Weather in September
Sea temperature
In Port Alfred, South Africa, the average seawater temperature in September is 20.3°C (68.5°F).Note: When the surface water temperature is 20.3°C (68.5°F), most do not enjoy swimming. Breathing control becomes more complex as temperatures drop below 21°C (69.8°F).
Daylight
In September, the average length of the day is 11h and 53min.On the first day of September in Port Alfred, sunrise is at 06:29 and sunset at 17:54. On the last day of the month, sunrise is at 05:50 and sunset at 18:14 SAST.
Frequently asked questions
How cold is the water in September in Port Alfred?
In Port Alfred, the average seawater temperature in September is 20.3°C (68.5°F). For swimming, a surface water temperature of 20.3°C (68.5°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
What is the average length of the day in September in Port Alfred?
In September, the average day length in Port Alfred, South Africa, is 11h and 53min.
When is the sunrise / sunset in September in Port Alfred?
On the first day of September, sunrise is at 06:29 and sunset at 17:54. On the last day of the month, sunrise is at 05:50 and sunset at 18:14 SAST.
Average sea temperature in September
Port Alfred, South Africa
- Average sea temperature in September: 20.3°C
The best month for swimming (with the highest average sea temperature) is March (23.4°C).
The coldest month (with the lowest average sea temperature) is August (19.5°C).
Average daylight in September
Port Alfred, South Africa
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
Port Alfred, South Africa
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