Kefalonia weather
Our guide to the weather in Kefalonia during September
Kefalonia is a stunningly beautiful Greek island with plenty of activities and attractions for visitors, especially during September when the weather is mild and sunny. We've looked at the most up-to-date weather data for Kefalonia, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Kefalonia weather in September.
How warm is it in Kefalonia during September?
The temperature is extremely stable in September with average highs of 26℃ and lows just 2℃ lower at 23℃. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.
Does it rain in Kefalonia during September?
On average, there will be 4 rainy days during the month, amounting to 141.6mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Kefalonia during September?
You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during September. With moderate humidity, any breeze will have a welcome cooling effect.
How warm is the sea in Kefalonia during September?
The water around Kefalonia reaches a very pleasant 25℃ during September. This is very warm, and will feel bath-like. People who normally feel the cold will find this temperature perfectly acceptable.
Weather in Kefalonia
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