December weather forecastMillbrook, United Kingdom
December
Weather in December
Sea temperature
In Millbrook, United Kingdom, the average seawater temperature in December is 11.9°C (53.4°F).Note: Dipping into 11.9°C (53.4°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.
Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year.On the first day of December in Millbrook, United Kingdom, sunrise is at 7:55 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 8:16 am and sunset at 4:23 pm GMT.
Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Millbrook, the average seawater temperature in December is 11.9°C (53.4°F). Swimming in 11.9°C (53.4°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.
With an average of 8h and 6min of daylight, December has the shortest days of the year in Millbrook.
In December, the average day length in Millbrook, United Kingdom, is 8h and 7min.
In December, on the first day of the month, sunrise is at 7:55 am and sunset at 4:16 pm. On the last day of the month, in Millbrook, sunrise is at 8:16 am and sunset at 4:23 pm GMT.
Average sea temperature in December
Millbrook, United Kingdom
- Average sea temperature in December: 11.9°C
The best month for swimming (with the highest average sea temperature) is August (16.9°C).
The coldest month (with the lowest average sea temperature) is March (9.5°C).
Average daylight in December
Millbrook, United Kingdom
- Average daylight in December: 8h and 6min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).





