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September

Royan Weather in September with Sea Temperature

September weather in Royan includes average daytime air +25°C, nighttime +14°C, average sea temperature +21°C. Daily water temperatures usually range from +20°C to +22°C, which is mild for 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	+15°C	+22°C	4 m/s	0.8 mm	70%
2Tue	+25°C	+15°C	+22°C	3 m/s	0.7 mm	73%
3Wed	+27°C	+16°C	+22°C	3 m/s	0.4 mm	69%
4Thu	+29°C	+15°C	+21°C	3 m/s	0.3 mm	61%
5Fri	+28°C	+16°C	+22°C	3 m/s	0 mm	61%
6Sat	+28°C	+16°C	+21°C	3 m/s	0.4 mm	57%
7Sun	+28°C	+16°C	+22°C	4 m/s	0.9 mm	61%
8Mon	+26°C	+16°C	+22°C	4 m/s	0.3 mm	65%
9Tue	+26°C	+15°C	+22°C	3 m/s	0.2 mm	61%
10Wed	+26°C	+16°C	+21°C	4 m/s	0.1 mm	66%
11Thu	+26°C	+16°C	+21°C	3 m/s	0.2 mm	70%
12Fri	+26°C	+15°C	+21°C	3 m/s	0.5 mm	57%
13Sat	+28°C	+15°C	+21°C	4 m/s	0.1 mm	57%
14Sun	+27°C	+16°C	+20°C	4 m/s	0.4 mm	64%
15Mon	+26°C	+16°C	+20°C	4 m/s	0.8 mm	66%
16Tue	+26°C	+15°C	+20°C	3 m/s	0.1 mm	65%
17Wed	+27°C	+15°C	+20°C	4 m/s	0.9 mm	64%
18Thu	+25°C	+14°C	+20°C	4 m/s	0.6 mm	59%
19Fri	+26°C	+14°C	+20°C	4 m/s	0.4 mm	63%
20Sat	+25°C	+14°C	+21°C	4 m/s	0.3 mm	67%
21Sun	+23°C	+14°C	+20°C	4 m/s	2.6 mm	73%
22Mon	+22°C	+13°C	+21°C	4 m/s	0.4 mm	71%
23Tue	+21°C	+11°C	+21°C	3 m/s	0.2 mm	67%
24Wed	+21°C	+12°C	+20°C	4 m/s	0.7 mm	71%
25Thu	+21°C	+12°C	+20°C	3 m/s	1.1 mm	68%
26Fri	+20°C	+12°C	+21°C	5 m/s	0.9 mm	72%
27Sat	+20°C	+11°C	+20°C	4 m/s	0.6 mm	71%
28Sun	+21°C	+12°C	+21°C	3 m/s	0.2 mm	70%
29Mon	+21°C	+11°C	+20°C	3 m/s	0.3 mm	71%
30Tue	+21°C	+11°C	+20°C	3 m/s	0 mm	70%

Sea water temperature by months

Water +21°C

Day and night air temperature

Day +25°C Night +14°C

Weather highs and lows in Royan for september

Warmest day: 4 september, +29°C
Coldest night: 27 september, +11°C
Max precipitation: 21 september, 2.6 mm
Warmest sea water: 1 september, +22°C
Coldest sea water: 14 september, +20°C

