Koh Samui (Thailand) weather

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Forecast days

Today

Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 20° Celsius;

Sunrise: 06:42

Sunset: 18:22

Sunny.

VH UV

No pollution data.

No pollen data.

Today

Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 20° Celsius;
Sun 25 Jan

Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 20° Celsius;

Sunrise: 06:42

Sunset: 18:23

Sunny changing to partly cloudy by nighttime.

VH UV

No pollution data.

No pollen data.

Sun 25 Jan

Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 20° Celsius;
Mon 26 Jan

Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 19° Celsius;

Sunrise: 06:42

Sunset: 18:23

Sunny changing to partly cloudy by nighttime.

VH UV

No pollution data.

No pollen data.

Mon 26 Jan

Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 19° Celsius;
Tue 27 Jan

Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 18° Celsius;

Sunrise: 06:42

Sunset: 18:23

Sunny changing to partly cloudy by early evening.

VH UV

No pollution data.

No pollen data.

Tue 27 Jan

Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 18° Celsius;
Wed 28 Jan

Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 19° Celsius;

Sunrise: 06:42

Sunset: 18:24

Partly cloudy changing to sunny by late morning.

VH UV

No pollution data.

No pollen data.

Wed 28 Jan

Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 19° Celsius;
Thu 29 Jan

Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 20° Celsius;

Sunrise: 06:42

Sunset: 18:24

Sunny intervals changing to partly cloudy by nighttime.

VH UV

No pollution data.

No pollen data.

Thu 29 Jan

Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 20° Celsius;
Fri 30 Jan

Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 20° Celsius;

Sunrise: 06:42

Sunset: 18:24

Sunny changing to partly cloudy by early evening.

VH UV

No pollution data.

No pollen data.

Fri 30 Jan

Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 20° Celsius;

Sunny.

Sunrise: 06:42

Sunset: 18:22

VH UV

No pollution data.

No pollen data.

7 day forecast for Koh Samui

Today (23 January 2026)

Time	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	<5%	<5%	<5%	<5%	<5%	<5%	<5%	10%	10%	10%	<5%	10%	10%	10%	10%	20%	20%	40%	30%	30%
Temperature (°C)	20°	20°	20°	21°	22°	24°	25°	25°	26°	25°	25°	25°	25°	24°	24°	23°	22°	22°	22°	21°
Feels like temperature (°C)	19°	18°	18°	19°	21°	23°	24°	24°	25°	25°	25°	24°	24°	23°	22°	21°	20°	20°	20°	20°
Wind direction and speed (mph)	ENE 10	ENE 11	ENE 12	E 12	E 12	E 12	E 12	E 13	E 13	E 13	E 13	E 13	E 13	E 13	E 13	E 14	E 14	E 13	E 13	E 12
Wind gust (mph)	15	15	16	16	16	16	17	18	17	17	17	18	17	17	18	18	18	18	17	16
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	67%	66%	67%	68%	69%	68%	68%	69%	69%	71%	70%	69%	69%	69%	68%	69%	70%	71%	71%	71%
UV	-	-	-	1	2	4	7	9	9	9	7	4	2	1	-	-	-	-	-	-

Sunday (24 January 2026)

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	30%	20%	10%	10%	10%	10%	10%	10%	10%	10%	10%	10%	10%	10%	10%	20%	20%	30%	40%	40%	40%	40%	20%	30%
Temperature (°C)	21°	21°	21°	20°	20°	20°	20°	20°	22°	23°	25°	26°	26°	26°	26°	25°	25°	24°	23°	23°	22°	22°	22°	21°
Feels like temperature (°C)	20°	19°	19°	19°	19°	18°	18°	18°	20°	22°	23°	25°	26°	26°	25°	25°	24°	23°	22°	21°	21°	20°	20°	20°
Wind direction and speed (mph)	E 11	E 10	ESE 9	ESE 9	ESE 10	ESE 10	ESE 11	ESE 13	ESE 14	ESE 14	ESE 14	ESE 14	ESE 13	ESE 13	ESE 12	ESE 12	E 12	E 12	E 12	E 13	ESE 13	ESE 13	ESE 13	ESE 13
Wind gust (mph)	15	14	13	13	14	16	17	18	19	19	19	18	17	17	17	17	16	17	17	17	17	17	17	17
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	71%	69%	69%	68%	69%	71%	71%	71%	71%	73%	72%	71%	72%	73%	73%	74%	74%	74%	74%	75%	75%	75%	75%	75%
UV	-	-	-	-	-	-	-	1	2	4	7	9	9	9	7	4	2	1	-	-	-	-	-	-

Monday (25 January 2026)

