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May

Samui Weather in May with Sea Temperature

May weather in Samui includes average daytime air +30°C, nighttime +28°C, average sea temperature +32°C. Daily water temperatures usually range from +31°C to +32°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	+30°C	+28°C	+31°C	3 m/s	1.1 mm	72%
2Fri	+30°C	+28°C	+31°C	3 m/s	1.5 mm	73%
3Sat	+30°C	+28°C	+31°C	3 m/s	1.4 mm	75%
4Sun	+30°C	+28°C	+31°C	3 m/s	1.8 mm	73%
5Mon	+30°C	+28°C	+31°C	3 m/s	1.6 mm	72%
6Tue	+30°C	+28°C	+31°C	4 m/s	1.3 mm	73%
7Wed	+30°C	+28°C	+31°C	4 m/s	1.1 mm	75%
8Thu	+30°C	+28°C	+31°C	4 m/s	1.1 mm	72%
9Fri	+30°C	+28°C	+31°C	4 m/s	1.8 mm	74%
10Sat	+30°C	+28°C	+31°C	3 m/s	1.8 mm	73%
11Sun	+31°C	+28°C	+31°C	3 m/s	0.3 mm	73%
12Mon	+30°C	+28°C	+31°C	3 m/s	2 mm	73%
13Tue	+30°C	+28°C	+31°C	3 m/s	0.2 mm	73%
14Wed	+31°C	+28°C	+31°C	3 m/s	0.6 mm	71%
15Thu	+30°C	+29°C	+31°C	3 m/s	1.7 mm	71%
16Fri	+30°C	+28°C	+31°C	3 m/s	1.8 mm	73%
17Sat	+30°C	+27°C	+31°C	3 m/s	1.5 mm	73%
18Sun	+30°C	+28°C	+31°C	3 m/s	1.2 mm	72%
19Mon	+31°C	+28°C	+31°C	3 m/s	0.9 mm	72%
20Tue	+31°C	+29°C	+31°C	4 m/s	0.1 mm	71%
21Wed	+30°C	+28°C	+31°C	4 m/s	0.4 mm	73%
22Thu	+30°C	+28°C	+31°C	5 m/s	0.6 mm	74%
23Fri	+30°C	+28°C	+31°C	4 m/s	0.6 mm	73%
24Sat	+30°C	+28°C	+32°C	4 m/s	1.4 mm	72%
25Sun	+30°C	+28°C	+31°C	5 m/s	0.5 mm	73%
26Mon	+30°C	+28°C	+31°C	4 m/s	1.2 mm	73%
27Tue	+30°C	+28°C	+31°C	4 m/s	0.3 mm	73%
28Wed	+30°C	+27°C	+31°C	4 m/s	1.4 mm	75%
29Thu	+30°C	+28°C	+31°C	4 m/s	1.7 mm	73%
30Fri	+30°C	+28°C	+31°C	4 m/s	0.6 mm	72%
31Sat	+30°C	+27°C	+31°C	4 m/s	2 mm	73%

Sea water temperature by months

Water +31°C

Day and night air temperature

Day +30°C Night +28°C

Weather highs and lows in Samui for may

Warmest day: 19 may, +31°C
Coldest night: 28 may, +27°C
Max precipitation: 12 may, 2 mm
Warmest sea water: 24 may, +32°C
Coldest sea water: 1 may, +31°C

