Weather in September
Sea temperature
In Runcorn, United Kingdom, in September, the average water temperature is 16.2°C (61.2°F).Note: Swimming is not a pleasant activity for most individuals in 16.2°C (61.2°F). Breathing becomes increasingly challenging to control as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In September, the average length of the day is 12h and 41min.On the first day of the month, sunrise is at 6:21 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:49 pm BST.
Frequently asked questions
What is the sea water temperature in September in Runcorn?
In September, the average sea temperature in Runcorn, United Kingdom, is 16.2°C (61.2°F). For swimming, a surface water temperature of 16.2°C (61.2°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 Runcorn have in September?
The average day length in September in Runcorn is 12h and 41min.
What time are sunrise and sunset in September in Runcorn?
On the first day of September in Runcorn, sunrise is at 6:21 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:49 pm BST.
Average sea temperature in September
Runcorn, United Kingdom
- Average sea temperature in September: 16.2°C
The best month for swimming (with the highest average sea temperature) is August (16.7°C).
The coldest months (with the lowest average sea temperature) are February and March (7.4°C).
Average daylight in September
Runcorn, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
Runcorn, United Kingdom
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