Koh Samui (Thailand) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 23° Celsius; -
Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 23° Celsius;
-
Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 23° Celsius;
-
Maximum daytime temperature: 30° Celsius; Minimum nighttime temperature: 24° Celsius;
Maximum daytime temperature: 30° Celsius; Minimum nighttime temperature: 24° Celsius;
-
Maximum daytime temperature: 30° Celsius; Minimum nighttime temperature: 24° Celsius;
Maximum daytime temperature: 30° Celsius; Minimum nighttime temperature: 24° Celsius;
-
Maximum daytime temperature: 31° Celsius; Minimum nighttime temperature: 24° Celsius;
Maximum daytime temperature: 31° Celsius; Minimum nighttime temperature: 24° Celsius;
-
Maximum daytime temperature: 30° Celsius; Minimum nighttime temperature: 24° Celsius;
Maximum daytime temperature: 30° Celsius; Minimum nighttime temperature: 24° Celsius;
-
Maximum daytime temperature: 30° Celsius;
Maximum daytime temperature: 30° Celsius;
Sunny.
Sunrise:
Sunset:
Ex UV
No pollution data.
No pollen data.
8 day forecast for Koh Samui
Today (17 May 2025)
| Time |
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
|
|
|
|
|
|
 |
|
|
|
|
|
| Chance of precipitation |
20%
|
30%
|
20%
|
10%
|
10%
|
10%
|
10%
|
20%
|
20%
|
10%
|
10%
|
20%
|
20%
|
| Temperature |
28°
|
28°
|
27°
|
28°
|
28°
|
27°
|
27°
|
26°
|
25°
|
25°
|
24°
|
24°
|
24°
|
| Feels like temperature (°C) |
31°
|
31°
|
30°
|
30°
|
30°
|
29°
|
28°
|
28°
|
26°
|
26°
|
26°
|
25°
|
25°
|
| Wind direction and speed |
NE
4
|
NE
5
|
ENE
6
|
ENE
6
|
ENE
7
|
ENE
7
|
ENE
7
|
E
7
|
E
7
|
ESE
7
|
ESE
7
|
SE
7
|
SE
6
|
| Wind gust (mph) |
9
|
10
|
10
|
11
|
11
|
12
|
12
|
11
|
11
|
11
|
11
|
10
|
10
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
| UV | 12 | 11 | 10 | 8 | 5 | 2 | 1 | - | - | - | - | - | - |
Monday (18 May 2025)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
20%
|
30%
|
30%
|
20%
|
10%
|
10%
|
10%
|
20%
|
20%
|
10%
|
20%
|
10%
|
<5%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
24°
|
24°
|
23°
|
23°
|
23°
|
23°
|
23°
|
24°
|
25°
|
26°
|
27°
|
28°
|
28°
|
29°
|
29°
|
29°
|
28°
|
28°
|
27°
|
25°
|
25°
|
25°
|
25°
|
24°
|
| Feels like temperature (°C) |
25°
|
25°
|
25°
|
25°
|
25°
|
25°
|
24°
|
26°
|
27°
|
28°
|
30°
|
31°
|
31°
|
32°
|
32°
|
32°
|
30°
|
30°
|
29°
|
27°
|
26°
|
26°
|
26°
|
26°
|
| Wind direction and speed (mph) |
SSE
5
|
SSE
5
|
SSE
4
|
S
4
|
S
4
|
SSW
4
|
SSW
4
|
SW
4
|
SW
5
|
WSW
5
|
W
5
|
NW
5
|
NNW
5
|
N
5
|
NNE
5
|
NE
5
|
NE
6
|
NNE
6
|
NE
5
|
NE
5
|
ENE
6
|
E
6
|
E
6
|
E
6
|
| Wind gust (mph) |
10
|
9
|
8
|
8
|
8
|
8
|
9
|
9
|
10
|
9
|
9
|
9
|
10
|
10
|
9
|
10
|
10
|
10
|
10
|
10
|
10
|
10
|
10
|
9
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
76%
|
77%
|
76%
|
77%
|
77%
|
77%
|
77%
|
78%
|
77%
|
77%
|
76%
|
76%
|
77%
|
76%
|
76%
|
77%
|
76%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
| UV | - | - | - | - | - | - | - | 1 | 4 | 7 | 8 | 10 | 11 | 10 | 9 | 5 | 3 | 1 | - | - | - | - | - | - |
Tuesday (19 May 2025)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
30%
|
20%
|
30%
|
20%
|
30%
|
40%
|
40%
|
30%
|
10%
|
20%
|
10%
|
20%
|
| Temperature (°C) |
24°
|
24°
|
24°
|
24°
|
24°
|
23°
|
23°
|
24°
|
28°
|
28°
|
28°
|
25°
|
24°
|
| Feels like temperature (°C) |
26°
|
25°
|
25°
|
25°
|
25°
|
25°
|
24°
|
26°
|
30°
|
31°
|
30°
|
27°
|
26°
|
| Wind direction and speed (mph) |
E
5
|
E
5
|
E
5
|
SSE
4
|
WSW
4
|
WSW
5
|
