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September

Thessaloniki Weather in September with Sea Temperature

September weather in Thessaloniki includes average daytime air +28°C, nighttime +19°C, average sea temperature +26°C. Daily water temperatures usually range from +23°C to +27°C, which is comfortable for swimming and beach planning. The tables below also show air temperature, wind, rain and humidity; for near-term water data, open the current 30-day water temperature forecast.

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Averaged values across several years

Daily air temperature for the month

Day Night

Daily sea water temperature for the month

Water

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Mon	+32°C	+21°C	+27°C	2 m/s	0 mm	47%
2Tue	+32°C	+21°C	+27°C	3 m/s	0.4 mm	43%
3Wed	+32°C	+21°C	+27°C	2 m/s	0 mm	47%
4Thu	+30°C	+21°C	+27°C	3 m/s	0.5 mm	51%
5Fri	+29°C	+20°C	+27°C	2 m/s	2.3 mm	56%
6Sat	+29°C	+20°C	+27°C	2 m/s	0.1 mm	57%
7Sun	+29°C	+20°C	+27°C	2 m/s	0.1 mm	54%
8Mon	+29°C	+19°C	+27°C	2 m/s	0.4 mm	57%
9Tue	+29°C	+20°C	+26°C	2 m/s	0.2 mm	54%
10Wed	+29°C	+20°C	+26°C	2 m/s	0.2 mm	54%
11Thu	+29°C	+20°C	+26°C	3 m/s	0 mm	52%
12Fri	+30°C	+20°C	+27°C	2 m/s	0.1 mm	50%
13Sat	+29°C	+20°C	+26°C	2 m/s	0 mm	49%
14Sun	+30°C	+19°C	+26°C	2 m/s	0 mm	42%
15Mon	+30°C	+19°C	+26°C	2 m/s	0 mm	44%
16Tue	+29°C	+20°C	+26°C	2 m/s	0 mm	51%
17Wed	+29°C	+20°C	+26°C	2 m/s	0 mm	52%
18Thu	+28°C	+19°C	+26°C	2 m/s	0.3 mm	54%
19Fri	+27°C	+18°C	+25°C	2 m/s	0 mm	53%
20Sat	+27°C	+17°C	+24°C	2 m/s	0.3 mm	55%
21Sun	+26°C	+17°C	+24°C	2 m/s	0.1 mm	54%
22Mon	+25°C	+17°C	+25°C	2 m/s	0 mm	58%
23Tue	+26°C	+16°C	+24°C	2 m/s	0 mm	54%
24Wed	+27°C	+17°C	+24°C	2 m/s	0.4 mm	54%
25Thu	+27°C	+18°C	+24°C	2 m/s	0.4 mm	53%
26Fri	+26°C	+17°C	+24°C	2 m/s	0 mm	57%
27Sat	+26°C	+18°C	+23°C	2 m/s	0 mm	51%
28Sun	+26°C	+18°C	+24°C	2 m/s	0.1 mm	57%
29Mon	+25°C	+17°C	+24°C	2 m/s	0.1 mm	58%
30Tue	+24°C	+17°C	+24°C	3 m/s	0.2 mm	54%

Sea water temperature by months

Water +26°C

Day and night air temperature

Day +28°C Night +19°C

Weather highs and lows in Thessaloniki for september

Warmest day: 1 september, +32°C
Coldest night: 23 september, +16°C
Max precipitation: 5 september, 2.3 mm
Warmest sea water: 1 september, +27°C
Coldest sea water: 27 september, +23°C

Climate in Thessaloniki in september

Average daytime temperature: +28°C
Average nighttime temperature: +19°C
Sea water temperature: —
Precipitation (monthly average): 6.3 mm
Days with precipitation: 1.6
Humidity: 52%
Wind: 2 m/s
Data: 7 years / coverage 100%

