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May

Ha Long Weather in May with Sea Temperature

May weather in Ha Long includes average daytime air +30°C, nighttime +24°C, average sea temperature +29°C. Daily water temperatures usually range from +25°C to +29°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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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Thu	+27°C	+22°C	+25°C	2 m/s	0.7 mm	79%
2Fri	+28°C	+22°C	+25°C	2 m/s	0.7 mm	76%
3Sat	+29°C	+22°C	+25°C	2 m/s	0.7 mm	80%
4Sun	+30°C	+23°C	+25°C	3 m/s	0.7 mm	84%
5Mon	+31°C	+24°C	+25°C	2 m/s	0.4 mm	82%
6Tue	+31°C	+24°C	+25°C	2 m/s	0.6 mm	82%
7Wed	+30°C	+24°C	+26°C	3 m/s	1.8 mm	83%
8Thu	+29°C	+24°C	+26°C	3 m/s	1.1 mm	85%
9Fri	+29°C	+24°C	+26°C	2 m/s	0.6 mm	85%
10Sat	+29°C	+23°C	+26°C	2 m/s	1.4 mm	86%
11Sun	+29°C	+23°C	+27°C	2 m/s	1.6 mm	83%
12Mon	+29°C	+23°C	+27°C	2 m/s	0.5 mm	82%
13Tue	+29°C	+23°C	+27°C	2 m/s	1 mm	84%
14Wed	+29°C	+24°C	+27°C	2 m/s	0.3 mm	83%
15Thu	+30°C	+23°C	+27°C	3 m/s	0.2 mm	83%
16Fri	+29°C	+24°C	+28°C	3 m/s	0.9 mm	81%
17Sat	+31°C	+24°C	+27°C	2 m/s	0.8 mm	79%
18Sun	+32°C	+25°C	+28°C	2 m/s	0.6 mm	82%
19Mon	+31°C	+25°C	+28°C	2 m/s	0.9 mm	83%
20Tue	+31°C	+25°C	+28°C	3 m/s	1 mm	83%
21Wed	+31°C	+25°C	+28°C	2 m/s	1.3 mm	85%
22Thu	+31°C	+25°C	+28°C	2 m/s	0.7 mm	82%
23Fri	+31°C	+25°C	+28°C	2 m/s	1.4 mm	82%
24Sat	+30°C	+24°C	+28°C	2 m/s	1.4 mm	81%
25Sun	+30°C	+24°C	+28°C	2 m/s	1.3 mm	82%
26Mon	+30°C	+25°C	+28°C	2 m/s	1.8 mm	82%
27Tue	+31°C	+25°C	+28°C	2 m/s	1 mm	83%
28Wed	+31°C	+25°C	+28°C	2 m/s	2.3 mm	80%
29Thu	+31°C	+25°C	+28°C	2 m/s	1.8 mm	81%
30Fri	+32°C	+25°C	+29°C	2 m/s	1.4 mm	83%
31Sat	+32°C	+25°C	+29°C	2 m/s	1.9 mm	81%

Sea water temperature by months

Water +27°C

Day and night air temperature

Day +30°C Night +24°C

Weather highs and lows in Ha Long for may

Warmest day: 31 may, +32°C
Coldest night: 2 may, +22°C
Max precipitation: 28 may, 2.3 mm
Warmest sea water: 30 may, +29°C
Coldest sea water: 1 may, +25°C

