Weather in Thessaloniki in October 2025
Average weather
Average temperature in Thessaloniki in October
The expected average maximum temperature in October is +25°C with a maximum of +30°C and a minimum of +13°C.
The average maximum temperature goes down 41% by the end of the month, compared with the beginning of the month, from +30°C to +23°C.
Is Thessaloniki warm or cold in October?
Thessaloniki is typically mild in October.
Maximum temperatures go down compared to the previous month from +27°C to +21°C. The minimum temperature also goes down from +18°C to +13°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how October is compared to other months in Thessaloniki:
Water temperature in Thessaloniki in October
Water in Thessaloniki in October is Comfortable. It varies from +19°C to +23°C, with an average of +21°C. This is almost similar to the air temperature, which averages +21°C.
In October, water temperatures are average relative to the rest of the year:
Can you swim in Thessaloniki in October?
Climate in Thessaloniki in October
| September | October | November | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +27°C | +21°C | +15°C | ||||
| Min. temperature | ||||||
| +10°C | +3°C | -3°C | ||||
| Max. temperature | ||||||
| +36°C | +32°C | +26°C | ||||
| Rainfall | ||||||
| 49 mm | 66 mm | 75 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +25°C | +21°C | +18°C | ||||
| Humidity | ||||||
| 61% | 69% | 74% | ||||
| Air pressure | ||||||
| 1015 HPa | 1018 HPa | 1018 HPa | ||||
| Sunny days | ||||||
| 16 | 11 | 8 | ||||
| Cloudy days | ||||||
| 4 | 9 | 9 | ||||
| Rainy days | ||||||
| 7 | 10 | 13 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
October typically has worse weather conditions compared to September. It’s getting colder in October. From +27°C in the day, the average maximum temperature lowers to +21°C. Prepare for more rain. Average rainfall goes from 49 mm to 66 mm. Humidity rises from 61% to 69%. The average wind speed doesn’t change much during October, staying around 2 m/s. The days becoming less sunny, going from 16 sunny days in September to 11 in October.
Next month (November) brings a further decline in the weather.
Wind
The average wind speed is 2 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Thessaloniki is gradually decreasing during October, going from 4 m/s to 1 m/s over the course of the month.
Rain
How was the weather last October in Thessaloniki?
Climate Change over Years
The climate in Thessaloniki in October has not changed much over the last 43 years.
The average temperature was the lowest in 1991 (+18°C) and the highest in 2013 (+23°C). The driest year was 1989 with only 258 mm of rainfall, and the wettest year was 2020 with 1565 mm.
FAQ
Is October a good time to visit Thessaloniki?
Can you sunbathe in Thessaloniki in October?
Can you swim in Thessaloniki in October?
Is Thessaloniki rainy in October?
Is it sunny in Thessaloniki in October?
Other cities in Greece
Monthly weather in Thessaloniki
Source of the data
For this page, we’ve looked at the typical weather in Thessaloniki, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.