Daily air temperature for the month

Day Night

Daily sea water temperature for the month

Water

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Mon	+32°C	+20°C	+27°C	3-5 m/s, NW	0 mm	44%
2Tue	+33°C	+21°C	+27°C	2-4 m/s, SW	0 mm	37%
3Wed	+33°C	+23°C	+27°C	2-4 m/s, SSW	0 mm	41%
4Thu	+32°C	+21°C	+27°C	2-4 m/s, WSW	0 mm	44%
5Fri	+33°C	+22°C	+27°C	2-5 m/s, W	0 mm	43%
6Sat	+33°C	+21°C	+27°C	2-5 m/s, W	0 mm	43%
7Sun	+32°C	+20°C	+27°C	3-5 m/s, WNW	0 mm	49%
8Mon	+31°C	+19°C	+27°C	3-6 m/s, WSW	0 mm	53%
9Tue	+30°C	+21°C	+26°C	3-4 m/s, SSW	0 mm	53%
10Wed	+31°C	+20°C	+26°C	2-4 m/s, SSW	0 mm	50%
11Thu	+32°C	+21°C	+26°C	2-3 m/s, SSW	0.1 mm	44%
12Fri	+31°C	+21°C	+27°C	2-5 m/s, SSW	0.6 mm	58%
13Sat	+29°C	+21°C	+26°C	2-5 m/s, SSW	0 mm	64%
14Sun	+28°C	+20°C	+26°C	2-4 m/s, SSW	0 mm	60%
15Mon	+31°C	+20°C	+26°C	2-4 m/s, NW	0 mm	59%
16Tue	+29°C	+20°C	+26°C	2-4 m/s, SSW	0 mm	62%
17Wed	+29°C	+20°C	+26°C	4-10 m/s, NNW	0 mm	56%
18Thu	+28°C	+16°C	+26°C	4-5 m/s, NNW	0 mm	40%
19Fri	+27°C	+15°C	+25°C	2-4 m/s, WNW	0 mm	38%
20Sat	+29°C	+17°C	+24°C	2-4 m/s, WSW	0 mm	42%
21Sun	+29°C	+19°C	+24°C	2-3 m/s, SW	0 mm	44%
22Mon	+28°C	+18°C	+25°C	2-4 m/s, SSW	0 mm	56%
23Tue	+29°C	+17°C	+24°C	2-3 m/s, SSW	0 mm	54%
24Wed	+29°C	+17°C	+24°C	2 m/s, SSW	0 mm	56%
25Thu	+28°C	+19°C	+24°C	3-4 m/s, S	0 mm	50%
26Fri	+23°C	+17°C	+24°C	3-4 m/s, S	0 mm	62%
27Sat	+21°C	+17°C	+23°C	2 m/s, SSE	0 mm	51%
28Sun	+21°C	+16°C	+24°C	2-3 m/s, S	0 mm	58%
29Mon	+22°C	+15°C	+24°C	2-3 m/s, WSW	0 mm	66%
30Tue	+22°C	+15°C	+24°C	2-3 m/s, SW	1.2 mm	73%

Weather highs and lows in Thessaloniki for september

Warmest day: 2 september, +33°C
Coldest night: 19 september, +15°C
Max precipitation: 30 september, 1.2 mm
Warmest water: 1 september, +27°C
Coldest water: 27 september, +23°C

