The weather in Ischia in September is hot. The average temperatures are between 22°C and 25°C.
You can expect about 3 to 8 days of rain in Ischia during the month of September. 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 Ischia in September 2026.
If you’re planning to visit Ischia in the near future, we highly recommend that you review the 14 day weather forecast for Ischia before you arrive.
Temperatures
25° / 22°
Rainy Days
6
Snowy Days
0
Dry Days
24
Rainfall
136
mm
Sun Hours
11.6
Hrs
