Whilst the weather on Koh Yao Yai is hot throughout the year, there are times when there will be more rainfall compared to other times.
The western coast of Thailand experiences its southwest monsoon between June and October each year. Whereas it’s true that there will be more rainfall at this time of year, flights and accommodation will be cheaper, and at this time of year, the beaches will be less crowded.
During the monsoon, it’s common to have bright sunshine and blue skies during the day, with the late afternoon heralding the start of the rain, which cools everything down for the evening.
Between November and May, Thailand’s weather is much more dependable, with January through to Songkran (Thai New Year on April 13th) being very hot and dry.
This time of the year will also see the calmest seas and better water visibility for anyone looking to enjoy some snorkeling or scuba diving in the area. Perfect water sports and beach weather!