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Hourly Forecast
Daylight Hours
07:16
Sunrise
19:35
Sunset
Moon
Waxing Crescent
13:52
Moonrise
21:07
Moonset
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Weather in Gronau today, September 16, 2026
Gronau could see fog on September 16, 2026, so early travel may need extra care. Visibility is the main watchpoint while the air stays still.
Expect highs of 18°C and cooler readings close to 13°C. The air stays humid, with relative humidity between 73% and 95% and the peak around 21:00. Expect gentle winds, highest near 14:00 at 3.9 km/h.
Through the afternoon wet weather remains a factor, with rain chances near 100% around 13:00. Cloud also stays substantial, close to 81% near 12:00. Visibility stays generally good near 25.1 km on average, though it can drop toward 8.2 km in thicker cloud or showers. The sun rises at 07:16 and sets at 19:35, for a total of 12 hours 18 minutes of sunlight today.
Overall, Gronau on September 16, 2026 needs patience with visibility, especially early, even as temperatures reach about 18°C.
Frequently asked questions about weather in Gronau
How warm does it get in Gronau?
The warmest month in Gronau is August, with average high temperatures of 24°C. The average temperature during this period is around 19°C.
How cold does it get in Gronau?
The coldest month in Gronau is January, with average low temperatures of 1°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Gronau?
The wettest month in Gronau is October, with an average of 83mm of precipitation.
What is the driest time of year in Gronau?
The driest month in Gronau is April, with an average of 56mm of precipitation.
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