Weather in December
Sea temperature
In La Seyne-sur-Mer, France, in December, the average water temperature is 15°C (59°F).Note: For most, swimming in 15°C (59°F) is not a pleasant activity. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 07:48 and sunset at 17:02. On the last day of December, in La Seyne-sur-Mer, France, sunrise is at 08:07 and sunset at 17:11 CET.
Frequently asked questions
What is the sea temperature in December in La Seyne-sur-Mer?
In La Seyne-sur-Mer, France, in December, the average water temperature is 15°C (59°F). For most, swimming in 15°C (59°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
What is the month with the shortest days in La Seyne-sur-Mer?
With an average of 9h and 6min of daylight, December has the shortest days of the year in La Seyne-sur-Mer.
How many hours of daylight does La Seyne-sur-Mer have in December?
In December, the average day length is 9h and 4min.
When are sunrise and sunset in December in La Seyne-sur-Mer?
In December, on the first day of the month, sunrise is at 07:48 and sunset at 17:02. On the last day of the month, in La Seyne-sur-Mer, sunrise is at 08:07 and sunset at 17:11 CET.
Average sea temperature in December
La Seyne-sur-Mer, France
- Average sea temperature in December: 15°C
The best month for swimming (with the highest average sea temperature) is August (22.3°C).
The coldest month (with the lowest average sea temperature) is February (13°C).
Average daylight in December
La Seyne-sur-Mer, France
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
La Seyne-sur-Mer, France
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