The temperatures in Koper in April are quite cold with temperatures between 8°C and 17°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Koper during the month of April. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Koper in April 2025.
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
17° / 8°
Rainy Days
7
Snowy Days
0
Dry Days
23
Rainfall
143
mm
Sun Hours
10.1
Hrs