Climate in Thessaloniki in september

Year: 2025
Average daytime temperature: +29°C
Average nighttime temperature: +19°C
Water temperature: +26°C
Precipitation (month): 1.9 mm
Days with precipitation: 1
Humidity: 52%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Sun	+32°C	+20°C	—	2 m/s, NNW	0 mm	47%
2Mon	+33°C	+21°C	—	2-5 m/s, NW	0 mm	40%
3Tue	+33°C	+22°C	—	2-4 m/s, WSW	0 mm	50%
4Wed	+34°C	+24°C	—	1-2 m/s, SW	0.4 mm	46%
5Thu	+32°C	+22°C	—	2-3 m/s, SSW	0 mm	48%
6Fri	+32°C	+22°C	—	2-4 m/s, SSW	0 mm	53%
7Sat	+31°C	+21°C	—	2 m/s, SSW	0 mm	60%
8Sun	+28°C	+20°C	—	3-5 m/s, SSW	0 mm	67%
9Mon	+29°C	+21°C	—	3-5 m/s, S	0 mm	58%
10Tue	+26°C	+19°C	—	2-3 m/s, S	1.3 mm	67%
11Wed	+26°C	+18°C	—	5-6 m/s, NNW	0 mm	59%
12Thu	+29°C	+19°C	—	2-3 m/s, SW	0 mm	54%
13Fri	+30°C	+20°C	—	2-4 m/s, SSW	0 mm	58%
14Sat	+28°C	+19°C	—	2-4 m/s, W	0 mm	46%
15Sun	+25°C	+15°C	—	3-4 m/s, WNW	0 mm	43%
16Mon	+25°C	+17°C	—	3-4 m/s, NNW	0 mm	48%
17Tue	+24°C	+17°C	—	2-3 m/s, SSW	0.1 mm	58%
18Wed	+18°C	+16°C	—	2-3 m/s, NW	2.2 mm	83%
19Thu	+24°C	+16°C	—	2 m/s, SSW	0.1 mm	66%
20Fri	+25°C	+18°C	—	2 m/s, SSW	0.1 mm	63%
21Sat	+25°C	+17°C	—	2-3 m/s, NW	0.3 mm	64%
22Sun	+25°C	+17°C	—	1-3 m/s, WNW	0 mm	59%
23Mon	+26°C	+17°C	—	2-3 m/s, WSW	0 mm	48%
24Tue	+25°C	+17°C	—	2-3 m/s, SSW	0 mm	50%
25Wed	+27°C	+19°C	—	2-3 m/s, SSW	0 mm	53%
26Thu	+29°C	+20°C	—	2-3 m/s, W	0 mm	57%
27Fri	+29°C	+20°C	—	2 m/s, SSW	0 mm	56%
28Sat	+29°C	+20°C	—	1-2 m/s, SW	0 mm	55%
29Sun	+26°C	+14°C	—	5-10 m/s, NNW	0 mm	52%
30Mon	+21°C	+13°C	—	10-11 m/s, NNW	0 mm	42%

Weather highs and lows in Thessaloniki for september

Warmest day: 4 september, +34°C
Coldest night: 30 september, +13°C
Max precipitation: 18 september, 2.2 mm
Warmest water: —
Coldest water: —

Climate in Thessaloniki in september

Year: 2024
Average daytime temperature: +28°C
Average nighttime temperature: +19°C
Water temperature: —
Precipitation (month): 4.5 mm
Days with precipitation: 2
Humidity: 55%
Wind: 3 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Fri	+32°C	+22°C	—	2 m/s, SSW	0 mm	42%
2Sat	+33°C	+23°C	—	2 m/s, WSW	0 mm	42%
3Sun	+33°C	+22°C	—	2-4 m/s, W	0.1 mm	42%
4Mon	+23°C	+16°C	—	3-4 m/s, NNW	2.5 mm	66%
5Tue	+25°C	+16°C	—	4-5 m/s, E	0.9 mm	74%
6Wed	+26°C	+18°C	—	3-5 m/s, E	0.3 mm	70%
7Thu	+27°C	+20°C	—	2 m/s, S	0.1 mm	59%
8Fri	+28°C	+19°C	—	2 m/s, S	0 mm	61%
9Sat	+29°C	+20°C	—	2-4 m/s, WSW	0 mm	52%
10Sun	+31°C	+19°C	—	2-4 m/s, WNW	0 mm	43%
11Mon	+28°C	+18°C	—	3-4 m/s, SW	0 mm	51%
12Tue	+28°C	+18°C	—	2-3 m/s, SSW	0 mm	52%
13Wed	+29°C	+19°C	—	2-4 m/s, SSW	0 mm	50%
14Thu	+30°C	+19°C	—	2-3 m/s, SSW	0 mm	51%
15Fri	+30°C	+19°C	—	2-3 m/s, SSW	0 mm	50%
16Sat	+29°C	+20°C	—	2-4 m/s, SSW	0 mm	50%
17Sun	+29°C	+20°C	—	2-3 m/s, SSW	0 mm	49%
18Mon	+26°C	+19°C	—	2-4 m/s, SSW	0 mm	60%
19Tue	+27°C	+18°C	—	2-3 m/s, SW	0 mm	60%
20Wed	+29°C	+20°C	—	2-3 m/s, SSW	0 mm	54%
21Thu	+29°C	+20°C	—	1-3 m/s, SSW	0 mm	61%
22Fri	+31°C	+20°C	—	2-3 m/s, SSW	0 mm	55%
23Sat	+33°C	+21°C	—	2-3 m/s, SSW	0 mm	53%
24Sun	+31°C	+22°C	—	2-4 m/s, S	0.2 mm	51%
25Mon	+29°C	+20°C	—	2-4 m/s, ESE	2.6 mm	51%
26Tue	+29°C	+18°C	—	2 m/s, S	0 mm	50%
27Wed	+27°C	+19°C	—	1-2 m/s, E	0 mm	43%
28Thu	+27°C	+18°C	—	2-3 m/s, SSW	0 mm	46%
29Fri	+28°C	+18°C	—	2-3 m/s, W	0 mm	48%
30Sat	+29°C	+19°C	—	2-3 m/s, NW	0 mm	42%

