Koh Samui (Thailand) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 23° Celsius;
Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 23° Celsius; -
Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 22° Celsius;
Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 22° Celsius; -
Maximum daytime temperature: 25° Celsius; Minimum nighttime temperature: 22° Celsius;
Maximum daytime temperature: 25° Celsius; Minimum nighttime temperature: 22° Celsius; -
Maximum daytime temperature: 25° Celsius; Minimum nighttime temperature: 22° Celsius;
Maximum daytime temperature: 25° Celsius; Minimum nighttime temperature: 22° Celsius;
-
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 22° Celsius;
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 22° Celsius;
-
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 22° Celsius;
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 22° Celsius;
-
Maximum daytime temperature: 28° Celsius; Minimum nighttime temperature: 22° Celsius;
Maximum daytime temperature: 28° Celsius; Minimum nighttime temperature: 22° Celsius;
Light showers changing to sunny intervals by late morning.
Sunrise:
Sunset:
H UV
No pollution data.
No pollen data.
7 day forecast for Koh Samui
Today (21 October 2025)
| Time |
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 |
50%
|
60%
|
60%
|
60%
|
40%
|
50%
|
50%
|
40%
|
30%
|
20%
|
10%
|
20%
|
30%
|
20%
|
20%
|
20%
|
30%
|
20%
|
| Temperature |
23°
|
23°
|
24°
|
25°
|
25°
|
25°
|
24°
|
25°
|
25°
|
25°
|
25°
|
25°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
| Feels like temperature (°C) |
22°
|
23°
|
24°
|
25°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
23°
|
22°
|
23°
|
23°
|
23°
|
23°
|
| Wind direction and speed |
WNW
12
|
WNW
12
|
NW
12
|
NNW
13
|
NNW
14
|
NNW
13
|
NNW
14
|
N
13
|
N
13
|
N
14
|
N
15
|
N
15
|
N
15
|
NNE
15
|
NNE
15
|
NNE
14
|
NNE
14
|
NNE
13
|
| Wind gust (mph) |
17
|
18
|
19
|
20
|
21
|
21
|
20
|
20
|
20
|
21
|
22
|
22
|
22
|
21
|
21
|
20
|
19
|
18
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
81%
|
82%
|
82%
|
82%
|
83%
|
84%
|
82%
|
79%
|
76%
|
75%
|
76%
|
75%
|
75%
|
76%
|
75%
|
76%
|
76%
|
76%
|
| UV | - | 1 | 1 | 4 | 4 | 4 | 5 | 3 | 3 | 2 | 1 | - | - | - | - | - | - | - |
Thursday (22 October 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 |
40%
|
40%
|
60%
|
60%
|
60%
|
60%
|
60%
|
70%
|
70%
|
60%
|
40%
|
40%
|
40%
|
30%
|
30%
|
30%
|
20%
|
30%
|
40%
|
30%
|
40%
|
50%
|
40%
|
40%
|
| Temperature (°C) |
23°
|
23°
|
24°
|
23°
|
24°
|
24°
|
24°
|
24°
|
25°
|
25°
|
25°
|
25°
|
26°
|
26°
|
26°
|
25°
|
25°
|
24°
|
24°
|
24°
|
24°
|
23°
|
23°
|
23°
|
| Feels like temperature (°C) |
23°
|
22°
|
23°
|
22°
|
22°
|
21°
|
21°
|
22°
|
22°
|
23°