Climate in Ha Long in may

Average daytime temperature: +30°C
Average nighttime temperature: +24°C
Sea water temperature: +29°C
Precipitation (monthly average): 32.8 mm
Days with precipitation: 10
Humidity: 82%
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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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Thu	+25°C	+22°C	+25°C	1-2 m/s, NNE	0.8 mm	87%
2Fri	+31°C	+20°C	+25°C	1-2 m/s, S	0 mm	76%
3Sat	+29°C	+23°C	+25°C	2-4 m/s, S	0 mm	84%
4Sun	+30°C	+24°C	+25°C	2-5 m/s, SSE	0.3 mm	88%
5Mon	+31°C	+25°C	+25°C	2-4 m/s, S	0.1 mm	86%
6Tue	+31°C	+25°C	+25°C	2-4 m/s, SSE	0.6 mm	85%
7Wed	+30°C	+25°C	+26°C	2-4 m/s, SSE	0.2 mm	86%
8Thu	+30°C	+25°C	+26°C	3-4 m/s, SSE	0 mm	87%
9Fri	+33°C	+26°C	+26°C	2-3 m/s, SSE	0.4 mm	83%
10Sat	+30°C	+21°C	+26°C	2-3 m/s, ESE	3.7 mm	84%
11Sun	+25°C	+18°C	+27°C	4-6 m/s, N	0.1 mm	73%
12Mon	+28°C	+19°C	+27°C	2-3 m/s, SSE	0 mm	68%
13Tue	+29°C	+21°C	+27°C	2-3 m/s, SE	0 mm	78%
14Wed	+29°C	+23°C	+27°C	2-3 m/s, SE	0.3 mm	85%
15Thu	+29°C	+24°C	+27°C	2-4 m/s, SSE	0.1 mm	85%
16Fri	+30°C	+24°C	+28°C	1-2 m/s, SSE	3.4 mm	85%
17Sat	+26°C	+24°C	+27°C	1 m/s, SSE	1.2 mm	96%
18Sun	+31°C	+25°C	+28°C	2-3 m/s, SSE	2.2 mm	87%
19Mon	+29°C	+24°C	+28°C	2 m/s, ESE	4.1 mm	92%
20Tue	+31°C	+25°C	+28°C	3-5 m/s, SSE	3.2 mm	86%
21Wed	+31°C	+26°C	+28°C	3-4 m/s, SSE	3 mm	84%
22Thu	+31°C	+25°C	+28°C	2-4 m/s, SSE	0.2 mm	86%
23Fri	+28°C	+25°C	+28°C	1 m/s, NE	1 mm	92%
24Sat	+25°C	+21°C	+28°C	2-3 m/s, N	3.8 mm	94%
25Sun	+25°C	+20°C	+28°C	2-3 m/s, N	0 mm	73%
26Mon	+29°C	+22°C	+28°C	1-2 m/s, ESE	0 mm	72%
27Tue	+26°C	+22°C	+28°C	2-3 m/s, E	0.5 mm	86%
28Wed	+30°C	+23°C	+28°C	1-3 m/s, S	0.4 mm	82%
29Thu	+27°C	+24°C	+28°C	1-2 m/s, NNE	0.9 mm	87%
30Fri	+29°C	+23°C	+29°C	1-2 m/s, ESE	0 mm	86%
31Sat	+30°C	+24°C	+29°C	2-3 m/s, SSE	0 mm	86%

Weather highs and lows in Ha Long for may

Warmest day: 9 may, +33°C
Coldest night: 11 may, +18°C
Max precipitation: 19 may, 4.1 mm
Warmest water: 30 may, +29°C
Coldest water: 1 may, +25°C