Climate in Royan in september

Average daytime temperature: +25°C
Average nighttime temperature: +14°C
Sea water temperature: —
Precipitation (monthly average): 15.2 mm
Days with precipitation: 4.7
Humidity: 66%
Wind: 4 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	+21°C	+14°C	—	4-6 m/s, WSW	0.9 mm	84%
2Tue	+20°C	+14°C	—	5-8 m/s, SW	3.2 mm	87%
3Wed	+27°C	+16°C	—	5-6 m/s, SSW	0 mm	78%
4Thu	+22°C	+14°C	—	6-9 m/s, WSW	1.3 mm	78%
5Fri	+24°C	+13°C	—	2-3 m/s, ESE	0.2 mm	69%
6Sat	+32°C	+13°C	—	4-7 m/s, SE	0 mm	50%
7Sun	+25°C	+16°C	—	6-7 m/s, WSW	0 mm	62%
8Mon	+18°C	+15°C	—	2-3 m/s, N	0.1 mm	80%
9Tue	+22°C	+11°C	—	2-4 m/s, WSW	0 mm	64%
10Wed	+20°C	+12°C	—	5-8 m/s, SW	0.5 mm	77%
11Thu	+22°C	+14°C	—	5-7 m/s, WSW	0.8 mm	78%
12Fri	+21°C	+13°C	—	4-5 m/s, W	0.2 mm	72%
13Sat	+22°C	+14°C	—	4-6 m/s, WSW	0.1 mm	74%
14Sun	+22°C	+16°C	—	5-7 m/s, WSW	2.1 mm	90%
15Mon	+21°C	+14°C	—	6-7 m/s, W	0.2 mm	77%
16Tue	+21°C	+13°C	—	3-4 m/s, WSW	0.1 mm	72%
17Wed	+27°C	+13°C	—	2 m/s, SE	0 mm	63%
18Thu	+31°C	+14°C	—	2-3 m/s, ESE	0 mm	48%
19Fri	+33°C	+16°C	—	4-5 m/s, SSE	0 mm	44%
20Sat	+28°C	+17°C	—	4-6 m/s, SSW	0.2 mm	70%
21Sun	+21°C	+13°C	—	3-4 m/s, SSW	3.5 mm	80%
22Mon	+15°C	+11°C	—	4-6 m/s, NE	1.5 mm	88%
23Tue	+16°C	+7°C	—	4-5 m/s, N	0 mm	71%
24Wed	+14°C	+9°C	—	3-4 m/s, NNW	0 mm	78%
25Thu	+18°C	+8°C	—	2 m/s, N	0 mm	66%
26Fri	+18°C	+10°C	—	3 m/s, N	0 mm	66%
27Sat	+20°C	+10°C	—	2-3 m/s, ESE	0 mm	68%
28Sun	+22°C	+11°C	—	2 m/s, NE	0 mm	57%
29Mon	+23°C	+11°C	—	3-4 m/s, NE	0 mm	54%
30Tue	+23°C	+12°C	—	3 m/s, NE	0 mm	58%

Weather highs and lows in Royan for september

Warmest day: 19 september, +33°C
Coldest night: 23 september, +7°C
Max precipitation: 21 september, 3.5 mm
Warmest water: —
Coldest water: —

