Arched Rock Beach Sea Water Temperature
A cool beach on the Coastal Waters, warmest around September at about 12.8°C. Today's reading, 7-day forecast, and monthly averages below.
Arched Rock Beach water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Arched Rock Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Arched Rock Beach occurs inAugust, September, October, November — peaking at12.8°C (55°F) in September.
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 | 10°C | 11.4°C | 12.7°C | Very Cold (< 16°C) |
| February | 9°C | 11.3°C | 13.9°C | Very Cold (< 16°C) |
| March | 9.2°C | 11.2°C | 13.7°C | Very Cold (< 16°C) |
| April | 8.8°C | 10.5°C | 12.4°C | Very Cold (< 16°C) |
| May | 8°C | 10.2°C | 13.5°C | Very Cold (< 16°C) |
| June | 9.3°C | 11.1°C | 12.7°C | Very Cold (< 16°C) |
| July | 8.8°C | 11.8°C | 16°C | Very Cold (< 16°C) |
| August | 9.6°C | 12.2°C | 14.5°C | Very Cold (< 16°C) |
| SeptemberCurrent | 10°C | 12.8°C | 17.1°C | Very Cold (< 16°C) |
| October | 10.2°C | 12.5°C | 15.7°C | Very Cold (< 16°C) |
| November | 10.1°C | 12.5°C | 15°C | Very Cold (< 16°C) |
| December | 9.9°C | 11.9°C | 15.1°C | Very Cold (< 16°C) |
Swimming FAQs for Arched Rock Beach
Is the sea warm enough to swim in Arched Rock Beach today?
Typical sea surface temperature in Arched Rock 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 Arched Rock Beach?
The highest water temperatures in Arched Rock Beach typically occur duringAugust, September, October, November, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Arched Rock Beach in September?
Historically in September, water temperatures in Arched Rock Beach average around12.8°C (55.0°F), fluctuating between a recorded minimum of 10°C and a maximum of 17.1°C.