Weather highs and lows in Thessaloniki for september

Warmest day: 2 september, +33°C
Coldest night: 4 september, +16°C
Max precipitation: 25 september, 2.6 mm
Warmest water: —
Coldest water: —

Climate in Thessaloniki in september

Year: 2023
Average daytime temperature: +29°C
Average nighttime temperature: +19°C
Water temperature: —
Precipitation (month): 6.7 mm
Days with precipitation: 2
Humidity: 53%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Thu	+32°C	+21°C	—	2 m/s, WNW	0.2 mm	51%
2Fri	+28°C	+21°C	—	2-3 m/s, W	2.9 mm	57%
3Sat	+31°C	+19°C	—	2-3 m/s, NNW	0 mm	60%
4Sun	+28°C	+21°C	—	2-4 m/s, SSW	0.2 mm	66%
5Mon	+24°C	+19°C	—	1-3 m/s, S	15.1 mm	78%
6Tue	+26°C	+19°C	—	2-3 m/s, SW	0.1 mm	66%
7Wed	+26°C	+19°C	—	2-3 m/s, SSW	0.3 mm	62%
8Thu	+27°C	+18°C	—	2 m/s, SSW	0 mm	59%
9Fri	+29°C	+19°C	—	2-3 m/s, SSW	0 mm	59%
10Sat	+30°C	+20°C	—	1-2 m/s, SSW	0 mm	56%
11Sun	+31°C	+21°C	—	2-3 m/s, NNW	0 mm	52%
12Mon	+29°C	+19°C	—	5-6 m/s, NNW	0 mm	46%
13Tue	+28°C	+17°C	—	3-5 m/s, NNW	0 mm	41%
14Wed	+28°C	+17°C	—	2 m/s, SSW	0 mm	38%
15Thu	+31°C	+19°C	—	1-2 m/s, SSW	0 mm	46%
16Fri	+33°C	+21°C	—	2 m/s, SSW	0 mm	49%
17Sat	+32°C	+21°C	—	2-3 m/s, SSW	0 mm	50%
18Sun	+27°C	+17°C	—	4-7 m/s, WNW	0 mm	52%
19Mon	+24°C	+14°C	—	3-4 m/s, SSW	0 mm	50%
20Tue	+24°C	+14°C	—	3-4 m/s, WNW	0 mm	56%
21Wed	+20°C	+15°C	—	2-3 m/s, ESE	0.4 mm	50%
22Thu	+22°C	+12°C	—	3 m/s, NNW	0 mm	51%
23Fri	+20°C	+12°C	—	2 m/s, SSE	0 mm	55%
24Sat	+24°C	+13°C	—	2-3 m/s, SW	0 mm	43%
25Sun	+24°C	+13°C	—	2-3 m/s, S	0 mm	54%
26Mon	+25°C	+14°C	—	2 m/s, SSW	0 mm	55%
27Tue	+24°C	+18°C	—	2-3 m/s, SSE	0.1 mm	64%
28Wed	+28°C	+17°C	—	2-3 m/s, W	0 mm	58%
29Thu	+28°C	+18°C	—	2-3 m/s, SSW	0 mm	53%
30Fri	+29°C	+18°C	—	2 m/s, SSW	0 mm	52%

