Water temperature in Windmill Beach

This data the coastal Windmill Beach 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 Windmill Beach

Water temperature in Windmill Beach today is 15°C. Based on our historical data over a period of ten years, the warmest water in this day in Windmill Beach was recorded in 2019 and was 16°C, and the coldest was recorded in 2015 at 13.9°C. Sea water temperature in Windmill Beach is expected to be constant 15°C in the next 10 days. September average water temperature in Windmill Beach is 14.9°C, the minimum temperature is 13.2°C, and the maximum is 16.7°C.

The swimming season in Windmill Beach lasts from January to February. During those months, Windmill Beach water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Windmill Beach in winter reaches 14.8°C, in spring 15.7°C, in summer the average temperature rises to 18.5°C, and in autumn it is 16.5°C.

Windmill Beach water temperature now

The sea salinity in Windmill Beach is 33.22‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Windmill Beach 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 Windmill Beach. 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 Windmill Beach. Data in table shown for 7 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Windmill Beach

Windmill Beach weather forecast

Current temperature and weather

Data in a table show Windmill Beach temperature today (7 September 2025). For more information and forecast for a few days, go to the weather forecast Windmill Beach.

0-3 h	3-6 h	6-9 h	9-12 h
13.8°C	13.5°C	13.5°C	14.1°C

12-15 h	15-18 h	18-21 h	21-24 h
15.4°C	15.7°C	15°C	14.6°C

Windmill Beach water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Windmill Beach. 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 Windmill Beach 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 Windmill Beach

The nearest beaches and cities from Windmill Beach 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
Hout Bay	11.9°C	17°C		2.45 m
Oudekraal Beach	12.2°C	17°C		2.43 m
Camps Bay	13°C	17°C		2.43 m
Sunset Beach	13.3°C	17°C		2.43 m
Clifton	13°C	17°C		2.43 m
Bakoven	13°C	17°C		2.43 m
Saunders Rock Beach	13°C	17°C		2.43 m
Bantry Bay	13°C	17°C		2.43 m
Sea Point	13.7°C	17°C		2.39 m
Rooiels	15.1°C	20°C		2.2 m

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Our report for Windmill Beach 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.