Koh Samui (Thailand) weather

Forecast days

Sunny intervals changing to partly cloudy by early evening.
Sunrise iconSunrise:
Sunset iconSunset:
VH UV
No pollution data.
No pollen data.

    7 day forecast for Koh Samui

    Today (2 July 2025)
    Time
    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 Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny intervals Sunny day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    10%
    <5%
    <5%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    10%
    Temperature
    26°
    27°
    28°
    28°
    29°
    30°
    29°
    29°
    29°
    27°
    26°
    25°
    25°
    24°
    24°
    Feels like temperature (°C)
    26°
    27°
    29°
    29°
    29°
    30°
    30°
    30°
    29°
    27°
    25°
    24°
    23°
    23°
    23°
    Wind direction and speed
    W
    12
    W
    12
    W
    12
    W
    12
    W
    14
    W
    14
    W
    14
    W
    14
    W
    14
    W
    15
    W
    15
    W
    15
    W
    16
    W
    15
    W
    15
    Wind gust (mph)
    17
    17
    17
    19
    20
    19
    19
    19
    20
    20
    22
    22
    22
    21
    21
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    76%
    75%
    75%
    75%
    75%
    75%
    75%
    75%
    74%
    73%
    73%
    72%
    73%
    75%
    75%
    UV 5 6 9 10 9 8 5 3 1 - - - - - -
    Friday (3 July 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 Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night Clear night Clear night Clear night Clear night
    Chance of precipitation
    10%
    10%
    20%
    20%
    20%
    10%
    20%
    20%
    10%
    10%
    10%
    10%
    <5%
    <5%
    20%
    20%
    20%
    10%
    10%
    20%
    20%
    10%
    10%
    10%
    Temperature (°C)
    24°
    24°
    23°
    23°
    23°
    23°
    23°
    24°
    25°
    26°
    27°
    28°
    29°
    29°
    29°
    29°
    29°
    28°
    27°
    26°
    25°
    24°
    24°
    24°
    Feels like temperature (°C)
    22°
    22°
    22°
    22°
    21°
    21°
    22°
    23°
    24°
    26°
    27°
    29°
    30°
    30°
    30°
    29°
    29°
    29°
    27°
    24°
    24°
    23°
    22°
    22°
    Wind direction and speed (mph)
    W
    15
    W
    15
    W
    14
    WSW
    14
    WSW
    15
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    13
    W
    13
    W
    14
    W
    13
    W
    13
    W
    14
    W
    15
    W
    15
    W
    15
    W
    15
    WSW
    16
    WSW
    16
    Wind gust (mph)
    21
    20
    20
    20
    20
    20
    20
    20
    20
    19
    19
    19
    18
    18
    19
    18
    19
    20
    21
    21
    21
    22
    22
    22
    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%
    76%
    76%
    76%
    76%
    78%
    78%
    79%
    79%
    78%
    75%
    75%
    75%
    75%
    74%
    73%
    73%
    73%
    72%
    73%
    73%
    74%
    75%
    UV - - - - - - - 1 2 4 8 11 10 10 8 5 3 1 - - - - - -
    Saturday (4 July 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 Clear night Clear night Clear night Clear night Clear night Partly cloudy night Sunny day Sunny day Sunny day Sunny day Sunny day Clear night Partly cloudy night
    Chance of precipitation
    10%
    10%
    <5%
    10%
    <5%
    10%
    10%
    10%
    40%
    20%
    40%
    20%
    20%
    Temperature (°C)
    24°
    23°
    23°
    23°
    23°
    23°
    23°
    24°
    27°
    28°
    28°
    26°
    24°
    Feels like temperature (°C)
    22°
    21°
    21°
    22°
    21°
    21°
    21°
    22°
    27°
    28°
    28°
    24°
    22°
    Wind direction and speed (mph)
    WSW
    15
    WSW
    16
    WSW
    16
    WSW
    16
    WSW
    16
    WSW
    16
    WSW
    16
    WSW
    16
    WSW
    15
    W
    16
    W
    15
    WSW
    16
    WSW
    17
    Wind gust (mph)
    22
    22
    22
    22
    23
    22
    22
    22
    23
    23
    23
    24
    25
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    75%
    75%
    77%
    81%
    82%
    83%
    82%
    83%
    79%
    75%
    74%
    74%
    77%
    UV - - - - - - - 1 8 9 3 - -
    Sunday (5 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Partly cloudy night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    30%
    20%
    10%
    20%
    30%
    20%
    20%
    10%
    Temperature (°C)
    23°
    23°
    24°
    27°
    29°
    28°
    26°
    24°
    Feels like temperature (°C)
    21°
    21°
    22°
    27°
    29°
    28°
    25°
    23°
    Wind direction and speed (mph)
    WSW
    17
    WSW
    18
    WSW
    17
    WSW
    16
    W
    14
    W
    15
    W
    15
    WSW
    14
    Wind gust (mph)
    26
    26
    24
    22
    21
    22
    21
    20
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    82%
    84%
    84%
    81%
    75%
    75%
    74%
    75%
    UV - - 1 6 6 2 - -
    Monday (6 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    10%
    <5%
    10%
    <5%
    20%
    40%
    30%
    10%
    Temperature (°C)
    23°
    23°
    24°
    28°
    29°
    29°
    26°
    24°
    Feels like temperature (°C)
    22°
    22°
    23°
    29°
    32°
    31°
    26°
    24°
    Wind direction and speed (mph)
    WSW
    14
    WSW
    13
    WSW
    13
    WSW
    12
    WSW
    8
    W
    7
    SW
    8
    WSW
    9
    Wind gust (mph)
    19
    19
    19
    17
    13
    14
    15
    15
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    76%
    77%
    77%
    75%
    72%
    74%
    75%
    75%
    UV - - 1 9 10 3 - -
    Tuesday (7 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Light shower night Clear night
    Chance of precipitation
    10%
    10%
    <5%
    <5%
    <5%
    30%
    50%
    30%
    Temperature (°C)
    23°
    23°
    24°
    28°
    30°
    29°
    26°
    24°
    Feels like temperature (°C)
    23°
    22°
    24°
    29°
    33°
    32°
    27°
    24°
    Wind direction and speed (mph)
    WSW
    10
    WSW
    11
    WSW
    10
    WSW
    9
    WSW
    7
    NW
    6
    WNW
    8
    W
    10
    Wind gust (mph)
    17
    16
    15
    13
    12
    12
    15
    17
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    75%
    76%
    77%
    76%
    74%
    74%
    73%
    75%
    UV - - 1 9 11 3 - -
    Wednesday (8 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    10%
    10%
    10%
    10%
    10%
    20%
    30%
    10%
    Temperature (°C)
    24°
    23°
    24°
    28°
    30°
    29°
    26°
    25°
    Feels like temperature (°C)
    23°
    22°
    23°
    29°
    32°
    30°
    26°
    23°
    Wind direction and speed (mph)
    WSW
    11
    WSW
    11
    WSW
    12
    WSW
    12
    W
    11
    WNW
    12
    W
    14
    W
    16
    Wind gust (mph)
    17
    17
    18
    18
    18
    19
    23
    23
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    76%
    77%
    78%
    76%
    75%
    74%
    74%
    74%
    UV - - 1 9 11 3 - -

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    Forecast for 09:00 (UTC+7), Thu
    Updated 01:16 (UTC+1) on Thu 3 Jul 2025
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