The highest day temperature in July 2023 was 95°F. The lowest night temperature was 50°F. The average values for day and night temperatures during July were 77.9°F и 57.4°F respectivly.

The average sea surface temperature in July 2023 for Rennes was 66.2°F. The maximum and minimum values were 64.6°F and 67.2°F respectively.

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

Precipitation total in July for Rennes is 1.4 in. It makes july one of the least rainy months of the year.

The average wind speed in July is 8.6 mph. It makes July one of the most windless months of the year for Rennes.

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 July is 9.3 hours.