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      Elev 0 ft, 9.510 °N 99.999 °E

      Ko Samui, TH

      Ko Samui Station78°
      Updated: 3:51 AM GMT+07:00 on October 17, 2026 (GMT +7)
      4 minutes ago
      81°
      75°
      78
      Feels Like 82
      Mostly Cloudy
      N
      2
      Lower temperature is expected today
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      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Sat 10/17
        High 81°f
         40% Precip. / 0.02 in
        Rain showers this morning with mostly cloudy conditions during the afternoon hours. High 81F. Winds ENE at 5 to 10 mph. Chance of rain 40%.
        Tonight
        Sat 10/17
        Low 73°f
         52% Precip. / 0.12 in
        Variably cloudy with scattered thunderstorms. Low 73F. Winds light and variable. Chance of rain 50%.
        Tomorrow
        Sun 10/18
        High 79°f73°f
         49% Precip. / 0.29 in
        An isolated thunderstorm possible in the morning, then occasional showers in the afternoon. High 79F. Winds NNE at 5 to 10 mph. Chance of rain 50%.
        Hourly Forecast
        Now
        78°
        4AM
        39%
        78°
        5AM
        37%
        78°
        6AM
        78°
        6:08AM
        Sunrise
        7AM
        78°
        8AM
        79°
        9AM
        80°
        10AM
        36%
        82°
        11AM
        81°
        12PM
        80°
        1PM
        80°
        2PM
        80°
        3PM
        80°
        4PM
        80°
        5PM
        79°
        6PM
        79°
        6:02PM
        Sunset
        7PM
        78°
        8PM
        78°
        9PM
        33%
        77°
        10PM
        36%
        77°
        11PM
        76°
        12AM
        76°
        1AM
        75°
        2AM
        33%
        75°
        3AM
        37%
        75°
        Precipitation
        39%
        Rain possible around 4:45 AM
        Pollen
        None
        Air Quality
        72
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.81 in
        2. Visibility 10 miles
        3. Clouds Mostly Cloudy
        4. Dew Point72°F
        5. Humidity 81%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         VTSM Station History
        Almanac for October 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 81°F 87°F -°F
        4. Low 75°F 76°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.14 in 0.37 in -
        7. Snow 0 in - in -
        Almanac for October 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 79°F 87°F -°F
        4. Low 73°F 76°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:08 AM 6:02 PM
        3. Civil Twilight 5:47 AM 6:23 PM
        4. Nautical Twilight 5:22 AM 6:48PM
        5. Astronomical Twilight 4:57 AM 7:12 PM
        1. Length of Visible Light 12h 36m
        2. Length of Day 11h 54m
        3. Tomorrow will be 29 seconds shorter
        1. Moon 11:31 AM 11:16 PM
        2. Waxing Crescent36% of the Moon is Illuminated
        Oct 18
        Waxing Half First Qtr
        Oct 26
        Full Moon
        Nov 2
        Waning Half Last Qtr
        Nov 9
        New Moon
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