Monthly climate guide
Kefalonia weather in June
June in Kefalonia is typically warm, with average daytime highs around 25°C (78°F) and night-time lows near 22°C (71°F). The month usually brings about 23 mm of rain (fairly dry) and is mostly sunny. Daytime highs are 4°C warmer than May and 3°C cooler than July.
What stands out in June
- Rain is well below Kefalonia's usual level (around 66% less).
- Seasonally, June counts as early summer in Kefalonia.
- There's little difference between day and night (around 4°C).
- Humidity near 73% makes 25°C feel stickier than it sounds.
Avg high
25°C
78°F
Avg low
22°C
71°F
Rainfall
23 mm
fairly dry
Humidity
73%
relative
Sky
28%
cloud · mostly sunny
Kefalonia weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 14°C / 57°F | 11°C / 53°F | 111 mm | 74% | 66% |
| February | 14°C / 57°F | 12°C / 53°F | 93 mm | 75% | 65% |
| March | 15°C / 60°F | 13°C / 55°F | 74 mm | 77% | 59% |
| April | 18°C / 64°F | 15°C / 58°F | 33 mm | 76% | 51% |
| May | 21°C / 70°F | 18°C / 64°F | 24 mm | 76% | 48% |
| June | 25°C / 78°F | 22°C / 71°F | 23 mm | 73% | 28% |
| July | 28°C / 83°F | 25°C / 76°F | 10 mm | 70% | 14% |
| August | 29°C / 85°F | 26°C / 78°F | 14 mm | 67% | 16% |
| September | 27°C / 80°F | 24°C / 75°F | 72 mm | 68% | 33% |
| October | 23°C / 73°F | 20°C / 68°F | 101 mm | 72% | 47% |
| November | 19°C / 67°F | 17°C / 63°F | 115 mm | 72% | 59% |
| December | 16°C / 60°F | 13°C / 56°F | 134 mm | 72% | 61% |
What to pack for June
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- Sunglasses
Is June a good time to visit Kefalonia?
Our Kefalonia guide recommends: June and September for warm weather and sea; spring is green and good for hiking.
Visit Melissani around midday, when sunlight shines straight into the cave.
Best time to visit Kefalonia →Other Greece cities in June
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Kefalonia weather in June. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/greece/kefalonia/june
<a href="https://weathercompare.eu/weather/greece/kefalonia/june">Kefalonia weather in June</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/greece/kefalonia" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Kefalonia weather in June"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/greece/kefalonia/june">Kefalonia weather in June</a> – WeatherCompare</p>
Kefalonia in June: quick answers
Is June a good time to visit Kefalonia?
Yes. June is one of the best months for Kefalonia, with highs around 25°C and about 23 mm of rain.
How warm is Kefalonia in June?
Average highs are about 25°C (78°F) and average lows about 22°C (71°F), based on 10 years of daily data.
Does it rain a lot in Kefalonia in June?
Kefalonia typically gets around 23 mm of rain in June — fairly dry.
When is the best time to visit Kefalonia?
June and September for warm weather and sea; spring is green and good for hiking.
Figures are long-term averages for the area around Kefalonia (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.