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September

Supetar Weather in September with Sea Temperature

September weather in Supetar includes average daytime air +25°C, nighttime +19°C, average sea temperature +24°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	+26°C	+20°C	+26°C	3 m/s	0.4 mm	61%
2Tue	+26°C	+20°C	+27°C	3 m/s	0 mm	58%
3Wed	+26°C	+20°C	+26°C	3 m/s	0.1 mm	59%
4Thu	+26°C	+20°C	+26°C	3 m/s	0.3 mm	58%
5Fri	+27°C	+20°C	+26°C	4 m/s	0 mm	57%
6Sat	+28°C	+20°C	+25°C	3 m/s	0.4 mm	56%
7Sun	+27°C	+20°C	+25°C	2 m/s	0 mm	56%
8Mon	+27°C	+21°C	+25°C	3 m/s	0 mm	57%
9Tue	+26°C	+21°C	+26°C	3 m/s	4.5 mm	62%
10Wed	+27°C	+20°C	+25°C	4 m/s	0.3 mm	60%
11Thu	+26°C	+20°C	+25°C	2 m/s	0.2 mm	59%
12Fri	+26°C	+19°C	+25°C	3 m/s	1.4 mm	59%
13Sat	+26°C	+19°C	+24°C	3 m/s	1.8 mm	58%
14Sun	+25°C	+19°C	+24°C	3 m/s	0 mm	57%
15Mon	+25°C	+19°C	+25°C	3 m/s	1 mm	61%
16Tue	+25°C	+19°C	+24°C	3 m/s	5.7 mm	64%
17Wed	+26°C	+19°C	+25°C	3 m/s	1.9 mm	63%
18Thu	+24°C	+18°C	+24°C	4 m/s	0.4 mm	62%
19Fri	+24°C	+19°C	+23°C	3 m/s	1.2 mm	62%
20Sat	+25°C	+19°C	+24°C	2 m/s	0.2 mm	57%
21Sun	+24°C	+18°C	+24°C	3 m/s	0.2 mm	61%
22Mon	+23°C	+18°C	+23°C	4 m/s	1.8 mm	63%
23Tue	+23°C	+17°C	+23°C	4 m/s	4.8 mm	64%
24Wed	+23°C	+17°C	+23°C	4 m/s	3.9 mm	67%
25Thu	+23°C	+17°C	+23°C	5 m/s	7.6 mm	73%
26Fri	+23°C	+17°C	+24°C	3 m/s	1.3 mm	69%
27Sat	+23°C	+18°C	+24°C	4 m/s	3.5 mm	66%
28Sun	+23°C	+17°C	+23°C	3 m/s	4.6 mm	67%
29Mon	+22°C	+16°C	+23°C	4 m/s	0.5 mm	63%
30Tue	+22°C	+16°C	+23°C	4 m/s	1.9 mm	61%

Sea water temperature by months

Water +24°C

Day and night air temperature

Day +25°C Night +19°C

Weather highs and lows in Supetar for september

Warmest day: 6 september, +28°C
Coldest night: 30 september, +16°C
Max precipitation: 25 september, 7.6 mm
Warmest sea water: 2 september, +27°C
Coldest sea water: 19 september, +23°C

Climate in Supetar in september

Average daytime temperature: +25°C
Average nighttime temperature: +19°C
Sea water temperature: —
Precipitation (monthly average): 49.8 mm
Days with precipitation: 6.5
Humidity: 61%
Wind: 3 m/s
Data: 6 years / coverage 100%

