Weather in Saint-Brieuc in September
How warm is it in Saint-Brieuc in September?
In September the typical daytime high in Saint-Brieuc is 20.2 °C on average, from 21.4 °C at the start to 18.4 °C at the end of the month.
That is 1.8 °C cooler than in August and 3.3 °C warmer than in October.
The last 10 years were 1.2 °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 Belle Ile - Le Talut (140 km), Pte De La Hague (147 km) and Nantes-Bouguenais (175 km); nearer ones count more.