Rennes · France
Weather in Rennes in September
In September the typical daytime high in Rennes is 21.1 °C on average, from 22.6 °C at the start to 19.1 °C at the end of the month.
The last 10 years were 1.4 °C warmer than more than 40 years ago.
Click a day for more: afternoon and night, the usual range, records and how fast it is warming.
The average of the weather stations Nantes-Bouguenais (107 km), Belle Ile - Le Talut (147 km) and Pte De La Hague (181 km); nearer ones count more.