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Mon	+23°C	+19°C	—	2-3 m/s, SSW	0 mm	67%
2Tue	+26°C	+20°C	—	3-4 m/s, S	0 mm	65%
3Wed	+26°C	+20°C	—	4-7 m/s, WNW	0.6 mm	67%
4Thu	+27°C	+20°C	—	3-4 m/s, WSW	0 mm	65%
5Fri	+27°C	+21°C	—	3-4 m/s, WSW	0 mm	63%
6Sat	+29°C	+21°C	—	4-6 m/s, WNW	0 mm	56%
7Sun	+26°C	+20°C	—	2-3 m/s, WSW	0 mm	60%
8Mon	+26°C	+20°C	—	2 m/s, SW	0 mm	60%
9Tue	+25°C	+21°C	—	2-3 m/s, S	0 mm	62%
10Wed	+25°C	+22°C	—	8-11 m/s, SE	1.4 mm	73%
11Thu	+25°C	+20°C	—	1-2 m/s, S	1.4 mm	72%
12Fri	+25°C	+19°C	—	2-3 m/s, SW	0 mm	64%
13Sat	+26°C	+20°C	—	2-3 m/s, WSW	0 mm	63%
14Sun	+24°C	+21°C	—	2 m/s, S	0.1 mm	62%
15Mon	+27°C	+19°C	—	3-5 m/s, W	0 mm	63%
16Tue	+25°C	+21°C	—	2-3 m/s, SW	0 mm	63%
17Wed	+25°C	+18°C	—	3-5 m/s, ENE	0.4 mm	60%
18Thu	+25°C	+17°C	—	3-5 m/s, WSW	0 mm	52%
19Fri	+26°C	+19°C	—	2-4 m/s, SW	0 mm	54%
20Sat	+26°C	+20°C	—	2-3 m/s, SSW	0 mm	55%
21Sun	+25°C	+20°C	—	2 m/s, S	0 mm	60%
22Mon	+26°C	+20°C	—	4-5 m/s, SE	0 mm	58%
23Tue	+25°C	+20°C	—	4-6 m/s, SSE	0 mm	60%
24Wed	+23°C	+20°C	—	6-8 m/s, SE	7.1 mm	78%
25Thu	+23°C	+18°C	—	4-6 m/s, WNW	4.9 mm	70%
26Fri	+22°C	+17°C	—	2 m/s, SSW	0 mm	60%
27Sat	+22°C	+17°C	—	2 m/s, SW	0.1 mm	62%
28Sun	+20°C	+16°C	—	2-4 m/s, NNE	2.1 mm	68%
29Mon	+21°C	+14°C	—	3-4 m/s, SSW	0 mm	56%
30Tue	+20°C	+14°C	—	3-4 m/s, S	0 mm	50%

Weather highs and lows in Supetar for september

Warmest day: 6 september, +29°C
Coldest night: 29 september, +14°C
Max precipitation: 24 september, 7.1 mm
Warmest water: —
Coldest water: —

Climate in Supetar in september

Year: 2025
Average daytime temperature: +25°C
Average nighttime temperature: +19°C
Water temperature: —
Precipitation (month): 18.1 mm
Days with precipitation: 5
Humidity: 62%
Wind: 3 m/s

