Sunnyside Beach Sea Water Temperature
A cool beach on the James Bay, warmest around August at about 21.1°C. Today's reading, 7-day forecast, and monthly averages below.
Sunnyside Beach water temperature
Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.
7-Day Water Temperature Forecast
Sunnyside Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Sunnyside Beach occurs inJune, July, August, September — peaking at21.1°C (70°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 | 2.3°C | 3.8°C | 5.1°C | Very Cold (< 16°C) |
| February | 1.3°C | 3.2°C | 4.7°C | Very Cold (< 16°C) |
| March | 1.3°C | 3.3°C | 5.4°C | Very Cold (< 16°C) |
| April | 2.3°C | 3.9°C | 6.1°C | Very Cold (< 16°C) |
| May | 4°C | 7.6°C | 16.6°C | Very Cold (< 16°C) |
| June | 9.4°C | 14.8°C | 20°C | Very Cold (< 16°C) |
| July | 13°C | 19.7°C | 22.7°C | Cool / Refreshing (16°C – 20°C) |
| August | 18°C | 21.1°C | 24.3°C | Comfortable (20°C – 24°C) |
| SeptemberCurrent | 13.9°C | 19.4°C | 22.8°C | Cool / Refreshing (16°C – 20°C) |
| October | 7.7°C | 13.8°C | 18.9°C | Very Cold (< 16°C) |
| November | 4.8°C | 8°C | 13.5°C | Very Cold (< 16°C) |
| December | 3.4°C | 5°C | 6.9°C | Very Cold (< 16°C) |
Swimming FAQs for Sunnyside Beach
Is the sea warm enough to swim in Sunnyside Beach today?
Typical sea surface temperature in Sunnyside Beach this time of year is 19.4°C (66.9°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 Sunnyside Beach?
The highest water temperatures in Sunnyside Beach typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Sunnyside Beach in September?
Historically in September, water temperatures in Sunnyside Beach average around19.4°C (66.9°F), fluctuating between a recorded minimum of 13.9°C and a maximum of 22.8°C.