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 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 60.6 °F
August 61.4 °F
June 62.0 °F
Rainiest months:
June 5 days
August 5 days
July 5 days
Windiest months:
January 11.7 mph
December 11.7 mph
November 11.6 mph

Capetown on a weather map

Current weather
23:27
Capetown
+57°F
S 11 mph
Feels like: +55°F
Precip.: 25%
Places in South Africa:
Name
°F
Durban
+64°F
Johannesburg
+52°F
Capetown
+57°F
Pilanesberg
+54°F
Port Elizabeth
+63°F
Pretoria
+54°F
Hazyview
+50°F
24 Hours Forecast
Capetown
Local time: 23:27
June 28, sunday
0000
57°F
S
11 mph
0300
57°F
S
16 mph
0600
57°F
S
19 mph
0900
59°F
S
23 mph
1200
57°F
S
23 mph
1500
57°F
SE
14 mph
1800
57°F
E
11 mph
2100
55°F
NE
12 mph
Units of measurement: °C / °F