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Hourly Forecast
Daylight Hours
07:15
Sunrise
19:30
Sunset
Moon
Waxing Crescent
13:23
Moonrise
21:31
Moonset
Daily Forecast
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Air Quality Data Available
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UV Index
Humidity
Weather in Rheinfelden today, September 16, 2026
Rain features in Rheinfelden on September 16, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise.
Expect highs of 21°C and cooler readings close to 14°C. The air stays humid, with relative humidity between 67% and 79% and the peak around 23:00. Winds stay light, near 4.6 km/h by 16:00, so the day feels still more than breezy.
Through the afternoon wet weather remains a factor, with rain chances near 34% around 16:00. Cloud also stays substantial, close to 97% near 18:00. Expect visibility near 37.6 km, with poorer spells close to 34.7 km. Expect sunrise at 07:15, sunset at 19:30, and 12 hours 15 minutes of sunlight today overall.
Overall, Rheinfelden on September 16, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 34% and the high sits around 21°C.
Frequently asked questions about weather in Rheinfelden
How warm does it get in Rheinfelden?
The warmest month in Rheinfelden is July, with average high temperatures of 26°C. The average temperature during this period is around 20°C.
How cold does it get in Rheinfelden?
The coldest month in Rheinfelden is January, with average low temperatures of -1°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Rheinfelden?
The wettest month in Rheinfelden is May, with an average of 129mm of precipitation.
What is the driest time of year in Rheinfelden?
The driest month in Rheinfelden is February, with an average of 70mm of precipitation.
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