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September weather forecast in Thessaloniki

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

31 August, sun

	758 mmHg		56%
	3.5 m/s		+27

31 August, Sunday. day, 31°; night, 19°; partly cloudy

1 September, mon

	758 mmHg		58%
	3.8 m/s		+27

1 September, Monday. day, 31°; night, 19°; clear

2 September, tue

	758 mmHg		58%
	2.9 m/s		+27

2 September, Tuesday. day, 31°; night, 19°; clear

3 September, wed

	759 mmHg		58%
	3.2 m/s		+27

3 September, Wednesday. day, 30°; night, 18°; clear

4 September, thu

	759 mmHg		58%
	3.4 m/s		+27

4 September, Thursday. day, 30°; night, 19°; clear

5 September, fri

	758 mmHg		60%
	3.4 m/s		+27

5 September, Friday. day, 30°; night, 18°; clear

6 September, sat

	758 mmHg		60%
	3.6 m/s		+27

6 September, Saturday. day, 29°; night, 18°; partly cloudy

7 September, sun

	759 mmHg		61%
	3.2 m/s		+27

7 September, Sunday. day, 28°; night, 18°; rain

8 September, mon

	759 mmHg		61%
	3.3 m/s		+27

8 September, Monday. day, 29°; night, 17°; clear

9 September, tue

	759 mmHg		58%
	3.2 m/s		+26

9 September, Tuesday. day, 29°; night, 18°; partly cloudy

10 September, wed

	759 mmHg		61%
	3.1 m/s		+26

10 September, Wednesday. day, 29°; night, 18°; clear

11 September, thu

	759 mmHg		61%
	3.2 m/s		+26

11 September, Thursday. day, 29°; night, 17°; clear

12 September, fri

	759 mmHg		61%
	3.2 m/s		+27

12 September, Friday. day, 29°; night, 17°; clear

13 September, sat

	759 mmHg		58%
	3.2 m/s		+26

13 September, Saturday. day, 29°; night, 17°; clear

14 September, sun

	759 mmHg		61%
	3 m/s		+26

14 September, Sunday. day, 29°; night, 17°; clear

15 September, mon

	759 mmHg		62%
	3 m/s		+26

15 September, Monday. day, 29°; night, 16°; clear

16 September, tue

	759 mmHg		61%
	3.3 m/s		+26

16 September, Tuesday. day, 29°; night, 16°; clear

17 September, wed

	758 mmHg		65%
	3 m/s		+26

17 September, Wednesday. day, 28°; night, 17°; clear

18 September, thu

	759 mmHg		64%
	3.1 m/s		+26

18 September, Thursday. day, 28°; night, 17°; clear

19 September, fri

	759 mmHg		66%
	3.1 m/s		+25

19 September, Friday. day, 27°; night, 17°; rain

20 September, sat

	759 mmHg		63%
	3.6 m/s		+24

20 September, Saturday. day, 27°; night, 17°; rain

21 September, sun

	760 mmHg		64%
	3.3 m/s		+24

21 September, Sunday. day, 25°; night, 16°; rain

22 September, mon

	760 mmHg		63%
	3.2 m/s		+25

22 September, Monday. day, 26°; night, 15°; partly cloudy

23 September, tue

	760 mmHg		63%
	3.2 m/s		+24

23 September, Tuesday. day, 26°; night, 14°; clear

24 September, wed

	759 mmHg		65%
	2.9 m/s		+24

24 September, Wednesday. day, 26°; night, 14°; partly cloudy

25 September, thu

	759 mmHg		66%
	3 m/s		+24

25 September, Thursday. day, 26°; night, 15°; overcast

26 September, fri

	759 mmHg		67%
	3 m/s		+24

26 September, Friday. day, 25°; night, 16°; rain

27 September, sat

	760 mmHg		65%
	3.3 m/s		+23

27 September, Saturday. day, 25°; night, 15°; rain

28 September, sun

	760 mmHg		67%
	2.8 m/s		+24

28 September, Sunday. day, 25°; night, 15°; partly cloudy

29 September, mon

	760 mmHg		65%
	3.1 m/s		+24

29 September, Monday. day, 25°; night, 15°; partly cloudy

30 September, tue

	761 mmHg		64%
	2.9 m/s		+24

30 September, Tuesday. day, 25°; night, 14°; clear

1 October, wed

	760 mmHg		65%
	3 m/s		+23

1 October, Wednesday. day, 25°; night, 14°; clear

2 October, thu

	761 mmHg		67%
	3 m/s		+23

2 October, Thursday. day, 25°; night, 14°; clear

3 October, fri

	761 mmHg		70%
	2.9 m/s		+23

3 October, Friday. day, 25°; night, 14°; clear

4 October, sat

	761 mmHg		68%
	2.8 m/s		+23

4 October, Saturday. day, 25°; night, 14°; clear

Average data for 10 years

Thessaloniki September

17

sunny days

6

days with precipitation

2

cloudy days

17 sunny days; 6 days with precipitation; 2 cloudy days;

62

%

air humidity

1.8

m/s

WindS

36

mm of precipitation

(7% of annual average)

+26

°C

Water temperature

air humidity 62%; 36 millimeters of precipitation (7% of annual average); Wind southerly 1.8 Meters per second; Water temperature +26°

Weather graphs for September

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

SW

S

S

SW

S

SW

S

S

SW

S

S

SW

S

S

S

S

SE

S

S

S

SW

S

S

S

S

S

S

S

S

S

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Athens
Sofia
Bansko
Tirana
Pamporovo
Kerkyra
Mykonos
Nish
Montana

Cities with similar weather in September

Kemer
Barcelona
Rome
Baku
Salou
Naples
Gudauta
Bar
Palermo

The weather forecast for September 2025 is based on historical data from the past 10 years.

In September, the weather in Thessaloniki is typically hot. Average daily high temperature in September is about 28 degrees above zero. On average, Thessaloniki has 17 sunny, 6 rainy, 6 partly cloudy, and 1 cloudy day in September. The rains are usually moderate.

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