Sempach

Sursee District, Kanton Luzern, Switzerland

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Current Weather

16°

Clear

Feels Like: 13°

Min: 10°

Max: 21°

The next few hours will be clear, with tomorrow reaching 25°C and dropping to 11°C. The coming days will be drizzle

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Hourly Forecast

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Today
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Daylight Hours

07:25

Sunrise

19:10

Sunset

11 hours 44 minutes of sunlight today

Moon

Waxing Gibbous

18:40

Moonrise

05:42

Moonset

Daily Forecast

Today

10°
21°

Saturday

10°
25°

Sunday

11°
26°

Monday

13°
26°

Tuesday

13°
25°

Wednesday

15°
26°

Thursday

15°
21°

Friday

14°
18°

Saturday

12°
19°

Sunday

13°
20°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

77% Humid
Low High

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Weather in Sempach tomorrow, September 26, 2026

Sunshine leads the day in Sempach on September 26, 2026, with a patch of cloud building near 03:00. The broader outlook stays fair despite that temporary thickening. Morning skies stay relatively clear, holding cloud close to 32% near 03:00. The early part of the day favours being outside.

Expect highs of 25°C and cooler readings close to 10°C. The air stays humid, with relative humidity between 37% and 89% and the peak around 00:00. Expect gentle winds, highest near 10:00 at 1.5 km/h.

Later hours favour clearer intervals, as cloud stays near 14% around 12:00. The afternoon is the better half for outdoor time. Visibility holds near 37.5 km, though it can fall to 28.6 km. Daylight runs from 07:27 to 19:08, lasting 11 hours 40 minutes of sunlight today.

The practical takeaway for Sempach is a bright September 26, 2026, ideal for outdoor errands before temperatures ease from about 25°C.

Frequently asked questions about weather in Sempach

How warm does it get in Sempach?

The warmest month in Sempach is July, with average high temperatures of 25°C. The average temperature during this period is around 20°C.

How cold does it get in Sempach?

The coldest month in Sempach is January, with average low temperatures of 0°C. The average temperature during this period is around 2°C.

What is the wettest time of year in Sempach?

The wettest month in Sempach is July, with an average of 164mm of precipitation.

What is the driest time of year in Sempach?

The driest month in Sempach is February, with an average of 81mm of precipitation.

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Metric (°C, km/h)