World Resorts South Africa Capetown Weather

Capetown Sea Temperature in September

Average sea water temperature in September:
+57.3°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:
2026
2025
2024

The average sea water temperature in September of 2026 was 53.6°F. The highest and lowest sea temperatures during the month were 54.9°F and 51.6°F.

Monthly sea water temperature in Capetown, °F

Which South Africa resorts have warmest sea in September?

Place name September 2026 September 2025
Durban 68.9°F 70.2°F
Port Elizabeth 63.6°F 64.4°F
Capetown 53.6°F 56.9°F

Best time for vacation in Capetown

Sunniest months:
January 24 days
February 22 days
December 22 days
Warmest months:
January 77.0 °F
February 76.9 °F
March 74.7 °F
Warmest sea temp:
February 62.0 °F
January 61.7 °F
March 60.6 °F
Coldest months:
July 60.7 °F
August 61.5 °F
June 61.9 °F
Rainiest months:
June 5 days
August 4 days
July 4 days
Windiest months:
January 11.7 mph
December 11.7 mph
November 11.6 mph

Capetown on a weather map

Current weather
01:39
Capetown
+54°F
NW 14 mph
Feels like: +50°F
Precip.: 5%
Places in South Africa:
Name
°F
Durban
+61°F
Johannesburg
+63°F
Capetown
+54°F
Pilanesberg
+70°F
Port Elizabeth
+57°F
Pretoria
+64°F
Hazyview
+54°F
24 Hours Forecast
Capetown
Local time: 01:39
September 18, friday
0300
54°F
NW
14 mph
0600
52°F
NW
9 mph
0900
57°F
NW
12 mph
1200
64°F
NW
17 mph
1500
68°F
NW
22 mph
1800
63°F
NW
17 mph
2100
59°F
NW
9 mph
September 19, saturday
0000
55°F
NW
6 mph
Units of measurement: °C / °F