Measurements:
°C
°F
Rennes
48°F
S 13 mph
Feels like: 42°F
Precip: 88%
World Resorts France Rennes Weather

7 Day Weather Forecast

03.30
mon
DAY
52°F
SE 14 mph
precip
100%
NIGHT
46°F
SE 11 mph
precip
0%
03.31
tue
DAY
52°F
S 9 mph
precip
0%
NIGHT
44°F
SE 7 mph
precip
0%
04.01
wed
DAY
50°F
SE 11 mph
precip
77%
NIGHT
42°F
S 7 mph
precip
0%
04.02
thu
DAY
54°F
E 7 mph
precip
0%
NIGHT
46°F
NE 7 mph
precip
61%
04.03
fri
DAY
56°F
NE 12 mph
precip
0%
NIGHT
42°F
N 8 mph
precip
0%
04.04
sat
DAY
58°F
N 17 mph
precip
0%
NIGHT
44°F
NE 14 mph
precip
49%
04.05
sun
DAY
50°F
SE 9 mph
precip
100%
NIGHT
44°F
W 4 mph
precip
0%

Rennes Sea Water Temperature in March, °F

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Rennes was 10.2°F. The maximum and minimum values were 9.7°F and 10.5°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