Climate in Ha Long in may

Year: 2025
Average daytime temperature: +29°C
Average nighttime temperature: +23°C
Water temperature: +27°C
Precipitation (month): 30.5 mm
Days with precipitation: 9
Humidity: 84%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Wed	+33°C	+26°C	—	3 m/s, SSE	1.2 mm	67%
2Thu	+27°C	+24°C	—	2-3 m/s, E	0 mm	84%
3Fri	+28°C	+23°C	—	2-5 m/s, SSE	0.8 mm	92%
4Sat	+29°C	+24°C	—	3-5 m/s, SSE	0.5 mm	91%
5Sun	+31°C	+24°C	—	2-3 m/s, SSE	0.7 mm	80%
6Mon	+31°C	+25°C	—	2-4 m/s, SSE	3.2 mm	79%
7Tue	+31°C	+24°C	—	2-4 m/s, S	2 mm	78%
8Wed	+31°C	+24°C	—	2-3 m/s, SSE	0.4 mm	76%
9Thu	+29°C	+23°C	—	3-4 m/s, ESE	0.9 mm	83%
10Fri	+28°C	+23°C	—	2-3 m/s, SSE	0.2 mm	86%
11Sat	+30°C	+24°C	—	2-3 m/s, SSE	1.2 mm	84%
12Sun	+30°C	+25°C	—	1 m/s, SSE	0.2 mm	87%
13Mon	+28°C	+24°C	—	1-2 m/s, N	2.9 mm	87%
14Tue	+29°C	+23°C	—	1-3 m/s, SE	0 mm	83%
15Wed	+30°C	+24°C	—	2-3 m/s, ESE	0.1 mm	85%
16Thu	+29°C	+23°C	—	3 m/s, E	0 mm	79%
17Fri	+30°C	+22°C	—	2-3 m/s, SE	0 mm	78%
18Sat	+28°C	+24°C	—	2-3 m/s, SSE	0.6 mm	91%
19Sun	+28°C	+24°C	—	2-3 m/s, ESE	0.7 mm	92%
20Mon	+28°C	+24°C	—	1-2 m/s, SE	2.4 mm	90%
21Tue	+31°C	+24°C	—	1-2 m/s, SE	0.1 mm	87%
22Wed	+32°C	+24°C	—	1 m/s, SE	1.9 mm	83%
23Thu	+31°C	+24°C	—	1 m/s, SSE	6.7 mm	84%
24Fri	+31°C	+24°C	—	1-3 m/s, SSE	0.1 mm	80%
25Sat	+30°C	+25°C	—	2-3 m/s, S	0.2 mm	84%
26Sun	+27°C	+25°C	—	2-3 m/s, S	2.2 mm	94%
27Mon	+29°C	+26°C	—	1-3 m/s, WSW	0 mm	90%
28Tue	+30°C	+27°C	—	1 m/s, S	7.7 mm	82%
29Wed	+32°C	+25°C	—	2 m/s, SSE	0.1 mm	86%
30Thu	+30°C	+24°C	—	3-4 m/s, E	4.8 mm	90%
31Fri	+29°C	+24°C	—	3-4 m/s, N	8.2 mm	85%

Weather highs and lows in Ha Long for may

Warmest day: 1 may, +33°C
Coldest night: 17 may, +22°C
Max precipitation: 31 may, 8.2 mm
Warmest water: —
Coldest water: —

Climate in Ha Long in may

Year: 2024
Average daytime temperature: +30°C
Average nighttime temperature: +24°C
Water temperature: —
Precipitation (month): 50 mm
Days with precipitation: 12
Humidity: 84%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Mon	+26°C	+21°C	—	1-2 m/s, ESE	0 mm	83%
2Tue	+30°C	+22°C	—	2-4 m/s, S	0.6 mm	81%
3Wed	+30°C	+23°C	—	2-5 m/s, SSE	0.6 mm	83%
4Thu	+29°C	+24°C	—	3-4 m/s, SSE	0.2 mm	89%
5Fri	+35°C	+24°C	—	2-4 m/s, SSE	0 mm	85%
6Sat	+36°C	+26°C	—	3-4 m/s, S	0 mm	80%
7Sun	+32°C	+25°C	—	3-4 m/s, SE	0 mm	83%
8Mon	+25°C	+22°C	—	3-4 m/s, NNE	0.1 mm	91%
9Tue	+26°C	+22°C	—	3-4 m/s, ENE	0 mm	90%
10Wed	+28°C	+24°C	—	3 m/s, ESE	1.3 mm	90%
11Thu	+29°C	+22°C	—	2-3 m/s, E	8.2 mm	90%
12Fri	+25°C	+21°C	—	3 m/s, N	0 mm	80%
13Sat	+24°C	+21°C	—	2-3 m/s, NNW	2.2 mm	85%
14Sun	+28°C	+21°C	—	1 m/s, NW	0 mm	77%
15Mon	+30°C	+20°C	—	2-3 m/s, S	0 mm	77%
16Tue	+31°C	+23°C	—	2-4 m/s, SSE	0.4 mm	84%
17Wed	+37°C	+25°C	—	2-3 m/s, SW	0 mm	72%
18Thu	+38°C	+25°C	—	2-3 m/s, SSE	0 mm	71%
19Fri	+34°C	+25°C	—	3-4 m/s, SE	0 mm	71%
20Sat	+33°C	+26°C	—	3-4 m/s, SSE	0 mm	77%
21Sun	+35°C	+26°C	—	3-4 m/s, SSE	0 mm	82%
22Mon	+39°C	+26°C	—	3 m/s, SSE	0 mm	76%
23Tue	+32°C	+26°C	—	3-4 m/s, ESE	0 mm	77%
24Wed	+32°C	+25°C	—	3-4 m/s, SSE	1.4 mm	77%
25Thu	+32°C	+25°C	—	3-4 m/s, SSE	3.4 mm	80%
26Fri	+32°C	+25°C	—	3-5 m/s, SSE	0.9 mm	79%
27Sat	+32°C	+25°C	—	2-4 m/s, SSE	1.3 mm	79%
28Sun	+33°C	+25°C	—	2-3 m/s, S	0.1 mm	74%
29Mon	+33°C	+25°C	—	2-3 m/s, SE	0.1 mm	76%
30Tue	+36°C	+25°C	—	1-2 m/s, SSW	0 mm	73%
31Wed	+37°C	+25°C	—	1-3 m/s, S	0 mm	70%

