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September

Bermeo Weather in September with Sea Temperature

September weather in Bermeo includes average daytime air +24°C, nighttime +16°C, average sea temperature +21°C. Daily water temperatures usually range from +20°C to +23°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	+24°C	+17°C	+22°C	2 m/s	0.3 mm	76%
2Tue	+23°C	+17°C	+22°C	2 m/s	1.3 mm	80%
3Wed	+25°C	+17°C	+22°C	2 m/s	0.3 mm	76%
4Thu	+27°C	+18°C	+22°C	2 m/s	1.2 mm	69%
5Fri	+26°C	+17°C	+23°C	2 m/s	0.3 mm	71%
6Sat	+27°C	+18°C	+22°C	2 m/s	0.6 mm	68%
7Sun	+26°C	+19°C	+22°C	3 m/s	0.1 mm	66%
8Mon	+24°C	+18°C	+23°C	2 m/s	0.3 mm	72%
9Tue	+24°C	+17°C	+23°C	2 m/s	0.4 mm	71%
10Wed	+24°C	+17°C	+23°C	2 m/s	0.4 mm	73%
11Thu	+25°C	+17°C	+21°C	2 m/s	0.1 mm	74%
12Fri	+23°C	+18°C	+22°C	2 m/s	1.5 mm	78%
13Sat	+25°C	+18°C	+21°C	3 m/s	0.1 mm	66%
14Sun	+26°C	+18°C	+21°C	3 m/s	0 mm	63%
15Mon	+24°C	+18°C	+21°C	2 m/s	0.8 mm	74%
16Tue	+24°C	+17°C	+21°C	2 m/s	0.2 mm	75%
17Wed	+25°C	+17°C	+21°C	2 m/s	0.2 mm	69%
18Thu	+24°C	+17°C	+21°C	3 m/s	0.7 mm	64%
19Fri	+25°C	+17°C	+21°C	3 m/s	0.1 mm	66%
20Sat	+24°C	+16°C	+21°C	2 m/s	1.3 mm	73%
21Sun	+21°C	+15°C	+21°C	3 m/s	1.1 mm	76%
22Mon	+21°C	+14°C	+21°C	3 m/s	0.7 mm	76%
23Tue	+21°C	+14°C	+21°C	2 m/s	0.3 mm	74%
24Wed	+22°C	+15°C	+20°C	2 m/s	0.4 mm	73%
25Thu	+22°C	+14°C	+20°C	4 m/s	0.4 mm	70%
26Fri	+21°C	+14°C	+21°C	3 m/s	0.7 mm	74%
27Sat	+21°C	+15°C	+21°C	3 m/s	0.7 mm	73%
28Sun	+21°C	+15°C	+21°C	2 m/s	0.2 mm	73%
29Mon	+21°C	+14°C	+21°C	3 m/s	0.6 mm	73%
30Tue	+22°C	+14°C	+20°C	2 m/s	0.4 mm	73%

Sea water temperature by months

Water +21°C

Day and night air temperature

Day +24°C Night +16°C

Weather highs and lows in Bermeo for september

Warmest day: 6 september, +27°C
Coldest night: 25 september, +14°C
Max precipitation: 12 september, 1.5 mm
Warmest sea water: 5 september, +23°C
Coldest sea water: 24 september, +20°C

