Cayeux-sur-Mer Weather in December
What's the weather like in Cayeux-sur-Mer (Picardie) in December 2025?
The climate in Cayeux-sur-Mer during December can be summarized as cool and reasonably dry.
December is in the winter in Cayeux-sur-Mer and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 7°C (45°F), whilst at night 3°C (37°F) is normal.
| Daytime temperature | 7.3°C 45.1°F |
|---|---|
| Nightly temperature | 2.8°C 37°F |
| Average temperature | 5°C 41°F |
| Daily sunshine | 2 hrs |
| Avg rainfall | 68 mm 2.7 ins |
| Rainy days | 17 days |
| Sea temperature | 10.5°C 50.9°F |
| Humidity | 90% |
| Windspeed | 17.5kph 11 mph |
On average December is the 3rd wettest month of the year in Cayeux-sur-Mer with around 68mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 2 hours of sunshine per day.
December temperatures in Cayeux-sur-Mer
December rainfall
December hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Cayeux-sur-Mer in December 2025.
Other monthly averages
Best places to visit in December
Cayeux-sur-Mer weather stats
| Hottest month: | August | 20.8°C 69.4°F |
|---|---|---|
| Driest month: | April | 47mm 1.9ins |
| Sunniest month: | August | 7.7hrs |
| Coldest month: | January | 6.2°C 43.2°F |
| Wettest month: | November | 85mm 3.3ins |
© Google
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