Kefalonia, Greece

There are 110 mediterranean destinations in our catalog, and Kefalonia's numbers hold their own: a 100/100 sun score at its July peak, when rain interrupts barely 2% of days. For a beach trip along the Mediterranean, the data is a good starting point.

August is the heat peak, averaging 30°C highs; January is the cool end, when nights dip to around 9°C. On the rain ledger, July is the safest bet at a 2% chance of a wet day, while November climbs to 47%. The genuinely warm window — average highs of 24°C or better — covers June–September.

Averaged by season, sun scores land at 85 for spring, 99 for summer, 83 for autumn and 58 for winter — with typical afternoons of 19°, 29°, 23° and 15°C respectively. Summer wins on the numbers and winter loses them; everything in between is a trade-off between warmth and crowds. If your dates are flexible, June buys you 28°C warmth at the quiet end of the season.

Best months to visit Kefalonia

The best month on record is July — a 100/100 sun score, built on 6% cloud cover and 2% rain-day odds — followed by June and August. The dependable window is wider than the podium, though: April–November all score 70 or better. Skip January if sunshine is the point — it bottoms out at 53/100.

Put against its 109 mediterranean peers in July, it lands in the sunnier half of the group, ahead of 77% of them.

Month-by-month breakdown for Kefalonia → · More destinations for July →

As of the latest refresh, Kefalonia's next 15 days span 6°C to 23°C; 4 days look mostly sunny while 2 look likely to be wet — a live sun score of 75/100.