|
22°
|
23°
|
23°
|
24°
|
24°
|
24°
|
24°
|
23°
|
23°
|
22°
|
22°
|
22°
|
23°
|
23°
|
| Wind direction and speed (mph) |
NNE
12
|
NNE
12
|
NNE
12
|
NNE
14
|
NNE
16
|
NE
18
|
NE
18
|
NE
19
|
NE
19
|
NNE
19
|
NNE
19
|
NNE
19
|
NNE
19
|
NNE
18
|
NNE
17
|
NNE
17
|
NNE
16
|
NNE
15
|
NNE
14
|
NE
13
|
NE
13
|
NE
13
|
NE
11
|
NE
11
|
| Wind gust (mph) |
18
|
18
|
19
|
22
|
25
|
26
|
27
|
27
|
27
|
27
|
27
|
27
|
27
|
25
|
24
|
23
|
23
|
21
|
20
|
20
|
19
|
17
|
17
|
16
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
76%
|
76%
|
76%
|
77%
|
77%
|
78%
|
77%
|
76%
|
76%
|
75%
|
75%
|
75%
|
75%
|
75%
|
76%
|
75%
|
75%
|
76%
|
76%
|
76%
|
76%
|
76%
|
76%
|
77%
|
| UV | - | - | - | - | - | - | - | 1 | 3 | 6 | 7 | 5 | 9 | 5 | 3 | 2 | 1 | - | - | - | - | - | - | - |
Friday (23 October 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 |
50%
|
40%
|
30%
|
40%
|
50%
|
60%
|
50%
|
60%
|
80%
|
60%
|
60%
|
60%
|
70%
|
60%
|
50%
|
50%
|
50%
|
60%
|
60%
|
60%
|
70%
|
80%
|
70%
|
60%
|
| Temperature (°C) |
23°
|
23°
|
22°
|
22°
|
22°
|
22°
|
22°
|
23°
|
23°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
| Feels like temperature (°C) |
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
23°
|
23°
|
24°
|
24°
|
23°
|
23°
|
23°
|
23°
|
24°
|
23°
|
23°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
| Wind direction and speed (mph) |
NE
10
|
NE
9
|
NE
8
|
NE
8
|
NE
9
|
NE
9
|
NE
10
|
NE
11
|
NE
12
|
NE
12
|
NE
14
|
NE
14
|
NE
14
|
NE
13
|
NE
14
|
NE
14
|
NE
13
|
NE
12
|
NE
13
|
ENE
12
|
ENE
12
|
ENE
12
|
ENE
12
|
ENE
12
|
| Wind gust (mph) |
16
|
13
|
13
|
13
|
14
|
15
|
16
|
18
|
18
|
19
|
20
|
20
|
21
|
20
|
21
|
20
|
20
|
19
|
18
|
18
|
17
|
17
|
17
|
17
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
VG
|
| Humidity |
77%
|
77%
|
77%
|
77%
|
78%
|
79%
|
79%
|
79%
|
79%
|
81%
|
81%
|
79%
|
82%
|
82%
|
82%
|
81%
|
81%
|
83%
|
82%
|
82%
|
82%
|
84%
|
84%
|
84%
|
| UV | - | - | - | - | - | - | - | 1 | 3 | 2 | 3 | 5 | 4 | 5 | 3 | 2 | 1 | - | - | - | - | - | - | - |
Saturday (24 October 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 |
70%
|
60%
|
70%
|
60%
|
60%
|
80%
|
70%
|
80%
|
50%
|
50%
|
60%
|
70%
|
60%
|
70%
|
60%
|
60%
|
50%
|
50%
|
50%
|
60%
|
70%
|
70%
|
50%
|
40%
|
| Temperature (°C) |
23°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
23°
|
23°
|
23°
|
23°
|
23°
|
24°
|
24°
|
24°
|
24°
|
24°
|
24°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
| Feels like temperature (°C) |
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
22°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
23°
|
24°
|
23°
|
24°
|
24°
|
23°
|
23°
|
23°
|
23°
|
22°
|
22°
|
| Wind direction and speed (mph) |
ENE
11
|
ENE
10
|
ENE
10
|
ENE
10
|
ENE
10
|
ENE
10
