Weather in Kefalonia in April

How April compares

April is the 8th warmest month of the year in Kefalonia and ranks 105th of 134 destinations we compare for April - see where else is hot in April. Within Greece it is 28th of 44 (Greece in April). Against London's average high of 13.5°C in April, Kefalonia is 3.7°C warmer by day and 8.8°C warmer at night.

Daytime and night-time in April

The typical April day in Kefalonia peaks at 17.2°C, but that is an average: the warmest 10% of days reach 19.7°C or more. Roughly 1 in 167 days top 25°C. Nights average 13.9°C; one night in ten drops to 11.3°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest April day here reached 27.9°C (2018-04-28) and the coldest night 7.2°C (2003-04-08).

Rain in April

Some rain (4-8 rainy days): about 7 days with 1 mm or more, 41 mm in total. Year to year it varies a lot - the wettest April was 2001 with 93 mm, the driest 2018 with 3 mm. Humidity averages 77%.

Sea temperature in April

The sea averages 16.0°C - too cold for most (under 18°c). Depending on the year it ranges from 15.4°C to 16.7°C. For the warmest sea here, come in August (26.0°C).

Sunshine and daylight

Around 7.8 hours of sunshine a day (estimated from cloud cover), 13.0 hours of daylight: the sun rises about 07:02 and sets about 20:14 local time in mid-April. Average cloud cover is 40%.

Is April a good time to visit Kefalonia?

April is not the strongest month here: mild days. The best months for Kefalonia on our scoring are July, August, June; months averaging 25°C or more: Jul, Aug, Sep.

Comfortable for being active, less reliable for sunbathing

Expect weather that is better suited to walking and spending time outdoors than lying still on a beach. The average daytime high is 3.7°C above London's April figure, so the improvement is noticeable but not a leap into summer. The warmer days reach around 20°C, while days reaching 25°C are rare. Pack light layers that you can remove in sunshine, plus a jumper or jacket for evenings. Nights average around 14°C, with the colder ones falling to roughly 11°C or below. If your main aim is dependable heat, April is likely to feel too cool.

Useful sunshine, with room for wet-weather plans

There is enough sunshine to make outdoor plans worthwhile: April averages about 7.8 hours a day within 13.0 hours of daylight. That leaves plenty of daylight without making every day a clear-sky day. About 7 days have measurable rain, so bring a light waterproof and keep your plans flexible rather than relying on an entirely dry stay. The practical approach is to use brighter spells for longer outings and leave yourself options when rain arrives. You should not write April off as wet, but you should not pack as though summer has already started either.

The sea is the main compromise

At an average of 16°C, the sea is cold rather than merely refreshing. Its April range of 15°C to 17°C means even a warmer year does not usually turn this into a comfortable swimming month. If you enjoy cold water, a dip may appeal, but regular leisurely swims are not a sound basis for choosing April. Time beside the sea is a more realistic focus, with layers to hand when you stop moving. This month makes most sense if you value mild conditions over swimming warmth. For a holiday centred on heat, June, July or August is a better direction.