Weather in September
Temperature
During August and September, Mossel Bay experiences its lowest temperatures, averaging a high-temperature of 17°C (62.6°F).Rainfall
The wettest months are March and September, with an average 41mm (1.61") of rainfall.Sea temperature
In Mossel Bay, in September, the average water temperature is 16.5°C (61.7°F).Note: The majority of people find swimming in 16.5°C (61.7°F) unenjoyable. As the water temperature decreases from 21°C (69.8°F) to 15°C (59°F), breathing becomes more challenging to control.
Daylight
In September, the average length of the day is 11h and 53min.On the first day of September in Mossel Bay, sunrise is at 06:49 and sunset at 18:13. On the last day of the month, sunrise is at 06:09 and sunset at 18:33 SAST.
Frequently asked questions
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Average temperature in September
Mossel Bay, South Africa
- Average high temperature in September: 17°C
The warmest months (with the highest average high temperature) are January and February (23°C).
The months with the lowest average high temperature are August and September (17°C).
- Average low temperature in September: 13°C
The months with the highest average low temperature are January and February (19°C).
The coldest month (with the lowest average low temperature) is August (12°C).
Average rainfall in September
Mossel Bay, South Africa
- Average rainfall in September: 41mm
The wettest months (with the highest rainfall) are March and September (41mm).
The driest months (with the least rainfall) are January and December (30mm).
Average sea temperature in September
Mossel Bay, South Africa
- Average sea temperature in September: 16.5°C
The best month for swimming (with the highest average sea temperature) is January (20.7°C).
The coldest month (with the lowest average sea temperature) is August (16°C).
Average daylight in September
Mossel Bay, South Africa
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
Mossel Bay, South Africa
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