The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
⋮
Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Rennes, G
Content continues below
September
Average Temperature
High
21°
Feels 21
Low
10°
Feels 9
Average Precipitation
10 Days
Rain amount
59mm
Snow amount
0cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
27°
4
29°
5
25°
6
29°
7
28°
8
19°
9
19°
10
18°
11
19°
12
19°
13
19°
14
21°
15
19°
16
19°
17
17°
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Thursday, September 3, 2026
Day
27°
Feels 27
Wind
17 km/h S
Gust
25 km/h
Humidity
44%
P.O.P
20%
Night
16°
Feels 16
Wind
16 km/h W
Gust
24 km/h
Humidity
93%
P.O.P
20%
Historical Averages
Sep 3
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.