Yes

Based on the weather in Thessaloniki Airport Makedonia (SKG), EO Aerodromiou Thessalonikis, Thessaloniki 551 03, Greece as of December 18, 2017 6:48am local time

Why? Because it's pretty chilly.
Current Conditions
Clear
Temp: 41°F5°C
Wind: 3.7 MPH6 KPH
Precipitation: None