Climate in Royan in september

Year: 2025
Average daytime temperature: +22°C
Average nighttime temperature: +13°C
Water temperature: —
Precipitation (month): 14.9 mm
Days with precipitation: 5
Humidity: 70%
Wind: 4 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	+23°C	+17°C	+22°C	4-6 m/s, WSW	3.8 mm	86%
2Mon	+23°C	+16°C	+22°C	2-4 m/s, WSW	0 mm	84%
3Tue	+22°C	+17°C	+22°C	2-3 m/s, WSW	1.8 mm	79%
4Wed	+24°C	+13°C	+21°C	3-6 m/s, NW	0 mm	74%
5Thu	+19°C	+12°C	+22°C	3-4 m/s, WNW	0 mm	75%
6Fri	+17°C	+12°C	+21°C	2-3 m/s, NE	2.2 mm	83%
7Sat	+22°C	+13°C	+22°C	4-6 m/s, SW	4.8 mm	83%
8Sun	+23°C	+14°C	+22°C	5-6 m/s, WSW	0.1 mm	76%
9Mon	+22°C	+14°C	+22°C	5-6 m/s, WNW	0.3 mm	79%
10Tue	+21°C	+11°C	+21°C	4-6 m/s, W	0 mm	74%
11Wed	+19°C	+14°C	+21°C	4-6 m/s, WNW	0.1 mm	78%
12Thu	+19°C	+10°C	+21°C	3-6 m/s, N	0.1 mm	55%
13Fri	+20°C	+7°C	+21°C	3-4 m/s, NNE	0 mm	58%
14Sat	+21°C	+8°C	+20°C	4-6 m/s, NE	0 mm	58%
15Sun	+23°C	+8°C	+20°C	5-6 m/s, NE	0 mm	52%
16Mon	+24°C	+10°C	+20°C	4-6 m/s, NNE	0 mm	52%
17Tue	+25°C	+13°C	+20°C	6-8 m/s, NE	0 mm	63%
18Wed	+25°C	+12°C	+20°C	5-6 m/s, E	0 mm	60%
19Thu	+25°C	+12°C	+20°C	3 m/s, ESE	0 mm	67%
20Fri	+27°C	+14°C	+21°C	3-4 m/s, SE	0 mm	59%
21Sat	+25°C	+15°C	+20°C	3-4 m/s, SSE	3.7 mm	82%
22Sun	+22°C	+15°C	+21°C	3-4 m/s, WSW	0.2 mm	83%
23Mon	+20°C	+13°C	+21°C	4-6 m/s, W	0.7 mm	82%
24Tue	+20°C	+14°C	+20°C	5-8 m/s, WSW	2 mm	84%
25Wed	+19°C	+13°C	+20°C	5-6 m/s, SSE	4.2 mm	91%
26Thu	+20°C	+14°C	+21°C	8 m/s, SW	3 mm	90%
27Fri	+17°C	+12°C	+20°C	7-8 m/s, WSW	2.8 mm	76%
28Sat	+17°C	+8°C	+21°C	3-4 m/s, NNW	0 mm	70%
29Sun	+16°C	+8°C	+20°C	3 m/s, SE	1.8 mm	76%
30Mon	+19°C	+12°C	+20°C	6-8 m/s, WSW	0.2 mm	83%

Weather highs and lows in Royan for september

Warmest day: 20 september, +27°C
Coldest night: 13 september, +7°C
Max precipitation: 7 september, 4.8 mm
Warmest water: 1 september, +22°C
Coldest water: 14 september, +20°C

Climate in Royan in september

Year: 2024
Average daytime temperature: +21°C
Average nighttime temperature: +12°C
Water temperature: —
Precipitation (month): 31.8 mm
Days with precipitation: 10
Humidity: 74%
Wind: 4 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Fri	+28°C	+16°C	—	3-4 m/s, SW	0.1 mm	76%
2Sat	+26°C	+17°C	—	2-3 m/s, ESE	1 mm	81%
3Sun	+34°C	+16°C	—	4-5 m/s, ESE	0 mm	52%
4Mon	+39°C	+20°C	—	4-7 m/s, ESE	0 mm	34%
5Tue	+36°C	+20°C	—	3-4 m/s, SW	0 mm	38%
6Wed	+36°C	+23°C	—	3-4 m/s, SE	0 mm	39%
7Thu	+36°C	+20°C	—	3 m/s, SSE	0 mm	42%
8Fri	+36°C	+20°C	—	3 m/s, ESE	0 mm	34%
9Sat	+36°C	+20°C	—	3 m/s, S	0 mm	29%
10Sun	+34°C	+21°C	—	3 m/s, SE	0.1 mm	47%
11Mon	+29°C	+18°C	—	2-4 m/s, S	0.1 mm	74%
12Tue	+26°C	+18°C	—	3-5 m/s, W	2.8 mm	78%
13Wed	+27°C	+16°C	—	3-5 m/s, WNW	0 mm	71%
14Thu	+27°C	+14°C	—	1-2 m/s, SSE	0 mm	68%
15Fri	+31°C	+16°C	—	3-5 m/s, SE	4.1 mm	50%
16Sat	+29°C	+18°C	—	3-4 m/s, S	0 mm	66%
17Sun	+30°C	+18°C	—	4-5 m/s, SSE	5.4 mm	79%
18Mon	+22°C	+17°C	—	4-5 m/s, W	1.2 mm	81%
19Tue	+24°C	+15°C	—	4-5 m/s, SW	0.2 mm	74%
20Wed	+25°C	+15°C	—	4-5 m/s, SSW	0 mm	74%
21Thu	+21°C	+14°C	—	5-6 m/s, WSW	3.1 mm	84%
22Fri	+19°C	+12°C	—	5-6 m/s, N	0.2 mm	75%
23Sat	+19°C	+10°C	—	2 m/s, W	0 mm	70%
24Sun	+24°C	+10°C	—	3-4 m/s, SE	0 mm	60%
25Mon	+26°C	+13°C	—	1-2 m/s, E	0 mm	57%
26Tue	+26°C	+15°C	—	3 m/s, SSW	0 mm	56%
27Wed	+29°C	+15°C	—	4-6 m/s, SSE	0 mm	73%
28Thu	+27°C	+16°C	—	2 m/s, SSE	0 mm	74%
29Fri	+24°C	+16°C	—	3-4 m/s, WNW	0 mm	76%
30Sat	+26°C	+14°C	—	1-2 m/s, NNW	0 mm	72%

