Climate averages 1991–2020
Brest, France weather
in December.
A cool, wet month: the 10th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Brest, France: daytime highs average 10.4°C and nights cool to about 7.4°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 105 mm of rain on roughly 15 days, which makes December a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 8 h 24 min on an average December day.
The nearest other city in this atlas is Saint Helier (196 km away). In December its highs average 10.0°C, about as warm as Brest, France, with 138 mm of rain.
Among the 57 cities listed in France, Brest, France ranks 14th of 57 for the warmest December highs and 53rd of 57 for the driest December (rainfall, lowest first). The mean December high of those 57 cities is 8.5°C; Brest, France is 1.9°C warmer than that mean.
From December to January, average highs fall by 0.7°C to 9.7°C, and monthly rainfall falls from 105 mm to 99 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Brest, France climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.7°C6.7°C | 6.7°C | 99 | 15.3 | 8.89 h |
| February | 9.6°C6.2°C | 6.2°C | 80 | 13.4 | 10.210 h |
| March | 10.9°C7.1°C | 7.1°C | 64 | 12.6 | 11.912 h |
| April | 12.5°C8.2°C | 8.2°C | 66 | 11.9 | 13.614 h |
| May | 15.0°C10.6°C | 10.6°C | 59 | 10.5 | 15.215 h |
| June | 17.3°C12.9°C | 12.9°C | 47 | 9.7 | 16.016 h |
| July | 18.9°C14.6°C | 14.6°C | 45 | 10.1 | 15.716 h |
| August | 19.1°C14.9°C | 14.9°C | 53 | 10.0 | 14.314 h |
| September | 17.8°C13.6°C | 13.6°C | 52 | 9.6 | 12.613 h |
| October | 15.2°C11.8°C | 11.8°C | 92 | 14.1 | 10.911 h |
| November | 12.3°C9.5°C | 9.5°C | 96 | 14.9 | 9.39 h |
| December, selected | 10.4°C7.4°C | 7.4°C | 105 | 15.3 | 8.48 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Saint Helier in DecemberJersey · 196 kmHigh 10.0°C · Low 7.7°C · 138 mm rain
- Rennes in DecemberFrance · 210 kmHigh 8.8°C · Low 3.7°C · 71 mm rain
- Plymouth in DecemberUnited Kingdom · 222 kmHigh 9.3°C · Low 5.6°C · 109 mm rain
- Nantes in DecemberFrance · 255 kmHigh 9.3°C · Low 4.3°C · 79 mm rain
- Exeter in DecemberUnited Kingdom · 269 kmHigh 8.5°C · Low 4.1°C · 73 mm rain
- Angers in DecemberFrance · 310 kmHigh 8.7°C · Low 3.6°C · 70 mm rain
- Caen in DecemberFrance · 315 kmHigh 8.5°C · Low 4.0°C · 74 mm rain
- Poole in DecemberUnited Kingdom · 315 kmHigh 8.9°C · Low 5.4°C · 78 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Brest) is explained once on the Brest, France year overview and on the Sources, method and limits page.