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
1Sun	+31°C	+23°C	+26°C	4-6 m/s, WSW	0 mm	44%
2Mon	+28°C	+23°C	+27°C	2-4 m/s, SSW	0 mm	52%
3Tue	+28°C	+23°C	+26°C	2-3 m/s, SW	0 mm	59%
4Wed	+27°C	+21°C	+26°C	2-4 m/s, SW	0 mm	60%
5Thu	+27°C	+20°C	+26°C	3-4 m/s, SSE	0 mm	65%
6Fri	+25°C	+20°C	+25°C	2-4 m/s, S	2.3 mm	75%
7Sat	+27°C	+21°C	+25°C	2-3 m/s, SW	0 mm	65%
8Sun	+27°C	+22°C	+25°C	2 m/s, S	0 mm	60%
9Mon	+25°C	+21°C	+26°C	6-7 m/s, SSE	16.5 mm	78%
10Tue	+26°C	+18°C	+25°C	4-6 m/s, ENE	0 mm	62%
11Wed	+24°C	+18°C	+25°C	3-5 m/s, WSW	0 mm	57%
12Thu	+24°C	+20°C	+25°C	6-9 m/s, SE	8.3 mm	72%
13Fri	+22°C	+13°C	+24°C	4-6 m/s, N	10.9 mm	74%
14Sat	+17°C	+12°C	+24°C	4-5 m/s, NNW	0 mm	63%
15Sun	+18°C	+13°C	+25°C	4-7 m/s, NNW	0.4 mm	64%
16Mon	+19°C	+12°C	+24°C	3-4 m/s, NNE	0 mm	61%
17Tue	+22°C	+16°C	+25°C	3-4 m/s, SE	0.1 mm	54%
18Wed	+21°C	+17°C	+24°C	4-5 m/s, ESE	0 mm	65%
19Thu	+19°C	+16°C	+23°C	3-4 m/s, NNE	5.2 mm	76%
20Fri	+22°C	+17°C	+24°C	2-3 m/s, SW	0 mm	65%
21Sat	+22°C	+17°C	+24°C	2-3 m/s, SSW	0 mm	66%
22Sun	+22°C	+17°C	+23°C	2 m/s, SW	0 mm	62%
23Mon	+22°C	+17°C	+23°C	3-4 m/s, S	0 mm	69%
24Tue	+22°C	+19°C	+23°C	5-8 m/s, SE	14 mm	78%
25Wed	+22°C	+18°C	+23°C	4-5 m/s, ESE	17.3 mm	78%
26Thu	+23°C	+18°C	+24°C	5-6 m/s, SE	0.9 mm	76%
27Fri	+24°C	+20°C	+24°C	6-8 m/s, SE	0 mm	73%
28Sat	+23°C	+18°C	+23°C	4-7 m/s, SE	9.3 mm	75%
29Sun	+18°C	+13°C	+23°C	5-9 m/s, NE	0 mm	64%
30Mon	+20°C	+11°C	+23°C	3-5 m/s, WSW	0 mm	52%

Weather highs and lows in Supetar for september

Warmest day: 1 september, +31°C
Coldest night: 30 september, +11°C
Max precipitation: 25 september, 17.3 mm
Warmest water: 2 september, +27°C
Coldest water: 19 september, +23°C

Climate in Supetar in september

Year: 2024
Average daytime temperature: +23°C
Average nighttime temperature: +18°C
Water temperature: —
Precipitation (month): 85.2 mm
Days with precipitation: 8
Humidity: 65%
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	+25°C	+19°C	—	2-3 m/s, SW	0.3 mm	63%
2Sat	+27°C	+20°C	—	3-4 m/s, WSW	0 mm	57%
3Sun	+28°C	+21°C	—	3-5 m/s, W	0 mm	57%
4Mon	+26°C	+21°C	—	6-8 m/s, NE	0 mm	49%
5Tue	+28°C	+20°C	—	7-10 m/s, ENE	0 mm	45%
6Wed	+30°C	+20°C	—	5-6 m/s, NE	0 mm	47%
7Thu	+28°C	+20°C	—	3-4 m/s, SW	0 mm	51%
8Fri	+28°C	+21°C	—	3-4 m/s, SW	0 mm	50%
9Sat	+28°C	+20°C	—	3-4 m/s, SW	0 mm	47%
10Sun	+27°C	+20°C	—	3-4 m/s, SW	0 mm	46%
11Mon	+26°C	+20°C	—	2 m/s, SW	0 mm	51%
12Tue	+25°C	+20°C	—	2 m/s, SSW	0 mm	58%
13Wed	+25°C	+20°C	—	2 m/s, S	0 mm	57%
14Thu	+26°C	+21°C	—	2 m/s, SSW	0 mm	58%
15Fri	+25°C	+20°C	—	2-3 m/s, SSW	0 mm	62%
16Sat	+25°C	+20°C	—	2-3 m/s, SW	0 mm	66%
17Sun	+27°C	+20°C	—	3-5 m/s, WSW	0 mm	61%
18Mon	+26°C	+21°C	—	2-3 m/s, SW	0 mm	64%
19Tue	+26°C	+21°C	—	2-4 m/s, SSW	0 mm	64%
20Wed	+26°C	+21°C	—	2-3 m/s, SSW	0 mm	55%
21Thu	+24°C	+19°C	—	4-6 m/s, SE	1.3 mm	71%
22Fri	+24°C	+20°C	—	7-9 m/s, SE	1.6 mm	81%
23Sat	+23°C	+17°C	—	4-8 m/s, ESE	25 mm	84%
24Sun	+23°C	+15°C	—	3-6 m/s, ENE	0.5 mm	67%
25Mon	+23°C	+15°C	—	4-5 m/s, SE	0.1 mm	66%
26Tue	+26°C	+17°C	—	4-6 m/s, E	0 mm	60%
27Wed	+26°C	+19°C	—	3-4 m/s, SW	0 mm	54%
28Thu	+25°C	+18°C	—	3-4 m/s, SW	0 mm	51%
29Fri	+24°C	+17°C	—	3 m/s, WSW	0 mm	50%
30Sat	+25°C	+17°C	—	3-4 m/s, SW	0 mm	50%

