Weather in Skiathos in April

How April compares

April is the 8th warmest month of the year in Skiathos and ranks 125th of 134 destinations we compare for April - see where else is hot in April. Within Greece it is 42nd of 44 (Greece in April). Against London's average high of 13.5°C in April, Skiathos is 1.8°C warmer by day and 8.2°C warmer at night.

Daytime and night-time in April

The typical April day in Skiathos peaks at 15.3°C, but that is an average: the warmest 10% of days reach 17.6°C or more. Days over 25°C are rare. Nights average 13.3°C; one night in ten drops to 11.1°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 22.9°C (1999-04-30) and the coldest night 6.3°C (2003-04-08).

Rain in April

Some rain (4-8 rainy days): about 6 days with 1 mm or more, 37 mm in total. Year to year it varies a lot - the wettest April was 2020 with 195 mm, the driest 2016 with 2 mm. Humidity averages 76%.

Sea temperature in April

The sea averages 14.7°C - too cold for most (under 18°c). Depending on the year it ranges from 14.1°C to 15.6°C. For the warmest sea here, come in August (26.3°C).

Sunshine and daylight

Around 7.4 hours of sunshine a day (estimated from cloud cover), 13.0 hours of daylight: the sun rises about 06:49 and sets about 20:03 local time in mid-April. Average cloud cover is 43%.

Is April a good time to visit Skiathos?

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

Expect mild afternoons and cool evenings

April’s warmth is modest rather than reliably summery. Average nights fall to 13.3°C, with the coldest nights reaching 11.1°C or lower, so bring a jumper, long trousers and a jacket rather than packing only light holiday clothes. Warmer days can reach 17.6°C or more, making lighter layers useful when the sun is out. Even so, days reaching 25°C account for 0%, so midday heat is not the main concern when planning time outside. Put your longer outdoor plans in the warmer part of the day, then have an extra layer ready for sitting out in the evening. This suits travellers who prefer mild conditions to heat, provided they do not expect every afternoon to feel warm.

Sunshine helps, but the sea stays cold

There is about 7.4 hours of sunshine within 13.0 hours of daylight, giving you useful time outdoors without a guarantee of clear skies throughout the day. Rain falls on about 6 days, so a light waterproof and plans you can move around are more useful than assuming every day will be dry. Swimming is the bigger compromise: the sea averages 14.7°C, with a year-to-year range of 14°C to 16°C. That is cold rather than merely refreshing, and well below the 22°C threshold for comfortable swimming. Do not make long, relaxed sea swims the centre of your plans. April makes more sense for time beside the water, with swimming an optional cold-water dip rather than the reason to book.