Weather highs and lows in Ha Long for may

Warmest day: 22 may, +39°C
Coldest night: 15 may, +20°C
Max precipitation: 11 may, 8.2 mm
Warmest water: —
Coldest water: —

Climate in Ha Long in may

Year: 2023
Average daytime temperature: +32°C
Average nighttime temperature: +24°C
Water temperature: —
Precipitation (month): 20.8 mm
Days with precipitation: 6
Humidity: 80%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Sun	+24°C	+19°C	—	5-7 m/s, NNE	1.5 mm	75%
2Mon	+25°C	+18°C	—	4-5 m/s, N	0 mm	55%
3Tue	+30°C	+18°C	—	2 m/s, E	0 mm	56%
4Wed	+31°C	+18°C	—	2-3 m/s, SSE	0 mm	57%
5Thu	+31°C	+20°C	—	2-3 m/s, SSE	0 mm	58%
6Fri	+30°C	+21°C	—	2-3 m/s, SSE	0.2 mm	74%
7Sat	+28°C	+23°C	—	2-3 m/s, ESE	5.8 mm	85%
8Sun	+28°C	+23°C	—	2-3 m/s, ESE	2.6 mm	87%
9Mon	+29°C	+23°C	—	2-4 m/s, SSE	1.8 mm	84%
10Tue	+28°C	+23°C	—	2-3 m/s, SSE	3.4 mm	92%
11Wed	+28°C	+24°C	—	2-3 m/s, SSE	1.2 mm	90%
12Thu	+30°C	+24°C	—	2 m/s, S	1.6 mm	86%
13Fri	+26°C	+23°C	—	2-3 m/s, N	1.2 mm	94%
14Sat	+28°C	+23°C	—	2 m/s, ENE	0 mm	86%
15Sun	+24°C	+19°C	—	3-4 m/s, N	0.1 mm	90%
16Mon	+21°C	+18°C	—	3 m/s, NNE	0 mm	73%
17Tue	+27°C	+18°C	—	2-3 m/s, SSE	0 mm	72%
18Wed	+28°C	+21°C	—	2-3 m/s, ESE	0 mm	78%
19Thu	+28°C	+22°C	—	2-3 m/s, ESE	0 mm	85%
20Fri	+30°C	+23°C	—	2-3 m/s, ESE	0 mm	86%
21Sat	+25°C	+23°C	—	2-3 m/s, NE	0 mm	95%
22Sun	+24°C	+23°C	—	3-4 m/s, NE	1.5 mm	96%
23Mon	+26°C	+23°C	—	3 m/s, N	0.3 mm	91%
24Tue	+29°C	+24°C	—	2-3 m/s, SE	2.4 mm	87%
25Wed	+29°C	+24°C	—	1-2 m/s, SSE	2.9 mm	90%
26Thu	+30°C	+24°C	—	2-3 m/s, SE	5.2 mm	84%
27Fri	+32°C	+25°C	—	2-3 m/s, SE	0.5 mm	86%
28Sat	+31°C	+25°C	—	2-3 m/s, SSE	2.6 mm	86%
29Sun	+33°C	+25°C	—	3-4 m/s, SSE	0.8 mm	81%
30Mon	+32°C	+25°C	—	2-3 m/s, SE	3.2 mm	84%
31Tue	+31°C	+25°C	—	3 m/s, SE	0.7 mm	82%