Weather highs and lows in Supetar for september

Warmest day: 6 september, +30°C
Coldest night: 24 september, +15°C
Max precipitation: 23 september, 25 mm
Warmest water: —
Coldest water: —

Climate in Supetar in september

Year: 2023
Average daytime temperature: +26°C
Average nighttime temperature: +19°C
Water temperature: —
Precipitation (month): 28.8 mm
Days with precipitation: 3
Humidity: 58%
Wind: 3 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Thu	+25°C	+22°C	—	2-3 m/s, NNE	1.6 mm	66%
2Fri	+26°C	+19°C	—	4-6 m/s, SW	0.1 mm	66%
3Sat	+24°C	+19°C	—	2-3 m/s, SSW	0 mm	62%
4Sun	+27°C	+21°C	—	2-4 m/s, SW	1.5 mm	69%
5Mon	+29°C	+20°C	—	3-4 m/s, SW	0 mm	63%
6Tue	+29°C	+21°C	—	2-3 m/s, SW	0 mm	56%
7Wed	+26°C	+21°C	—	2-3 m/s, SSW	0 mm	59%
8Thu	+28°C	+23°C	—	5-7 m/s, SE	0 mm	66%
9Fri	+26°C	+22°C	—	4-5 m/s, SE	10.2 mm	80%
10Sat	+27°C	+21°C	—	2-4 m/s, WSW	0.2 mm	68%
11Sun	+28°C	+19°C	—	3-4 m/s, WNW	0 mm	58%
12Mon	+26°C	+17°C	—	3-4 m/s, SW	0 mm	54%
13Tue	+27°C	+18°C	—	2-4 m/s, SW	0 mm	52%
14Wed	+26°C	+19°C	—	3-4 m/s, SSE	0 mm	59%
15Thu	+25°C	+21°C	—	5-6 m/s, ESE	5.5 mm	72%
16Fri	+25°C	+20°C	—	5-6 m/s, ESE	34.3 mm	83%
17Sat	+25°C	+16°C	—	4-7 m/s, SE	8 mm	81%
18Sun	+22°C	+14°C	—	4-6 m/s, SSE	0 mm	55%
19Mon	+21°C	+15°C	—	3-4 m/s, S	0.3 mm	50%
20Tue	+23°C	+14°C	—	3-4 m/s, S	0 mm	48%
21Wed	+22°C	+14°C	—	4-5 m/s, ENE	0.1 mm	45%
22Thu	+21°C	+13°C	—	3-6 m/s, SSW	0 mm	49%
23Fri	+21°C	+13°C	—	4-6 m/s, N	0 mm	44%
24Sat	+20°C	+14°C	—	4-5 m/s, SE	0 mm	58%
25Sun	+19°C	+17°C	—	7-8 m/s, SE	6.5 mm	83%
26Mon	+20°C	+18°C	—	4-5 m/s, SE	1.2 mm	87%
27Tue	+20°C	+16°C	—	3 m/s, SW	11.6 mm	71%
28Wed	+21°C	+17°C	—	4-6 m/s, SE	2.3 mm	73%
29Thu	+22°C	+18°C	—	6-8 m/s, SSE	2.5 mm	79%
30Fri	+22°C	+19°C	—	6-8 m/s, SSE	11.4 mm	79%