Climate in Samui in may

Average daytime temperature: +30°C
Average nighttime temperature: +28°C
Sea water temperature: +32°C
Precipitation (monthly average): 35.5 mm
Days with precipitation: 10.3
Humidity: 73%
Wind: 4 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	+30°C	+29°C	+31°C	3-4 m/s, WSW	0.2 mm	70%
2Fri	+30°C	+29°C	+31°C	2-4 m/s, WNW	0.1 mm	70%
3Sat	+29°C	+27°C	+31°C	3-4 m/s, SE	3.1 mm	74%
4Sun	+30°C	+28°C	+31°C	2-3 m/s, W	2.5 mm	71%
5Mon	+30°C	+28°C	+31°C	3-4 m/s, WNW	5.6 mm	75%
6Tue	+29°C	+28°C	+31°C	1-2 m/s, W	0.5 mm	70%
7Wed	+30°C	+28°C	+31°C	5-6 m/s, WSW	1.7 mm	74%
8Thu	+30°C	+28°C	+31°C	4-5 m/s, W	0.1 mm	70%
9Fri	+30°C	+29°C	+31°C	3-4 m/s, W	0.1 mm	69%
10Sat	+30°C	+29°C	+31°C	3-4 m/s, W	2.1 mm	72%
11Sun	+31°C	+29°C	+31°C	4-6 m/s, W	0.1 mm	74%
12Mon	+29°C	+28°C	+31°C	5-6 m/s, W	12.7 mm	75%
13Tue	+29°C	+28°C	+31°C	3 m/s, SW	0.3 mm	76%
14Wed	+30°C	+28°C	+31°C	2 m/s, S	0 mm	72%
15Thu	+29°C	+28°C	+31°C	2 m/s, ENE	9.1 mm	73%
16Fri	+30°C	+28°C	+31°C	2-4 m/s, WSW	4.3 mm	72%
17Sat	+30°C	+28°C	+31°C	3-4 m/s, SW	5.5 mm	75%
18Sun	+30°C	+28°C	+31°C	1-2 m/s, W	4.1 mm	72%
19Mon	+30°C	+28°C	+31°C	2 m/s, W	0.7 mm	71%
20Tue	+30°C	+29°C	+31°C	2 m/s, NW	0.2 mm	73%
21Wed	+30°C	+29°C	+31°C	1-2 m/s, WNW	0.2 mm	70%
22Thu	+30°C	+28°C	+31°C	4 m/s, W	1.5 mm	75%
23Fri	+30°C	+29°C	+31°C	5-6 m/s, W	0.1 mm	76%
24Sat	+30°C	+28°C	+32°C	6-7 m/s, W	0.8 mm	76%
25Sun	+29°C	+27°C	+31°C	8-11 m/s, WSW	1.1 mm	77%
26Mon	+29°C	+27°C	+31°C	6-9 m/s, SW	0.1 mm	73%
27Tue	+30°C	+29°C	+31°C	6-9 m/s, WSW	1.3 mm	71%
28Wed	+29°C	+26°C	+31°C	6-8 m/s, W	4.9 mm	81%
29Thu	+30°C	+27°C	+31°C	6-8 m/s, WSW	4.2 mm	78%
30Fri	+30°C	+29°C	+31°C	7-9 m/s, WSW	0.2 mm	70%
31Sat	+30°C	+29°C	+31°C	5 m/s, S	0.8 mm	69%

Weather highs and lows in Samui for may

Warmest day: 11 may, +31°C
Coldest night: 28 may, +26°C
Max precipitation: 12 may, 12.7 mm
Warmest water: 24 may, +32°C
Coldest water: 1 may, +31°C

Climate in Samui in may

Year: 2025
Average daytime temperature: +30°C
Average nighttime temperature: +28°C
Water temperature: +31°C
Precipitation (month): 68.2 mm
Days with precipitation: 15
Humidity: 73%
Wind: 4 m/s

