Weather in September
Sea temperature
In Saint Agnes, United Kingdom, in September, the average water temperature is 16.3°C (61.3°F).Note: Swimming is not a pleasant activity for most when the water temperature is 16.3°C (61.3°F). As the water temperature drops from 21°C (69.8°F) to 15°C (59°F), breathing becomes more difficult to control.
Daylight
In Saint Agnes, the average length of the day in September is 12h and 37min.On the first day of September in Saint Agnes, sunrise is at 6:36 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:00 pm BST.
Frequently asked questions
What is the sea temperature in September in Saint Agnes?
In Saint Agnes, United Kingdom, in September, the average water temperature is 16.3°C (61.3°F). For swimming, a surface water temperature of 16.3°C (61.3°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).
How many hours of daylight does Saint Agnes have in September?
In Saint Agnes, the average day length in September is 12h and 37min.
When is the sunrise / sunset in September in Saint Agnes?
In September, on the first day of the month, sunrise is at 6:36 am and sunset at 8:05 pm. On the last day of the month, in Saint Agnes, United Kingdom, sunrise is at 7:20 am and sunset at 7:00 pm BST.
Average sea temperature in September
Saint Agnes, United Kingdom
- Average sea temperature in September: 16.3°C
The best month for swimming (with the highest average sea temperature) is August (17.1°C).
The coldest month (with the lowest average sea temperature) is March (9.7°C).
Average daylight in September
Saint Agnes, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
Saint Agnes, United Kingdom
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