Third Beach Sea Water Temperature
A cool beach on the Coastal Waters, warmest around August at about 17.7°C. Today's reading, 7-day forecast, and monthly averages below.
Third Beach water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Third Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Third Beach occurs inJune, July, August, September — peaking at17.7°C (63.9°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 | 6°C | 6.9°C | 8.5°C | Very Cold (< 16°C) |
| February | 5.5°C | 6.9°C | 8.1°C | Very Cold (< 16°C) |
| March | 6.4°C | 7.8°C | 9.2°C | Very Cold (< 16°C) |
| April | 8.2°C | 9.8°C | 11.9°C | Very Cold (< 16°C) |
| May | 10.6°C | 13.2°C | 15.2°C | Very Cold (< 16°C) |
| June | 13.5°C | 15.5°C | 17.8°C | Very Cold (< 16°C) |
| July | 15.1°C | 17.6°C | 20°C | Cool / Refreshing (16°C – 20°C) |
| August | 13.6°C | 17.7°C | 19.8°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 12.8°C | 15.4°C | 19.2°C | Very Cold (< 16°C) |
| October | 9.2°C | 11.8°C | 15°C | Very Cold (< 16°C) |
| November | 7.5°C | 9.1°C | 11.1°C | Very Cold (< 16°C) |
| December | 6°C | 7.6°C | 9.8°C | Very Cold (< 16°C) |
Swimming FAQs for Third Beach
Is the sea warm enough to swim in Third Beach today?
Typical sea surface temperature in Third Beach this time of year is 15.4°C (59.7°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 Third Beach?
The highest water temperatures in Third Beach typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Third Beach in September?
Historically in September, water temperatures in Third Beach average around15.4°C (59.7°F), fluctuating between a recorded minimum of 12.8°C and a maximum of 19.2°C.