Daily air temperature for the month

Day Night

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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Wed	+31°C	+30°C	—	3-5 m/s, NW	0.2 mm	74%
2Thu	+31°C	+30°C	—	3-5 m/s, SW	0.2 mm	76%
3Fri	+31°C	+30°C	—	3-4 m/s, NNW	0.2 mm	74%
4Sat	+31°C	+29°C	—	3-4 m/s, WNW	0.2 mm	73%
5Sun	+31°C	+29°C	—	4-5 m/s, WNW	0 mm	71%
6Mon	+31°C	+30°C	—	3-4 m/s, WSW	0.1 mm	72%
7Tue	+31°C	+29°C	—	2-3 m/s, SSW	0.3 mm	73%
8Wed	+30°C	+30°C	—	3-4 m/s, SSE	0 mm	69%
9Thu	+31°C	+30°C	—	4-6 m/s, SE	3.6 mm	71%
10Fri	+30°C	+29°C	—	4-5 m/s, SE	7.2 mm	72%
11Sat	+31°C	+30°C	—	4 m/s, ESE	0.1 mm	74%
12Sun	+31°C	+29°C	—	3-4 m/s, SSE	0.2 mm	73%
13Mon	+30°C	+29°C	—	2-3 m/s, WNW	1 mm	72%
14Tue	+31°C	+29°C	—	2-3 m/s, N	0 mm	73%
15Wed	+30°C	+30°C	—	4-5 m/s, SE	0 mm	72%
16Thu	+31°C	+29°C	—	2-4 m/s, S	0.3 mm	70%
17Fri	+30°C	+28°C	—	2-3 m/s, ESE	0.3 mm	71%
18Sat	+30°C	+29°C	—	2-3 m/s, WNW	0.1 mm	74%
19Sun	+31°C	+29°C	—	3 m/s, W	0.1 mm	72%
20Mon	+31°C	+29°C	—	3-5 m/s, WNW	0.7 mm	72%
21Tue	+30°C	+29°C	—	4-6 m/s, SW	0.3 mm	75%
22Wed	+30°C	+28°C	—	4-6 m/s, SW	0 mm	76%
23Thu	+30°C	+28°C	—	3-4 m/s, WSW	1.2 mm	71%
24Fri	+30°C	+29°C	—	3 m/s, WSW	0 mm	67%
25Sat	+31°C	+30°C	—	3 m/s, SE	0.3 mm	68%
26Sun	+31°C	+30°C	—	3-4 m/s, WSW	0.1 mm	68%
27Mon	+31°C	+30°C	—	3-4 m/s, WSW	0.1 mm	70%
28Tue	+31°C	+30°C	—	2-3 m/s, N	1.1 mm	70%
29Wed	+31°C	+30°C	—	3-4 m/s, W	3 mm	72%
30Thu	+31°C	+30°C	—	3-5 m/s, W	0.8 mm	70%
31Fri	+31°C	+26°C	—	5 m/s, W	9.4 mm	74%

Weather highs and lows in Samui for may

Warmest day: 1 may, +31°C
Coldest night: 31 may, +26°C
Max precipitation: 31 may, 9.4 mm
Warmest water: —
Coldest water: —

Climate in Samui in may

Year: 2024
Average daytime temperature: +31°C
Average nighttime temperature: +29°C
Water temperature: —
Precipitation (month): 31.1 mm
Days with precipitation: 7
Humidity: 72%
Wind: 3 m/s

Daily air temperature for the month

Day Night

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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Mon	+30°C	+29°C	—	4-5 m/s, SE	0.3 mm	73%
2Tue	+30°C	+29°C	—	4-5 m/s, SE	2.1 mm	74%
3Wed	+30°C	+29°C	—	4-5 m/s, ESE	2 mm	74%
4Thu	+31°C	+29°C	—	3-4 m/s, W	0.5 mm	73%
5Fri	+32°C	+29°C	—	3-4 m/s, NW	0.1 mm	72%
6Sat	+31°C	+29°C	—	3-4 m/s, WNW	0.2 mm	75%
7Sun	+31°C	+29°C	—	3-4 m/s, W	0.2 mm	74%
8Mon	+31°C	+29°C	—	3-4 m/s, W	0.1 mm	73%
9Tue	+31°C	+29°C	—	3-4 m/s, NW	1.8 mm	74%
10Wed	+30°C	+29°C	—	2-3 m/s, NW	0.6 mm	72%
11Thu	+31°C	+29°C	—	2-4 m/s, SE	0.1 mm	74%
12Fri	+31°C	+29°C	—	2-4 m/s, SSE	0 mm	70%
13Sat	+31°C	+29°C	—	3-5 m/s, SSE	0.1 mm	71%
14Sun	+32°C	+30°C	—	3-4 m/s, W	0.6 mm	66%
15Mon	+32°C	+29°C	—	2-4 m/s, WNW	0.2 mm	68%
16Tue	+30°C	+29°C	—	3-4 m/s, W	0.5 mm	70%
17Wed	+31°C	+29°C	—	3-4 m/s, WNW	0.3 mm	70%
18Thu	+32°C	+29°C	—	5-6 m/s, WNW	0 mm	70%
19Fri	+33°C	+29°C	—	6-7 m/s, W	0.1 mm	73%
20Sat	+31°C	+29°C	—	5-6 m/s, W	0 mm	73%
21Sun	+31°C	+29°C	—	4-5 m/s, W	0.1 mm	73%
22Mon	+30°C	+28°C	—	5 m/s, W	0.1 mm	76%
23Tue	+30°C	+28°C	—	5-6 m/s, W	0.1 mm	72%
24Wed	+31°C	+29°C	—	4-5 m/s, W	0.1 mm	73%
25Thu	+31°C	+29°C	—	5 m/s, W	0.1 mm	73%
26Fri	+32°C	+29°C	—	5-6 m/s, W	0 mm	73%
27Sat	+32°C	+29°C	—	6 m/s, W	0.1 mm	74%
28Sun	+31°C	+28°C	—	6 m/s, W	0.9 mm	75%
29Mon	+30°C	+28°C	—	5-6 m/s, W	3.2 mm	76%
30Tue	+31°C	+29°C	—	6-7 m/s, W	0.2 mm	74%
31Wed	+30°C	+29°C	—	6 m/s, W	0.1 mm	74%

