Measurements:
°C
°F
Rennes
42°F
SW 9 mph
Feels like: 36°F
Precip: 0%
World Resorts France Rennes Weather

7 Day Weather Forecast

04.20
mon
DAY
52°F
W 14 mph
precip
0%
NIGHT
46°F
SW 11 mph
precip
0%
04.21
tue
DAY
54°F
W 17 mph
precip
0%
NIGHT
50°F
W 18 mph
precip
0%
04.22
wed
DAY
56°F
W 21 mph
precip
0%
NIGHT
52°F
W 19 mph
precip
0%
04.23
thu
DAY
58°F
W 18 mph
precip
0%
NIGHT
48°F
SW 9 mph
precip
0%
04.24
fri
DAY
60°F
W 14 mph
precip
0%
NIGHT
42°F
SW 9 mph
precip
0%
04.25
sat
DAY
56°F
SW 13 mph
precip
0%
NIGHT
40°F
S 9 mph
precip
0%
04.26
sun
DAY
54°F
SW 14 mph
precip
0%
NIGHT
42°F
SW 11 mph
precip
0%

Rennes Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Rennes was 11.3°F. The maximum and minimum values were 10.4°F and 12.0°F respectively.

Rennes on the Weather Map

Best Time to Visit Rennes
The most sunny months:
August 12 days
July 12 days
September 11 days
The most warm months:
August 76.8 °F
July 76.5 °F
June 71.9 °F
Warmest sea temperature:
August 67.6 °F
September 66.5 °F
July 65.7 °F
The most cold months:
January 45.8 °F
February 48.0 °F
December 48.5 °F
The most rainy months:
June 5 days
April 4 days
November 3 days
The most windy months:
February 11 mph
December 11 mph
January 10 mph