The highest day temperature in March 2026 was 61°F. The lowest night temperature was 32°F. The average values for day and night temperatures during March were 55.2°F и 41.9°F respectivly.

The average sea surface temperature in March 2026 for Rennes was 50.3°F. The maximum and minimum values were 49.4°F and 51.0°F respectively.

Most of the days in March are gloomy but you can also expect sunny days.

Precipitation total in March for Rennes is 1.3 in. It makes march one of the least rainy months of the year.

The average wind speed in March is 10.4 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Rennes in March is 5.6 hours.