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Rennes, France Weather Averages

July is the hottest month in Rennes with an average temperature of 19°C (66°F) and the coldest is January at 5°C (41°F). The wettest month is December with an average of 80mm of rain..

Average Temperature Rennes

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Rennes

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Rainfall Rennes

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Rennes : Next 24-Hour Weather

Today - 24th August 2026

Sunrise 07:13

Sunrise

Sunset 21:04

Sunset
6:00
Overcast
18°C (64°F)
7:00
Patchy rain possible
17°C (63°F)
8:00
Patchy rain possible
17°C (61°F)
9:00
Overcast
17°C (62°F)
10:00
Patchy rain possible
19°C (66°F)
11:00
Cloudy
21°C (69°F)
12:00
Patchy rain possible
25°C (75°F)
13:00
Thundery outbreaks possible
26°C (78°F)
14:00
Thundery outbreaks possible
29°C (83°F)
15:00
Light rain shower
29°C (84°F)
16:00
Thundery outbreaks possible
30°C (85°F)
17:00
Overcast
31°C (87°F)
18:00
Heavy rain
20°C (66°F)
19:00
Heavy rain
18°C (64°F)
20:00
Light rain shower
19°C (65°F)
21:00
Overcast
20°C (67°F)
22:00
Overcast
17°C (62°F)
23:00
Patchy rain possible
17°C (62°F)

Tomorrow - 25th August 2026

Sunrise 07:13

Sunrise

Sunset 21:04

Sunset
0:00
Overcast
18°C (63°F)
1:00
Patchy rain possible
18°C (63°F)
2:00
Partly cloudy
17°C (63°F)
3:00
Mist
17°C (61°F)
4:00
Fog
16°C (61°F)
5:00
Fog
16°C (60°F)