June · Greece
Best time to visit Kefalonia in June Weather, crowds & prices
Weather in Kefalonia in June
Average temperature 25°C, 14 mm of rain, about 30 days with 6+ hours of sunshine and 73% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
June score
9.9/10
Ranked #2 of 12 months
- Avg temp
- 25°C
- Rainfall
- 14 mm
- Humidity
- 73%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
June in Kefalonia scores 9.9/10 for beach and coastal travel - one of the top 12-month picks (#2). Expect around 25°C, 14 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Lush Ionian island known for dramatic Myrtos beach cliffs, subterranean Melissani lake, and colorful villages.
June ranks 2nd of 12 for Kefalonia — one of the best windows
With 25°C (76°F) on average, June delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
At just 14 mm for the month, rain will not shape your plans; you get about 30 days with 6+ hours of sunshine and 14.6 hours of daylight.
On our climate-comfort scale this is one of the strongest months of the year for Kefalonia at 9.9/10 (2nd of 12), just behind August at 10/10.
Pack light clothing, swimwear and real sun protection.
Expect peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Kefalonia in June?
- In June, Kefalonia averages 25°C, 14 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 9.9/10.
- Is June a good time to visit Kefalonia?
- June earns a 9.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Kefalonia in June?
- Expect about 14 mm of rain in June. Average humidity is 73% and there are about 30 days with 6+ hours of sunshine.
Curated in Kefalonia
Tickets & experiences
Things to do in Kefalonia
Kefalonia, Greece. Live activities and tours from GetYourGuide, matched to this destination.