Weather highs and lows in Ha Long for may

Warmest day: 29 may, +33°C
Coldest night: 2 may, +18°C
Max precipitation: 7 may, 5.8 mm
Warmest water: —
Coldest water: —

Climate in Ha Long in may

Year: 2022
Average daytime temperature: +28°C
Average nighttime temperature: +22°C
Water temperature: —
Precipitation (month): 39.5 mm
Days with precipitation: 14
Humidity: 81%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Sat	+28°C	+22°C	—	1-2 m/s, SSE	0.2 mm	81%
2Sun	+27°C	+23°C	—	2-3 m/s, S	3.3 mm	88%
3Mon	+28°C	+23°C	—	3-4 m/s, SSE	3.5 mm	85%
4Tue	+29°C	+24°C	—	3-4 m/s, SSE	0.3 mm	89%
5Wed	+27°C	+23°C	—	1-2 m/s, S	1.2 mm	93%
6Thu	+28°C	+23°C	—	1-2 m/s, ESE	0 mm	84%
7Fri	+28°C	+24°C	—	2-3 m/s, SSE	0.4 mm	83%
8Sat	+29°C	+24°C	—	2-3 m/s, S	0.1 mm	82%
9Sun	+29°C	+25°C	—	2-4 m/s, SSE	0 mm	85%
10Mon	+30°C	+25°C	—	3-4 m/s, SSE	1.4 mm	88%
11Tue	+31°C	+26°C	—	3-4 m/s, S	0.1 mm	83%
12Wed	+32°C	+26°C	—	3-4 m/s, SSE	0.5 mm	82%
13Thu	+32°C	+26°C	—	3-5 m/s, S	0.7 mm	82%
14Fri	+31°C	+25°C	—	3-5 m/s, S	0.8 mm	84%
15Sat	+31°C	+26°C	—	4-5 m/s, S	0.4 mm	82%
16Sun	+31°C	+26°C	—	3-4 m/s, SSE	1 mm	84%
17Mon	+32°C	+26°C	—	2-4 m/s, SSE	0.3 mm	81%
18Tue	+31°C	+26°C	—	3-5 m/s, SSE	1 mm	84%
19Wed	+31°C	+26°C	—	3-5 m/s, SSE	1.1 mm	87%
20Thu	+31°C	+27°C	—	4 m/s, SSE	0.7 mm	85%
21Fri	+31°C	+27°C	—	3-4 m/s, SSE	2.1 mm	85%
22Sat	+32°C	+27°C	—	3-4 m/s, SSE	0.2 mm	83%
23Sun	+33°C	+27°C	—	3-4 m/s, SSE	0.1 mm	78%
24Mon	+32°C	+26°C	—	2-3 m/s, ESE	0 mm	74%
25Tue	+30°C	+24°C	—	3 m/s, ENE	0.2 mm	84%
26Wed	+31°C	+26°C	—	2-3 m/s, SSE	2.6 mm	79%
27Thu	+33°C	+26°C	—	2-3 m/s, SSE	1 mm	76%
28Fri	+32°C	+26°C	—	2-3 m/s, SSE	1.6 mm	74%
29Sat	+33°C	+26°C	—	2-4 m/s, SSE	0.4 mm	78%
30Sun	+34°C	+27°C	—	2-3 m/s, SSE	0.1 mm	81%
31Mon	+35°C	+27°C	—	2 m/s, SSE	0 mm	79%

Weather highs and lows in Ha Long for may

Warmest day: 31 may, +35°C
Coldest night: 1 may, +22°C
Max precipitation: 3 may, 3.5 mm
Warmest water: —
Coldest water: —

