S
M
T
W
T
F
S
30
52°
37°
1
52°
41°
2
54°
41°
3
48°
37°
4
52°
37°
5
55°
36°
6
55°
52°
7
59°
54°
8
59°
54°
9
59°
52°
10
57°
48°
11
52°
43°
12
54°
50°
13
52°
46°
14
55°
46°
15
55°
46°
16
52°
46°
17
48°
37°
18
57°
48°
19
54°
43°
20
50°
37°
21
52°
46°
22
50°
43°
23
48°
36°
24
45°
32°
25
37°
30°
26
37°
28°
27
41°
28°
28
41°
27°
29
41°
30°
30
45°
28°
31
45°
27°
1
39°
21°
2
48°
36°
3
41°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Rennes
Rennes's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Rennes. See also: January | February | March.