Weather highs and lows in Thessaloniki for september

Warmest day: 16 september, +33°C
Coldest night: 22 september, +12°C
Max precipitation: 5 september, 15.1 mm
Warmest water: —
Coldest water: —

Climate in Thessaloniki in september

Year: 2022
Average daytime temperature: +27°C
Average nighttime temperature: +18°C
Water temperature: —
Precipitation (month): 19.3 mm
Days with precipitation: 2
Humidity: 54%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Wed	+32°C	+19°C	—	2-3 m/s, NW	0 mm	56%
2Thu	+31°C	+19°C	—	5-6 m/s, NNW	0 mm	34%
3Fri	+28°C	+17°C	—	3-5 m/s, SW	0 mm	45%
4Sat	+28°C	+18°C	—	2-4 m/s, SSW	0.5 mm	56%
5Sun	+27°C	+18°C	—	2 m/s, WSW	0.1 mm	62%
6Mon	+27°C	+17°C	—	2-3 m/s, WSW	0 mm	63%
7Tue	+27°C	+18°C	—	2-3 m/s, E	0 mm	40%
8Wed	+24°C	+17°C	—	2-3 m/s, WNW	2.7 mm	50%
9Thu	+25°C	+17°C	—	1-3 m/s, SW	1.2 mm	52%
10Fri	+27°C	+18°C	—	2-4 m/s, WSW	0 mm	50%
11Sat	+28°C	+18°C	—	2-5 m/s, SSW	0 mm	50%
12Sun	+29°C	+19°C	—	2-3 m/s, WSW	0 mm	53%
13Mon	+29°C	+19°C	—	2 m/s, N	0 mm	46%
14Tue	+32°C	+19°C	—	2-4 m/s, N	0 mm	37%
15Wed	+31°C	+20°C	—	2-3 m/s, SW	0 mm	34%
16Thu	+31°C	+20°C	—	2-4 m/s, SSW	0 mm	41%
17Fri	+32°C	+20°C	—	2-3 m/s, SSW	0 mm	48%
18Sat	+33°C	+21°C	—	2-3 m/s, WNW	0 mm	46%
19Sun	+32°C	+21°C	—	2 m/s, SSW	0 mm	48%
20Mon	+33°C	+21°C	—	2-3 m/s, W	0 mm	52%
21Tue	+30°C	+20°C	—	2-3 m/s, NNW	0 mm	51%
22Wed	+21°C	+16°C	—	2-4 m/s, SSW	0.3 mm	72%
23Thu	+23°C	+12°C	—	5-7 m/s, NNW	0 mm	42%
24Fri	+25°C	+13°C	—	2 m/s, W	0 mm	43%
25Sat	+30°C	+15°C	—	2 m/s, NW	0 mm	40%
26Sun	+30°C	+16°C	—	2 m/s, SW	0 mm	40%
27Mon	+30°C	+17°C	—	2 m/s, SSW	0 mm	43%
28Tue	+24°C	+18°C	—	2 m/s, NNW	0.9 mm	62%
29Wed	+20°C	+18°C	—	2-3 m/s, SE	0.5 mm	71%
30Thu	+18°C	+16°C	—	1-2 m/s, ENE	0 mm	62%

