Monument 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.
Monument Beach water temperature
Pleasant and revitalizing. Great for most beachgoers and active recreational swimming.
7-Day Water Temperature Forecast
Monument Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Monument 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 Monument Beach
Is the sea warm enough to swim in Monument Beach today?
Typical sea surface temperature in Monument 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 Monument Beach?
The highest water temperatures in Monument Beach typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Monument Beach in September?
Historically in September, water temperatures in Monument Beach average around20.2°C (68.4°F), fluctuating between a recorded minimum of 17.4°C and a maximum of 23.4°C.