Climate in Bermeo in september

Average daytime temperature: +24°C
Average nighttime temperature: +16°C
Sea water temperature: —
Precipitation (monthly average): 15.7 mm
Days with precipitation: 5.7
Humidity: 72%
Wind: 2 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	+22°C	+15°C	—	3-5 m/s, WNW	0.2 mm	71%
2Tue	+26°C	+15°C	—	3-4 m/s, SSW	0 mm	67%
3Wed	+30°C	+17°C	—	3-4 m/s, WSW	0 mm	64%
4Thu	+23°C	+17°C	—	2-3 m/s, NNW	0.3 mm	76%
5Fri	+25°C	+14°C	—	2-3 m/s, NE	0 mm	71%
6Sat	+34°C	+18°C	—	4-5 m/s, S	0 mm	64%
7Sun	+25°C	+19°C	—	3-4 m/s, N	0 mm	66%
8Mon	+19°C	+15°C	—	2-3 m/s, NW	1.7 mm	91%
9Tue	+20°C	+16°C	—	1 m/s, NNE	0.4 mm	77%
10Wed	+22°C	+15°C	—	2-4 m/s, SSE	0 mm	72%
11Thu	+25°C	+16°C	—	2-3 m/s, SSW	0 mm	74%
12Fri	+20°C	+17°C	—	1-2 m/s, NNW	0.6 mm	84%
13Sat	+21°C	+15°C	—	1-2 m/s, NNW	0 mm	74%
14Sun	+27°C	+16°C	—	2 m/s, N	0 mm	66%
15Mon	+21°C	+17°C	—	2-3 m/s, NNW	0.5 mm	86%
16Tue	+23°C	+16°C	—	1-2 m/s, NE	0 mm	78%
17Wed	+27°C	+16°C	—	2 m/s, NNE	0 mm	70%
18Thu	+32°C	+16°C	—	1-2 m/s, E	0 mm	67%
19Fri	+32°C	+20°C	—	2-3 m/s, SW	0 mm	58%
20Sat	+27°C	+17°C	—	3-4 m/s, NW	0.2 mm	72%
21Sun	+17°C	+13°C	—	3-4 m/s, WNW	3.5 mm	86%
22Mon	+17°C	+13°C	—	4-6 m/s, WNW	1.4 mm	81%
23Tue	+18°C	+13°C	—	2-3 m/s, NE	1.6 mm	74%
24Wed	+17°C	+12°C	—	2 m/s, NNE	0.4 mm	75%
25Thu	+19°C	+11°C	—	2 m/s, N	0 mm	72%
26Fri	+20°C	+11°C	—	1-2 m/s, NNE	0 mm	71%
27Sat	+25°C	+13°C	—	1-2 m/s, ENE	0 mm	63%
28Sun	+22°C	+15°C	—	2 m/s, NNW	0 mm	66%
29Mon	+20°C	+15°C	—	2 m/s, NNW	0 mm	74%
30Tue	+21°C	+14°C	—	1-2 m/s, NNE	0 mm	76%

Weather highs and lows in Bermeo for september

Warmest day: 6 september, +34°C
Coldest night: 25 september, +11°C
Max precipitation: 21 september, 3.5 mm
Warmest water: —
Coldest water: —

