Rennes offers a solid outdoor season. May through September are perfect for all activities. Dinner outside works 5/12 months, while walking is comfortable 12/12 months — impressive.
RennesFrance
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Annual
5/12
Dinner Outside
41
0Jan: 0% viability
0
4Feb: 4% viability
4
15Mar: 15% viability
15
51Apr: 51% viability
51
65May: 65% viability
65
76Jun: 76% viability
76
81Jul: 81% viability
81
84Aug: 84% viability
84
68Sep: 68% viability
68
43Oct: 43% viability
43
4Nov: 4% viability
4
1Dec: 1% viability
1
5/12
Dinner Outside
0Jan: 0% viability
0
4Feb: 4% viability
4
15Mar: 15% viability
15
51Apr: 51% viability
51
65May: 65% viability
65
76Jun: 76% viability
76
81Jul: 81% viability
81
84Aug: 84% viability
84
68Sep: 68% viability
68
43Oct: 43% viability
43
4Nov: 4% viability
4
1Dec: 1% viability
1
41%
Cold
8/12
Lunch Outside
63
33Jan: 33% viability
33
44Feb: 44% viability
44
60Mar: 60% viability
60
76Apr: 76% viability
76
71May: 71% viability
71
76Jun: 76% viability
76
79Jul: 79% viability
79
76Aug: 76% viability
76
76Sep: 76% viability
76
74Oct: 74% viability
74
66Nov: 66% viability
66
30Dec: 30% viability
30
8/12
Lunch Outside
33Jan: 33% viability
33
44Feb: 44% viability
44
60Mar: 60% viability
60
76Apr: 76% viability
76
71May: 71% viability
71
76Jun: 76% viability
76
79Jul: 79% viability
79
76Aug: 76% viability
76
76Sep: 76% viability
76
74Oct: 74% viability
74
66Nov: 66% viability
66
30Dec: 30% viability
30
63%
Cold
12/12
Walking
93
94Jan: 94% viability
94
89Feb: 89% viability
89
93Mar: 93% viability
93
97Apr: 97% viability
97
96May: 96% viability
96
93Jun: 93% viability
93
92Jul: 92% viability
92
87Aug: 87% viability
87
92Sep: 92% viability
92
95Oct: 95% viability
95
94Nov: 94% viability
94
94Dec: 94% viability
94
12/12
Walking
94Jan: 94% viability
94
89Feb: 89% viability
89
93Mar: 93% viability
93
97Apr: 97% viability
97
96May: 96% viability
96
93Jun: 93% viability
93
92Jul: 92% viability
92
87Aug: 87% viability
87
92Sep: 92% viability
92
95Oct: 95% viability
95
94Nov: 94% viability
94
94Dec: 94% viability
94
93%
12/12
Running
93
94Jan: 94% viability
94
89Feb: 89% viability
89
93Mar: 93% viability
93
97Apr: 97% viability
97
96May: 96% viability
96
93Jun: 93% viability
93
92Jul: 92% viability
92
87Aug: 87% viability
87
92Sep: 92% viability
92
95Oct: 95% viability
95
94Nov: 94% viability
94
94Dec: 94% viability
94
12/12
Running
94Jan: 94% viability
94
89Feb: 89% viability
89
93Mar: 93% viability
93
97Apr: 97% viability
97
96May: 96% viability
96
93Jun: 93% viability
93
92Jul: 92% viability
92
87Aug: 87% viability
87
92Sep: 92% viability
92
95Oct: 95% viability
95
94Nov: 94% viability
94
94Dec: 94% viability
94
93%
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ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025