Weather in December
Sea temperature
In Runcorn, United Kingdom, the average seawater temperature in December is 9.7°C (49.5°F).Note: Engaging in a swim in 9.7°C (49.5°F) can threaten life. Brief exposure to 13°C (55.4°F) waters is uneasy, and submersion below 10°C (50°F) can lead to cold shock and disrupted breathing patterns, varying by individual.
Daylight
The month with the shortest days in Runcorn is December, with an average of 7h and 36min of daylight.On the first day of the month, sunrise is at 8:03 am and sunset at 3:56 pm. On the last day of December, in Runcorn, United Kingdom, sunrise is at 8:26 am and sunset at 4:02 pm GMT.
Frequently asked questions
What is the sea water temperature in December in Runcorn?
In Runcorn, in December, the average water temperature is 9.7°C (49.5°F). Swimming in 9.7°C (49.5°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.
What is the month with the shortest days in Runcorn?
With an average of 7h and 36min of daylight, December has the shortest days of the year in Runcorn.
How many hours of daylight does Runcorn have in December?
The average day length in December in Runcorn, United Kingdom, is 7h and 37min.
What time are sunrise and sunset in December in Runcorn?
On the first day of December, sunrise is at 8:03 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 8:26 am and sunset at 4:02 pm GMT.
Average sea temperature in December
Runcorn, United Kingdom
- Average sea temperature in December: 9.7°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 December
Runcorn, United Kingdom
- Average daylight in December: 7h 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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