Climate in Bermeo in september

Year: 2025
Average daytime temperature: +23°C
Average nighttime temperature: +15°C
Water temperature: —
Precipitation (month): 10.8 mm
Days with precipitation: 4
Humidity: 73%
Wind: 2 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	+25°C	+18°C	+22°C	2 m/s, NNW	0.2 mm	82%
2Mon	+23°C	+18°C	+22°C	2-4 m/s, NNW	1.2 mm	88%
3Tue	+18°C	+17°C	+22°C	2 m/s, NW	0.5 mm	92%
4Wed	+21°C	+17°C	+22°C	3-4 m/s, NW	2.5 mm	81%
5Thu	+19°C	+15°C	+23°C	2-4 m/s, NW	1.7 mm	84%
6Fri	+18°C	+14°C	+22°C	1-2 m/s, NNE	3.8 mm	88%
7Sat	+21°C	+15°C	+22°C	3-4 m/s, WNW	0 mm	74%
8Sun	+22°C	+15°C	+23°C	2-3 m/s, NNW	0 mm	72%
9Mon	+22°C	+14°C	+23°C	3-4 m/s, NW	0.1 mm	76%
10Tue	+20°C	+15°C	+23°C	2-3 m/s, NNW	0.4 mm	79%
11Wed	+21°C	+14°C	+21°C	3-5 m/s, WNW	0.1 mm	77%
12Thu	+17°C	+14°C	+22°C	3-4 m/s, N	5.1 mm	90%
13Fri	+17°C	+12°C	+21°C	3-4 m/s, ENE	0.7 mm	74%
14Sat	+20°C	+11°C	+21°C	2-4 m/s, ENE	0 mm	62%
15Sun	+20°C	+12°C	+21°C	2-3 m/s, NNE	0 mm	63%
16Mon	+20°C	+12°C	+21°C	2-3 m/s, NNE	0 mm	67%
17Tue	+20°C	+14°C	+21°C	2-3 m/s, NNE	0 mm	77%
18Wed	+22°C	+14°C	+21°C	2 m/s, NE	0 mm	75%
19Thu	+25°C	+15°C	+21°C	2 m/s, SE	0 mm	77%
20Fri	+25°C	+16°C	+21°C	2-3 m/s, SSE	5.7 mm	80%
21Sat	+25°C	+16°C	+21°C	2 m/s, S	0.6 mm	83%
22Sun	+20°C	+15°C	+21°C	2-3 m/s, NW	1.1 mm	85%
23Mon	+21°C	+13°C	+21°C	2-3 m/s, WNW	0 mm	78%
24Tue	+23°C	+14°C	+20°C	1-2 m/s, WNW	0 mm	71%
25Wed	+25°C	+15°C	+20°C	5-8 m/s, SSW	0 mm	69%
26Thu	+24°C	+15°C	+21°C	4-8 m/s, W	0.5 mm	76%
27Fri	+17°C	+14°C	+21°C	4-7 m/s, WNW	0.1 mm	80%
28Sat	+18°C	+12°C	+21°C	2-3 m/s, NW	0.6 mm	72%
29Sun	+26°C	+11°C	+21°C	3 m/s, S	0 mm	59%
30Mon	+22°C	+14°C	+20°C	1-2 m/s, NNE	0 mm	65%

Weather highs and lows in Bermeo for september

Warmest day: 29 september, +26°C
Coldest night: 14 september, +11°C
Max precipitation: 20 september, 5.7 mm
Warmest water: 5 september, +23°C
Coldest water: 24 september, +20°C

Climate in Bermeo in september

Year: 2024
Average daytime temperature: +21°C
Average nighttime temperature: +14°C
Water temperature: —
Precipitation (month): 24.9 mm
Days with precipitation: 7
Humidity: 77%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Fri	+26°C	+16°C	—	2 m/s, NNE	0 mm	80%
2Sat	+22°C	+18°C	—	1-2 m/s, NE	4.5 mm	92%
3Sun	+28°C	+17°C	—	2-3 m/s, E	1.1 mm	75%
4Mon	+32°C	+21°C	—	3-5 m/s, SE	4.4 mm	64%
5Tue	+32°C	+20°C	—	3 m/s, SSE	0 mm	68%
6Wed	+31°C	+20°C	—	2 m/s, S	0 mm	66%
7Thu	+33°C	+22°C	—	2 m/s, S	0 mm	62%
8Fri	+32°C	+20°C	—	1 m/s, E	0 mm	67%
9Sat	+32°C	+19°C	—	2-3 m/s, SSE	0 mm	61%
10Sun	+29°C	+19°C	—	2 m/s, ENE	0 mm	76%
11Mon	+25°C	+19°C	—	1-2 m/s, N	0.3 mm	88%
12Tue	+22°C	+18°C	—	1-2 m/s, N	3.1 mm	90%
13Wed	+23°C	+17°C	—	2 m/s, NNW	0 mm	80%
14Thu	+24°C	+18°C	—	2 m/s, NE	0 mm	76%
15Fri	+29°C	+19°C	—	2-3 m/s, S	0.1 mm	66%
16Sat	+30°C	+18°C	—	3-4 m/s, S	0 mm	68%
17Sun	+29°C	+18°C	—	2 m/s, SSW	1.2 mm	63%
18Mon	+25°C	+17°C	—	4 m/s, WSW	0.2 mm	58%
19Tue	+24°C	+16°C	—	2 m/s, NNE	0.1 mm	73%
20Wed	+28°C	+16°C	—	2 m/s, SW	0 mm	69%
21Thu	+22°C	+15°C	—	4-5 m/s, NW	1.1 mm	72%
22Fri	+20°C	+13°C	—	4-5 m/s, WNW	0.8 mm	75%
23Sat	+21°C	+13°C	—	2 m/s, N	0 mm	75%
24Sun	+29°C	+15°C	—	2-3 m/s, S	0 mm	62%
25Mon	+26°C	+15°C	—	2 m/s, NE	0 mm	55%
26Tue	+24°C	+16°C	—	2 m/s, NW	0 mm	66%
27Wed	+28°C	+17°C	—	2-3 m/s, SW	0 mm	71%
28Thu	+29°C	+16°C	—	1-2 m/s, WSW	0 mm	61%
29Fri	+23°C	+17°C	—	2 m/s, N	0 mm	71%
30Sat	+30°C	+16°C	—	2 m/s, ENE	0 mm	75%

