Coast Guard Beach Sea Water Temperature
A cool beach on the James Bay, warmest around August at about 20.1°C. Today's reading, 7-day forecast, and monthly averages below.
Coast Guard Beach water temperature
Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.
7-Day Water Temperature Forecast
Coast Guard Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Coast Guard Beach occurs inJune, July, August, September — peaking at20.1°C (68.2°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 | 4.4°C | 6.4°C | 8.3°C | Very Cold (< 16°C) |
| February | 3.4°C | 4.8°C | 6.2°C | Very Cold (< 16°C) |
| March | 3°C | 4.6°C | 6.1°C | Very Cold (< 16°C) |
| April | 3.7°C | 6.1°C | 9.2°C | Very Cold (< 16°C) |
| May | 7.2°C | 9.8°C | 14.6°C | Very Cold (< 16°C) |
| June | 9.4°C | 14.6°C | 18.2°C | Very Cold (< 16°C) |
| July | 15.9°C | 18.8°C | 22°C | Cool / Refreshing (16°C – 20°C) |
| August | 17.2°C | 20.1°C | 22.2°C | Comfortable (20°C – 24°C) |
| SeptemberCurrent | 15.2°C | 18.3°C | 20.8°C | Cool / Refreshing (16°C – 20°C) |
| October | 10.9°C | 14.4°C | 17.5°C | Very Cold (< 16°C) |
| November | 8.9°C | 10.8°C | 14.2°C | Very Cold (< 16°C) |
| December | 6.3°C | 8.3°C | 10.5°C | Very Cold (< 16°C) |
Swimming FAQs for Coast Guard Beach
Is the sea warm enough to swim in Coast Guard Beach today?
Typical sea surface temperature in Coast Guard Beach this time of year is 18.3°C (64.9°F) — classified as Cool / Refreshing (16°C – 20°C). Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing. Live readings load automatically.
What are the warmest months for swimming in Coast Guard Beach?
The highest water temperatures in Coast Guard Beach typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Coast Guard Beach in September?
Historically in September, water temperatures in Coast Guard Beach average around18.3°C (64.9°F), fluctuating between a recorded minimum of 15.2°C and a maximum of 20.8°C.