Kefalonia weather

Our guide to the weather in Kefalonia during December

16

Average high

3

UV Index

177mm

Monthly rainfall

18

Sea temperature

Kefalonia is a stunningly beautiful Greek island with plenty of opportunities for relaxation and exploration. December can be a bit chilly but there are still plenty of outdoor activities and sightseeing opportunities. 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 December.

What's the temperature like in Kefalonia during December?

The temperature is extremely stable in December with average highs of 16℃ and lows just 2℃ lower at 14℃. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Kefalonia during December?

On average, there will be 7 rainy days during the month, amounting to 177.1mm 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 December?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during December. With moderate humidity and mild air temperatures, the breeze will have a slight cooling effect.

How warm is the sea in Kefalonia during December?

The water around Kefalonia is around 18℃ during December. It will feel a little on the cool when first entering, but you'll warm up quickly. Most kids will have no problem with this temperature, but those who feel the cold are unlikely to want to swim.

Holidays in Kefalonia

Holiday deals you might be interested in

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Check out this holiday to Kefalonia that we found on TUI. Now from £412pp, you can spend a week at the popular San Giorgio Hotel on an all-inclusive board basis with return flights. Luggage and transfers are included too and there's 49% (nearly £800) off.

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£520pp

All-inclusive • Flights

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£536pp

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Kefalonia Blog posts

From the UK's most popular travel bloggers

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Lesser known islands to visit on a Greek Island hopping itinerary

27th July 2020 by Stoked to Travel

There are more than 6,000 islands in Greece, so deciding where to go can be a pretty challenging task. A google search typically brings up the favourites, including Santorini, Mykonos and Crete. What about what the smaller islands? The ones that are just that bit harder to get to? The islands which are almost untouched by mass tourism, offering a slower and more gentle insight into the charm of Greek daily life. You may have read my Greek Island hopping itinerary here, which covers a popular...

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The best place to stay in Kefalonia

15th July 2020 by The Island Voyager

Kefalonia is one of the largest of the Greek islands and the biggest within the Ionian. It’s home to some great beaches, picturesque fishing villages and dramatic landscapes including an impressive underground cave. There’s a lot to explore. So as well as researching prior to my trip, I also visited the main areas to figure the best place to stay in Kefalonia....

Weather in Kefalonia

Our month-by-month guide to the weather and climate in Kefalonia

13.6

Kefalonia weather in

January
13.9

Kefalonia weather in

February
14.6

Kefalonia weather in

March
16.9

Kefalonia weather in

April
20.3

Kefalonia weather in

May
24.1

Kefalonia weather in

June
26.9

Kefalonia weather in

July
28.0

Kefalonia weather in

August
25.5

Kefalonia weather in

September
22.0

Kefalonia weather in

October
19.0

Kefalonia weather in

November
15.6

Kefalonia weather in

December