Current sea water temperature:
+61.0°F
| Minimum sea water temperature in October: | 65.3°F |
| Maximum sea water temperature in October: | 57.4°F |
| Average sea water temperature in October: | 61.2°F |
| more information | |
14 days
forecast
forecast
| Rennes |
monthly
weather
weather
| Rennes |
Sea water temperature for the last 10 days:
| October 25 | 61.0°F | October 20 | 61.9°F |
| October 24 | 60.8°F | October 19 | 61.9°F |
| October 23 | 61.3°F | October 18 | 62.4°F |
| October 22 | 61.5°F | October 17 | 63.0°F |
| October 21 | 62.1°F | October 16 | 63.1°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 68.8°F. The highest and lowest sea temperatures during the month were 70.2°F and 67.3°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 67.1°F. The highest and lowest sea temperatures during the month were 68.5°F and 64.9°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 67.2°F. The highest and lowest sea temperatures during the month were 68.9°F and 64.9°F.
current
weather
weather
| Rennes |
weather in
October
October
| Rennes |
Best time for vacation in Rennes
Rennes on a weather map
Places in France:
Name
°F
24 Hours Forecast
Rennes
Local time: 08:47
October 25, sunday
0900
52°F
E
14 mph
14 mph
1200
57°F
SE
18 mph
18 mph
1500
59°F
SE
16 mph
16 mph
1800
52°F
SE
6 mph
6 mph
2100
48°F
E
5 mph
5 mph
October 26, monday
0000
46°F
NE
4 mph
4 mph
0300
45°F
N
7 mph
7 mph
0600
48°F
N
11 mph
11 mph
