The temperatures in Thessaloniki in September are comfortable with low of 66°F and and high up to 80°F.
You can expect about 3 to 8 days of rain in Thessaloniki during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Thessaloniki in September 2025.
If you’re planning to visit Thessaloniki in the near future, we highly recommend that you review the 14 day weather forecast for Thessaloniki before you arrive.
Temperatures
80° / 66°
Rainy Days
3
Snowy Days
0
Dry Days
27
Rainfall
2.13
in
Sun Hours
11.4
Hrs
