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Hourly Forecast
Daylight Hours
07:24
Sunrise
19:08
Sunset
Moon
Waxing Gibbous
18:39
Moonrise
05:40
Moonset
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View stargazing scoreWeather in Arth today, September 25, 2026
Arth starts September 25, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds. Cloud leads the morning, peaking close to 97% near 06:00. Sunshine has little room until later in the day.
Expect highs of 22°C and cooler readings close to 14°C. Relative humidity sits between 43% and 87%, reaching its peak around 05:00. Winds stay light, near 2.0 km/h by 23:00, so the day feels still more than breezy.
Afternoon conditions open up, holding cloud close to 14% near 13:00. The day finishes on a milder, brighter note. Visibility holds near 36.6 km, though it can fall to 26.2 km. Daylight runs from 07:24 to 19:08, lasting 11 hours 44 minutes of sunlight today.
Overall, Arth on September 25, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 22°C.
Frequently asked questions about weather in Arth
How warm does it get in Arth?
The warmest month in Arth is July, with average high temperatures of 21°C. The average temperature during this period is around 17°C.
How cold does it get in Arth?
The coldest month in Arth is January, with average low temperatures of -3°C. The average temperature during this period is around -1°C.
What is the wettest time of year in Arth?
The wettest month in Arth is July, with an average of 202mm of precipitation.
What is the driest time of year in Arth?
The driest month in Arth is February, with an average of 101mm of precipitation.
