GR Kefalonia, Greece

Best Time to Visit
Kefalonia

Kefalonia, the largest Ionian island — Melissani Cave, Myrtos Beach and limestone cliffs.

Updated: March 2026 · Open-Meteo · 10 years · 12 months compared · 38.18°N 20.49°E
JuneBest month
81°FOptimal temperature
11%Rainy days

When to visit Kefalonia?

🌞 Best time overall
June
🌡️ Optimal temperature
70°F–81°F in June
🌧 Least rain
11% rainy days in June
🌧 Wettest month
January (48%)
📅 Best score
9.4/10

Best time by type of trip

🏖️Myrtos BeachJune–September — iconic beach, white cliffs and turquoise water.
💎Melissani CaveApril–October — blue underground lake, zenith light.
🍷Robola WineSeptember–October — harvest, unique grape and Robola vineyards.
SailingMay–September — Fiskardo, Assos and hidden coves.

Kefalonia weather month by month

MonthMin °FMax °FRainy days (%)Precip. in/dSun h/dScore
🌦️ January48°F57°F48%0.2in8.3h4.6/10
⛅ February48°F59°F33%0.1in9.5h6.9/10
⛅ March50°F61°F37%0.1in10.3h7.0/10
🌤️ April55°F64°F22%0.1in11.8h7.4/10
🌤️ May61°F72°F22%0.1in13.0h8.3/10
☀️ June70°F81°F11%0.0in13.2h9.4/10
☀️ July73°F86°F3%0.0in13.4h9.2/10
☀️ August75°F86°F8%0.0in12.6h8.9/10
☀️ September70°F81°F21%0.1in11.0h8.6/10
🌤️ October63°F73°F29%0.1in9.8h7.7/10
🌦️ November57°F66°F47%0.3in8.8h7.0/10
🌦️ December52°F61°F43%0.2in8.3h5.8/10
Ideal Fair Challenging climate Source: Open-Meteo · 10 years

What to expect each season

🌸 Spring (Mar–May) — Good time

Average 19°F, 27% rainy days, 11.7h sunshine/day. Score: 7.6/10.

☀️ Summer (Jun–Aug) — Excellent time

Average 29°F, 7% rainy days, 13.1h sunshine/day. Score: 9.2/10.

🍂 Autumn (Sep–Nov) — Good time

Average 23°F, 32% rainy days, 9.9h sunshine/day. Score: 7.8/10.

❄️ Winter (Dec–Feb) — Acceptable

Average 15°F, 41% rainy days, 8.7h sunshine/day. Score: 5.8/10.

Find a place to stay in Kefalonia

Check availability during the recommended period

Tip : February, March offer a good weather/price balance — decent score with fewer crowds.

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Activities and tours in Kefalonia

Guided tours, skip-the-line tickets and local experiences. Browse activities on GetYourGuide

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Detailed weather by month

Frequently asked questions

June is ideal with 11% rainy days and 27°F.
January is the wettest month with 48% rainy days.
Yes, June is the best month with an average of 27°F.
In winter, the average score is 5.8/10. Acceptable conditions for cultural visits.

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