Measurements:
°C
°F
Thessaloniki
52°F
S 4 mph
Feels like: 52°F
Precip: 100%
World Resorts Greece Thessaloniki Weather September Weather in Thessaloniki

Thessaloniki Weather: September

Average Day Temperature: 85.1°F
Average Night Temperature: 67.6°F
Sea Water Temperature: 80.7°F
Number of Sunny Days: 24 days
Sunshine Hours: 11.8 - 13.1 hours
Number of Rainy Days: 2 days
Precipitation Totals: 1.0 in

Air Temperature in September, °F

Select Year: 2025 2024 2023

The highest day temperature in September 2025 was 95°F. The lowest night temperature was 60°F. The average values for day and night temperatures during September were 84.9°F и 69.4°F respectivly.

Thessaloniki Water Sea Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Thessaloniki was 81.7°F. The maximum and minimum values were 78.6°F and 84.0°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Thessaloniki is 1.0 in. It makes september one of the least rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 5.7 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Thessaloniki in September is 10.1 hours.

Best Time to Visit Thessaloniki
The most sunny months:
July 28 days
August 26 days
September 24 days
The most warm months:
July 95.5 °F
August 94.8 °F
June 88.5 °F
Warmest sea temperature:
August 84.8 °F
July 83.3 °F
September 80.7 °F
The most cold months:
January 47.4 °F
December 50.8 °F
February 52.4 °F
The most rainy months:
March 4 days
May 3 days
November 3 days
The most windy months:
July 6 mph
June 6 mph
April 6 mph

Thessaloniki on the Weather Map

Greece Resorts:
NAME
Athenes +60
Athos +58
Bali Gr +62
Chalkidiki +60
Chania +54
Corfu +56
Crete +56
Hanioti +58
Heraklion +62
Hersonissos +58
Paralia Katerini +52
Rhodes +64
Santorini +68
Thasos +62
Thessaloniki +52
24 Hours Weather Forecast
Thessaloniki
Local time: 06:35
05 dec, friday
0900 52°F
S
9 mph
1200 54°F
SW
14 mph
1500 54°F
W
14 mph
1800 54°F
W
12 mph
2100 54°F
SW
16 mph
06 dec, saturday
0000 54°F
SW
14 mph
0300 54°F
S
9 mph
0600 52°F
S
9 mph