The highest day temperature in April 2026 was 75°F. The lowest night temperature was 37°F. The average values for day and night temperatures during April were 61.2°F и 46.3°F respectivly.

The average sea surface temperature in April 2026 for Rennes was 53.6°F. The maximum and minimum values were 50.8°F and 56.2°F respectively.

You can expect various weather conditions during April. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in April for Rennes is 1.6 in.

The average wind speed in April is 9.3 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 April is 7.2 hours.