Weather highs and lows in Royan for september

Warmest day: 4 september, +39°C
Coldest night: 23 september, +10°C
Max precipitation: 17 september, 5.4 mm
Warmest water: —
Coldest water: —

Climate in Royan in september

Year: 2023
Average daytime temperature: +28°C
Average nighttime temperature: +16°C
Water temperature: —
Precipitation (month): 18.3 mm
Days with precipitation: 6
Humidity: 63%
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	+28°C	+18°C	—	3-4 m/s, WSW	0 mm	74%
2Fri	+25°C	+17°C	—	3-6 m/s, SW	0.1 mm	75%
3Sat	+26°C	+17°C	—	4-5 m/s, SW	0.2 mm	74%
4Sun	+32°C	+14°C	—	2-4 m/s, SE	0 mm	61%
5Mon	+32°C	+17°C	—	3-4 m/s, WNW	0 mm	58%
6Tue	+29°C	+16°C	—	3-4 m/s, SSW	0 mm	68%
7Wed	+24°C	+17°C	—	2-4 m/s, WSW	0.6 mm	70%
8Thu	+24°C	+15°C	—	5-6 m/s, WSW	1.4 mm	71%
9Fri	+24°C	+15°C	—	5-7 m/s, W	0.2 mm	75%
10Sat	+26°C	+15°C	—	3-4 m/s, SW	0 mm	60%
11Sun	+31°C	+16°C	—	3-5 m/s, ESE	0 mm	52%
12Mon	+34°C	+19°C	—	4 m/s, S	0 mm	36%
13Tue	+32°C	+21°C	—	5-8 m/s, SSW	0.3 mm	57%
14Wed	+29°C	+18°C	—	4-6 m/s, SW	0 mm	66%
15Thu	+26°C	+17°C	—	3-5 m/s, WSW	0.2 mm	75%
16Fri	+23°C	+14°C	—	4-6 m/s, NNW	0 mm	65%
17Sat	+21°C	+10°C	—	5 m/s, NNE	0 mm	53%
18Sun	+24°C	+9°C	—	4-5 m/s, NE	0 mm	40%
19Mon	+24°C	+10°C	—	5-6 m/s, NE	0 mm	46%
20Tue	+24°C	+10°C	—	5-7 m/s, NE	0 mm	44%
21Wed	+25°C	+11°C	—	5-7 m/s, NE	0 mm	44%
22Thu	+27°C	+11°C	—	4 m/s, NE	0 mm	38%
23Fri	+26°C	+12°C	—	3-4 m/s, SW	0 mm	38%
24Sat	+22°C	+12°C	—	3-5 m/s, N	0.2 mm	75%
25Sun	+21°C	+11°C	—	3-4 m/s, NNE	0 mm	70%
26Mon	+19°C	+10°C	—	5-8 m/s, WNW	2.1 mm	77%
27Tue	+19°C	+10°C	—	5-6 m/s, WNW	0.6 mm	66%
28Wed	+18°C	+14°C	—	6-8 m/s, WNW	0.9 mm	83%
29Thu	+19°C	+10°C	—	3-5 m/s, NNW	0.1 mm	64%
30Fri	+20°C	+8°C	—	3-5 m/s, NNW	0 mm	75%