WSW
5
|
WSW
5
|
W
4
|
NNW
4
|
NNE
5
|
E
5
|
S
5
|
| Wind gust (mph) |
9
|
9
|
9
|
9
|
9
|
9
|
10
|
10
|
10
|
10
|
10
|
10
|
11
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
75%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
77%
|
76%
|
75%
|
75%
|
75%
|
| UV | - | - | - | - | - | - | - | 1 | 10 | 11 | 2 | - | - |
Wednesday (20 May 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
30%
|
30%
|
20%
|
10%
|
10%
|
20%
|
30%
|
50%
|
| Temperature (°C) |
24°
|
24°
|
24°
|
28°
|
30°
|
29°
|
26°
|
25°
|
| Feels like temperature (°C) |
25°
|
24°
|
25°
|
30°
|
33°
|
31°
|
28°
|
26°
|
| Wind direction and speed (mph) |
SW
6
|
WSW
6
|
WSW
7
|
WNW
6
|
NW
5
|
NNW
5
|
ESE
4
|
SW
7
|
| Wind gust (mph) |
11
|
11
|
11
|
10
|
11
|
9
|
11
|
13
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
76%
|
76%
|
76%
|
76%
|
75%
|
75%
|
74%
|
75%
|
| UV | - | - | 1 | 9 | 11 | 3 | - | - |
Thursday (21 May 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
|
|
|
|
|
|
 |
| Chance of precipitation |
50%
|
20%
|
40%
|
30%
|
20%
|
30%
|
30%
|
30%
|
| Temperature (°C) |
24°
|
24°
|
25°
|
28°
|
29°
|
29°
|
26°
|
25°
|
| Feels like temperature (°C) |
25°
|
24°
|
25°
|
29°
|
31°
|
30°
|
26°
|
24°
|
| Wind direction and speed (mph) |
W
9
|
W
10
|
WNW
10
|
W
10
|
WNW
9
|
WNW
9
|
W
12
|
W
13
|
| Wind gust (mph) |
17
|
16
|
16
|
16
|
15
|
17
|
19
|
21
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
76%
|
76%
|
76%
|
76%
|
76%
|
74%
|
72%
|
73%
|
| UV | - | - | 1 | 9 | 11 | 3 | - | - |
Friday (22 May 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
 |
|
|
|
|
|
| Chance of precipitation |
40%
|
30%
|
30%
|
10%
|
30%
|
40%
|
60%
|
40%
|
| Temperature (°C) |
25°
|
24°
|
25°
|
28°
|
30°
|
29°
|
26°
|
25°
|
| Feels like temperature (°C) |
23°
|
23°
|
24°
|
29°
|
32°
|
30°
|
26°
|
24°
|
| Wind direction and speed (mph) |
W
14
|
W
14
|
W
14
|
W
13
|
WNW
12
|
WNW
13
|
W
13
|
W
15
|
| Wind gust (mph) |
21
|
20
|
21
|
19
|
19
|
20
|
22
|
21
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
75%
|
76%
|
77%
|
77%
|
76%
|
75%
|
74%
|
75%
|
| UV | - | - | 1 | 9 | 11 | 2 | - | - |
Saturday (23 May 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
 |
|
|
| Chance of precipitation |
40%
|
40%
|
30%
|
20%
|
20%
|
50%
|
60%
|
50%
|
| Temperature (°C) |
25°
|
24°
|
25°
|
28°
|
29°
|
28°
|
26°
|
25°
|
| Feels like temperature (°C) |
24°
|
23°
|
25°
|
29°
|
30°
|
28°
|
25°
|
24°
|
| Wind direction and speed (mph) |
W
14
|
W
14
|
W
13
|
W
12
|
WNW
12
|
W
14
|
W
15
|
W
15
|
| Wind gust (mph) |
21
|
20
|
19
|
18
|
19
|
22
|
23
|
22
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
76%
|
76%
|
78%
|
77%
|
76%
|
75%
|
73%
|
75%
|
| UV | - | - | 1 | 9 | 11 | 2 | - | - |
Sunday (24 May 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
50%
|
50%
|
30%
|
30%
|
30%
|
30%
|
20%
|
10%
|
| Temperature (°C) |
25°
|
24°
|
25°
|
28°
|
29°
|
27°
|
26°
|
25°
|
| Feels like temperature (°C) |
23°
|
23°
|
24°
|
28°
|
29°
|
28°
|
26°
|
25°
|
| Wind direction and speed (mph) |
W
16
|
WSW
16
|
W
13
|
W
13
|
W
12
|
W
12
|
W
11
|
W
12
|
| Wind gust (mph) |
23
|
22
|
20
|
19
|
19
|
18
|
19
|
18
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
76%
|
79%
|
78%
|
77%
|
75%
|
75%
|
73%
|
73%
|
| UV | - | - | 1 | 8 | 10 | 2 | - | - |
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Forecast
Forecast for 11:00 (UTC+7), Sun
Updated 01:22 (UTC+1) on Sun 18 May 2025
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