Rainbow Beach Sea Water Temperature
A cool beach on the James Bay, warmest around August at about 22.8°C. Today's reading, 7-day forecast, and monthly averages below.
Rainbow Beach water temperature
Pleasant and revitalizing. Great for most beachgoers and active recreational swimming.
7-Day Water Temperature Forecast
Rainbow Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Rainbow Beach occurs inJuly, August, September, October — peaking at22.8°C (73°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 | 0.4°C | 3.7°C | 6.2°C | Very Cold (< 16°C) |
| February | 0.4°C | 2.1°C | 3.7°C | Very Cold (< 16°C) |
| March | 0.4°C | 2.2°C | 6.4°C | Very Cold (< 16°C) |
| April | 2.2°C | 4°C | 6.8°C | Very Cold (< 16°C) |
| May | 3.7°C | 8.1°C | 18.8°C | Very Cold (< 16°C) |
| June | 5.9°C | 15°C | 20.7°C | Very Cold (< 16°C) |
| July | 16.4°C | 21.4°C | 25.6°C | Comfortable (20°C – 24°C) |
| August | 21°C | 22.8°C | 25.2°C | Comfortable (20°C – 24°C) |
| SeptemberCurrent | 17.3°C | 20.2°C | 22.7°C | Comfortable (20°C – 24°C) |
| October | 9.8°C | 15.1°C | 19.6°C | Very Cold (< 16°C) |
| November | 5°C | 9.8°C | 14.2°C | Very Cold (< 16°C) |
| December | 3.2°C | 6°C | 8.9°C | Very Cold (< 16°C) |
Swimming FAQs for Rainbow Beach
Is the sea warm enough to swim in Rainbow Beach today?
Typical sea surface temperature in Rainbow 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 Rainbow Beach?
The highest water temperatures in Rainbow Beach typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Rainbow Beach in September?
Historically in September, water temperatures in Rainbow Beach average around20.2°C (68.4°F), fluctuating between a recorded minimum of 17.3°C and a maximum of 22.7°C.