World Resorts South Africa Capetown Weather

Capetown Sea Temperature in September

Average sea water temperature in September:
+57.4°F
Minimum sea water temperature in September: 63.0°F
Maximum sea water temperature in September: 48.0°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 56.9°F. The highest and lowest sea temperatures during the month were 59.2°F and 53.6°F.

Monthly sea water temperature in Capetown, °F

Which South Africa resorts have warmest sea in September?

Place name September 2025 September 2024
Durban 70.2°F 69.3°F
Port Elizabeth 64.4°F 63.6°F
Capetown 56.9°F 53.7°F

Best time for vacation in Capetown

Sunniest months:
January 24 days
February 23 days
December 22 days
Warmest months:
January 77.2 °F
February 77.1 °F
March 74.7 °F
Warmest sea temp:
February 62.2 °F
January 62.0 °F
March 60.4 °F
Coldest months:
July 60.6 °F
August 61.4 °F
June 61.9 °F
Rainiest months:
June 6 days
August 5 days
July 5 days
Windiest months:
January 11.8 mph
December 11.7 mph
November 11.6 mph

Capetown on a weather map

Current weather
12:50
Capetown
+79°F
N 17 mph
Feels like: +79°F
Precip.: 0%
Places in South Africa:
Name
°F
Durban
+75°F
Johannesburg
+70°F
Capetown
+79°F
Pilanesberg
+82°F
Port Elizabeth
+72°F
Pretoria
+84°F
Hazyview
+82°F
24 Hours Forecast
Capetown
Local time: 12:50
December 20, saturday
1500
75°F
N
21 mph
1800
75°F
N
22 mph
2100
72°F
NW
17 mph
December 21, sunday
0000
68°F
NW
12 mph
0300
66°F
NW
9 mph
0600
64°F
NW
6 mph
0900
73°F
NW
7 mph
1200
82°F
N
9 mph
Units of measurement: °C / °F