Saint Martins Beach Sea Water Temperature
A cool beach on the James Bay, warmest around August at about 13.9°C. Today's reading, 7-day forecast, and monthly averages below.
Saint Martins Beach water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Saint Martins Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Saint Martins Beach occurs inJuly, August, September, October — peaking at13.9°C (57°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 | 0.7°C | 4.1°C | 6.6°C | Very Cold (< 16°C) |
| February | 0°C | 2°C | 4.7°C | Very Cold (< 16°C) |
| March | -1.1°C | 1.5°C | 4.3°C | Very Cold (< 16°C) |
| April | 0°C | 2.6°C | 6.1°C | Very Cold (< 16°C) |
| May | 0.2°C | 5°C | 8.5°C | Very Cold (< 16°C) |
| June | 6.5°C | 9.1°C | 11.3°C | Very Cold (< 16°C) |
| July | 9.4°C | 12.4°C | 15.9°C | Very Cold (< 16°C) |
| August | 12.1°C | 13.9°C | 15.8°C | Very Cold (< 16°C) |
| SeptemberCurrent | 12.2°C | 13.9°C | 15.7°C | Very Cold (< 16°C) |
| October | 10.5°C | 12.8°C | 14.4°C | Very Cold (< 16°C) |
| November | 8.7°C | 10.7°C | 13.4°C | Very Cold (< 16°C) |
| December | 0.6°C | 7.2°C | 10°C | Very Cold (< 16°C) |
Swimming FAQs for Saint Martins Beach
Is the sea warm enough to swim in Saint Martins Beach today?
Typical sea surface temperature in Saint Martins Beach this time of year is 13.9°C (57°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 Saint Martins Beach?
The highest water temperatures in Saint Martins Beach typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Saint Martins Beach in September?
Historically in September, water temperatures in Saint Martins Beach average around13.9°C (57.0°F), fluctuating between a recorded minimum of 12.2°C and a maximum of 15.7°C.