|
ENE
10
|
ENE
10
|
ENE
10
|
E
10
|
E
12
|
E
12
|
E
12
|
E
13
|
E
12
|
E
12
|
E
12
|
E
12
|
E
11
|
E
11
|
E
11
|
E
12
|
ESE
12
|
ESE
14
|
| Wind gust (mph) |
16
|
15
|
15
|
15
|
15
|
15
|
15
|
15
|
16
|
17
|
17
|
17
|
19
|
18
|
17
|
17
|
17
|
17
|
16
|
16
|
17
|
17
|
19
|
19
|
| Visibility (description) |
G
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
84%
|
84%
|
84%
|
85%
|
84%
|
84%
|
84%
|
85%
|
84%
|
84%
|
84%
|
84%
|
85%
|
85%
|
85%
|
85%
|
84%
|
84%
|
84%
|
84%
|
84%
|
84%
|
84%
|
84%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 3 | 3 | 2 | 3 | 3 | 2 | 2 | 1 | - | - | - | - | - | - | - |
Sunday (25 October 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 |
60%
|
60%
|
50%
|
30%
|
50%
|
50%
|
40%
|
40%
|
50%
|
40%
|
50%
|
50%
|
50%
|
| Temperature (°C) |
23°
|
23°
|
22°
|
22°
|
22°
|
22°
|
22°
|
23°
|
24°
|
25°
|
25°
|
23°
|
23°
|
| Feels like temperature (°C) |
22°
|
22°
|
21°
|
21°
|
21°
|
21°
|
21°
|
22°
|
24°
|
25°
|
26°
|
23°
|
23°
|
| Wind direction and speed (mph) |
ESE
14
|
ESE
13
|
ESE
14
|
ESE
13
|
ESE
13
|
ESE
13
|
ESE
13
|
ESE
12
|
ESE
10
|
E
11
|
E
11
|
E
10
|
E
10
|
| Wind gust (mph) |
19
|
20
|
20
|
19
|
19
|
19
|
18
|
17
|
18
|
17
|
17
|
16
|
15
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
84%
|
84%
|
84%
|
83%
|
83%
|
84%
|
84%
|
83%
|
82%
|
82%
|
83%
|
82%
|
82%
|
| UV | - | - | - | - | - | - | - | 1 | 4 | 6 | 1 | - | - |
Monday (26 October 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
50%
|
60%
|
40%
|
40%
|
30%
|
50%
|
40%
|
40%
|
| Temperature (°C) |
23°
|
22°
|
23°
|
25°
|
26°
|
25°
|
23°
|
23°
|
| Feels like temperature (°C) |
23°
|
23°
|
23°
|
26°
|
27°
|
26°
|
23°
|
23°
|
| Wind direction and speed (mph) |
ESE
8
|
N
7
|
ENE
9
|
ENE
8
|
NE
9
|
NE
10
|
ENE
10
|
ENE
9
|
| Wind gust (mph) |
13
|
15
|
14
|
15
|
15
|
16
|
15
|
13
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
82%
|
83%
|
82%
|
81%
|
83%
|
83%
|
82%
|
81%
|
| UV | - | - | 1 | 7 | 9 | 1 | - | - |
Tuesday (27 October 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%
|
10%
|
10%
|
10%
|
10%
|
20%
|
10%
|
| Temperature (°C) |
23°
|
22°
|
23°
|
26°
|
27°
|
26°
|
24°
|
24°
|
| Feels like temperature (°C) |
23°
|
23°
|
24°
|
28°
|
28°
|
26°
|
23°
|
23°
|
| Wind direction and speed (mph) |
ENE
8
|
ENE
7
|
ENE
8
|
ENE
9
|
NE
11
|
NE
12
|
NE
13
|
NE
11
|
| Wind gust (mph) |
13
|
13
|
15
|
16
|
18
|
18
|
19
|
16
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
82%
|
82%
|
79%
|
81%
|
81%
|
79%
|
77%
|
77%
|
| UV | - | - | 1 | 6 | 8 | 1 | - | - |
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Forecast
Forecast for 06:00 (UTC+7), Wed
Updated 19:26 (UTC+1) on Tue 21 Oct 2025
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