Castlepoint Beach Sea Water Temperature
A temperate beach on the Tasman Sea, warmest around February at about 18.2°C. Today's reading, 7-day forecast, and monthly averages below.
Castlepoint Beach water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Castlepoint Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Castlepoint Beach occurs inJanuary, February, March, April — peaking at18.2°C (64.8°F) in February.
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 | 15.4°C | 17.2°C | 20.2°C | Cool / Refreshing (16°C – 20°C) |
| February | 16.6°C | 18.2°C | 19.5°C | Cool / Refreshing (16°C – 20°C) |
| March | 15.8°C | 17.4°C | 19.2°C | Cool / Refreshing (16°C – 20°C) |
| April | 14.5°C | 15.9°C | 17.8°C | Very Cold (< 16°C) |
| May | 13.4°C | 15.2°C | 17.9°C | Very Cold (< 16°C) |
| June | 12.6°C | 13.9°C | 15.1°C | Very Cold (< 16°C) |
| July | 11.4°C | 13.1°C | 14.5°C | Very Cold (< 16°C) |
| August | 11°C | 12.6°C | 14.3°C | Very Cold (< 16°C) |
| SeptemberCurrent | 11.7°C | 12.9°C | 14.8°C | Very Cold (< 16°C) |
| October | 11.8°C | 13.4°C | 15°C | Very Cold (< 16°C) |
| November | 12.7°C | 14.4°C | 16.1°C | Very Cold (< 16°C) |
| December | 14.3°C | 15.9°C | 18.1°C | Very Cold (< 16°C) |
Swimming FAQs for Castlepoint Beach
Is the sea warm enough to swim in Castlepoint Beach today?
Typical sea surface temperature in Castlepoint Beach this time of year is 12.9°C (55.2°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 Castlepoint Beach?
The highest water temperatures in Castlepoint Beach typically occur duringJanuary, February, March, April, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Castlepoint Beach in September?
Historically in September, water temperatures in Castlepoint Beach average around12.9°C (55.2°F), fluctuating between a recorded minimum of 11.7°C and a maximum of 14.8°C.