The temperatures in Slovenj Gradec in September are usually low and can range between 10°C and 20°C.
You can expect rain for roughly half of the month of September in Slovenj Gradec. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Slovenj Gradec in September 2025.
If you’re planning to visit Slovenj Gradec in the near future, we highly recommend that you review the 14 day weather forecast for Slovenj Gradec before you arrive.
Temperatures
20° / 10°
Rainy Days
8
Snowy Days
0
Dry Days
22
Rainfall
205
mm
Sun Hours
9.5
Hrs
