Willisau Climate by Month
The climate in Willisau is marked by big temperature swings throughout the year.
Temperatures range from warm during the warmest months
to cold in the cooler months.
It also has a notably wet climate with much precipitation.
Let's now guide you through the climate details for a complete overview.
Average day and night temperature
In Willisau, temperatures differ significantly between summer and winter months. Average daytime temperatures range from a comfortable 24°C in July, the warmest time of the year, to a chilly 4°C during cooler months like February. At night, temperatures typically average around -2°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Willisau experiences significant rain/snowfall throughout the year, averaging 1588 mm of precipitation annually. While rainfall varies throughout the year, each season offers its own charm. July brings wetter days averaging 179 mm of precipitation, spread over 16 rainy days. In contrast, January experiences a drier climate, with about 100 mm of snow/rainfall spread across 15 snowy/rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Willisau. While July receives considerable daily sunshine with up to 8.1 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.8 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is moderate throughout the year in Willisau.
Relative humidity over the year
The best time of year to visit Willisau in Switzerland
During the months of June, July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Most rainfall (rainy season) is seen in May, June, July and August.
July has an average maximum temperature of 24°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of 4°C.
July tops the wettest month list with 179 mm of rainfall.
January is the driest month with 100 mm of precipitation.
July is the sunniest month with an average of 244 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
