28.12
sun
sun
Day
41°F
SW 12 mph
Precip.
0%
0%
Night
30°F
SW 7 mph
Precip.
0%
0%
29.12
mon
mon
Day
39°F
SW 5 mph
Precip.
0%
0%
Night
28°F
SW 7 mph
Precip.
0%
0%
30.12
tue
tue
Day
41°F
SW 14 mph
Precip.
0%
0%
Night
30°F
SW 8 mph
Precip.
0%
0%
31.12
wed
wed
Day
41°F
SW 9 mph
Precip.
0%
0%
Night
32°F
SW 5 mph
Precip.
0%
0%
01.01
thu
thu
Day
34°F
NW 6 mph
Precip.
0%
0%
Night
43°F
SE 9 mph
Precip.
100%
100%
02.01
fri
fri
Day
41°F
S 8 mph
Precip.
0%
0%
Night
32°F
NE 3 mph
Precip.
0%
0%
03.01
sat
sat
Day
39°F
E 6 mph
Precip.
0%
0%
Night
39°F
NE 6 mph
Precip.
0%
0%
04.01
sun
sun
Day
45°F
E 6 mph
Precip.
100%
100%
Night
39°F
SW 9 mph
Precip.
48%
48%
05.01
mon
mon
Day
39°F
SW 12 mph
Precip.
59%
59%
Night
30°F
SW 8 mph
Precip.
0%
0%
06.01
tue
tue
Day
37°F
SW 10 mph
Precip.
0%
0%
Night
30°F
W 6 mph
Precip.
0%
0%
07.01
wed
wed
Day
37°F
NW 4 mph
Precip.
0%
0%
Night
32°F
NE 5 mph
Precip.
0%
0%
08.01
thu
thu
Day
43°F
NE 9 mph
Precip.
100%
100%
Night
41°F
NE 9 mph
Precip.
100%
100%
09.01
fri
fri
Day
39°F
SE 12 mph
Precip.
100%
100%
Night
37°F
S 14 mph
Precip.
20%
20%
10.01
sat
sat
Day
37°F
NW 21 mph
Precip.
100%
100%
Night
37°F
SW 16 mph
Precip.
51%
51%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 51.7°F. The highest and lowest sea temperatures during the month were 53.6°F and 49.5°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: 22:11
December 29, monday
0000
30°F
SW
7 mph
7 mph
0300
30°F
SW
6 mph
6 mph
0600
30°F
SW
6 mph
6 mph
0900
28°F
SW
6 mph
6 mph
1200
39°F
SW
5 mph
5 mph
1500
43°F
SW
5 mph
5 mph
1800
34°F
SW
7 mph
7 mph
2100
30°F
SW
7 mph
7 mph
