The weather in Kefalonia in September is very hot. The average temperatures are between 24°C and 25°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Kefalonia 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 Kefalonia in September 2025.
If you’re planning to visit Kefalonia in the near future, we highly recommend that you review the 14 day weather forecast for Kefalonia before you arrive.
Temperatures
25° / 24°
Rainy Days
4
Snowy Days
0
Dry Days
26
Rainfall
107
mm
Sun Hours
11.6
Hrs
