UV Index
UV Index
Today's UV index in Thessaloniki, Greece 
will be up to 8.2, indicating a very 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: 2025-06-21
With a UV index of 8.2 in Thessaloniki, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.
The UV index in Thessaloniki can reach very high levels during the summer months, often between 8 and 10, making sun exposure intense. In winter, UV levels drop to low or moderate values, typically under 3.
Thessaloniki experiences hot, dry summers with temperatures often above 30°C (86°F) and mild, rainy winters with temperatures around 5-15°C (41-59°F). Spring and autumn are short and pleasant with moderate temperatures and occasional rainfall.
Compared to other parts of Greece, Thessaloniki is cooler and wetter, especially in winter, than southern regions like Athens or Crete. Neighboring countries like North Macedonia and Bulgaria have colder winters and more snowfall due to higher altitude and continental climate.
See the UV index hour by hour for Thessaloniki, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.