Thessaloniki weather in September 2025

Expect 81°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Thessaloniki in September. Check more long-term weather averages for Thessaloniki in September before you book your next holiday to Greece in 2025/2026.

  • 81°F maximum daytime temperature in September in Thessaloniki81
    81°F max day temperature
  • 8 hours of sunshine per day
  • 4 days with some rainfall in September in Thessaloniki4
    4 days with some rainfall
  • 59°F minimum night-time temperature in September in Thessaloniki59
    59°F min night temperature
  • 12 hours of daylight per day in September in Thessaloniki12
    12 hours of daylight per day
  • Low heat & humidity in September in ThessalonikiL
    Low heat & humidity
  • 1.1 inches monthly rainfall in September in Thessaloniki1.1
    1.1 inches of monthly rainfall
  • UV (maximum) index 6 (High) in September in Thessaloniki6
    6 (High) UV index
  • 75°F sea temperature in September in Thessaloniki75
    75°F sea temperature

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Thessaloniki by month

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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)

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More about Greece

How hot is it in Thessaloniki in September?

Daytime temperatures usually reach 81°F in Thessaloniki in September with low heat and humidity, falling to 59°F at night.

How sunny is it in Thessaloniki in September?

There are normally 8 hours of bright sunshine each day in Thessaloniki in September - that's 64% of daylight hours.

How warm is the sea around Thessaloniki in September?

The average sea temperature around Thessaloniki in September is 75°F.

Does it rain in Thessaloniki in September?

There are usually 4 days with some rain in Thessaloniki in September and the average monthly rainfall is 1.1 inches.

Thessaloniki September sunrise & sunset times

Browse the sunrise and sunset times for Thessaloniki in September 2025. Select a month to view Thessaloniki sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:55 19:00
Monday, 15th September 2025 06:09 18:37
Tuesday, 30th September 2025 06:24 18:12

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