06.08
thu
thu
Day
72°F
S 9 mph
Precip.
1%
1%
Night
52°F
S 9 mph
Precip.
12%
12%
07.08
fri
fri
Day
75°F
SW 4 mph
Precip.
1%
1%
Night
57°F
S 9 mph
Precip.
5%
5%
08.08
sat
sat
Day
84°F
W 7 mph
Precip.
1%
1%
Night
66°F
SW 7 mph
Precip.
1%
1%
09.08
sun
sun
Day
90°F
N 6 mph
Precip.
1%
1%
Night
63°F
S 6 mph
Precip.
6%
6%
10.08
mon
mon
Day
73°F
W 9 mph
Precip.
37%
37%
Night
66°F
E 2 mph
Precip.
9%
9%
11.08
tue
tue
Day
84°F
N 3 mph
Precip.
1%
1%
Night
68°F
S 8 mph
Precip.
5%
5%
12.08
wed
wed
Day
90°F
E 3 mph
Precip.
1%
1%
Night
66°F
S 11 mph
Precip.
5%
5%
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 67.3°F. The highest and lowest sea temperatures during the month were 68.2°F and 65.7°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: 00:26
August 06, thursday
0300
54°F
SE
6 mph
6 mph
0600
55°F
SE
5 mph
5 mph
0900
63°F
S
7 mph
7 mph
1200
72°F
S
9 mph
9 mph
1500
77°F
S
13 mph
13 mph
1800
75°F
S
15 mph
15 mph
2100
64°F
S
12 mph
12 mph
August 07, friday
0000
52°F
S
9 mph
9 mph
