Gränichen

Bezirk Aarau, Kanton Aargau, Switzerland

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Current Weather

18°

Partly Cloudy

Feels Like: 21°

Min: 8°

Max: 21°

The next few hours will be mostly cloudy, with today reaching 21°C and dropping to 9°C. The coming days will be drizzle

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Hourly Forecast

18° 20° 20° 21° 21° 19° 17° 15° 15° 14° 13° 12° 11° 10° 10° 9° 9° 9° 9° 9° 12° 16° 19° 21°
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1am
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Today
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Daylight Hours

07:26

Sunrise

19:10

Sunset

11 hours 44 minutes of sunlight today

Moon

Waxing Gibbous

18:40

Moonrise

05:42

Moonset

Daily Forecast

Today

8°
21°

Saturday

9°
25°

Sunday

10°
26°

Monday

13°
26°

Tuesday

14°
26°

Wednesday

14°
26°

Thursday

16°
20°

Friday

14°
19°

Saturday

11°
20°

Sunday

12°
21°

Air Quality Data Available

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UV Index

Wear sunscreen
4 Moderate
Low Extreme

Humidity

56% Comfortable
Low High

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Weather in Gränichen today, September 25, 2026

Plan for bright conditions in Gränichen on September 25, 2026, though cloud cover thickens for a spell near 13:00. The day as a whole still leans toward sunshine.

Temperatures climb from an overnight low near 8°C toward a daytime high of about 21°C. Expect humidity between 43% and 81%, most humid near 23:00. A lighter breeze peaks around 14:00 near 1.6 km/h.

Through the afternoon skies look more workable, with cloud near 41% around 13:00. Later outdoor plans have a clearer window than the morning may have suggested. Horizontal visibility holds close to 16.1 km. The sun rises at 07:26 and sets at 19:10, for a total of 11 hours 44 minutes of sunlight today.

In short, September 25, 2026 looks like a fine day in Gränichen for being outside, peaking around 21°C.

Frequently asked questions about weather in Gränichen

How warm does it get in Gränichen?

The warmest month in Gränichen is July, with average high temperatures of 25°C. The average temperature during this period is around 19°C.

How cold does it get in Gränichen?

The coldest month in Gränichen is January, with average low temperatures of -1°C. The average temperature during this period is around 1°C.

What is the wettest time of year in Gränichen?

The wettest month in Gränichen is May, with an average of 163mm of precipitation.

What is the driest time of year in Gränichen?

The driest month in Gränichen is February, with an average of 78mm of precipitation.

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Metric (°C, km/h)