About Willisau
Willisau is a Swiss municipality located in the canton of Lucerne (LU), at 47.094° latitude and 8.023° longitude. The municipality is part of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Also known as Willisau, Willisau benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Willisau
The climate in Willisau is characteristic of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Temperatures, precipitation and wind conditions vary throughout the year with local features linked to altitude and surrounding terrain. Our data comes from official weather stations and real-time Netatmo sensors for Willisau and neighboring municipalities.
On this page you will find the detailed weather forecast for Willisau: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Willisau: 1991–2020 normals
In Willisau (614 m), the mean annual temperature is 10.0 °C. The warmest month is July (18.2 °C on average) and the coldest February (2.6 °C). About 1300 mm of precipitation falls per year, peaking in July (144 mm) with a minimum in January (83 mm). The sun shines for about 1530 hours a year, mostly in July (209 h). On average there are 76 frost days and 9 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 29.4 °C and the absolute minimum −7.5 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Sunshine (h) | Frost days | Summer days |
|---|---|---|---|---|---|---|---|
| Jan | 2.8 °C | 13.3 °C | −7.5 °C | 83 | 51 | 21 | 0 |
| Feb | 2.6 °C | 14.0 °C | −7.3 °C | 83 | 80 | 19 | 0 |
| Mar | 5.4 °C | 16.7 °C | −4.8 °C | 92 | 133 | 10 | 0 |
| Apr | 8.6 °C | 20.7 °C | −1.6 °C | 103 | 162 | 2 | 1 |
| May | 12.6 °C | 24.8 °C | 3.0 °C | 140 | 173 | 0 | 4 |
| Jun | 16.2 °C | 28.2 °C | 6.6 °C | 139 | 187 | 0 | 12 |
| Jul | 18.2 °C | 29.4 °C | 9.4 °C | 144 | 209 | 0 | 16 |
| Aug | 18.2 °C | 29.0 °C | 8.9 °C | 139 | 198 | 0 | 14 |
| Sep | 14.3 °C | 24.6 °C | 5.5 °C | 99 | 146 | 0 | 3 |
| Oct | 11.1 °C | 22.0 °C | 1.3 °C | 88 | 99 | 1 | 0 |
| Nov | 6.4 °C | 17.8 °C | −3.0 °C | 88 | 53 | 7 | 0 |
| Dec | 3.6 °C | 14.2 °C | −6.3 °C | 101 | 39 | 18 | 0 |
| Year | 10.0 °C | 29.4 °C | −7.5 °C | 1300 | 1530 | 76 | 50 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Napf (12 km, 1404 m), Pilatus (22 km, 2105 m), Luzern (22 km, 454 m), adjusted to the elevation of Willisau (614 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Willisau:
- Weather Grosswangen
- Weather Ettiswil
- Weather Buttisholz
- Weather Wolhusen
- Weather Alberswil
- Weather Hergiswil bei Willisau
- Weather Menznau
- Weather Doppleschwand
- Weather Oberkirch
- Weather Zell (LU)
- Weather Schötz
- Weather Romoos
→ Nearby cities · Canton Lucerne
Frequently asked questions about weather in Willisau
What is the weather in Willisau today?
At the top of the page you will find the current temperature, precipitation and wind in Willisau, updated in real time.
What is the 15-day forecast for Willisau?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Willisau.
Will it rain tomorrow in Willisau?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Willisau.
What is the air quality in Willisau?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Willisau.
Are there weather alerts for Willisau?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Willisau located?
Willisau sits at around 614 m above sea level in the canton of Lucerne. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Willisau?
The warmest month in Willisau is July, averaging 18.2 °C (1991–2020 normal). The coldest is February at 2.6 °C.
How much does it rain in Willisau per year?
Willisau receives about 1300 mm of precipitation a year. The wettest month is July (144 mm), the driest January (83 mm).
When is the best time to visit Willisau?
For warmth and sunshine: July (18.2 °C on average, 209 h of sun). The coldest month is February (2.6 °C). Check the 15-day forecast above for your dates.