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