Measurements:
°C
°F
Capetown
68°F
N 5 mph
Feels like: 68°F
Precip: 5%
World Resorts South Africa Capetown Weather

Capetown Sea Water Temperature

Current Sea Water Temperature:
+52.4°F
Maximum Sea Water Temperature in September: 64.4°F
Minimum Sea Water Temperature in September: 47.8°F
Average water temperature in September: 58.1°F

Sea Water Temperature for the Last 10 Days:

September 08 52.4°F September 03 55.0°F
September 07 52.0°F September 02 54.8°F
September 06 52.4°F September 01 55.2°F
September 05 51.8°F August 31 55.2°F
September 04 54.0°F August 30 56.2°F

When is the Warmest Sea for Capetown?

According to our data for the last three years for Capetown the highest average sea water temperature was in February, January and March.

Average Water Temperature by Month, °F

Sea Water Temperature in February

Select Year: 2026 2025 2024

The average sea surface temperature in February 2026 for Capetown was 61.1°F. The maximum and minimum values were 53.6°F and 68.2°F respectively.

Sea Water Temperature in January

Select Year: 2026 2025 2024

The average sea surface temperature in January 2026 for Capetown was 57.6°F. The maximum and minimum values were 52.8°F and 62.0°F respectively.

Sea Water Temperature in March

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Capetown was 63.9°F. The maximum and minimum values were 59.6°F and 69.0°F respectively.

Best Time to Visit Capetown
The most sunny months:
January 24 days
February 22 days
December 22 days
The most warm months:
January 80.0 °F
February 79.9 °F
March 77.4 °F
Warmest sea temperature:
February 63.4 °F
January 63.0 °F
March 61.7 °F
The most cold months:
July 61.9 °F
August 62.8 °F
June 63.2 °F
The most rainy months:
June 5 days
August 4 days
July 4 days
The most windy months:
January 11 mph
December 11 mph
November 11 mph

Capetown on the Weather Map

South Africa Resorts:
NAME
Capetown +68
Durban +64
Hazyview +50
Johannesburg +62
Pilanesberg +68
Port Elizabeth +70
Pretoria +62
24 Hours Weather Forecast
Capetown
Local time: 23:03
09 sep, wednesday
0000 68°F
N
5 mph
0300 64°F
N
5 mph
0600 62°F
N
4 mph
0900 66°F
N
6 mph
1200 74°F
N
7 mph
1500 70°F
N
9 mph
1800 64°F
N
9 mph
2100 62°F
N
8 mph