Weather highs and lows in Samui for may

Warmest day: 19 may, +33°C
Coldest night: 22 may, +28°C
Max precipitation: 29 may, 3.2 mm
Warmest water: —
Coldest water: —

Climate in Samui in may

Year: 2023
Average daytime temperature: +31°C
Average nighttime temperature: +29°C
Water temperature: —
Precipitation (month): 14.8 mm
Days with precipitation: 4
Humidity: 73%
Wind: 4 m/s

Daily air temperature for the month

Day Night

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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Sun	+31°C	+28°C	—	2-3 m/s, W	1.4 mm	71%
2Mon	+30°C	+28°C	—	3 m/s, W	6.9 mm	72%
3Tue	+28°C	+27°C	—	2-3 m/s, NE	2.2 mm	80%
4Wed	+29°C	+27°C	—	2-4 m/s, ENE	7.4 mm	76%
5Thu	+29°C	+28°C	—	4 m/s, ESE	3.3 mm	77%
6Fri	+29°C	+28°C	—	5-6 m/s, SSE	1.5 mm	78%
7Sat	+30°C	+28°C	—	6-7 m/s, ESE	0.8 mm	78%
8Sun	+30°C	+28°C	—	5-6 m/s, SE	4.2 mm	75%
9Mon	+29°C	+27°C	—	5-6 m/s, S	6.7 mm	81%
10Tue	+29°C	+28°C	—	2-3 m/s, S	0.1 mm	75%
11Wed	+30°C	+27°C	—	2 m/s, W	0.2 mm	70%
12Thu	+30°C	+29°C	—	4-6 m/s, W	0 mm	74%
13Fri	+30°C	+28°C	—	4 m/s, WSW	0.1 mm	74%
14Sat	+31°C	+29°C	—	3-4 m/s, WSW	1.2 mm	73%
15Sun	+30°C	+29°C	—	3 m/s, W	0 mm	73%
16Mon	+30°C	+27°C	—	5 m/s, W	0.1 mm	78%
17Tue	+30°C	+27°C	—	4 m/s, SW	1.7 mm	76%
18Wed	+29°C	+27°C	—	2 m/s, SW	2.6 mm	72%
19Thu	+30°C	+28°C	—	2-3 m/s, WSW	0.8 mm	71%
20Fri	+31°C	+29°C	—	5 m/s, SW	0 mm	70%
21Sat	+30°C	+29°C	—	6-8 m/s, WSW	0.6 mm	73%
22Sun	+29°C	+28°C	—	7-8 m/s, WSW	0 mm	74%
23Mon	+30°C	+28°C	—	6-7 m/s, WSW	0.2 mm	74%
24Tue	+31°C	+28°C	—	4-5 m/s, WSW	0.2 mm	72%
25Wed	+30°C	+29°C	—	5-6 m/s, WSW	0 mm	74%
26Thu	+30°C	+28°C	—	5-6 m/s, W	0 mm	76%
27Fri	+31°C	+28°C	—	6-7 m/s, W	0 mm	75%
28Sat	+29°C	+27°C	—	7-8 m/s, WSW	0.8 mm	76%
29Sun	+29°C	+28°C	—	7 m/s, W	0 mm	74%
30Mon	+29°C	+28°C	—	6 m/s, W	0.1 mm	76%
31Tue	+30°C	+28°C	—	5-6 m/s, W	0 mm	74%

