Argostoli, Kefalonia weather in June
Temperature, sea and sunshine in June: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in June
Excellent
Best time to visit: June – September
What is the weather like in Argostoli, Kefalonia in June?
In June, Argostoli, Kefalonia is warm: daytime highs average 25 °C, and even at night it stays warm at around 21 °C. The sea averages 22.8 °C – refreshing for a swim. With around 12 hours of sunshine a day, there is plenty of sun. It hardly ever rains. The air is often humid and muggy. All in all, June is an excellent month for a holiday in Argostoli, Kefalonia.
June compared
How the weather changes from May to July. Tap a month to open it.
More details for June
- Daylight
- 14 h 48 min06:14 – 21:02
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 19 daysdew point 18 °C or more
- Wind
- 23 km/haverage daily peak
- Cloud cover
- 17 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+3Europe/Athens
How the score comes together
- Temperatureweight 35 %98 %
- Seaweight 25 %83 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 20 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in June
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Insect repellent
Argostoli, Kefalonia in June: quick answers
Is Argostoli, Kefalonia hot in June?
Warm rather than hot: in June, daytime highs in Argostoli, Kefalonia average 25 °C and nights cool to about 21 °C.
Can you swim in Argostoli, Kefalonia in June?
Yes. In June the sea averages 22.8 °C – refreshing for a swim.
Does it rain much in Argostoli, Kefalonia in June?
It hardly ever rains.
Argostoli, Kefalonia month by month
The whole year in Argostoli, KefaloniaAll destinations: GreeceWhere to go in JuneSea temperature in June
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)