Au

Wahlkreis Rheintal, Kanton St. Gallen, Switzerland

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Current Weather

10°

Partly Cloudy

Feels Like: 10°

Min: 10°

Max: 19°

The next few hours will be partly cloudy, with today reaching 19°C and dropping to 10°C. The coming days will be mostly cloudy

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Hourly Forecast

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Today
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Daylight Hours

07:20

Sunrise

19:04

Sunset

11 hours 44 minutes of sunlight today

Moon

Waxing Gibbous

18:34

Moonrise

05:35

Moonset

Daily Forecast

Today

10°
19°

Saturday

10°
24°

Sunday

12°
24°

Monday

14°
25°

Tuesday

14°
24°

Wednesday

15°
23°

Thursday

16°
23°

Friday

15°
18°

Saturday

13°
19°

Sunday

12°
19°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

96% Very Humid
Low High

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Weather in Au today, September 25, 2026

Au sees a largely clear day on September 25, 2026, interrupted by cloudier skies around 08:00. Plan for bright conditions either side of that cloudier interval. The opening hours look fair, as cloud stays near 43% around 08:00. Morning errands should face fewer weather interruptions.

The day peaks near 19°C and cools toward 10°C. Relative humidity sits between 59% and 98%, reaching its peak around 08:00. Winds stay light, near 1.7 km/h by 13:00, so the day feels still more than breezy.

Afternoon conditions open up, holding cloud close to 25% near 19:00. The day finishes on a milder, brighter note. Expect visibility near 30.9 km, with poorer spells close to 2.3 km. The sun rises at 07:20 and sets at 19:04, for a total of 11 hours 44 minutes of sunlight today.

The practical takeaway for Au is a bright September 25, 2026, ideal for outdoor errands before temperatures ease from about 19°C.

Frequently asked questions about weather in Au

How warm does it get in Au?

The warmest month in Au is August, with average high temperatures of 23°C. The average temperature during this period is around 18°C.

How cold does it get in Au?

The coldest month in Au is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.

What is the wettest time of year in Au?

The wettest month in Au is August, with an average of 181mm of precipitation.

What is the driest time of year in Au?

The driest month in Au is February, with an average of 95mm of precipitation.

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Metric (°C, km/h)