27.04
mon
mon
Day
64°F
SW 6 mph
Precip.
0%
0%
Night
46°F
S 8 mph
Precip.
0%
0%
28.04
tue
tue
Day
59°F
SW 13 mph
Precip.
0%
0%
Night
48°F
S 12 mph
Precip.
100%
100%
29.04
wed
wed
Day
57°F
W 9 mph
Precip.
100%
100%
Night
59°F
W 12 mph
Precip.
0%
0%
30.04
thu
thu
Day
64°F
NW 9 mph
Precip.
0%
0%
Night
57°F
W 5 mph
Precip.
0%
0%
01.05
fri
fri
Day
66°F
S 6 mph
Precip.
0%
0%
Night
55°F
S 7 mph
Precip.
55%
55%
02.05
sat
sat
Day
61°F
S 4 mph
Precip.
22%
22%
Night
48°F
S 7 mph
Precip.
0%
0%
03.05
sun
sun
Day
55°F
S 5 mph
Precip.
80%
80%
Night
50°F
S 7 mph
Precip.
0%
0%
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 52.8°F. The highest and lowest sea temperatures during the month were 54.7°F and 50.7°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 57.0°F. The highest and lowest sea temperatures during the month were 58.8°F and 55.0°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: 02:53
April 27, monday
0300
52°F
W
5 mph
5 mph
0600
52°F
W
4 mph
4 mph
0900
55°F
SW
5 mph
5 mph
1200
64°F
SW
6 mph
6 mph
1500
68°F
SW
7 mph
7 mph
1800
68°F
SW
8 mph
8 mph
2100
57°F
SW
9 mph
9 mph
April 28, tuesday
0000
46°F
S
8 mph
8 mph
