Gujan-Mestras Weather in December
What's the weather like in Gujan-Mestras (Aquitaine) in December 2025?
The climate in Gujan-Mestras during December can be summarized as cool and damp.
December is in the winter in Gujan-Mestras and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 11°C (51°F), whilst at night 4°C (39°F) is normal.
| Daytime temperature | 10.8°C 51.4°F |
|---|---|
| Nightly temperature | 4°C 39.2°F |
| Average temperature | 7.4°C 45.3°F |
| Daily sunshine | 3.1 hrs |
| Avg rainfall | 120 mm 4.7 ins |
| Rainy days | 17 days |
| Sea temperature | 13.8°C 56.8°F |
| Humidity | 84% |
| Windspeed | 12.6kph 8 mph |
On average December is the wettest month of the year in Gujan-Mestras with around 120mm 4.7 inches of rain making it a damp 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 3.1 hours of sunshine per day.
December temperatures in Gujan-Mestras
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 Gujan-Mestras in December 2025.
Other monthly averages
Best places to visit in December
Gujan-Mestras weather stats
| Hottest month: | July | 24.8°C 76.6°F |
|---|---|---|
| Driest month: | July | 51mm 2ins |
| Sunniest month: | July | 9.1hrs |
| Coldest month: | January | 10.2°C 50.4°F |
| Wettest month: | December | 120mm 4.7ins |
© Google
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