UV Index
UV Index
Today's UV index in Skiathos, Greece 
will be up to 6.9, indicating a high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-09
With Skiathos's UV index reaching 6.9, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
The UV index in Skiathos is highest in the summer months, often reaching levels around 8 to 10, indicating strong sun exposure. During winter, the UV index drops to low levels around 1 to 3.
Skiathos experiences warm, dry summers with temperatures often above 30°C (86°F) and mild, wetter winters with temperatures usually around 10 to 15°C (50 to 59°F). Spring and autumn are moderate with pleasant weather and less rain.
Compared to mainland Greece, Skiathos has milder winters and cooler summers because it's an island. Neighboring countries like Turkey and Bulgaria generally have more extreme summer heat and colder winters than Skiathos does.
See the UV index hour by hour for Skiathos, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.