Long Beach Sea Water Temperature
A temperate beach on the James Bay, warmest around August at about 22.7°C. Today's reading, 7-day forecast, and monthly averages below.
Long Beach water temperature
Pleasant and revitalizing. Great for most beachgoers and active recreational swimming.
7-Day Water Temperature Forecast
Long Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Long Beach occurs inJune, July, August, September — peaking at22.7°C (72.9°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 | 3.3°C | 6.5°C | 9.2°C | Very Cold (< 16°C) |
| February | 2.8°C | 4.5°C | 6.7°C | Very Cold (< 16°C) |
| March | 2°C | 4.9°C | 8.3°C | Very Cold (< 16°C) |
| April | 4.2°C | 7.7°C | 11.5°C | Very Cold (< 16°C) |
| May | 10°C | 12.5°C | 17.5°C | Very Cold (< 16°C) |
| June | 12°C | 18.1°C | 21.5°C | Cool / Refreshing (16°C – 20°C) |
| July | 19.7°C | 22.1°C | 24.7°C | Comfortable (20°C – 24°C) |
| August | 18.8°C | 22.7°C | 24.8°C | Comfortable (20°C – 24°C) |
| SeptemberCurrent | 18.8°C | 21.4°C | 24°C | Comfortable (20°C – 24°C) |
| October | 14.3°C | 17.4°C | 21.6°C | Cool / Refreshing (16°C – 20°C) |
| November | 10.6°C | 13.4°C | 16.5°C | Very Cold (< 16°C) |
| December | 6.7°C | 9.6°C | 11.4°C | Very Cold (< 16°C) |
Swimming FAQs for Long Beach
Is the sea warm enough to swim in Long Beach today?
Typical sea surface temperature in Long Beach this time of year is 21.4°C (70.5°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 Long Beach?
The highest water temperatures in Long Beach typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Long Beach in September?
Historically in September, water temperatures in Long Beach average around21.4°C (70.5°F), fluctuating between a recorded minimum of 18.8°C and a maximum of 24°C.