The temperatures in Istria in May are comfortable with low of 15°C and and high up to 19°C.
You can expect about 3 to 8 days of rain in Istria during the month of May. 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 Istria in May 2025.
If you’re planning to visit Istria in the near future, we highly recommend that you review the 14 day weather forecast for Istria before you arrive.
Temperatures
19° / 15°
Rainy Days
7
Snowy Days
0
Dry Days
24
Rainfall
160
mm
Sun Hours
10.7
Hrs
