Month guide · Thessaloniki · Greece
Thessaloniki in September
What September is really like in Thessaloniki: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: C messier, CC BY-SA 4.0
Quick answer
September is one of the best months to visit Thessaloniki. Expect average highs of 27°C (81°F), lows of 17°C (63°F), about 4 rainy days and roughly 12.4 hours of daylight. Warm sea, settled weather and the city back at full energy; hotels fill during the international trade fair.
Key facts
- Average high / low
- 27°C (81°F) / 17°C (63°F)
- Rainy days
- About 4
- Daylight
- About 12.4 hours
- Sea temperature
- 24°C (75°F)
- Crowds
- Busy
- Hotel prices
- High
Weather in September
September is the 4th-warmest month in Thessaloniki: days average 27°C (81°F) against a yearly average high of 20°C (68°F), and nights fall to about 17°C (63°F). Rain falls on roughly 4 of its 30 days. Compared with August (31°C (88°F)), September is cooler; by October highs drop to around 21°C (70°F).
- Sunrise (15 September)
- About 07:09
- Sunset (15 September)
- About 19:38
- Daylight
- About 12.4 hours
- Sea
- 24°C (75°F)
Autumn (September–November). Warm sea in September, the international fair, Saint Demetrius celebrations in October and the film festival in November.
Crowds and prices
On a 1–5 scale, September rates 4 for crowds (the peak is September at 4) and 4 for hotel prices (highest in September). Book accommodation early: September is one of the pricier months.
Events in September
- Thessaloniki International Fair (usually early-to-mid September)
Dates move from year to year. Check the organiser’s site before booking travel around an event.
What to do in September
Mild, settled days suit walking, viewpoints and time outdoors.
Historic site · Kamara and Navarinou
Arch of Galerius (Kamara)
Look closely at the lower friezes on the south-facing pier, where the reliefs are best preserved.
- Time needed
- 20 minutes
- Cost
- Free
- Free
- History
- Iconic
- After dark

Landmark · City Centre (Aristotelous Square)
Aristotelous Square
Designed by the French architect Ernest Hébrard after the 1917 fire, the city's grand square opens from Egnatia Street down to the sea between arcaded buildings full of cafés.
- Time needed
- 30 minutes
- Cost
- Free
- Free
- Iconic
- After dark
- Architecture

Religious site · City Centre (Aristotelous Square)
Church of Hagios Demetrios
Do not miss the crypt, reached by stairs near the apse; it is cool and quiet even on hot afternoons.
- Time needed
- 45 minutes
- Cost
- Free
- Free
- History
- Architecture
- Rainy day

Religious site · City Centre (Aristotelous Square)
Hagia Sophia
This 8th-century church, modelled on the great churches of Constantinople, has a mosaic of the Ascension filling its dome, with Christ seated on a rainbow above the apostles.
- Time needed
- 30 minutes
- Cost
- Free
- Free
- History
- Art
- Architecture
The sea averages 24°C (75°F) — warm enough to swim. Best beaches near Thessaloniki.
What to pack
For highs near 27°C, lows near 17°C and 4 wet days: light layers for the day and a light jacket for the evening; comfortable walking shoes.
Is September a good time to visit Thessaloniki?
One of the best months to visit Thessaloniki, with a notable event on the calendar. The other best months are May–June and October. Compare every month.
Thessaloniki in other months
Questions travellers ask
+Is September a good time to visit Thessaloniki?
It is one of the best months to visit Thessaloniki. Warm sea, settled weather and the city back at full energy; hotels fill during the international trade fair.
+How warm is Thessaloniki in September?
Average highs are around 27°C (81°F) and lows around 17°C (63°F).
+Does it rain a lot in Thessaloniki in September?
Expect rain on about 4 days of the month, so it is usually dry.