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 23°C at night and 33°C during the day. In the Gulf of Thailand the water temperature is at around 28°C 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.
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 05/08/2018 to 11/08/201850%Average60%24%12%92%84%64%
From 12/08/2018 to 18/08/201849%Average60%20%12%92%84%64%
From 19/08/2018 to 25/08/201848%Average56%20%12%94%86%62%
From 26/08/2018 to 01/09/201847%Average56%16%14%94%86%62%
From 02/09/2018 to 08/09/201848%Average58%16%14%94%88%62%
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!