The highest day temperature in January 2024 was 57°F. The lowest night temperature was 22°F. The average values for day and night temperatures during January were 45.7°F и 38.2°F respectivly.

The average sea surface temperature in January 2024 for Rennes was 48.2°F. The maximum and minimum values were 47.0°F and 50.2°F respectively.

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

Precipitation total in January for Rennes is 1.7 in.

The average wind speed in January is 10.4 mph. It makes January one of the most windy 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 January is 3.6 hours.