Very hot in Jul
36°C average high
avg high · 21° at night
25°C+ on almost every day · often 35°C+
Greece
Kefalonia weather in July
Is it warm? Yes. July in Kefalonia is hot: afternoons average 31°C and nights 22°C. Most days (80%) peak between 30°C and 34°C.
Hot · average high
31°C
25°C or more on almost every day.
- Average low22°overnight
- Sea26°average, 2022–2025
- Rainy days05 mm in the month
- SkyMostly clear5% cloud · 97% clear days
How warm it really gets
Every July afternoon from 2011–2025: 465 days. Most (80%) peaked between 30° and 34°.
July, year by year
The average July high in each year. The warmest, 2024, averaged 33°C; the coolest, 2018, 30°C.
Compared with home
Average July highs. Rain is rare: less than one wet day in a typical month.
- Kefalonia31°
- London24°
- Manchester21°
- Dublin20°
- Cork20°
- Glasgow20°
- Belfast20°
Warmer in July, not much further
Flying times are estimates from Dublin; Kefalonia is about 3h 45m.
Very hot in Jul
33°C average high
avg high · 20° at night
25°C+ on almost every day · often 35°C+
Hot in Jul
33°C average high
avg high · 21° at night
25°C+ on almost every day
Air: Copernicus ERA5-Land, 2011–2025, matched to the official averages for Kefalonia airport. Sea: Copernicus ERA5, 2022–2025. Rainy days = days with 1 mm of rain or more, as weather stations count them. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology