30.12
tue
tue
Day
43°F
W 16 mph
Precip.
0%
0%
Night
30°F
SW 9 mph
Precip.
0%
0%
31.12
wed
wed
Day
37°F
W 10 mph
Precip.
0%
0%
Night
27°F
W 6 mph
Precip.
0%
0%
01.01
thu
thu
Day
34°F
W 2 mph
Precip.
0%
0%
Night
32°F
NE 4 mph
Precip.
0%
0%
02.01
fri
fri
Day
36°F
NW 5 mph
Precip.
0%
0%
Night
32°F
W 6 mph
Precip.
0%
0%
03.01
sat
sat
Day
37°F
S 13 mph
Precip.
0%
0%
Night
32°F
SW 21 mph
Precip.
100%
100%
04.01
sun
sun
Day
34°F
S 17 mph
Precip.
100%
100%
Night
30°F
S 11 mph
Precip.
0%
0%
05.01
mon
mon
Day
32°F
NW 12 mph
Precip.
0%
0%
Night
30°F
S 11 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 51.5°F. The highest and lowest sea temperatures during the month were 53.6°F and 48.9°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 48.0°F. The highest and lowest sea temperatures during the month were 49.1°F and 46.9°F.
Air temperature in Rennes, °F
Precipitation total in Rennes, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Rennes
Rennes on a weather map
Places in France:
Name
°F
24 Hours Forecast
Rennes
Local time: 23:49
December 31, wednesday
0000
30°F
SW
9 mph
9 mph
0300
30°F
SW
8 mph
8 mph
0600
28°F
SW
7 mph
7 mph
0900
27°F
SW
7 mph
7 mph
1200
37°F
W
10 mph
10 mph
1500
41°F
W
9 mph
9 mph
1800
32°F
SW
6 mph
6 mph
2100
28°F
W
6 mph
6 mph
