Water temperature in Castlepoint

This data the coastal Castlepoint sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Castlepoint

Water temperature in Castlepoint today is 12°C. Based on our historical data over a period of ten years, the warmest water in this day in the Pacific Ocean near Castlepoint was recorded in 2023 and was 12.8°C, and the coldest was recorded in 2008 at 11.3°C. Sea water temperature in Castlepoint is expected to rise to 12.5°C in the next 10 days. September average water temperature in Castlepoint is 12.5°C, the minimum temperature is 10.7°C, and the maximum is 14.5°C.

Throughout the year, the water temperature in Castlepoint does not rise above 20°C and therefore is not suitable for comfortable swimming. The average water temperature in Castlepoint in winter reaches 12.9°C, in spring 13.2°C, in summer the average temperature rises to 16.8°C, and in autumn it is 15.9°C.

Castlepoint water temperature now

The sea salinity in Castlepoint is 35.16‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Castlepoint for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Castlepoint. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Castlepoint. Data in table shown for 6 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Castlepoint

Castlepoint weather forecast

Current temperature and weather

Data in a table show Castlepoint temperature today (6 September 2025). For more information and forecast for a few days, go to the weather forecast Castlepoint.

0-3 h	3-6 h	6-9 h	9-12 h
12.3°C	12.2°C	12.2°C	13°C

12-15 h	15-18 h	18-21 h	21-24 h
14.6°C	16°C	14.4°C	13.7°C

Castlepoint water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Castlepoint. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Castlepoint on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Castlepoint

The nearest beaches and cities from Castlepoint with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Waitarere Beach	13°C	15°C		2.32 m
Otaki Beach	12.7°C	13°C		2.44 m
Waikanae	12.7°C	13°C		2.15 m
Foxton Beach	13.2°C	17°C		2.52 m
Paraparaumu	12.8°C	13°C		2.33 m
Raumati Beach	12.9°C	13°C		2.33 m
Paekakariki	12.8°C	13°C		2.33 m
Pukerua Bay	12.9°C	13°C		2.28 m
Kapiti Island	13.4°C	13°C		2.43 m
Lower Hutt	12.1°C	14°C		1.46 m

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Our report for Castlepoint is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.