Weather highs and lows in Supetar for september

Warmest day: 5 september, +29°C
Coldest night: 22 september, +13°C
Max precipitation: 16 september, 34.3 mm
Warmest water: —
Coldest water: —

Climate in Supetar in september

Year: 2022
Average daytime temperature: +24°C
Average nighttime temperature: +18°C
Water temperature: —
Precipitation (month): 97.3 mm
Days with precipitation: 12
Humidity: 65%
Wind: 4 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Wed	+26°C	+19°C	—	4-5 m/s, WSW	0 mm	57%
2Thu	+27°C	+18°C	—	4-5 m/s, SW	0 mm	51%
3Fri	+25°C	+17°C	—	3-4 m/s, SSW	0 mm	48%
4Sat	+25°C	+19°C	—	2-3 m/s, SSW	0 mm	51%
5Sun	+26°C	+18°C	—	3-7 m/s, SW	0 mm	54%
6Mon	+30°C	+20°C	—	4-6 m/s, E	0 mm	45%
7Tue	+26°C	+19°C	—	3-4 m/s, SSW	0 mm	47%
8Wed	+26°C	+19°C	—	2-3 m/s, SSW	0 mm	45%
9Thu	+24°C	+19°C	—	2-3 m/s, SSW	0 mm	48%
10Fri	+25°C	+17°C	—	2-3 m/s, SSW	0 mm	60%
11Sat	+26°C	+18°C	—	2-3 m/s, SW	0 mm	55%
12Sun	+26°C	+19°C	—	2-4 m/s, SW	0 mm	51%
13Mon	+27°C	+19°C	—	2-3 m/s, SW	0 mm	52%
14Tue	+27°C	+19°C	—	2 m/s, SSW	0 mm	48%
15Wed	+27°C	+19°C	—	2 m/s, SW	0 mm	48%
16Thu	+27°C	+22°C	—	2-3 m/s, SW	0 mm	52%
17Fri	+28°C	+21°C	—	3-5 m/s, SSW	3 mm	66%
18Sat	+24°C	+19°C	—	2-3 m/s, SSE	2.3 mm	76%
19Sun	+24°C	+20°C	—	2-3 m/s, S	1.9 mm	73%
20Mon	+25°C	+20°C	—	2-3 m/s, WSW	1.3 mm	66%
21Tue	+23°C	+17°C	—	3-4 m/s, NE	0 mm	61%
22Wed	+23°C	+15°C	—	4-5 m/s, W	0 mm	50%
23Thu	+24°C	+14°C	—	3-5 m/s, WSW	0 mm	50%
24Fri	+23°C	+15°C	—	2-3 m/s, SSW	0 mm	54%
25Sat	+25°C	+16°C	—	2 m/s, SW	0 mm	60%
26Sun	+25°C	+18°C	—	1-2 m/s, S	0 mm	58%
27Mon	+26°C	+19°C	—	2-4 m/s, E	0 mm	64%
28Tue	+28°C	+19°C	—	3-4 m/s, WSW	0 mm	63%
29Wed	+24°C	+18°C	—	2-4 m/s, SSW	0 mm	61%
30Thu	+24°C	+18°C	—	4-6 m/s, N	0 mm	72%

Weather highs and lows in Supetar for september

Warmest day: 6 september, +30°C
Coldest night: 23 september, +14°C
Max precipitation: 17 september, 3 mm
Warmest water: —
Coldest water: —

