages below.
Seaside Beach water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Seaside Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Seaside Beach occurs inJune, July, August, September — peaking at14.4°C (57.9°F) in July.
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 | 7.3°C | 9.7°C | 11.3°C | Very Cold (< 16°C) |
| February | 7.3°C | 9.2°C | 11.1°C | Very Cold (< 16°C) |
| March | 8.4°C | 9.6°C | 11.3°C | Very Cold (< 16°C) |
| April | 9°C | 10.5°C | 12.3°C | Very Cold (< 16°C) |
| May | 10.6°C | 12.3°C | 14.4°C | Very Cold (< 16°C) |
| June | 11.7°C | 13.9°C | 15.7°C | Very Cold (< 16°C) |
| July | 10.8°C | 14.4°C | 16.7°C | Very Cold (< 16°C) |
| August | 11.9°C | 14.4°C | 17.9°C | Very Cold (< 16°C) |
| SeptemberCurrent | 12.7°C | 14.2°C | 16.4°C | Very Cold (< 16°C) |
| October | 11.3°C | 12.7°C | 15.5°C | Very Cold (< 16°C) |
| November | 8.6°C | 11.4°C | 14°C | Very Cold (< 16°C) |
| December | 8.9°C | 10.4°C | 13.2°C | Very Cold (< 16°C) |
Swimming FAQs for Seaside Beach
Is the sea warm enough to swim in Seaside Beach today?
Typical sea surface temperature in Seaside Beach this time of year is 14.2°C (57.6°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 Seaside Beach?
The highest water temperatures in Seaside Beach typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Seaside Beach in September?
Historically in September, water temperatures in Seaside Beach average around14.2°C (57.6°F), fluctuating between a recorded minimum of 12.7°C and a maximum of 16.4°C.