Climate in Ha Long in may

Year: 2021
Average daytime temperature: +31°C
Average nighttime temperature: +25°C
Water temperature: —
Precipitation (month): 25.3 mm
Days with precipitation: 11
Humidity: 83%
Wind: 2 m/s

Daily air temperature for the month

Day Night

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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Fri	+26°C	+22°C	—	2-3 m/s, SSE	0 mm	86%
2Sat	+28°C	+22°C	—	2-3 m/s, S	0.8 mm	83%
3Sun	+30°C	+24°C	—	2-3 m/s, S	0 mm	81%
4Mon	+31°C	+24°C	—	2-3 m/s, SSE	0 mm	84%
5Tue	+31°C	+25°C	—	2-4 m/s, SSE	0 mm	83%
6Wed	+32°C	+25°C	—	2-4 m/s, SSE	0 mm	82%
7Thu	+32°C	+25°C	—	3-4 m/s, SSE	0 mm	81%
8Fri	+32°C	+26°C	—	3-5 m/s, SSE	0 mm	84%
9Sat	+33°C	+27°C	—	2-4 m/s, SSE	0 mm	83%
10Sun	+33°C	+26°C	—	2-3 m/s, SSE	0 mm	83%
11Mon	+32°C	+26°C	—	2-3 m/s, SSE	0 mm	81%
12Tue	+29°C	+25°C	—	1-3 m/s, S	1 mm	84%
13Wed	+31°C	+24°C	—	2-4 m/s, S	0.2 mm	77%
14Thu	+30°C	+25°C	—	3-5 m/s, S	0.5 mm	85%
15Fri	+31°C	+25°C	—	3-4 m/s, SSE	0.2 mm	83%
16Sat	+32°C	+25°C	—	3-4 m/s, SSE	0.3 mm	82%
17Sun	+31°C	+25°C	—	3-4 m/s, SSE	4.2 mm	81%
18Mon	+29°C	+24°C	—	2-3 m/s, SE	0.7 mm	89%
19Tue	+32°C	+24°C	—	2-3 m/s, SSE	0.1 mm	82%
20Wed	+33°C	+26°C	—	3-4 m/s, SSE	0.6 mm	80%
21Thu	+36°C	+28°C	—	2-3 m/s, SSW	0 mm	73%
22Fri	+32°C	+27°C	—	2-3 m/s, NE	0.1 mm	76%
23Sat	+32°C	+26°C	—	1-2 m/s, S	1.2 mm	80%
24Sun	+32°C	+25°C	—	1-3 m/s, SE	1.2 mm	77%
25Mon	+33°C	+26°C	—	2-3 m/s, S	0.2 mm	80%
26Tue	+31°C	+26°C	—	3-4 m/s, ENE	1.1 mm	82%
27Wed	+31°C	+25°C	—	1-2 m/s, S	0.4 mm	80%
28Thu	+31°C	+24°C	—	1-2 m/s, SW	0 mm	74%
29Fri	+31°C	+25°C	—	2-3 m/s, S	1.8 mm	75%
30Sat	+32°C	+26°C	—	2-4 m/s, SSE	0.5 mm	81%
31Sun	+33°C	+27°C	—	3-4 m/s, S	0.3 mm	78%

Weather highs and lows in Ha Long for may

Warmest day: 21 may, +36°C
Coldest night: 1 may, +22°C
Max precipitation: 17 may, 4.2 mm
Warmest water: —
Coldest water: —

Climate in Ha Long in may

Year: 2020
Average daytime temperature: +31°C
Average nighttime temperature: +25°C
Water temperature: —
Precipitation (month): 15.4 mm
Days with precipitation: 6
Humidity: 81%
Wind: 2 m/s

