Measurements:
°C
°F
CURRENT WEATHER
16:17
Rennes
58°F
W 9 mph
Feels like: 56°F
Precip: 1%
World Resorts France Rennes Weather

7 Day Weather Forecast

10.19
mon
DAY
52°F
W 8 mph
precip
4%
NIGHT
46°F
S 4 mph
precip
25%
10.20
tue
DAY
56°F
E 10 mph
precip
3%
NIGHT
54°F
N 17 mph
precip
32%
10.21
wed
DAY
54°F
E 18 mph
precip
4%
NIGHT
54°F
NE 13 mph
precip
22%
10.22
thu
DAY
58°F
NE 12 mph
precip
46%
NIGHT
58°F
N 26 mph
precip
70%
10.23
fri
DAY
54°F
E 17 mph
precip
6%
NIGHT
48°F
E 12 mph
precip
14%
10.24
sat
DAY
54°F
NE 11 mph
precip
20%
NIGHT
58°F
NE 21 mph
precip
78%
10.25
sun
DAY
66°F
E 22 mph
precip
28%
NIGHT
58°F
E 6 mph
precip
28%

Rennes Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Rennes was 17.9°F. The maximum and minimum values were 16.6°F and 18.5°F respectively.

Rennes on the Weather Map

Best Time to Visit Rennes
The most sunny months:
July 13 days
August 12 days
April 10 days
The most warm months:
July 77.3 °F
August 77.2 °F
June 72.5 °F
Warmest sea temperature:
August 67.8 °F
September 66.6 °F
July 65.9 °F
The most cold months:
January 45.8 °F
February 48.0 °F
December 48.5 °F
The most rainy months:
June 5 days
November 3 days
April 3 days
The most windy months:
February 11 mph
December 11 mph
January 10 mph
more details