Best year time to visit Willisau

General weather information about Willisau

Average annual temperature is 10.8 °C

Absolute maximum temperature: 33.2 °C

Absolute minimum temperature: -8.1 °C

Number of sunny days: 141 days

Number of rainy days: 214 days

Number of snow days: 10 days

Look at detailed online map of Willisau

* Weather data for Willisau Switzerland is based on climate observations for 2026 year

Willisau air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	13.5	14.7	17.9	18.7	23.3	30.3	33.2	33.1	27.9	25.0	15.6	12.0
Average daytime temperature (°C)	5.0	7.4	10.6	11.5	17.5	25.2	24.5	24.4	22.8	17.7	8.9	6.6
Average temperature (°C)	2.2	2.7	6.1	7.4	13.0	19.7	19.6	19.3	17.5	12.4	5.4	3.2
Average night temperature (°C)	-0.6	-1.2	1.8	3.4	8.7	13.9	14.9	14.4	12.5	7.9	1.9	0.1
Absolute minimum temperature (°C)	-8.1	-5.0	-2.4	-3.5	4.9	10.8	10.3	9.4	5.7	3.0	-3.6	-7.8

Willisau 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	15.1	15.8	15.5	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)	2.9	6.4	6.5	6.7	8.5	13.3	11.5	10.3	10.2	7.6	3.5	3.5
Precipitation (mm)	55	32	143	166	180	67	254	144	63	95	206	177
Sunny days	12	17	11	6	8	14	6	14	19	18	4	12
Rainy days	14	9	19	24	23	16	25	17	11	13	25	18
Snow days	5	2	1	0	0	0	0	0	0	0	1	1

Willisau - weather forecast by months

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

Best time to visit Willisau:

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

June — 13.3(h)
July — 11.5(h)
August — 10.3(h)
September — 10.2(h)

Months with the longest average daylight duration in Willisau:

June — 15.8(h)
July — 15.5(h)

The largest precipitation sum in Willisau is at

April — 166(mm)

May — 180(mm)

July — 254(mm)

November — 206(mm)

December — 177(mm)

Weather forecast in the closest to Willisau admin centers