Thailand in August
August shares the same seasonal pattern as July — the Andaman side in rainy season, the Gulf islands still reasonable.
Weather by Region
Exactly the same pattern as July: Phuket/Krabi rainy, Koh Samui/Koh Phangan/Koh Tao still reasonable. The heat index can feel significantly higher than the measured temperature.
Crowds and Prices
Still European summer-break demand — advance booking recommended, especially in popular destinations like Koh Samui.
Recommended Destinations for August
Who Should Visit
Same as July — families with a school-calendar constraint should prefer the Gulf islands over the Andaman side.