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Temperatures in September
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Temperature in Brittany in September

Brittany is a region in France. September in has maximum daytime temperatures ranging from moderate in Porspoder with 18°C to high temperatures in Varennes with 23°C. Nighttime temperatures generally drop to 12°C in Varennes and 15°C in Porspoder. September falls during the summer season.

What is the temperature of the different cities in Brittany in September?

Explore the map below to discover average September temperatures at the top destinations in Brittany. For a deeper dive, simply click on any destination dot.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in September in Brittany?
    • Based on our systematic data collection, Varennes has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 23°C, while at night is goes down to an approximate temperature of 12°C."

  • What is the coldest city in September in Brittany?
    • In our database, Porspoder is the chilliest city in September in Brittany. Daytime temperatures typically peak at 18°C, while the nighttime lows hover around 15°C.

  • How much sun does Brittany get in September?
    • Most areas experience a moderate amount of sunshine, with approximately 169 hours of sunlight expected in Saint Malo. This makes it neither too gloomy nor overly bright.

  • What is the water's temperature in September?
    • The water temperature averages approximately 15°C in Brest this month, so not the best month to swim.

    Interested in more climate information?

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    • Weather and climate has detailed information for every country in the world. Are you going to France? Get detailed historical weather averages for many cities in France.

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