Average annual temperature is 18.2 °C
Absolute maximum temperature: 42.6 °C
Absolute minimum temperature: 2.7 °C
Number of sunny days: 163 days
Number of rainy days: 201 days
Number of snow days: 1 day
Look at detailed online map of Kefallonia Regional Unit
* Weather data for Kefallonia Regional Unit Greece is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 17.5 | 19.7 | 19.8 | 20.7 | 26.2 | 32.1 | 42.6 | 39.7 | 35.2 | 29.9 | 24.7 | 20.3 |
| Average daytime temperature (°C) | 14.1 | 13.0 | 16.0 | 16.9 | 22.3 | 27.5 | 36.1 | 33.1 | 29.5 | 26.2 | 19.5 | 15.8 |
| Average temperature (°C) | 11.1 | 9.4 | 12.2 | 13.5 | 18.5 | 23.5 | 30.0 | 27.5 | 23.7 | 20.9 | 15.8 | 12.0 |
| Average night temperature (°C) | 8.4 | 6.4 | 8.6 | 10.3 | 15.1 | 19.6 | 24.2 | 22.4 | 18.9 | 16.7 | 12.5 | 8.5 |
| Absolute minimum temperature (°C) | 5.1 | 2.7 | 6.8 | 7.8 | 12.2 | 16.9 | 19.9 | 19.1 | 16.1 | 14.2 | 5.1 | 3.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.5 | 9.1 | 10.0 | 10.7 | 10.0 | 12.8 | 13.3 | 12.4 | 10.4 | 9.8 | 7.6 | 6.9 |
| Precipitation (mm) | 164 | 12 | 84 | 91 | 180 | 51 | 6 | 13 | 55 | 35 | 133 | 73 |
| Sunny days | 9 | 18 | 12 | 6 | 5 | 12 | 28 | 20 | 19 | 17 | 6 | 11 |
| Rainy days | 22 | 9 | 19 | 24 | 26 | 18 | 3 | 11 | 11 | 14 | 24 | 20 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Kefallonia Regional Unit during the most sunny months:
The largest precipitation sum in Kefallonia Regional Unit is at