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Hourly Forecast
Daylight Hours
07:02
Sunrise
19:27
Sunset
Moon
Waxing Crescent
12:39
Moonrise
20:16
Moonset
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Weather in Sønderborg today, September 15, 2026
Expect unsettled, showery conditions in Sønderborg on September 15, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. Wetter spells lean into the morning, when rain odds reach about 30% near 10:00. Skies look heaviest around 11:00, with cover close to 88%.
Expect highs of 21°C and cooler readings close to 13°C. Moisture in the air spans 78%-95%, with the highest values around 23:00. A lighter breeze peaks around 14:00 near 6.2 km/h.
Through the afternoon wet weather remains a factor, with rain chances near 64% around 21:00. Cloud also stays substantial, close to 95% near 20:00. Horizontal visibility sits around 15.6 km, briefly nearer 9.5 km. The sun rises at 07:02 and sets at 19:27, for a total of 12 hours 25 minutes of sunlight today.
In short, treat September 15, 2026 in Sønderborg as a damp day: pack covers, watch the wetter hours, and expect a high near 21°C.
Frequently asked questions about weather in Sønderborg
How warm does it get in Sønderborg?
The warmest month in Sønderborg is August, with average high temperatures of 21°C. The average temperature during this period is around 18°C.
How cold does it get in Sønderborg?
The coldest month in Sønderborg 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 Sønderborg?
The wettest month in Sønderborg is October, with an average of 75mm of precipitation.
What is the driest time of year in Sønderborg?
The driest month in Sønderborg is March, with an average of 44mm of precipitation.
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