Weather highs and lows in Royan for september

Warmest day: 12 september, +34°C
Coldest night: 30 september, +8°C
Max precipitation: 26 september, 2.1 mm
Warmest water: —
Coldest water: —

Climate in Royan in september

Year: 2022
Average daytime temperature: +25°C
Average nighttime temperature: +14°C
Water temperature: —
Precipitation (month): 6.9 mm
Days with precipitation: 2
Humidity: 62%
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	+30°C	+14°C	—	6-7 m/s, ENE	0 mm	44%
2Thu	+29°C	+16°C	—	4-5 m/s, S	0 mm	54%
3Fri	+28°C	+17°C	—	2-3 m/s, SE	0.1 mm	73%
4Sat	+28°C	+16°C	—	2-3 m/s, SE	0.3 mm	67%
5Sun	+32°C	+16°C	—	2-3 m/s, SE	0 mm	60%
6Mon	+34°C	+18°C	—	3-4 m/s, E	0 mm	42%
7Tue	+36°C	+20°C	—	4-6 m/s, SE	0 mm	44%
8Wed	+28°C	+19°C	—	3-4 m/s, SSE	0.4 mm	80%
9Thu	+25°C	+17°C	—	2-3 m/s, WSW	0.7 mm	76%
10Fri	+25°C	+16°C	—	4-5 m/s, WSW	0 mm	76%
11Sat	+26°C	+15°C	—	2 m/s, E	0 mm	69%
12Sun	+28°C	+15°C	—	3 m/s, E	0 mm	52%
13Mon	+33°C	+17°C	—	4-5 m/s, ESE	0 mm	38%
14Tue	+29°C	+19°C	—	4 m/s, SSW	0.1 mm	62%
15Wed	+22°C	+18°C	—	3-4 m/s, N	0.1 mm	89%
16Thu	+25°C	+17°C	—	2-3 m/s, NE	0.2 mm	72%
17Fri	+25°C	+14°C	—	2-4 m/s, SW	0.1 mm	73%
18Sat	+21°C	+14°C	—	3-4 m/s, W	1.8 mm	76%
19Sun	+23°C	+13°C	—	4-5 m/s, WNW	0 mm	74%
20Mon	+21°C	+13°C	—	4-5 m/s, NW	0.9 mm	78%
21Tue	+24°C	+14°C	—	4-6 m/s, NE	0.1 mm	66%
22Wed	+24°C	+12°C	—	4-5 m/s, NE	0 mm	61%
23Thu	+26°C	+11°C	—	3 m/s, NE	0 mm	54%
24Fri	+27°C	+13°C	—	2-3 m/s, NE	0 mm	50%
25Sat	+25°C	+16°C	—	2-3 m/s, SSW	1.3 mm	59%
26Sun	+23°C	+15°C	—	5-6 m/s, WSW	0.1 mm	78%
27Mon	+22°C	+13°C	—	4-5 m/s, NW	0 mm	73%
28Tue	+21°C	+11°C	—	2-4 m/s, NW	0 mm	67%
29Wed	+22°C	+11°C	—	4 m/s, N	0 mm	71%
30Thu	+20°C	+8°C	—	2-3 m/s, E	0 mm	51%

Weather highs and lows in Royan for september

Warmest day: 7 september, +36°C
Coldest night: 30 september, +8°C
Max precipitation: 18 september, 1.8 mm
Warmest water: —
Coldest water: —

