Thessaloniki weather, is having influences from the Mediterranean climate and also from the continental. The winter is cold with lot’s of humidity and in the early morning hours fog or strong winds are a usual phenomenon. The summer is very warm with clear sunny sky and humidity as well but less strong winds. The majority of the days all year long in Thessaloniki are sunny. Winter snow is a rare phenomenon inside the city but a usual one few km away from it. It does not though last long (max. a couple of days and then it melts). Rainy days are more common in the winter period and less often in the middle of the summer.
Below you can find more detailed info about Thessaloniki climate. The info is based on the HNMS, Hellenic National Meteorological Service.