Koh Samui
Angelika Bentin / age fotostock
Koh Samui (Thailand) From 06/08/2017 to 12/08/2017
All overall Average 60%24%12%92%84%64%
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Koh Samui: Weather forecast in August

The tropical climate of the island of Koh Samui stays relatively dry throughout the year and the short downpours occur mainly at night. The month of August has around 16 days of rain and brings 119mm of precipitation. The average temperatures, which are warm without being unbearable, fluctuate between 23C at night and 33C during the day. In the Gulf of Thailand the water temperature is at around 28C but the number of hours of sunshine in the month of August is just 5 hours per day. As such, the weather comfort index score for Koh Samui in the month of August only reaches an average 49/100.

The weather prediction service in Koh Samui is based on a calculation which takes into account historic data from the last 10 years, as well as predictions based on certain criteria such as air temperature, humidity, water temperature, wind speed and sunshine.

Prepare your things now for your stay by taking a look at the weather predictions for Koh Samui.

  • Temperature
  • Bad weather
  • Sunbathing
  • Swimming
  • Wind
  • Humidity

The weather is rated on a scale from 0 to 100, with the worst weather conditions ranging between 0 and 19 and the best ranging above 79.
The overall weather comfort index is:

  • Excellent (Rating between 80% and 100%)
  • Good (Rating between 60% and 79%)
  • Average (Rating between 40% and 59%)
  • Bad (Rating between 20% and 39%)
  • Very bad (Rating between 0% and 19%)

Practical advice for a stay in Koh Samui:

  • Thin, light cotton clothing
  • A ligth waterproof jacket for evening walks
  • Everything you need for the beach

Weather forecast Koh Samui in august

  • From 06/08/2017 to 12/08/2017 50% Average 60%24%12%92%84%64%
  • From 13/08/2017 to 19/08/2017 48% Average 58%20%12%92%84%64%
  • From 20/08/2017 to 26/08/2017 48% Average 56%20%14%94%86%62%
  • From 27/08/2017 to 02/09/2017 48% Average 58%16%14%94%86%62%
  • From 03/09/2017 to 09/09/2017 48% Average 58%16%14%94%86%62%
< July September >

Koh Samui: Seven-day weather forecast

  • Tuesday 22 August 2017 Koh Samui storm risk 25°C | 32°C
    • Rainfall: 2
    • Wind: Force 11 Direction SE
    • Sun: Indicator 43 06:11:00 18:34:00
    • Moon: 06:27:00 19:06:00
  • Wednesday 23 August 2017 Koh Samui storm risk 28°C | 33°C
    • Rainfall: 2
    • Wind: Force 10 Direction SE
    • Sun: Indicator 18 06:11:00 18:33:00
    • Moon: 07:21:00 19:53:00
  • Thursday 24 August 2017 Koh Samui stormy 26°C | 29°C
    • Rainfall: 0
    • Wind: Force 17 Direction SE
    • Sun: Indicator 45 06:11:00 18:33:00
    • Moon: 08:14:00 20:39:00
  • Friday 25 August 2017 Koh Samui stormy 25°C | 33°C
    • Rainfall: 0
    • Wind: Force 12 Direction SE
    • Sun: Indicator 46 06:11:00 18:32:00
    • Moon: 09:03:00 21:21:00
  • Saturday 26 August 2017 Koh Samui stormy 28°C | 33°C
    • Rainfall: 0
    • Wind: Force 15 Direction SE
    • Sun: Indicator 48 06:11:00 18:32:00
    • Moon: 09:52:00 22:04:00
  • Sunday 27 August 2017 Koh Samui cloudy 25°C | 32°C
    • Rainfall: 0
    • Wind: Force 8 Direction S
    • Sun: Indicator 43 06:11:00 18:31:00
    • Moon: 10:40:00 22:47:00

Thailand: Seven-day weather forecast

Take a look at the seven-day weather forecast for the principal cities in Thailand. For each destination, Easyvoyage's weather tool gives you temperature and rainfall indicators, along with wind force and direction and sunrise/sunset times. Prepare your holidays using our weather forecasts or organise your activities thanks to the weather comfort index for Thailand. Whether you're getting ready to go or already on holiday, it's never been simpler to keep an eye on the weather than with Easyvoyage!

Latest searches for cheap Koh Samui flights

  • London - Koh Samui

    Departure 31/08/2017 Etihad Airways Etihad Airways Flight 2 stop(s) 18h05 (Duration)
    Return 11/09/2017 Etihad Airways Etihad Airways Flight 2 stop(s) 18h45 (Duration)
    from £559.44 Flight search 2 day(s) ago

    Glasgow - Koh Samui

    Departure 22/08/2017 Emirates Emirates Flight 2 stop(s) 18h20 (Duration)
    Return 29/08/2017 Emirates Emirates Flight 2 stop(s) 34h50 (Duration)
    from £861.00 Flight search 7 day(s) ago

    Birmingham - Koh Samui

    Departure 28/08/2017 Emirates Emirates Flight 2 stop(s) 19h05 (Duration)
    Return 04/09/2017 Emirates Emirates Flight 2 stop(s) 30h30 (Duration)
    from £885.84 Flight search 1 day(s) ago

    Bristol - Koh Samui

    Departure 07/08/2017 KLM KLM Flight 2 stop(s) 18h25 (Duration)
    Return 15/08/2017 KLM KLM Flight 2 stop(s) 29h40 (Duration)
    from £1,031.63 Flight search 30 day(s) ago

    Manchester - Koh Samui

    Departure 22/08/2017 Air France Air France Flight 2 stop(s) 19h10 (Duration)
    Return 08/09/2017 Air France Air France Flight 2 stop(s) 18h20 (Duration)
    from £657.79 Flight search 14 day(s) ago

    Edinburgh - Koh Samui

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    Leeds - Koh Samui

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    Manchester - Koh Samui

    Departure 22/08/2017 Finnair Finnair Flight 2 stop(s) 17h40 (Duration)
    Return 08/09/2017 Finnair Finnair Flight 2 stop(s) 25h45 (Duration)
    from £670.59 Flight search 14 day(s) ago

    Cardiff - Koh Samui

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    Belfast - Koh Samui

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    Aberdeen - Koh Samui

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    Dublin - Koh Samui

    Departure 17/08/2017 Qatar Airways Qatar Airways Flight 2 stop(s) 31h05 (Duration)
    Return 24/08/2017 Qatar Airways Qatar Airways Flight 2 stop(s) 42h00 (Duration)
    from £693.10 Flight search 11 day(s) ago