Is Cergy-Pontoise hot in September?
Days are typically mild at 21.7°C, while nights average 11.8°C.
France · 1991–2020 normal
Cergy-Pontoise in
September.
Typical September weather in Cergy-Pontoise: 21.7°C by day, 11.8°C at night, 40 mm of rain over 7 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high21.7°C
Typical low11.8°C
Rain40 mm
Wet days7
In the year-round weather comparison, September scores 82 out of 100 (August leads the year at 89). Daylight is calculated as 12 h 32 from latitude 49.04°.
September at a glance
What is Cergy-Pontoise 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 40 mm across about 7 wet days.
How much daylight is there?
There are about 12 h 32 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; August ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 8555643
- NOAA station
- FRM00007150 · LE BOURGET
- Station distance
- 26.7 km from the place centre
- Coverage
- Good coverage · 24 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 Cergy-Pontoise 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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