World sea water temperatures

Water temperature in St Francis Bay

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This data the coastal St Francis Bay 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 St Francis Bay

Water temperature in St Francis Bay today is 17.5°C. Based on our historical data over a period of ten years, the warmest water in this day in the Indian Ocean near St Francis Bay was recorded in 2007 and was 18.3°C, and the coldest was recorded in 2017 at 15.8°C. Sea water temperature in St Francis Bay is expected to drop to 17.2°C in the next 10 days. September average water temperature in St Francis Bay is 17°C, the minimum temperature is 15.2°C, and the maximum is 19°C.

The swimming season in St Francis Bay lasts from December to March. During those months, St Francis Bay water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in St Francis Bay in winter reaches 17.1°C, in spring 17.6°C, in summer the average temperature rises to 20.4°C, and in autumn it is 19°C.

St Francis Bay water temperature now


7 September 2025
today temp
17.5°C
6 September 2025
yesterday temp
17.6°C


The sea salinity in St Francis Bay is 35.28‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in St Francis Bay 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 St Francis Bay. 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 St Francis Bay. 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)

0-3 h3-6 h6-9 h9-12 h
5' 5"5' 3"5' 3"5' 2"
1.66 m1.61 m1.59 m1.58 m
12-15 h15-18 h18-21 h21-24 h
5' 2"5' 3"5' 3"5' 3"
1.58 m1.6 m1.61 m1.6 m

Surf report in St Francis Bay

St Francis Bay wave height and direction

St Francis Bay weather forecast

St Francis Bay wind speed and direction

Current temperature and weather

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

0-3 h3-6 h6-9 h9-12 h
12.4°C11.6°C10.6°C17.4°C
12-15 h15-18 h18-21 h21-24 h
21.1°C20.2°C16.9°C16°C

You may also be interested in other sections of our site for St Francis Bay: Sunrise and Sunset, Tides

St Francis Bay water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in St Francis Bay. 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 St Francis Bay 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

MonthAvrMinMax
January20.8°C16.4°C23.5°Cwarm
Sea water temperature in St Francis Bay in January
February20.7°C17°C23°Cwarm
Sea water temperature in St Francis Bay in February
March20°C14.8°C22.9°Cwarm
Sea water temperature in St Francis Bay in March
April18.6°C14.9°C21.2°Ccold
Sea water temperature in St Francis Bay in April
May18.3°C15°C21.3°Ccold
Sea water temperature in St Francis Bay in May
June17.5°C14.3°C19.2°Ccold
Sea water temperature in St Francis Bay in June
July17.1°C14.2°C19.9°Ccold
Sea water temperature in St Francis Bay in July
August16.8°C14.9°C18.7°Ccold
Sea water temperature in St Francis Bay in August
September17°C15.2°C19°Ccold
Sea water temperature in St Francis Bay in September
October17.5°C15.5°C19.4°Ccold
Sea water temperature in St Francis Bay in October
November18.3°C13.8°C21.1°Ccold
Sea water temperature in St Francis Bay in November
December19.6°C15.2°C23.7°Ccold
Sea water temperature in St Francis Bay in December

Chart monthly average water temperature in St Francis Bay

Water temperature in St Francis Bay

Where is the warmest sea water in the world?

If you want to plan a vacation on the beach and enjoy the warm sea, choose the day of the year, region and the minimum comfortable sea/ocean temperature that interests you. As a result, you will get a list of countries and cities in which the average sea temperature or maximum temperature on this day over the past 10 years exceeds your chosen value

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

Nearby beaches and cities

The nearest beaches and cities from St Francis Bay 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

WaterWeatherWave
Cape Saint Francis17.7°C20°C2.53 m
Seaview17.9°C20°C2.38 m
Summerstrand18.1°C20°C1.37 m
Kenton-on-Sea18.4°C20°C2.34 m
Sedgefield17.4°C17°C2.18 m
George17.2°C17°C2.09 m
Mossel Bay17°C17°C1.83 m
Hartenbos16.7°C17°C1.96 m
Stilbaai16.2°C17°C1.97 m
Gonubie17.7°C21°C1.96 m

South Africa photo gallery

  • South Africa
  • Taken from Chappies, the corner at Long Beach, Noordhoek.
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  • Rainbow, Gansbaai

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

Other names for St Francis Bay

Saint Francis Bay

Your comments

✎ Sheltered bay. Good swimming surfing and sailing

Vote for South Africa best beach

St Francis Bay has a "Blue Flag" [1] award

Warning! Possible Rip Currents swim with care. This place is subject to rip currents (fast moving outward water)

Sandy beach

Current rating: 4,0 (1 votes cast)

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for St Francis Bay 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.

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