Weather highs and lows in Bermeo for september

Warmest day: 7 september, +33°C
Coldest night: 22 september, +13°C
Max precipitation: 2 september, 4.5 mm
Warmest water: —
Coldest water: —

Climate in Bermeo in september

Year: 2023
Average daytime temperature: +27°C
Average nighttime temperature: +17°C
Water temperature: —
Precipitation (month): 16.9 mm
Days with precipitation: 6
Humidity: 71%
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	+25°C	+18°C	—	2 m/s, N	0.1 mm	78%
2Fri	+24°C	+18°C	—	2-3 m/s, NNW	0 mm	78%
3Sat	+23°C	+17°C	—	2 m/s, NNW	0.1 mm	78%
4Sun	+28°C	+18°C	—	2 m/s, SSW	0 mm	66%
5Mon	+31°C	+17°C	—	3-4 m/s, SSW	0 mm	53%
6Tue	+27°C	+19°C	—	2-4 m/s, SW	0 mm	56%
7Wed	+24°C	+18°C	—	2 m/s, WNW	0 mm	70%
8Thu	+24°C	+17°C	—	2 m/s, NNE	0 mm	63%
9Fri	+22°C	+17°C	—	2-3 m/s, NNW	0.7 mm	72%
10Sat	+27°C	+16°C	—	2 m/s, ENE	0 mm	65%
11Sun	+32°C	+19°C	—	2-3 m/s, SSE	0 mm	52%
12Mon	+31°C	+23°C	—	3-4 m/s, SSW	0 mm	56%
13Tue	+30°C	+23°C	—	4 m/s, S	0 mm	59%
14Wed	+27°C	+20°C	—	3-4 m/s, SSW	0 mm	70%
15Thu	+25°C	+19°C	—	2-3 m/s, NNW	4 mm	65%
16Fri	+22°C	+17°C	—	3-4 m/s, NW	0.4 mm	80%
17Sat	+20°C	+16°C	—	3-5 m/s, NE	0 mm	70%
18Sun	+21°C	+16°C	—	2 m/s, ENE	0 mm	50%
19Mon	+22°C	+15°C	—	2-3 m/s, NE	0 mm	54%
20Tue	+22°C	+14°C	—	2 m/s, NNE	0 mm	59%
21Wed	+22°C	+13°C	—	2-3 m/s, NNE	0 mm	60%
22Thu	+23°C	+14°C	—	2 m/s, NNE	0 mm	60%
23Fri	+21°C	+15°C	—	2-3 m/s, NNW	0 mm	66%
24Sat	+18°C	+14°C	—	3-4 m/s, NNW	1.1 mm	74%
25Sun	+17°C	+12°C	—	3 m/s, NW	0.3 mm	80%
26Mon	+19°C	+13°C	—	3-5 m/s, NW	1.2 mm	77%
27Tue	+19°C	+15°C	—	4-5 m/s, WNW	1.2 mm	78%
28Wed	+19°C	+15°C	—	5-6 m/s, WNW	0.4 mm	79%
29Thu	+15°C	+13°C	—	4-5 m/s, NW	3.5 mm	89%
30Fri	+16°C	+13°C	—	4 m/s, NW	1.9 mm	86%