Weather highs and lows in Samui for may

Warmest day: 1 may, +31°C
Coldest night: 3 may, +27°C
Max precipitation: 4 may, 7.4 mm
Warmest water: —
Coldest water: —

Climate in Samui in may

Year: 2022
Average daytime temperature: +30°C
Average nighttime temperature: +28°C
Water temperature: —
Precipitation (month): 43.1 mm
Days with precipitation: 11
Humidity: 75%
Wind: 4 m/s

Daily air temperature for the month

Day Night

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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Sat	+29°C	+25°C	—	3-4 m/s, ESE	2.7 mm	72%
2Sun	+29°C	+25°C	—	4-5 m/s, E	0.8 mm	72%
3Mon	+30°C	+27°C	—	4-5 m/s, ESE	0.9 mm	73%
4Tue	+30°C	+28°C	—	3-4 m/s, ESE	0 mm	73%
5Wed	+30°C	+26°C	—	3 m/s, SE	0.2 mm	70%
6Thu	+30°C	+24°C	—	4-5 m/s, ESE	5.8 mm	73%
7Fri	+28°C	+23°C	—	5-6 m/s, E	4.8 mm	80%
8Sat	+30°C	+26°C	—	3-4 m/s, ESE	1.7 mm	72%
9Sun	+29°C	+25°C	—	2 m/s, SE	0.6 mm	70%
10Mon	+29°C	+26°C	—	2-3 m/s, WNW	0.1 mm	71%
11Tue	+29°C	+26°C	—	2-4 m/s, W	0.2 mm	72%
12Wed	+30°C	+26°C	—	2-3 m/s, E	0 mm	71%
13Thu	+30°C	+26°C	—	3-4 m/s, SE	0.2 mm	70%
14Fri	+30°C	+27°C	—	2-3 m/s, SSW	0.5 mm	70%
15Sat	+30°C	+27°C	—	3 m/s, SSE	1.3 mm	70%
16Sun	+30°C	+26°C	—	2-3 m/s, SW	7 mm	71%
17Mon	+30°C	+25°C	—	2-3 m/s, WNW	2 mm	70%
18Tue	+30°C	+26°C	—	2 m/s, WNW	1.6 mm	72%
19Wed	+30°C	+26°C	—	4-5 m/s, WNW	1.3 mm	73%
20Thu	+31°C	+28°C	—	5-6 m/s, WSW	0.1 mm	70%
21Fri	+30°C	+26°C	—	6-7 m/s, W	1.1 mm	71%
22Sat	+30°C	+27°C	—	6-8 m/s, W	0.2 mm	71%
23Sun	+30°C	+27°C	—	5 m/s, W	0 mm	72%
24Mon	+30°C	+26°C	—	5-6 m/s, W	0 mm	72%
25Tue	+30°C	+26°C	—	5-7 m/s, WSW	2.1 mm	71%
26Wed	+29°C	+26°C	—	5-6 m/s, W	1.3 mm	72%
27Thu	+28°C	+26°C	—	5-6 m/s, WSW	0.9 mm	76%
28Fri	+28°C	+24°C	—	5-6 m/s, WSW	0.6 mm	76%
29Sat	+29°C	+26°C	—	2-4 m/s, ESE	0 mm	71%
30Sun	+29°C	+26°C	—	1-3 m/s, E	1.7 mm	70%
31Mon	+29°C	+26°C	—	2 m/s, WSW	0.1 mm	74%