Daily air temperature for the month

Day Night

Tap a date to open detailed weather for that day

May	Day	Night	Sea t°	Wind	Precip	Humidity
1Wed	+29°C	+23°C	—	2-3 m/s, SE	1.4 mm	71%
2Thu	+30°C	+23°C	—	2-3 m/s, S	0 mm	66%
3Fri	+28°C	+23°C	—	3-4 m/s, E	0.1 mm	79%
4Sat	+28°C	+23°C	—	3-4 m/s, E	3.3 mm	88%
5Sun	+30°C	+24°C	—	2-3 m/s, SSE	0.5 mm	90%
6Mon	+29°C	+24°C	—	3-4 m/s, E	0.1 mm	90%
7Tue	+29°C	+24°C	—	4-5 m/s, E	4.5 mm	87%
8Wed	+28°C	+22°C	—	3 m/s, ESE	4.8 mm	88%
9Thu	+26°C	+22°C	—	2-3 m/s, ESE	0.9 mm	84%
10Fri	+29°C	+21°C	—	2-3 m/s, ESE	0.1 mm	76%
11Sat	+30°C	+24°C	—	2-3 m/s, ESE	0.4 mm	81%
12Sun	+31°C	+24°C	—	2-3 m/s, SE	0.1 mm	84%
13Mon	+31°C	+25°C	—	2-3 m/s, SSE	0 mm	84%
14Tue	+31°C	+25°C	—	2-4 m/s, SSE	0.7 mm	83%
15Wed	+32°C	+26°C	—	3-4 m/s, S	0.4 mm	82%
16Thu	+32°C	+27°C	—	3-4 m/s, S	1.1 mm	83%
17Fri	+35°C	+27°C	—	3 m/s, S	0 mm	75%
18Sat	+36°C	+28°C	—	3-4 m/s, S	0 mm	72%
19Sun	+36°C	+28°C	—	3-4 m/s, S	0 mm	72%
20Mon	+34°C	+26°C	—	2-3 m/s, ESE	0.1 mm	79%
21Tue	+28°C	+24°C	—	2-3 m/s, SSE	4.1 mm	88%
22Wed	+30°C	+25°C	—	2-3 m/s, SSE	0.8 mm	74%
23Thu	+32°C	+24°C	—	2 m/s, SSE	0.7 mm	74%
24Fri	+32°C	+25°C	—	2-4 m/s, SSE	0.9 mm	76%
25Sat	+31°C	+26°C	—	3-5 m/s, SSE	2.4 mm	86%
26Sun	+33°C	+27°C	—	3-4 m/s, SSE	0.6 mm	81%
27Mon	+32°C	+27°C	—	2-3 m/s, SSE	3 mm	85%
28Tue	+29°C	+26°C	—	2-3 m/s, SE	3.6 mm	88%
29Wed	+28°C	+25°C	—	2 m/s, ESE	8.5 mm	85%
30Thu	+29°C	+25°C	—	2-3 m/s, ESE	1.2 mm	86%
31Fri	+28°C	+24°C	—	2 m/s, S	3.8 mm	87%

Weather highs and lows in Ha Long for may

Warmest day: 18 may, +36°C
Coldest night: 10 may, +21°C
Max precipitation: 29 may, 8.5 mm
Warmest water: —
Coldest water: —

Climate in Ha Long in may

Year: 2019
Average daytime temperature: +31°C
Average nighttime temperature: +25°C
Water temperature: —
Precipitation (month): 48.1 mm
Days with precipitation: 12
Humidity: 81%
Wind: 2 m/s

Weather in Ha Long in may by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+29°C	+23°C	30.5 mm	9	+27°C
2024	+30°C	+24°C	50 mm	12	—
2023	+32°C	+24°C	20.8 mm	6	—
2022	+28°C	+22°C	39.5 mm	14	—
2021	+31°C	+25°C	25.3 mm	11	—
2020	+31°C	+25°C	15.4 mm	6	—
2019	+31°C	+25°C	48.1 mm	12	—

Comparison may in Ha Long with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+20°C	+14°C	1	5
February	+21°C	+16°C	3	3
March	+24°C	+19°C	2	3
April	+28°C	+22°C	4	3
May	+30°C	+24°C	10	2
June	+32°C	+26°C	14	2
July	+32°C	+26°C	11	3
August	+31°C	+25°C	17	1
September	+31°C	+24°C	12	4
October	+28°C	+21°C	5	6
November	+26°C	+19°C	2	8
December	+22°C	+15°C	0	6