Weather highs and lows in Bermeo for september

Warmest day: 11 september, +32°C
Coldest night: 25 september, +12°C
Max precipitation: 15 september, 4 mm
Warmest water: —
Coldest water: —

Climate in Bermeo in september

Year: 2022
Average daytime temperature: +23°C
Average nighttime temperature: +17°C
Water temperature: —
Precipitation (month): 14.9 mm
Days with precipitation: 6
Humidity: 68%
Wind: 3 m/s

Daily air temperature for the month

Day Night

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September	Day	Night	Sea t°	Wind	Precip	Humidity
1Wed	+22°C	+17°C	—	2 m/s, SE	1.3 mm	80%
2Thu	+21°C	+16°C	—	1-2 m/s, NW	2.1 mm	90%
3Fri	+24°C	+17°C	—	1-2 m/s, N	0.2 mm	83%
4Sat	+27°C	+18°C	—	1-2 m/s, ENE	0 mm	71%
5Sun	+29°C	+18°C	—	2 m/s, ESE	0 mm	70%
6Mon	+31°C	+20°C	—	2 m/s, ESE	0 mm	54%
7Tue	+31°C	+22°C	—	3-4 m/s, SSW	0 mm	55%
8Wed	+27°C	+20°C	—	2 m/s, NW	0.1 mm	74%
9Thu	+23°C	+18°C	—	2 m/s, NNW	1.1 mm	78%
10Fri	+23°C	+17°C	—	2 m/s, NNW	2 mm	78%
11Sat	+23°C	+16°C	—	2 m/s, NE	0 mm	78%
12Sun	+26°C	+17°C	—	1-2 m/s, NNE	0 mm	71%
13Mon	+31°C	+20°C	—	3-5 m/s, S	0 mm	52%
14Tue	+26°C	+20°C	—	3 m/s, SSE	0 mm	62%
15Wed	+21°C	+18°C	—	2-3 m/s, WSW	0.3 mm	94%
16Thu	+22°C	+17°C	—	2-3 m/s, NNW	1 mm	84%
17Fri	+23°C	+15°C	—	2 m/s, N	0 mm	74%
18Sat	+20°C	+16°C	—	4-5 m/s, WNW	2.8 mm	75%
19Sun	+20°C	+15°C	—	3 m/s, WNW	0.1 mm	73%
20Mon	+17°C	+15°C	—	3-4 m/s, NNW	1.9 mm	83%
21Tue	+20°C	+14°C	—	2-3 m/s, NNE	1.3 mm	78%
22Wed	+21°C	+14°C	—	2 m/s, NNW	0.2 mm	77%
23Thu	+21°C	+15°C	—	2 m/s, NNW	0 mm	78%
24Fri	+23°C	+16°C	—	1-2 m/s, E	0 mm	78%
25Sat	+26°C	+17°C	—	3 m/s, WSW	0.2 mm	76%
26Sun	+24°C	+15°C	—	2 m/s, SSW	0 mm	74%
27Mon	+21°C	+17°C	—	3-4 m/s, NNW	0 mm	75%
28Tue	+18°C	+16°C	—	2-3 m/s, NNE	0.2 mm	92%
29Wed	+20°C	+15°C	—	2 m/s, NW	0.2 mm	79%
30Thu	+20°C	+14°C	—	2 m/s, NE	0.2 mm	69%

Weather highs and lows in Bermeo for september

Warmest day: 6 september, +31°C
Coldest night: 21 september, +14°C
Max precipitation: 18 september, 2.8 mm
Warmest water: —
Coldest water: —

