Thessaloniki weather in September 2026

Q: How hot is it in Thessaloniki in September?

Daytime temperatures usually reach 28°C in Thessaloniki in September with moderate heat and humidity, falling to 18°C at night.

Q: How sunny is it in Thessaloniki in September?

There are normally 9 hours of bright sunshine each day in Thessaloniki in September - that's 76% of daylight hours.

Q: How warm is the sea around Thessaloniki in September?

The average sea temperature around Thessaloniki in September is 25°C.

Q: Does it ever rain in Thessaloniki in September?

There are usually 2 days with some rain in Thessaloniki in September and the average monthly rainfall is 13mm.

Expect daytime maximum temperatures of 81°F in Thessaloniki, Greece in September based on long-term weather averages. There are 8 hours of sunshine per day on average.

81
81°F max day temperature
8
8 hours of sunshine per day
4
4 days with some rainfall
59
59°F min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
1.1
1.1 inches of monthly rainfall
6
6 (High) UV index
75
75°F sea temperature

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The September weather guide for Greece (Thessaloniki) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

More about Greece

How hot is it in Thessaloniki in September?

Daytime temperatures usually reach 82°F in Thessaloniki in September with moderate heat and humidity, falling to 64°F at night.

How sunny is it in Thessaloniki in September?

There are normally 9 hours of bright sunshine each day in Thessaloniki in September - that's 76% of daylight hours.

How warm is the sea around Thessaloniki in September?

The average sea temperature around Thessaloniki in September is 77°F.

Does it ever rain in Thessaloniki in September?

There are usually 2 days with some rain in Thessaloniki in September and the average monthly rainfall is 0.5 inches.

Thessaloniki September sunrise & sunset times

Browse the sunrise and sunset times for Thessaloniki in September 2026. Select a month to view Thessaloniki sunrise and sunset times for the next 12 months.

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