The temperatures in Koper in September are comfortable with low of 15°C and and high up to 24°C.
You can expect rain for roughly half of the month of September in Koper. 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 Koper in September 2024.
If you’re planning to visit Koper in the near future, we highly recommend that you review the 14 day weather forecast for Koper before you arrive.
Temperatures
24° / 15°
Rainy Days
9
Snowy Days
0
Dry Days
21
Rainfall
240
mm
Sun Hours
11.0
Hrs
