Measurements:
°C
°F
Thessaloniki
66°F
S 2 mph
Feels like: 66°F
Precip: 3%
World Resorts Greece Thessaloniki Weather

7 Day Weather Forecast

09.14
mon
DAY
80°F
SE 5 mph
precip
0%
NIGHT
70°F
W 3 mph
precip
4%
09.15
tue
DAY
80°F
NE 5 mph
precip
2%
NIGHT
72°F
SE 2 mph
precip
27%
09.16
wed
DAY
78°F
NE 5 mph
precip
20%
NIGHT
70°F
S 3 mph
precip
4%
09.17
thu
DAY
80°F
NE 6 mph
precip
1%
NIGHT
72°F
S 3 mph
precip
5%
09.18
fri
DAY
82°F
N 6 mph
precip
1%
NIGHT
72°F
S 2 mph
precip
6%
09.19
sat
DAY
82°F
NE 6 mph
precip
8%
NIGHT
72°F
S 4 mph
precip
4%
09.20
sun
DAY
86°F
NE 2 mph
precip
9%
NIGHT
74°F
S 4 mph
precip
17%

Thessaloniki Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Thessaloniki was 25.8°F. The maximum and minimum values were 24.3°F and 27.0°F respectively.

Thessaloniki on the Weather Map

Best Time to Visit Thessaloniki
The most sunny months:
July 28 days
August 26 days
September 24 days
The most warm months:
July 95.4 °F
August 94.8 °F
June 88.4 °F
Warmest sea temperature:
August 84.9 °F
July 83.4 °F
September 80.7 °F
The most cold months:
January 47.4 °F
December 50.9 °F
February 52.4 °F
The most rainy months:
May 3 days
November 3 days
March 3 days
The most windy months:
July 6 mph
April 6 mph
May 6 mph