Weather in December
Sea temperature
In Riec-sur-Belon, France, in December, the average water temperature is 12.6°C (54.7°F).Note: In 12.6°C (54.7°F), cold shock and rapid breathing can occur when swimming at temperatures below 10°C (50°F).
Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year in Riec-sur-Belon.On the first day of the month, sunrise is at 08:43 and sunset at 17:24. On the last day of December, sunrise is at 09:03 and sunset at 17:32 CET.
Frequently asked questions
How cold is the water in December in Riec-sur-Belon?
In December, the average sea temperature is 12.6°C (54.7°F). Swimming in 12.6°C (54.7°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 Riec-sur-Belon?
December has the shortest days of the year, with an average of 8h and 30min of daylight.
What is the average length of the day in December in Riec-sur-Belon?
The average day length in December is 8h and 29min.
What time are sunrise and sunset in December in Riec-sur-Belon?
In December, on the first day of the month, sunrise is at 08:43 and sunset at 17:24. On the last day of the month, sunrise is at 09:03 and sunset at 17:32 CET.
Average sea temperature in December
Riec-sur-Belon, France
- Average sea temperature in December: 12.6°C
The best month for swimming (with the highest average sea temperature) is August (17.4°C).
The coldest months (with the lowest average sea temperature) are February and March (10.1°C).
Average daylight in December
Riec-sur-Belon, France
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
Riec-sur-Belon, France
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location
