World sea water temperatures

Water temperature in Alexander Bay

Home > South Africa > Alexander Bay

This data the coastal Alexander 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 Alexander Bay

Water temperature in Alexander Bay today is 11.2°C. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Alexander Bay was recorded in 2014 and was 13.9°C, and the coldest was recorded in 2024 at 10.6°C. Sea water temperature in Alexander Bay is expected to rise to 12.3°C in the next 10 days. September average water temperature in Alexander Bay is 12.3°C, the minimum temperature is 9.3°C, and the maximum is 14.5°C.

Throughout the year, the water temperature in Alexander Bay does not rise above 20°C and therefore is not suitable for comfortable swimming. But on some days of January, February, the water temperature warms up to 20°C and above. The average water temperature in Alexander Bay in winter reaches 12.7°C, in spring 13.2°C, in summer the average temperature rises to 16.2°C, and in autumn it is 14.5°C.

Alexander Bay water temperature now


7 September 2025
today temp
11.2°C
6 September 2025
yesterday temp
11.1°C


The sea salinity in Alexander Bay is 32.67‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Alexander 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 Alexander 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 Alexander 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
8' 0"7' 10"7' 8"7' 5"
2.45 m2.4 m2.34 m2.26 m
12-15 h15-18 h18-21 h21-24 h
7' 3"7' 1"7' 0"7' 0"
2.22 m2.17 m2.14 m2.14 m

Surf report in Alexander Bay

Alexander Bay wave height and direction

Alexander Bay weather forecast

Alexander Bay wind speed and direction

Current temperature and weather

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

0-3 h3-6 h6-9 h9-12 h
12.6°C12.1°C12.4°C14.2°C
12-15 h15-18 h18-21 h21-24 h
15.7°C16.1°C15.1°C13.9°C

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

Alexander Bay water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Alexander 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 Alexander 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
January16.5°C11.5°C20.9°Ccold
Sea water temperature in Alexander Bay in January
February16.4°C11.9°C20.2°Ccold
Sea water temperature in Alexander Bay in February
March15.7°C11.6°C18.9°Ccold
Sea water temperature in Alexander Bay in March
April14.2°C9.6°C17.5°Ccold
Sea water temperature in Alexander Bay in April
May13.6°C10°C16.2°Ccold
Sea water temperature in Alexander Bay in May
June13.1°C10.1°C16°Ccold
Sea water temperature in Alexander Bay in June
July12.6°C9.6°C14.9°Ccold
Sea water temperature in Alexander Bay in July
August12.3°C10.1°C13.9°Ccold
Sea water temperature in Alexander Bay in August
September12.3°C9.3°C14.5°Ccold
Sea water temperature in Alexander Bay in September
October13.1°C10°C16.8°Ccold
Sea water temperature in Alexander Bay in October
November14.1°C10.5°C17.6°Ccold
Sea water temperature in Alexander Bay in November
December15.6°C10.5°C20.5°Ccold
Sea water temperature in Alexander Bay in December

Chart monthly average water temperature in Alexander Bay

Water temperature in Alexander 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 Alexander 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
Hondeklip Bay11.1°C25°C2.4 m
Skeleton Bay11.2°C17°C1.86 m
Strandfontein11.5°C16°C2.04 m
Lambert's Bay11.8°C19°C1.67 m
Elands Bay11.4°C24°C1.5 m
Dwarskersbos12.6°C23°C0.95 m
Britannia Bay11.6°C18°C1.72 m
St Helena Bay12.1°C18°C1.12 m
Paternoster11.4°C18°C2.39 m
Velddrif12.3°C23°C0.74 m

South Africa photo gallery

  • South Africa
  • South Africa
  • Noordhoek, western cape
  • South Africa

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 Alexander Bay

Alexanderbaai

Vote for South Africa best beach

Current rating: (0 votes cast)

If you know this place (Alexander Bay) and want to leave your comment or rate it, then fill out the following form.

Your rating for this place:

Does this place have a "Blue Flag" award [1], are there rip currents and what type of beach is it, sand or pebble:

Is the beach a dog-friendly place, child friendly or a nudist beach?


Your comments for this place (water quality, crowds, facilities, activities, lifeguards, service etc.):



[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.

Get widget or API for your website

Our report for Alexander 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.

Contact us: admin@seatemperature.info
privacy policy