Climate in Bermeo in september

Year: 2021
Average daytime temperature: +23°C
Average nighttime temperature: +17°C
Water temperature: —
Precipitation (month): 15.2 mm
Days with precipitation: 8
Humidity: 75%
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	+22°C	+16°C	—	2 m/s, NNW	0.2 mm	67%
2Wed	+23°C	+16°C	—	2-3 m/s, ESE	0.2 mm	67%
3Thu	+24°C	+16°C	—	2 m/s, ENE	0 mm	63%
4Fri	+28°C	+18°C	—	2-3 m/s, S	0 mm	53%
5Sat	+22°C	+18°C	—	2-3 m/s, SE	0 mm	78%
6Sun	+19°C	+17°C	—	2-3 m/s, ESE	0 mm	82%
7Mon	+21°C	+16°C	—	3 m/s, NNE	0.6 mm	69%
8Tue	+22°C	+18°C	—	2-3 m/s, NE	0 mm	65%
9Wed	+24°C	+16°C	—	2 m/s, NNW	0 mm	60%
10Thu	+25°C	+17°C	—	2 m/s, NNW	0 mm	68%
11Fri	+24°C	+18°C	—	1-2 m/s, NE	0 mm	75%
12Sat	+24°C	+19°C	—	1-2 m/s, SE	0 mm	74%
13Sun	+30°C	+18°C	—	2 m/s, SE	0 mm	55%
14Mon	+30°C	+23°C	—	3-4 m/s, SSW	0 mm	40%
15Tue	+25°C	+20°C	—	2 m/s, WNW	0 mm	70%
16Wed	+25°C	+20°C	—	1-2 m/s, NE	0 mm	72%
17Thu	+28°C	+21°C	—	2-3 m/s, E	0 mm	62%
18Fri	+26°C	+21°C	—	3-4 m/s, SSE	0.9 mm	59%
19Sat	+24°C	+19°C	—	4-5 m/s, SSW	0.1 mm	60%
20Sun	+23°C	+17°C	—	2 m/s, WNW	0.2 mm	72%
21Mon	+21°C	+17°C	—	2-3 m/s, NW	0.3 mm	79%
22Tue	+22°C	+16°C	—	2 m/s, ENE	0.8 mm	76%
23Wed	+25°C	+16°C	—	2-4 m/s, WSW	0.2 mm	72%
24Thu	+20°C	+16°C	—	3-6 m/s, NW	0.8 mm	76%
25Fri	+16°C	+13°C	—	8-9 m/s, NW	2 mm	70%
26Sat	+15°C	+13°C	—	5-6 m/s, W	2.5 mm	82%
27Sun	+17°C	+14°C	—	4-5 m/s, NNW	2.9 mm	70%
28Mon	+18°C	+13°C	—	2-3 m/s, WNW	0 mm	66%
29Tue	+20°C	+12°C	—	2 m/s, ENE	0 mm	64%
30Wed	+20°C	+14°C	—	2 m/s, NW	0 mm	69%

Weather highs and lows in Bermeo for september

Warmest day: 13 september, +30°C
Coldest night: 29 september, +12°C
Max precipitation: 27 september, 2.9 mm
Warmest water: —
Coldest water: —

Climate in Bermeo in september

Year: 2020
Average daytime temperature: +23°C
Average nighttime temperature: +17°C
Water temperature: —
Precipitation (month): 11.7 mm
Days with precipitation: 3
Humidity: 68%
Wind: 2 m/s

Weather in Bermeo in september by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+23°C	+15°C	10.8 mm	4	—
2024	+21°C	+14°C	24.9 mm	7	—
2023	+27°C	+17°C	16.9 mm	6	—
2022	+23°C	+17°C	14.9 mm	6	—
2021	+23°C	+17°C	15.2 mm	8	—
2020	+23°C	+17°C	11.7 mm	3	—

Comparison september in Bermeo with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+12°C	+7°C	6	7
February	+14°C	+8°C	5	8
March	+15°C	+9°C	5	7
April	+17°C	+10°C	4	7
May	+19°C	+12°C	4	9
June	+23°C	+15°C	4	8
July	+24°C	+17°C	2	11
August	+25°C	+18°C	3	12
September	+24°C	+16°C	6	10
October	+21°C	+14°C	4	12
November	+16°C	+11°C	8	9
December	+14°C	+9°C	7	8