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: 28° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 28° Celsius; Minimum nighttime temperature: 23° Celsius;
-
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 22° Celsius;
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 22° Celsius;
-
Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 22° Celsius;
Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 22° Celsius; -
Maximum daytime temperature: 31° Celsius; Minimum nighttime temperature: 22° Celsius;
Maximum daytime temperature: 31° Celsius; Minimum nighttime temperature: 22° Celsius;
-
Maximum daytime temperature: 31° Celsius; Minimum nighttime temperature: 22° Celsius;
Maximum daytime temperature: 31° Celsius; Minimum nighttime temperature: 22° Celsius;
-
Maximum daytime temperature: 31° Celsius; Minimum nighttime temperature: 22° Celsius;
Maximum daytime temperature: 31° Celsius; Minimum nighttime temperature: 22° Celsius;
Sunny intervals changing to partly cloudy by early evening.
Sunrise:
Sunset:
Ex UV
No pollution data.
No pollen data.
7 day forecast for Koh Samui
Today (13 August 2025)
| Time |
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|
| Weather symbols |  |
|
 |
|
|
|
|
| Chance of precipitation |
30%
|
30%
|
30%
|
20%
|
20%
|
20%
|
10%
|
| Temperature |
27°
|
27°
|
25°
|
24°
|
24°
|
24°
|
24°
|
| Feels like temperature (°C) |
26°
|
25°
|
23°
|
22°
|
22°
|
22°
|
22°
|
| Wind direction and speed |
W
16
|
W
17
|
W
17
|
W
16
|
W
15
|
W
15
|
W
15
|
| Wind gust (mph) |
23
|
23
|
23
|
22
|
22
|
22
|
22
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
73%
|
73%
|
72%
|
72%
|
74%
|
75%
|
75%
|
| UV | 1 | - | - | - | - | - | - |
Friday (14 August 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%
|
40%
|
40%
|
50%
|
40%
|
40%
|
30%
|
50%
|
40%
|
50%
|
40%
|
50%
|
60%
|
60%
|
60%
|
40%
|
30%
|
40%
|
30%
|
40%
|
40%
|
| Temperature (°C) |
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
24°
|
25°
|
26°
|
26°
|
27°
|
27°
|
27°
|
26°
|
26°
|
25°
|
25°
|
24°
|
24°
|
24°
|
23°
|
23°
|
| Feels like temperature (°C) |
22°
|
22°
|
21°
|
21°
|
21°
|
21°
|
21°
|
21°
|
23°
|
24°
|
24°
|
25°
|
25°
|
25°
|
24°
|
24°
|
23°
|
22°
|
22°
|
21°
|
20°
|
20°
|
20°
|
20°
|
| Wind direction and speed (mph) |
WSW
15
|
WSW
15
|
WSW
16
|
WSW
16
|
WSW
17
|
WSW
17
|
WSW
17
|
WSW
17
|
WSW
17
|
WSW
16
|
W
17
|
W
18
|
W
19
|
W
19
|
W
20
|
W
21
|
W
22
|
W
22
|
W
22
|
W
21
|
W
22
|
W
20
|
W
20
|
W
20
|
| Wind gust (mph) |
22
|
22
|
23
|
24
|
24
|
24
|
25
|
24
|
24
|
24
|
25
|
27
|
27
|
28
|
29
|
31
|
32
|
31
|
30
|
31
|
30
|
28
|
28
|
28
|
| 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 |
75%
|
76%
|
77%
|
77%
|
81%
|
84%
|
84%
|
83%
|
83%
|
82%
|
79%
|
77%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
77%
|
76%
|
77%
|
77%
|
78%
|
79%
|
| UV | - | - | - | - | - | - | - | 1 | 2 | 5 | 5 | 4 | 5 | 4 | 5 | 2 | 2 | 1 | - | - | - | - | - | - |
Saturday (15 August 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 |
40%
|
30%
|
30%
|
40%
|
50%
|
