Kefalonia in September and October: weather, sea and what is open
September is still full summer, and October is quiet with a pleasant sea. Temperatures, what is open and what to plan.
- September: about 27°C by day and a 25°C sea, with little rain.
- October: about 22°C by day, a 22°C sea and around ten rainy days.
- Seasonal businesses close in late October; Argostoli always has places open.
Want a beach holiday? Go in September. Want quiet and lower prices? Early October. In late October, stay in Argostoli and check what is open before you go.
What is the weather like in Kefalonia in September and October?
September in Kefalonia is still full summer: hot, sunny and with a warm sea. October brings autumn and more rainy days, but you can still swim, especially early in the month.
| Month | Day | Night | Sea | Days with rain | Sunshine hours a day |
|---|---|---|---|---|---|
| September | 27°C | 17°C | 25°C | 4 | 9 |
| October | 22°C | 14°C | 22°C | 10 | 7 |
| November | 18°C | 10°C | 20°C | 13 | 5 |
Long-term averages for Argostoli from Weather2Travel (September–November).
Kefalonia in September: the best time?
For many, September is Kefalonia's best month: the sea is at its warmest, there are fewer people than in August, and prices gradually fall. Famous beaches such as Myrtos are still in full swing, and most restaurants and boat trips run.
Kefalonia in October: what is open?
In October the island quietens down. Early in the month many restaurants, hotels and tours are still open. Towards the end of the month seasonal businesses close, especially in small resorts. Argostoli, the capital, and Lixouri have year-round residents, so you will always find somewhere to eat and sleep.
Keep in mind:
- Rain: about ten days with rain a month, usually short showers.
- Sea: about 22°C, still pleasant for most swimmers.
- Daylight: shorter, so plan trips for the morning and midday.
Flights to Kefalonia in autumn
Direct flights from Israel to Kefalonia are seasonal. Out of season you fly via Athens and continue by domestic flight or ferry. Details in flights to Kefalonia from Israel.
Kefalonia at Sukkot
Sukkot 2027 begins on the evening of 15 October 2027. It is a good time for a family trip to Kefalonia: still warm, a pleasant sea and fewer tourists. The island has no Chabad house or kosher place, so plan meals ahead. See Sukkot in Greece and kosher food and Shabbat in Kefalonia.
Where to stay in autumn
In September every area is open. In October it is better to stay in Argostoli or a larger town, where more restaurants stay open. Compare areas in where to stay in Kefalonia. Travelling with children? Kefalonia with kids.
FAQ
Can you swim in Kefalonia in October? Yes, for most people. The sea averages about 22°C and is warmer early in the month.
Is Kefalonia better in September or October? September for a beach holiday with a warm sea and everything open. October if you prefer quiet and lower prices, and more sightseeing than beach time.
How many rainy days does Kefalonia have in October? About ten days with rain on average, usually short showers rather than a full day of rain.
Are hotels in Kefalonia open in October? Many are open early in the month. Towards the end of October some seasonal hotels close, so check before you book.
