Weather in December
Sea temperature
In Saint David's, United Kingdom, the average seawater temperature in December is 11.4°C (52.5°F).Note: You can swim in 11.4°C (52.5°F) below 10°C (50°F) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 13°C (55.4°F) without it is tough.
Daylight
The month with the shortest days in Saint David's is December, with an average of 7h and 54min of daylight.On the first day of December in Saint David's, sunrise is at 8:06 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 8:28 am and sunset at 4:20 pm GMT.
Frequently asked questions
What is the sea water temperature in December in Saint David's?
In December, the average sea temperature is 11.4°C (52.5°F). Swimming in 11.4°C (52.5°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 Saint David's?
December has the shortest days of the year in Saint David's, with an average of 7h and 54min of daylight.
What is the average length of the day in December in Saint David's?
The average day length in December in Saint David's is 7h and 52min.
When are sunrise and sunset in December in Saint David's?
On the first day of December in Saint David's, sunrise is at 8:06 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 8:28 am and sunset at 4:20 pm GMT.
Average sea temperature in December
Saint David's, United Kingdom
- Average sea temperature in December: 11.4°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 December
Saint David's, United Kingdom
- Average daylight in December: 7h and 5min
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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