40%
|
40%
|
40%
|
50%
|
40%
|
50%
|
50%
|
40%
|
| Temperature (°C) |
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
25°
|
26°
|
27°
|
24°
|
24°
|
| Feels like temperature (°C) |
20°
|
20°
|
20°
|
20°
|
20°
|
20°
|
20°
|
21°
|
24°
|
25°
|
25°
|
22°
|
21°
|
| Wind direction and speed (mph) |
W
19
|
WSW
20
|
WSW
19
|
WSW
19
|
WSW
19
|
WSW
19
|
WSW
18
|
WSW
18
|
WSW
17
|
W
18
|
W
18
|
WSW
18
|
WSW
17
|
| Wind gust (mph) |
28
|
28
|
27
|
28
|
26
|
27
|
26
|
26
|
26
|
26
|
27
|
25
|
24
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
83%
|
82%
|
83%
|
84%
|
83%
|
83%
|
84%
|
84%
|
79%
|
76%
|
75%
|
75%
|
77%
|
| UV | - | - | - | - | - | - | - | 1 | 4 | 6 | 1 | - | - |
Sunday (16 August 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
 |
|
|
 |
|
| Chance of precipitation |
40%
|
20%
|
20%
|
30%
|
30%
|
20%
|
10%
|
<5%
|
| Temperature (°C) |
23°
|
23°
|
23°
|
26°
|
28°
|
27°
|
25°
|
24°
|
| Feels like temperature (°C) |
21°
|
21°
|
21°
|
26°
|
29°
|
27°
|
24°
|
22°
|
| Wind direction and speed (mph) |
WSW
16
|
WSW
16
|
WSW
15
|
WSW
14
|
W
13
|
W
12
|
W
12
|
WSW
13
|
| Wind gust (mph) |
24
|
23
|
21
|
20
|
19
|
18
|
18
|
18
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
82%
|
83%
|
83%
|
79%
|
75%
|
71%
|
73%
|
74%
|
| UV | - | - | 1 | 6 | 8 | 2 | - | - |
Monday (17 August 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
23°
|
22°
|
23°
|
28°
|
30°
|
29°
|
26°
|
24°
|
| Feels like temperature (°C) |
22°
|
21°
|
23°
|
29°
|
33°
|
32°
|
27°
|
25°
|
| Wind direction and speed (mph) |
WSW
13
|
WSW
12
|
WSW
11
|
WSW
10
|
W
7
|
NNW
6
|
NNW
7
|
WSW
7
|
| Wind gust (mph) |
18
|
17
|
16
|
14
|
12
|
11
|
12
|
13
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
76%
|
76%
|
75%
|
75%
|
72%
|
74%
|
73%
|
72%
|
| UV | - | - | 1 | 8 | 11 | 3 | - | - |
Tuesday (18 August 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
23°
|
22°
|
23°
|
28°
|
31°
|
30°
|
26°
|
24°
|
| Feels like temperature (°C) |
23°
|
22°
|
23°
|
29°
|
34°
|
32°
|
27°
|
25°
|
| Wind direction and speed (mph) |
SW
8
|
WSW
9
|
WSW
9
|
WSW
8
|
WSW
6
|
N
6
|
ENE
6
|
NNW
5
|
| Wind gust (mph) |
16
|
14
|
14
|
12
|
10
|
10
|
10
|
13
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
75%
|
74%
|
74%
|
73%
|
69%
|
73%
|
71%
|
73%
|
| UV | - | - | 1 | 9 | 12 | 3 | - | - |
Wednesday (19 August 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
10%
|
<5%
|
<5%
|
10%
|
10%
|
20%
|
30%
|
| Temperature (°C) |
23°
|
22°
|
23°
|
28°
|
31°
|
30°
|
26°
|
24°
|
| Feels like temperature (°C) |
24°
|
22°
|
23°
|
30°
|
34°
|
32°
|
27°
|
25°
|
| Wind direction and speed (mph) |
WSW
7
|
SW
8
|
SW
9
|
SW
8
|
SSE
6
|
ESE
8
|
SE
8
|
SSE
6
|
| Wind gust (mph) |
13
|
14
|
14
|
12
|
12
|
13
|
13
|
11
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
75%
|
75%
|
74%
|
73%
|
71%
|
73%
|
74%
|
74%
|
| UV | - | - | 1 | 10 | 12 | 3 | - | - |
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Forecast for 17:00 (UTC+7), Thu
Updated 07:29 (UTC+1) on Thu 14 Aug 2025
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