Boulogne-sur-Mer in december: average Weather, Temperature and Climate
Weather in Boulogne-sur-Mer in december 2026
The weather in Boulogne-sur-Mer in december comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout december
bad weather 32.4cm
Weather at 6am
47°F
Cloudy
31% of time
21%
20%
18%
Weather at 12pm
47°F
Cloudy
27% of time
22%
22%
20%
Weather at 6pm
47°F
Cloudy
28% of time
21%
20%
20%
Weather at 3am
47°F
24%
22%
22%
21%
Evolution of daily average temperature and precipitation in Boulogne-sur-Mer in december
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Boulogne-sur-Mer in december.
The climate of Boulogne-sur-Mer in december is bad
The climate in december in Boulogne-sur-Mer is wet (with 4.4in of precipitation over 7 days). It should be noted a worsening from the previous month since in november there is an average of 4.5in of rainfall over 8 days.
The climate is quite more than very fresh in that area this month. Plan a sweater! Temperatures are up to 49°F. The seasonal minimum is 45°F. Thus, the mean temperature average in december in Boulogne-sur-Mer is 47°F. Note that these seasonal averages are in contrast with those observed in Boulogne-sur-Mer in the month of december with a maximum record of 58°F in 2015 and a minimum record of 23°F in 2010.
In december in Boulogne-sur-Mer, the days on average last 07:59. The sun rises at 08:49 and sets at 16:48.
With a bad climate, the month of december is not the best time to go in this locality in North of France.
Seasonal average climate and temperature of Boulogne-sur-Mer in december
Check below seasonal norms These datas are compiled from the weather statements earlier years of december.
| December | |||||
| Outside temperature | |||||
| Average temperature | 47°F | ||||
| Highest temperature | 49°F | ||||
| Lowest temperature | 45°F | ||||
| Highest record temperature | 58°F (2015) | ||||
| Lowest record temperature | 23°F (2010) | ||||
| Number of days at -32°F | 1 day(s) (3%) | ||||
| Sea temperature | |||||
| Average sea temperature | 53°F | ||||
| Lowest sea temperature | 49°F | ||||
| Highest sea temperature | 57°F | ||||
| Wind | |||||
| Wind speed | 32km/h | ||||
| Wind temperature | 38°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.4in | ||||
| Number of days with rainfall | 7 day(s) (24%) | ||||
| Record daily rainfall | 1.4in (2012) | ||||
| Snowfall | 32.4cm | ||||
| Other climate data | |||||
| Humidity | 86% | ||||
| Visibility | 9.12km | ||||
| Cloud cover | 59% | ||||
| UV index | 3 | ||||
| Daily sunshine hours | 6 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 08:49 | ||||
| Time of sunset | 16:48 | ||||
| Length of day | 07:59 | ||||
| Our opinion about the weather in december | |||||
| Our opinion at whereandwhen.net | bad | ||||
How was the weather last december?
Here is the day by day recorded weather in Boulogne-sur-Mer in december 2025:
45°F to 49°F
49°F to 50°F
47°F to 49°F
45°F to 47°F
45°F to 47°F
47°F to 52°F
50°F to 56°F
52°F to 56°F
52°F to 56°F
52°F to 54°F
47°F to 50°F
50°F to 52°F
50°F to 52°F
43°F to 49°F
47°F to 50°F
50°F to 54°F
49°F to 50°F
49°F to 54°F
49°F to 52°F
43°F to 47°F
47°F to 50°F
45°F to 50°F
40°F to 47°F
34°F to 38°F
31°F to 36°F
31°F to 38°F
36°F to 45°F
40°F to 45°F
36°F to 45°F
43°F to 45°F
41°F to 43°F
Map: other cities in the North of France in december
Cities near Boulogne-sur-Mer:
| Le Portel in december | bad weather |
| Wimereux in december | bad weather |
| Equihen-Plage in december | bad weather |
| Ambleteuse in december | bad weather |
| Hardelot-Plage in december | bad weather |
| Audresselles in december | bad weather |
| Audinghen in december | bad weather |
| Dannes in december | very bad weather |
| Tardinghen in december | bad weather |
| Sainte-Cécile-Plage (Camiers) in december | very bad weather |
| Desvres in december | bad weather |
| Wissant in december | bad weather |
Click over cities on the map for information about the weather in december.
Boulogne-sur-Mer
perfect weather
good
tolerable
bad
very bad
Weather data for Boulogne-sur-Mer in december:
Weather data for Boulogne-sur-Mer for december are derived from an average of the weather forecast since 2009 in Boulogne-sur-Mer. There is a margin of error and these forecasts are to be considered as general information only. The weather in Boulogne-sur-Mer can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Boulogne-sur-Mer.