Weather in Challans in September

General weather information about Challans

Average annual temperature is 14.0 °C

Absolute maximum temperature: 36.5 °C

Absolute minimum temperature: -3.6 °C

Number of sunny days: 132 days

Number of rainy days: 233 days

Look at detailed online map of Challans

* Weather data for Challans France is based on climate observations for 2026 year

Challans air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	15.3	15.9	19.5	19.3	26.8	30.5	31.8	36.5	35.1	28.4	17.6	15.8
Average daytime temperature (°C)	9.6	10.9	12.8	15.0	20.2	25.8	23.2	24.3	25.6	20.5	13.8	12.0
Average temperature (°C)	7.4	6.5	9.6	11.2	15.8	20.9	19.2	20.0	20.4	16.0	11.0	9.4
Average night temperature (°C)	5.1	3.0	6.6	7.4	11.1	16.2	15.1	15.9	16.2	12.3	8.1	6.6
Absolute minimum temperature (°C)	-3.6	-3.0	-2.5	0.8	6.8	13.6	10.3	9.8	9.7	7.3	-0.3	-2.5

Challans monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	11.0	12.0	14.0	15.0	15.0	15.0	14.0	13.0	11.0	10.0	8.0
Daylight mean duration (h)	9.0	10.3	11.9	13.6	15.0	15.8	15.4	14.2	12.6	10.9	9.4	8.6
Daylight minimum duration (h)	8.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	8.0	8.0
Sunshine mean duration (h)	4.1	6.5	7.5	8.4	11.9	12.4	12.1	10.8	9.9	6.7	5.3	4.4
Precipitation (mm)	119	13	130	78	49	29	47	31	113	182	143	145
Sunny days	8	20	8	10	12	16	7	9	14	14	5	9
Rainy days	23	8	23	20	19	14	24	22	16	17	25	22
Snow days	0	0	0	0	0	0	0	0	0	0	0	0

Challans - weather forecast by months

Challans weather in january Challans weather in february Challans weather in march Challans weather in april Challans weather in may Challans weather in june Challans weather in july Challans weather in august Challans weather in september Challans weather in october Challans weather in november Challans weather in december

Best time to visit Challans:

The best time to visit Challans during the most sunny months:

May — 11.9(h)
June — 12.4(h)
July — 12.1(h)
August — 10.8(h)

Months with the longest average daylight duration in Challans:

June — 15.8(h)
July — 15.4(h)

The largest precipitation sum in Challans is at

January — 119(mm)

March — 130(mm)

October — 182(mm)

November — 143(mm)

December — 145(mm)

Weather forecast in the closest to Challans admin centers