Grimmells Beach Sea Water Temperature
A temperate beach on the James Bay, warmest around August at about 21.8°C. Today's reading, 7-day forecast, and monthly averages below.
Grimmells Beach water temperature
Pleasant and revitalizing. Great for most beachgoers and active recreational swimming.
7-Day Water Temperature Forecast
Grimmells Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Grimmells Beach occurs inJune, July, August, September — peaking at21.8°C (71.2°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 | 2°C | 5.2°C | 8.9°C | Very Cold (< 16°C) |
| February | 1.1°C | 3.1°C | 5.3°C | Very Cold (< 16°C) |
| March | -0.7°C | 3.6°C | 6.7°C | Very Cold (< 16°C) |
| April | 3.1°C | 7.3°C | 11.4°C | Very Cold (< 16°C) |
| May | 9.1°C | 11.8°C | 16.7°C | Very Cold (< 16°C) |
| June | 10.2°C | 16.8°C | 19.5°C | Cool / Refreshing (16°C – 20°C) |
| July | 17.3°C | 20.6°C | 23.6°C | Comfortable (20°C – 24°C) |
| August | 18.8°C | 21.8°C | 24.7°C | Comfortable (20°C – 24°C) |
| SeptemberCurrent | 17.4°C | 20.2°C | 23.4°C | Comfortable (20°C – 24°C) |
| October | 13.8°C | 16.8°C | 19.9°C | Cool / Refreshing (16°C – 20°C) |
| November | 9.1°C | 12.6°C | 16.1°C | Very Cold (< 16°C) |
| December | 5.7°C | 8.4°C | 11°C | Very Cold (< 16°C) |
Swimming FAQs for Grimmells Beach
Is the sea warm enough to swim in Grimmells Beach today?
Typical sea surface temperature in Grimmells Beach this time of year is 20.2°C (68.4°F) — classified as Comfortable (20°C – 24°C). Pleasant and revitalizing. Great for most beachgoers and active recreational swimming. Live readings load automatically.
What are the warmest months for swimming in Grimmells Beach?
The highest water temperatures in Grimmells Beach typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Grimmells Beach in September?
Historically in September, water temperatures in Grimmells Beach average around20.2°C (68.4°F), fluctuating between a recorded minimum of 17.4°C and a maximum of 23.4°C.