Click on a day for an hourly weather forecast
The weather in Kefalonia in August is very hot. The average temperatures are between 26°C and 28°C, drinking water regularly is advisable.
There shouldn't be any rainy days in in Kefalonia during August. Having said that, the days are very hot in August so hanging out outside is more recomanded during the after noons and evening time.
Our weather forecast can give you a great sense of what weather to expect in Kefalonia in August 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.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 14° / 12° | 7 | 24 | 0 | 138 mm | Ok | Kefalonia in January |
| February | 14° / 12° | 5 | 23 | 0 | 108 mm | Good | Kefalonia in February |
| March | 15° / 13° | 4 | 27 | 0 | 75 mm | Good | Kefalonia in March |
| April | 17° / 15° | 2 | 28 | 0 | 41 mm | Good | Kefalonia in April |
| May | 20° / 19° | 1 | 30 | 0 | 25 mm | Good | Kefalonia in May |
| June | 24° / 22° | 1 | 29 | 0 | 30 mm | Perfect | Kefalonia in June |
| July | 26° / 25° | 1 | 30 | 0 | 8 mm | Perfect | Kefalonia in July |
| August | 28° / 26° | 0 | 31 | 0 | 6 mm | Perfect | Kefalonia in August |
| September | 25° / 24° | 4 | 26 | 0 | 107 mm | Perfect | Kefalonia in September |
| October | 22° / 21° | 7 | 24 | 0 | 155 mm | Ok | Kefalonia in October |
| November | 19° / 18° | 6 | 24 | 0 | 155 mm | Good | Kefalonia in November |
| December | 16° / 14° | 6 | 25 | 0 | 129 mm | Good | Kefalonia in December |