Is Nantes hot in September?
Days are typically mild at 22.4°C, while nights average 11.8°C.
France · 1991–2020 normal
Nantes in
September.
Typical September weather in Nantes: 22.4°C by day, 11.8°C at night, 60 mm of rain over 7.8 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high22.4°C
Typical low11.8°C
Rain60 mm
Wet days7.8
In the year-round weather comparison, September scores 81 out of 100 (July leads the year at 90). Daylight is calculated as 12 h 30 from latitude 47.22°. Open-water sea temperature is 17.4°C (44 km from the place centre).
September at a glance
What is Nantes like in September?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 60 mm across about 8 wet days.
How much daylight is there?
There are about 12 h 30 between sunrise and sunset at mid-month, calculated from the place latitude.
Is September a good time to visit?
September ranks 4 of 12 in our weather comparison; July ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 2990969
- NOAA station
- FRM00007222 · NANTES-BOUGUENAIS
- Station distance
- 8.6 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Nantes is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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