Weather in September
Sea temperature
In September, the average sea temperature in Saint David's, United Kingdom, is 15.8°C (60.4°F).Note: Most individuals do not find swimming at 15.8°C (60.4°F) to be enjoyable. As the water temperature declines below 21°C (69.8°F), maintaining control over one's breathing becomes harder.
Daylight
The average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 6:34 am and sunset at 8:07 pm. On the last day of September, in Saint David's, sunrise is at 7:21 am and sunset at 7:00 pm BST.
Frequently asked questions
What is the sea temperature in September in Saint David's?
In Saint David's, in September, the average water temperature is 15.8°C (60.4°F). For most, swimming in 15.8°C (60.4°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
How many hours of daylight does Saint David's have in September?
In Saint David's, United Kingdom, the average day length in September is 12h and 39min.
When are sunrise and sunset in September in Saint David's?
On the first day of September, sunrise is at 6:34 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:00 pm BST.
Average sea temperature in September
Saint David's, United Kingdom
- Average sea temperature in September: 15.8°C
The best month for swimming (with the highest average sea temperature) is August (16.2°C).
The coldest month (with the lowest average sea temperature) is March (8.7°C).
Average daylight in September
Saint David's, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
Saint David's, United Kingdom
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