Rennes Weather: December
 |
Average Day Temperature: | 48.5°F |
|
Average Night Temperature: | 42.5°F |
|
Sea Water Temperature: | 51.5°F |
|
Number of Sunny Days: | 6 days |
| Sunshine Hours: | 8.4 - 8.7 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.9 in | |
| detailed information | ||
forecast
| Rennes |
Temperature
| Rennes |
Air Temperature in December, °F
The highest day temperature in December 2025 was 59°F. The lowest night temperature was 26°F. The average values for day and night temperatures during December were 48.4°F и 41.6°F respectivly.
Rennes Water Sea Temperature in December, °F
The average sea surface temperature in December 2025 for Rennes was 51.5°F. The maximum and minimum values were 48.6°F and 54.0°F respectively.
Most of the days in December are gloomy but you can also expect sunny days.
Precipitation Totals in December, in
Precipitation total in December for Rennes is 1.9 in. It makes december one of the most rainy months of the year.
The average wind speed in December is 10.8 mph. This value is relatively stable throughout the year.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Rennes in December is 3.6 hours.
Rennes on the Weather Map
| Antibes |  |
+54 |
| Biarritz |  |
+54 |
| Bordeaux | |
+62 |
| Cannes | |
+54 |
| Chamonix |  |
+36 |
| Corsica |  |
+60 |
| Etretat | |
+50 |
| Marseilles | |
+60 |
| Menton | |
+54 |
| Montpellier | |
+58 |
| Nice | |
+52 |
| Paris | |
+56 |
| Perpignan | |
+60 |
| Saint-Tropez | |
+56 |
| Toulouse | |
+54 |
| 1500 |  |
58°F | NE 11 mph |
| 1800 |  |
52°F | NE 12 mph |
| 2100 |  |
46°F | NE 9 mph |
| 0000 | |
46°F | NE 12 mph |
| 0300 | |
48°F | NE 16 mph |
| 0600 | |
48°F | NE 17 mph |
| 0900 | |
50°F | SE 14 mph |
| 1200 | |
52°F | SE 16 mph |