Weather highs and lows in Thessaloniki for september

Warmest day: 18 september, +33°C
Coldest night: 23 september, +12°C
Max precipitation: 8 september, 2.7 mm
Warmest water: —
Coldest water: —

Climate in Thessaloniki in september

Year: 2021
Average daytime temperature: +28°C
Average nighttime temperature: +18°C
Water temperature: —
Precipitation (month): 6.2 mm
Days with precipitation: 2
Humidity: 50%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Tue	+34°C	+25°C	—	2-4 m/s, SSW	0 mm	40%
2Wed	+33°C	+22°C	—	3-4 m/s, NW	0 mm	48%
3Thu	+33°C	+23°C	—	2-3 m/s, WSW	0 mm	44%
4Fri	+31°C	+23°C	—	5-6 m/s, NNW	0 mm	41%
5Sat	+30°C	+20°C	—	3-4 m/s, W	0 mm	37%
6Sun	+30°C	+21°C	—	2-4 m/s, SSW	0 mm	44%
7Mon	+31°C	+21°C	—	2-3 m/s, SSW	0 mm	49%
8Tue	+34°C	+23°C	—	2-3 m/s, WNW	0 mm	42%
9Wed	+33°C	+24°C	—	2-3 m/s, WNW	0 mm	41%
10Thu	+31°C	+23°C	—	2-4 m/s, WSW	0 mm	50%
11Fri	+31°C	+22°C	—	2-4 m/s, W	0 mm	47%
12Sat	+32°C	+22°C	—	2-4 m/s, SW	0 mm	40%
13Sun	+31°C	+23°C	—	2-4 m/s, SW	0 mm	41%
14Mon	+32°C	+23°C	—	2 m/s, NE	0 mm	34%
15Tue	+31°C	+22°C	—	2-3 m/s, SE	0 mm	34%
16Wed	+29°C	+22°C	—	2-3 m/s, SSW	0 mm	49%
17Thu	+28°C	+21°C	—	2-3 m/s, SSW	0 mm	53%
18Fri	+30°C	+21°C	—	2-4 m/s, ESE	0 mm	49%
19Sat	+27°C	+20°C	—	3-4 m/s, S	0 mm	50%
20Sun	+24°C	+17°C	—	2-4 m/s, SSW	0 mm	54%
21Mon	+25°C	+17°C	—	2-4 m/s, SSW	0 mm	53%
22Tue	+26°C	+18°C	—	2-4 m/s, SSW	0 mm	58%
23Wed	+27°C	+18°C	—	2-4 m/s, S	0 mm	61%
24Thu	+28°C	+20°C	—	2 m/s, W	0 mm	65%
25Fri	+29°C	+20°C	—	2-5 m/s, SSW	0 mm	50%
26Sat	+24°C	+18°C	—	4-6 m/s, S	0.1 mm	64%
27Sun	+25°C	+17°C	—	3-4 m/s, SW	0 mm	47%
28Mon	+26°C	+19°C	—	3-4 m/s, WSW	0.1 mm	60%
29Tue	+26°C	+18°C	—	2-4 m/s, WNW	0 mm	51%
30Wed	+24°C	+16°C	—	4-6 m/s, NNW	0 mm	44%

Weather highs and lows in Thessaloniki for september

Warmest day: 1 september, +34°C
Coldest night: 30 september, +16°C
Max precipitation: 26 september, 0.1 mm
Warmest water: —
Coldest water: —

Climate in Thessaloniki in september

Year: 2020
Average daytime temperature: +29°C
Average nighttime temperature: +21°C
Water temperature: —
Precipitation (month): 0.2 mm
Days with precipitation: 0
Humidity: 48%
Wind: 2 m/s