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%	20%	20%	20%	20%	20%	30%	30%	40%	50%	40%	40%	50%	40%	40%	40%	40%	40%	40%	40%	30%	30%
Temperature (°C)	21°	21°	21°	21°	21°	21°	21°	21°	22°	24°	24°	25°	25°	25°	25°	25°	24°	24°	23°	22°	22°	22°	21°	21°
Feels like temperature (°C)	20°	19°	19°	19°	19°	19°	18°	19°	20°	22°	23°	24°	25°	25°	25°	24°	24°	23°	22°	21°	20°	20°	20°	20°
Wind direction and speed (mph)	ESE 13	ESE 12	ESE 12	ESE 12	SE 12	SE 13	SE 13	ESE 13	ESE 14	ESE 14	ESE 14	ESE 14	E 14	E 13	E 13	E 13	E 12	E 13	E 13	E 12	E 12	E 12	ESE 11	ESE 11
Wind gust (mph)	17	17	16	17	17	18	18	18	19	19	18	18	18	17	17	17	17	17	17	17	16	16	15	14
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%	75%	74%	75%	75%	74%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%
UV	-	-	-	-	-	-	-	1	2	4	7	9	9	9	7	4	2	1	-	-	-	-	-	-

Tuesday (26 January 2026)

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%	10%	10%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	10%	10%	10%	10%	<5%	<5%
Temperature (°C)	21°	21°	20°	20°	20°	19°	19°	20°	22°	23°	25°	26°	26°	27°	27°	26°	26°	25°	24°	23°	22°	22°	21°	21°
Feels like temperature (°C)	20°	20°	19°	19°	19°	18°	18°	18°	21°	23°	25°	26°	27°	27°	27°	26°	25°	24°	23°	22°	21°	21°	20°	20°
Wind direction and speed (mph)	ESE 10	ESE 10	SE 8	SE 8	SE 8	SE 9	ESE 9	ESE 10	ESE 10	ESE 10	ESE 10	ESE 11	ESE 11	ESE 12	ESE 12	ESE 12	ESE 12	ESE 12	ESE 12	ESE 12	ESE 12	ESE 11	ESE 10	ESE 10
Wind gust (mph)	13	12	12	12	12	13	13	14	14	15	15	16	16	17	17	17	16	16	16	16	16	15	14	14
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%	75%	75%	75%	75%	75%	75%	74%	74%	74%	74%	74%	74%	74%	74%	74%	75%	75%	75%	75%	75%	74%	74%	74%
UV	-	-	-	-	-	-	-	1	2	4	7	9	10	9	7	5	2	1	-	-	-	-	-	-

Wednesday (27 January 2026)

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%	10%	<5%	<5%	<5%	<5%	<5%	<5%	10%	10%	10%	20%	10%
Temperature (°C)	21°	20°	20°	19°	19°	19°	19°	19°	25°	27°	25°	23°	22°
Feels like temperature (°C)	20°	20°	19°	19°	18°	18°	18°	18°	25°	27°	25°	22°	21°
Wind direction and speed (mph)	SE 9	SE 9	SE 8	SE 8	SE 8	SE 8	ESE 8	ESE 8	ESE 9	E 10	E 11	E 11	ESE 10
Wind gust (mph)	13	12	12	12	11	12	12	13	14	15	16	15	15
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	74%	74%	74%	74%	75%	74%	74%	74%	73%	75%	75%	75%	75%
UV	-	-	-	-	-	-	-	1	6	9	2	-	-

Thursday (28 January 2026)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	10%	10%	<5%	20%	20%	20%
Temperature (°C)	21°	20°	19°	25°	26°	25°	23°	22°
Feels like temperature (°C)	19°	18°	18°	24°	26°	25°	21°	21°
Wind direction and speed (mph)	SE 10	SE 10	SE 11	ESE 12	ESE 12	ESE 13	ESE 13	ESE 12
Wind gust (mph)	15	16	16	17	17	18	17	17
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	75%	75%	75%	75%	75%	75%	75%	75%
UV	-	-	1	7	9	2	-	-

Friday (29 January 2026)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	10%	10%	10%	10%	<5%	<5%	<5%	<5%
Temperature (°C)	21°	20°	20°	24°	26°	25°	23°	22°
Feels like temperature (°C)	20°	19°	19°	24°	27°	25°	22°	22°
Wind direction and speed (mph)	SE 11	SE 11	SE 11	ESE 10	ESE 11	ESE 10	ESE 11	ESE 10
Wind gust (mph)	16	16	16	16	15	16	15	15
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	75%	74%	75%	74%	74%	75%	75%	75%
UV	-	-	1	7	8	2	-	-

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Forecast

Forecast for 4am (UTC+7) Saturday

Updated 18:18 (UTC) on Fri 23 Jan 2026

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Koh Samui (Thailand) weather

Find a forecast

Forecast days

Today

Today

Sun 25 Jan

Sun 25 Jan

Mon 26 Jan

Mon 26 Jan

Tue 27 Jan

Tue 27 Jan

Wed 28 Jan

Wed 28 Jan

Thu 29 Jan

Thu 29 Jan

Fri 30 Jan

Fri 30 Jan

7 day forecast for Koh Samui

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