Skiathos Town weather by month

When to go to Skiathos Town

For beach weather, look at months where the daytime average clears 25°C and rainy days stay low: July, August. December is the wettest month (110 mm, about 12 rainy days) and June the driest (13 mm). The sea is warmest in August at 26.3°C and coolest in February at 13.7°C.

Getting there

A direct flight from London Gatwick to Skiathos Island National Airport (JSI, 2 km from Skiáthos) takes roughly 3 h 36 min - short-haul (up to 4.5 h) by UK standards. Time-zone: Europe/Athens.

Records and extremes, 1991-2020

The hottest day recorded in Skiathos Town between 1991 and 2020 reached 33.0°C on 27 June 2007; the coldest fell to 0.4°C on 13 February 2004. In August one day in ten tops 28.2°C and about 1% of days pass 30°C; in January one night in ten drops to 6.0°C or below. The wettest single month of the period was October 1994 with 346 mm, against a October average of 74 mm.

Spring: comfortable for walking, cooler for swimming

Spring is better suited to spending time outdoors on land than planning a swimming holiday. March averages 13°C by day and 11°C at night, so bring layers rather than relying on light summer clothes. April becomes brighter, with 7 hours of sunshine and fewer rainy days, but the sea remains cool at 15°C. May makes the clearest shift towards summer: daytime temperatures reach 19°C, sunshine averages 9 hours and rain falls on 4 days. That makes it a good choice for travellers who dislike heat, although an 18°C sea may still feel chilly. Keep a light jacket handy for evenings.

Summer: the strongest choice for sunshine and swimming

June brings a clear change in swimming conditions, with the sea reaching 23°C and daytime temperatures averaging 24°C. It is the driest month, making it a strong choice if you want outdoor plans with less chance of rain. July has the most sunshine, averaging 13 hours, alongside daytime temperatures of 26°C. August is hottest, with days around 27°C and the sea at 26°C. Each summer month averages 2 rainy days, though rain is still possible. Light clothing, sun protection and shade around midday make sense. Nights stay warm, rising from 22°C in June to 25°C in August, so do not expect a sharp evening cool-down.

Autumn and winter: lingering sea warmth, then wetter days

September keeps much of summer's warmth, with daytime and sea temperatures both averaging 24°C, but its 5 rainy days make flexible plans sensible. October is a softer option for travellers who prefer milder days: the air averages 20°C and the sea 21°C, although rain becomes more frequent and sunshine drops to 6 hours. November feels less like swimming weather, with daytime temperatures of 16°C and a cooler sea. December is the wettest month, averaging 12 rainy days, so pack waterproofs and leave room to change outdoor plans. January and February both average 12°C by day and 10°C at night. These months suit travellers content with cool-weather walks rather than warmth; layers matter, and winter is a weak choice if sunshine is the main reason for travelling.