Daily air temperature for the month

Day Night

Tap a date to open detailed weather for that day

September	Day	Night	Sea t°	Wind	Precip	Humidity
1Sun	+31°C	+21°C	—	2-4 m/s, WSW	0 mm	47%
2Mon	+32°C	+20°C	—	3-5 m/s, SSW	0 mm	44%
3Tue	+32°C	+21°C	—	2-5 m/s, WSW	0 mm	44%
4Wed	+33°C	+21°C	—	3-4 m/s, WNW	0 mm	38%
5Thu	+30°C	+22°C	—	2-4 m/s, SW	0 mm	48%
6Fri	+29°C	+21°C	—	3-5 m/s, SSW	0.2 mm	60%
7Sat	+28°C	+21°C	—	2-4 m/s, SSW	0.6 mm	62%
8Sun	+29°C	+20°C	—	2-4 m/s, SSW	0 mm	64%
9Mon	+27°C	+20°C	—	3-4 m/s, S	0 mm	60%
10Tue	+29°C	+19°C	—	2-4 m/s, SSW	0.1 mm	63%
11Wed	+28°C	+20°C	—	2-4 m/s, SW	0 mm	58%
12Thu	+30°C	+21°C	—	2 m/s, WNW	0 mm	50%
13Fri	+30°C	+20°C	—	3-5 m/s, WSW	0 mm	42%
14Sat	+31°C	+18°C	—	3-4 m/s, NNW	0 mm	29%
15Sun	+29°C	+20°C	—	2-3 m/s, W	0 mm	42%
16Mon	+29°C	+20°C	—	2-4 m/s, SW	0 mm	55%
17Tue	+31°C	+19°C	—	2-3 m/s, WSW	0 mm	52%
18Wed	+32°C	+21°C	—	1-2 m/s, WNW	0 mm	45%
19Thu	+27°C	+19°C	—	2-3 m/s, SW	0 mm	60%
20Fri	+23°C	+13°C	—	4-5 m/s, SW	1.9 mm	64%
21Sat	+21°C	+14°C	—	2-3 m/s, SW	0 mm	57%
22Sun	+22°C	+15°C	—	2-3 m/s, SSW	0 mm	57%
23Mon	+25°C	+15°C	—	2-3 m/s, SSW	0 mm	63%
24Tue	+24°C	+17°C	—	1-2 m/s, S	2.3 mm	73%
25Wed	+24°C	+17°C	—	2-3 m/s, SSW	0.1 mm	74%
26Thu	+25°C	+18°C	—	2 m/s, SSW	0 mm	72%
27Fri	+26°C	+18°C	—	2-4 m/s, NNW	0 mm	56%
28Sat	+26°C	+17°C	—	2-3 m/s, S	0 mm	57%
29Sun	+27°C	+18°C	—	1-2 m/s, SW	0 mm	64%
30Mon	+27°C	+19°C	—	1-3 m/s, SSW	0 mm	61%

Weather highs and lows in Thessaloniki for september

Warmest day: 4 september, +33°C
Coldest night: 20 september, +13°C
Max precipitation: 24 september, 2.3 mm
Warmest water: —
Coldest water: —

Climate in Thessaloniki in september

Year: 2019
Average daytime temperature: +28°C
Average nighttime temperature: +19°C
Water temperature: —
Precipitation (month): 5.2 mm
Days with precipitation: 2
Humidity: 55%
Wind: 2 m/s

Weather in Thessaloniki in september by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+29°C	+19°C	1.9 mm	1	+26°C
2024	+28°C	+19°C	4.5 mm	2	—
2023	+29°C	+19°C	6.7 mm	2	—
2022	+27°C	+18°C	19.3 mm	2	—
2021	+28°C	+18°C	6.2 mm	2	—
2020	+29°C	+21°C	0.2 mm	0	—
2019	+28°C	+19°C	5.2 mm	2	—

Comparison september in Thessaloniki with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+10°C	+4°C	4	14
February	+12°C	+5°C	2	14
March	+15°C	+7°C	4	13
April	+18°C	+10°C	4	13
May	+24°C	+14°C	3	14
June	+30°C	+20°C	2	18
July	+34°C	+23°C	1	26
August	+33°C	+23°C	1	24
September	+28°C	+19°C	2	20
October	+22°C	+14°C	3	20
November	+17°C	+11°C	4	13
December	+12°C	+7°C	5	13