Dunn Beach Sea Water Temperature
A cool beach on the James Bay, warmest around August at about 13.1°C. Today's reading, 7-day forecast, and monthly averages below.
Dunn Beach water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Dunn Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Dunn Beach occurs inJuly, August, September, October — peaking at13.1°C (55.6°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°C | 8.4°C | Very Cold (< 16°C) |
| February | 2.6°C | 4.1°C | 5.8°C | Very Cold (< 16°C) |
| March | 1.4°C | 3.6°C | 6°C | Very Cold (< 16°C) |
| April | 2.4°C | 4.6°C | 6.4°C | Very Cold (< 16°C) |
| May | 4.7°C | 6.7°C | 9.5°C | Very Cold (< 16°C) |
| June | 6.7°C | 9.4°C | 12°C | Very Cold (< 16°C) |
| July | 9.1°C | 11.7°C | 14.6°C | Very Cold (< 16°C) |
| August | 9.8°C | 13.1°C | 16°C | Very Cold (< 16°C) |
| SeptemberCurrent | 10.9°C | 12.8°C | 14.8°C | Very Cold (< 16°C) |
| October | 9.9°C | 11.7°C | 13.3°C | Very Cold (< 16°C) |
| November | 8.1°C | 10°C | 12.5°C | Very Cold (< 16°C) |
| December | 5.9°C | 8.1°C | 10°C | Very Cold (< 16°C) |
Swimming FAQs for Dunn Beach
Is the sea warm enough to swim in Dunn Beach today?
Typical sea surface temperature in Dunn Beach this time of year is 12.8°C (55°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 Dunn Beach?
The highest water temperatures in Dunn Beach typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Dunn Beach in September?
Historically in September, water temperatures in Dunn Beach average around12.8°C (55.0°F), fluctuating between a recorded minimum of 10.9°C and a maximum of 14.8°C.