Climate in Supetar in september

Year: 2021
Average daytime temperature: +26°C
Average nighttime temperature: +18°C
Water temperature: —
Precipitation (month): 8.5 mm
Days with precipitation: 4
Humidity: 56%
Wind: 3 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Tue	+23°C	+18°C	—	3-6 m/s, W	0.4 mm	67%
2Wed	+24°C	+17°C	—	3 m/s, S	0 mm	58%
3Thu	+25°C	+19°C	—	3-4 m/s, WSW	0 mm	58%
4Fri	+26°C	+19°C	—	3-4 m/s, WSW	0 mm	55%
5Sat	+25°C	+18°C	—	2-3 m/s, S	0 mm	51%
6Sun	+26°C	+20°C	—	1-2 m/s, SSW	0 mm	58%
7Mon	+27°C	+20°C	—	2-3 m/s, S	0 mm	51%
8Tue	+28°C	+21°C	—	3-5 m/s, SSW	0 mm	63%
9Wed	+28°C	+21°C	—	3-4 m/s, WSW	0 mm	57%
10Thu	+30°C	+21°C	—	4-6 m/s, WNW	0 mm	51%
11Fri	+28°C	+22°C	—	2-4 m/s, SSW	0 mm	58%
12Sat	+29°C	+21°C	—	2-3 m/s, SW	0 mm	56%
13Sun	+30°C	+22°C	—	4-5 m/s, S	0 mm	50%
14Mon	+30°C	+22°C	—	3-5 m/s, S	0 mm	51%
15Tue	+28°C	+21°C	—	3-4 m/s, SW	0 mm	56%
16Wed	+27°C	+21°C	—	2 m/s, SSW	0 mm	59%
17Thu	+29°C	+22°C	—	3-6 m/s, SW	0 mm	55%
18Fri	+27°C	+21°C	—	6-7 m/s, ENE	0 mm	57%
19Sat	+25°C	+20°C	—	3-6 m/s, SSW	0 mm	52%
20Sun	+25°C	+19°C	—	2-3 m/s, SW	0 mm	54%
21Mon	+25°C	+20°C	—	2-3 m/s, SSE	0 mm	64%
22Tue	+24°C	+20°C	—	4-6 m/s, ESE	9.4 mm	75%
23Wed	+23°C	+20°C	—	3-4 m/s, SE	3.5 mm	75%
24Thu	+24°C	+20°C	—	3-4 m/s, SSW	1.7 mm	69%
25Fri	+24°C	+20°C	—	7-8 m/s, SSE	16.5 mm	78%
26Sat	+19°C	+13°C	—	4-6 m/s, SSW	5.8 mm	70%
27Sun	+17°C	+14°C	—	6-11 m/s, SE	9.1 mm	72%
28Mon	+19°C	+16°C	—	4-10 m/s, SE	13.7 mm	70%
29Tue	+20°C	+14°C	—	4-6 m/s, WNW	0.6 mm	68%
30Wed	+20°C	+14°C	—	3-4 m/s, SW	0 mm	60%

Weather highs and lows in Supetar for september

Warmest day: 10 september, +30°C
Coldest night: 26 september, +13°C
Max precipitation: 25 september, 16.5 mm
Warmest water: —
Coldest water: —

Climate in Supetar in september

Year: 2020
Average daytime temperature: +25°C
Average nighttime temperature: +19°C
Water temperature: —
Precipitation (month): 60.7 mm
Days with precipitation: 7
Humidity: 61%
Wind: 3 m/s

Weather in Supetar in september by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+25°C	+19°C	18.1 mm	5	—
2024	+23°C	+18°C	85.2 mm	8	—
2023	+26°C	+19°C	28.8 mm	3	—
2022	+24°C	+18°C	97.3 mm	12	—
2021	+26°C	+18°C	8.5 mm	4	—
2020	+25°C	+19°C	60.7 mm	7	—

Comparison september in Supetar with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+11°C	+6°C	7	13
February	+12°C	+7°C	5	12
March	+14°C	+8°C	7	14
April	+16°C	+10°C	6	13
May	+21°C	+15°C	8	13
June	+26°C	+19°C	4	22
July	+29°C	+22°C	2	27
August	+29°C	+22°C	4	22
September	+25°C	+19°C	7	20
October	+20°C	+15°C	7	16
November	+16°C	+11°C	10	12
December	+13°C	+9°C	10	11