About Sempach
Sempach is a Swiss municipality located in the canton of Lucerne (LU), at 47.158° latitude and 8.207° longitude. The municipality is part of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Also known as Sempach, Sempach benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Sempach
The climate in Sempach 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 Sempach and neighboring municipalities.
On this page you will find the detailed weather forecast for Sempach: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Sempach: 1991–2020 normals
In Sempach (557 m), the mean annual temperature is 9.9 °C. The warmest month is July (18.7 °C on average) and the coldest January (1.7 °C). About 1192 mm of precipitation falls per year, peaking in August (140 mm) with a minimum in January (70 mm). The sun shines for about 1530 hours a year, mostly in July (209 h). On average there are 76 frost days and 10 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 30.6 °C and the absolute minimum −7.6 °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 | 1.7 °C | 12.5 °C | −7.6 °C | 70 | 51 | 20 | 0 |
| Feb | 2.1 °C | 13.9 °C | −7.6 °C | 73 | 80 | 18 | 0 |
| Mar | 5.6 °C | 18.3 °C | −4.9 °C | 77 | 133 | 10 | 0 |
| Apr | 9.2 °C | 22.0 °C | −1.5 °C | 96 | 162 | 2 | 1 |
| May | 13.3 °C | 26.2 °C | 3.0 °C | 127 | 173 | 0 | 4 |
| Jun | 16.9 °C | 29.6 °C | 7.0 °C | 136 | 187 | 0 | 12 |
| Jul | 18.7 °C | 30.6 °C | 9.5 °C | 137 | 209 | 0 | 16 |
| Aug | 18.4 °C | 30.0 °C | 8.8 °C | 140 | 198 | 0 | 14 |
| Sep | 14.5 °C | 25.6 °C | 5.2 °C | 92 | 146 | 0 | 4 |
| Oct | 10.5 °C | 21.9 °C | 0.8 °C | 78 | 99 | 1 | 0 |
| Nov | 5.5 °C | 16.8 °C | −3.6 °C | 77 | 53 | 7 | 0 |
| Dec | 2.4 °C | 13.3 °C | −7.4 °C | 88 | 39 | 17 | 0 |
| Year | 9.9 °C | 30.6 °C | −7.6 °C | 1192 | 1530 | 76 | 51 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Luzern (15 km, 454 m), Cham (20 km, 443 m), Pilatus (20 km, 2105 m), adjusted to the elevation of Sempach (557 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Sempach:
- Weather Beromünster
- Weather Eich
- Weather Hildisrieden
- Weather Römerswil
- Weather Rain
- Weather Nottwil
- Weather Schenkon
- Weather Eschenbach (LU)
- Weather Hitzkirch
- Weather Rothenburg
- Weather Ermensee
- Weather Hochdorf
→ Nearby cities · Canton Lucerne
Frequently asked questions about weather in Sempach
What is the weather in Sempach today?
At the top of the page you will find the current temperature, precipitation and wind in Sempach, updated in real time.
What is the 15-day forecast for Sempach?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Sempach.
Will it rain tomorrow in Sempach?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Sempach.
What is the air quality in Sempach?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Sempach.
Are there weather alerts for Sempach?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Sempach located?
Sempach sits at around 557 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 Sempach?
The warmest month in Sempach is July, averaging 18.7 °C (1991–2020 normal). The coldest is January at 1.7 °C.
How much does it rain in Sempach per year?
Sempach receives about 1192 mm of precipitation a year. The wettest month is August (140 mm), the driest January (70 mm).
When is the best time to visit Sempach?
For warmth and sunshine: July (18.7 °C on average, 209 h of sun). The coldest month is January (1.7 °C). Check the 15-day forecast above for your dates.