Current sea water temperature:
+49.6°F
| Minimum sea water temperature in February: | 49.6°F |
| Maximum sea water temperature in February: | 44.4°F |
| Average sea water temperature in February: | 47.1°F |
| more information | |
14 days
forecast
forecast
| Rennes |
monthly
weather
weather
| Rennes |
Sea water temperature for the last 10 days:
| February 24 | 49.6°F | February 19 | 48.2°F |
| February 23 | 48.7°F | February 18 | 48.9°F |
| February 22 | 49.3°F | February 17 | 48.0°F |
| February 21 | 48.6°F | February 16 | 47.7°F |
| February 20 | 48.6°F | February 15 | 47.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Rennes?
Based on the data about daily sea water temperature for the last three years the warmest sea in Rennes was noticed in August, September and July.
Monthly Sea Temperatures in Rennes, °F
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.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 64.9°F. The highest and lowest sea temperatures during the month were 66.9°F and 62.8°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 65.6°F. The highest and lowest sea temperatures during the month were 66.7°F and 63.7°F.
current
weather
weather
| Rennes |
weather in
March
March
| Rennes |
Best time for vacation in Rennes
Rennes on a weather map
Places in France:
Name
°F
24 Hours Forecast
Rennes
Local time: 08:15
February 25, wednesday
0900
46°F
NW
7 mph
7 mph
1200
59°F
N
11 mph
11 mph
1500
63°F
N
12 mph
12 mph
1800
57°F
NE
9 mph
9 mph
2100
50°F
NE
7 mph
7 mph
February 26, thursday
0000
46°F
NE
7 mph
7 mph
0300
46°F
NE
8 mph
8 mph
0600
45°F
N
8 mph
8 mph
