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Hourly Forecast
Daylight Hours
07:22
Sunrise
19:17
Sunset
Moon
Waxing Gibbous
17:52
Moonrise
02:01
Moonset
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View stargazing scoreWeather in Greffern today, September 22, 2026
Greffern starts September 22, 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. Expect a brighter morning, with limited cloud around 46% by 07:00. Conditions start on a settled note.
The temperature range runs from about 9°C up to 21°C. The air stays humid, with relative humidity between 35% and 85% and the peak around 08:00. Expect gentle winds, highest near 17:00 at 3.7 km/h.
Through the afternoon skies look more workable, with cloud near 43% around 12:00. Later outdoor plans have a clearer window than the morning may have suggested. Visibility holds near 38.5 km, though it can fall to 30.0 km. The sun rises at 07:22 and sets at 19:17, for a total of 11 hours 54 minutes of sunlight today.
Taken together, settled sunshine in Greffern on September 22, 2026 makes outdoor timing easier, with highs near 21°C.
Frequently asked questions about weather in Greffern
How warm does it get in Greffern?
The warmest month in Greffern is August, with average high temperatures of 26°C. The average temperature during this period is around 21°C.
How cold does it get in Greffern?
The coldest month in Greffern is January, with average low temperatures of 1°C. The average temperature during this period is around 3°C.
What is the wettest time of year in Greffern?
The wettest month in Greffern is January, with an average of 101mm of precipitation.
What is the driest time of year in Greffern?
The driest month in Greffern is August, with an average of 52mm of precipitation.
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