Weather in Rennes in October 2025
Average weather
Average temperature in Rennes in October
The temperature in October is +66°F on average, with a range between a maximum of +82°F during the day and a minimum of +43°F at night.
The average maximum temperature goes down 55% by the end of the month, compared with the beginning of the month, from +82°F to +61°F.
Is Rennes warm or cold in October?
Rennes is typically mild in October.
Maximum temperatures go down compared to the previous month from +70°F to +61°F. The minimum temperature also goes down from +52°F to +48°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how October is compared to other months in Rennes:
Climate in Rennes in October
| September | October | November | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +70°F | +61°F | +54°F | ||||
| Min. temperature | ||||||
| +37°F | +27°F | +23°F | ||||
| Max. temperature | ||||||
| +93°F | +82°F | +68°F | ||||
| Rainfall | ||||||
| 45 mm | 67 mm | 57 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 3 m/s | ||||
| Humidity | ||||||
| 77% | 83% | 86% | ||||
| Air pressure | ||||||
| 1016 HPa | 1014 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 7 | 4 | 3 | ||||
| Cloudy days | ||||||
| 8 | 9 | 10 | ||||
| Rainy days | ||||||
| 13 | 17 | 16 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
October weather is still as ok as in September. It’s getting colder in October. From +70°F in the day, the average maximum temperature lowers to +61°F. Prepare for more rain. Average rainfall goes from 45 mm to 67 mm. Humidity rises from 77% to 83%. The average wind speed doesn’t change much during October, staying around 2 m/s. The days becoming less sunny, going from 7 sunny days in September to 4 in October.
November brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Rennes is gradually increasing during October, going from 2 m/s to 3 m/s over the course of the month.
Rain
How was the weather last October in Rennes?
Climate Change Over the Years
The climate in Rennes in October has not changed that much over the last 43 years.
The average temperature was the lowest in 1986 (+57°F) and the highest in 2022 (+64°F). The driest year was 1996 with only 390 mm of rainfall, and the wettest year was 2000 with 878 mm.
FAQ
Is October a good time to visit Rennes?
Can you sunbathe in Rennes in October?
Is Rennes rainy in October?
Is it sunny in Rennes in October?
Other cities in France
Monthly weather in Rennes
Source of the data
For this page, we’ve looked at the typical weather in Rennes, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.