Climate in Royan in september

Year: 2021
Average daytime temperature: +26°C
Average nighttime temperature: +15°C
Water temperature: —
Precipitation (month): 6.2 mm
Days with precipitation: 2
Humidity: 64%
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	+13°C	—	4 m/s, NE	0 mm	57%
2Wed	+24°C	+11°C	—	3-4 m/s, N	0 mm	56%
3Thu	+27°C	+13°C	—	2 m/s, E	0 mm	56%
4Fri	+30°C	+15°C	—	2-3 m/s, SE	0 mm	54%
5Sat	+25°C	+16°C	—	4-5 m/s, WSW	0 mm	64%
6Sun	+22°C	+12°C	—	4-6 m/s, WSW	0 mm	62%
7Mon	+24°C	+11°C	—	3-4 m/s, NNE	0 mm	66%
8Tue	+26°C	+13°C	—	3-5 m/s, NE	0 mm	51%
9Wed	+29°C	+13°C	—	3-4 m/s, NE	0 mm	43%
10Thu	+29°C	+18°C	—	4-5 m/s, NNE	0 mm	62%
11Fri	+29°C	+16°C	—	3-4 m/s, NE	0 mm	66%
12Sat	+30°C	+16°C	—	3-4 m/s, NNE	0 mm	50%
13Sun	+32°C	+16°C	—	2-3 m/s, E	0 mm	44%
14Mon	+34°C	+20°C	—	4-5 m/s, SSE	0 mm	41%
15Tue	+30°C	+20°C	—	3-4 m/s, S	0 mm	53%
16Wed	+31°C	+18°C	—	1-3 m/s, WSW	0 mm	60%
17Thu	+33°C	+19°C	—	4 m/s, E	0 mm	51%
18Fri	+29°C	+20°C	—	4-5 m/s, S	0.6 mm	48%
19Sat	+26°C	+18°C	—	3-4 m/s, SSE	2.1 mm	75%
20Sun	+25°C	+15°C	—	2 m/s, ESE	0.4 mm	75%
21Mon	+24°C	+16°C	—	3-4 m/s, ENE	5.4 mm	82%
22Tue	+22°C	+16°C	—	3-4 m/s, W	0.4 mm	80%
23Wed	+21°C	+15°C	—	4-6 m/s, S	0.5 mm	86%
24Thu	+20°C	+12°C	—	6-9 m/s, WSW	2.1 mm	76%
25Fri	+17°C	+11°C	—	6-8 m/s, NW	0.8 mm	67%
26Sat	+14°C	+9°C	—	4-5 m/s, NW	0.4 mm	64%
27Sun	+14°C	+7°C	—	4-7 m/s, NW	0 mm	67%
28Mon	+18°C	+12°C	—	5 m/s, NW	0 mm	69%
29Tue	+20°C	+12°C	—	2-3 m/s, SW	0.1 mm	84%
30Wed	+20°C	+13°C	—	3-4 m/s, SSW	0 mm	83%

Weather highs and lows in Royan for september

Warmest day: 14 september, +34°C
Coldest night: 27 september, +7°C
Max precipitation: 21 september, 5.4 mm
Warmest water: —
Coldest water: —

Climate in Royan in september

Year: 2020
Average daytime temperature: +25°C
Average nighttime temperature: +15°C
Water temperature: —
Precipitation (month): 12.8 mm
Days with precipitation: 3
Humidity: 63%
Wind: 3 m/s

Weather in Royan in september by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+22°C	+13°C	14.9 mm	5	—
2024	+21°C	+12°C	31.8 mm	10	—
2023	+28°C	+16°C	18.3 mm	6	—
2022	+25°C	+14°C	6.9 mm	2	—
2021	+26°C	+15°C	6.2 mm	2	—
2020	+25°C	+15°C	12.8 mm	3	—

Comparison september in Royan with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+10°C	+4°C	6	8
February	+13°C	+6°C	5	9
March	+14°C	+6°C	5	8
April	+17°C	+8°C	5	9
May	+20°C	+11°C	4	12
June	+25°C	+15°C	4	11
July	+27°C	+16°C	2	15
August	+29°C	+16°C	2	17
September	+25°C	+14°C	5	11
October	+20°C	+12°C	6	11
November	+15°C	+8°C	5	8
December	+11°C	+6°C	6	8