Weather highs and lows in Samui for may

Warmest day: 20 may, +31°C
Coldest night: 7 may, +23°C
Max precipitation: 16 may, 7 mm
Warmest water: —
Coldest water: —

Climate in Samui in may

Year: 2021
Average daytime temperature: +30°C
Average nighttime temperature: +26°C
Water temperature: —
Precipitation (month): 39.8 mm
Days with precipitation: 13
Humidity: 72%
Wind: 3 m/s

Daily air temperature for the month

Day Night

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May	Day	Night	Sea t°	Wind	Precip	Humidity
1Fri	+29°C	+26°C	—	3-4 m/s, SE	2.6 mm	73%
2Sat	+30°C	+28°C	—	3-4 m/s, SE	0.1 mm	72%
3Sun	+29°C	+26°C	—	3-4 m/s, SSE	0 mm	74%
4Mon	+30°C	+27°C	—	3-4 m/s, SE	0.1 mm	71%
5Tue	+30°C	+26°C	—	2-3 m/s, SE	0 mm	68%
6Wed	+30°C	+27°C	—	3-4 m/s, SE	0 mm	70%
7Thu	+30°C	+28°C	—	3-4 m/s, SE	0.1 mm	71%
8Fri	+30°C	+27°C	—	3-4 m/s, SE	0.5 mm	72%
9Sat	+31°C	+29°C	—	3-4 m/s, SE	0 mm	73%
10Sun	+30°C	+27°C	—	4 m/s, SE	0.9 mm	76%
11Mon	+31°C	+30°C	—	4 m/s, SE	0.7 mm	73%
12Tue	+30°C	+29°C	—	3-5 m/s, ESE	1 mm	73%
13Wed	+30°C	+28°C	—	5 m/s, SE	0 mm	72%
14Thu	+30°C	+28°C	—	4-5 m/s, ESE	0 mm	70%
15Fri	+30°C	+29°C	—	4 m/s, SE	0.1 mm	72%
16Sat	+30°C	+30°C	—	3-4 m/s, SE	0.3 mm	72%
17Sun	+30°C	+26°C	—	4 m/s, SSW	0.2 mm	73%
18Mon	+31°C	+30°C	—	3 m/s, W	0 mm	70%
19Tue	+31°C	+28°C	—	2-3 m/s, S	2 mm	70%
20Wed	+31°C	+28°C	—	3 m/s, S	0 mm	68%
21Thu	+31°C	+28°C	—	5-6 m/s, W	0.6 mm	71%
22Fri	+30°C	+26°C	—	3-5 m/s, NW	1.6 mm	72%
23Sat	+30°C	+26°C	—	3-5 m/s, WNW	0.1 mm	73%
24Sun	+31°C	+26°C	—	3-4 m/s, WSW	8.3 mm	72%
25Mon	+30°C	+27°C	—	3 m/s, W	0.2 mm	72%
26Tue	+30°C	+25°C	—	2 m/s, WNW	6.6 mm	72%
27Wed	+30°C	+26°C	—	2-3 m/s, SSW	0 mm	70%
28Thu	+30°C	+26°C	—	2-3 m/s, W	0.1 mm	72%
29Fri	+30°C	+27°C	—	2 m/s, SSE	1.6 mm	69%
30Sat	+30°C	+26°C	—	2-3 m/s, ESE	0.5 mm	68%
31Sun	+30°C	+26°C	—	1-2 m/s, WNW	2.4 mm	70%

Weather highs and lows in Samui for may

Warmest day: 9 may, +31°C
Coldest night: 26 may, +25°C
Max precipitation: 24 may, 8.3 mm
Warmest water: —
Coldest water: —

Climate in Samui in may

Year: 2020
Average daytime temperature: +30°C
Average nighttime temperature: +27°C
Water temperature: —
Precipitation (month): 30.6 mm
Days with precipitation: 8
Humidity: 71%
Wind: 3 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	+31°C	+29°C	—	3-4 m/s, NW	0 mm	74%
2Thu	+31°C	+29°C	—	3-4 m/s, NW	0 mm	74%
3Fri	+31°C	+30°C	—	2 m/s, NNW	1.3 mm	73%
4Sat	+31°C	+30°C	—	2 m/s, NW	2 mm	72%
5Sun	+31°C	+29°C	—	4 m/s, W	1.7 mm	74%
6Mon	+30°C	+29°C	—	6 m/s, W	1.2 mm	74%
7Tue	+31°C	+29°C	—	6-7 m/s, W	0 mm	74%
8Wed	+31°C	+29°C	—	6-7 m/s, W	1.1 mm	73%
9Thu	+30°C	+28°C	—	6 m/s, W	0.1 mm	77%
10Fri	+31°C	+28°C	—	4-6 m/s, W	1.5 mm	76%
11Sat	+31°C	+28°C	—	4-5 m/s, W	0.4 mm	75%
12Sun	+31°C	+28°C	—	4-5 m/s, W	0 mm	76%
13Mon	+30°C	+28°C	—	4-5 m/s, W	0 mm	74%
14Tue	+30°C	+28°C	—	3-4 m/s, W	2.2 mm	72%
15Wed	+30°C	+29°C	—	3-4 m/s, W	1 mm	72%
16Thu	+30°C	+29°C	—	4 m/s, W	0 mm	75%
17Fri	+30°C	+28°C	—	5-6 m/s, W	0.4 mm	76%
18Sat	+31°C	+28°C	—	4-5 m/s, W	0.3 mm	75%
19Sun	+31°C	+29°C	—	4-5 m/s, W	1 mm	73%
20Mon	+31°C	+29°C	—	3-4 m/s, W	0 mm	73%
21Tue	+31°C	+29°C	—	3-4 m/s, WNW	0 mm	76%
22Wed	+30°C	+28°C	—	3-4 m/s, WNW	1.1 mm	76%
23Thu	+30°C	+29°C	—	3-4 m/s, WSW	2.2 mm	74%
24Fri	+30°C	+29°C	—	4 m/s, WNW	0.2 mm	73%
25Sat	+31°C	+29°C	—	4-5 m/s, W	0 mm	74%
26Sun	+30°C	+29°C	—	5 m/s, W	0 mm	76%
27Mon	+30°C	+29°C	—	3-4 m/s, WSW	0 mm	72%
28Tue	+30°C	+28°C	—	2-3 m/s, W	1.3 mm	74%
29Wed	+30°C	+28°C	—	2-3 m/s, SSE	0.1 mm	74%
30Thu	+29°C	+28°C	—	2 m/s, SSE	1 mm	77%
31Fri	+30°C	+27°C	—	2 m/s, SE	1.1 mm	74%

Weather highs and lows in Samui for may

Warmest day: 1 may, +31°C
Coldest night: 31 may, +27°C
Max precipitation: 14 may, 2.2 mm
Warmest water: —
Coldest water: —

Climate in Samui in may

Year: 2019
Average daytime temperature: +31°C
Average nighttime temperature: +29°C
Water temperature: —
Precipitation (month): 21.2 mm
Days with precipitation: 14
Humidity: 74%
Wind: 4 m/s

Weather in Samui in may by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+30°C	+28°C	68.2 mm	15	+31°C
2024	+31°C	+29°C	31.1 mm	7	—
2023	+31°C	+29°C	14.8 mm	4	—
2022	+30°C	+28°C	43.1 mm	11	—
2021	+30°C	+26°C	39.8 mm	13	—
2020	+30°C	+27°C	30.6 mm	8	—
2019	+31°C	+29°C	21.2 mm	14	—

Comparison may in Samui with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+28°C	+26°C	2	4
February	+28°C	+26°C	4	6
March	+29°C	+27°C	2	9
April	+30°C	+28°C	6	9
May	+30°C	+28°C	10	3
June	+30°C	+28°C	6	2
July	+30°C	+27°C	6	3
August	+29°C	+27°C	6	2
September	+29°C	+27°C	8	2
October	+29°C	+27°C	16	1
November	+28°C	+26°C	13	1
December	+28°C	+26°C	6	3