We are thinking of going to Thailand next summer with our two boys, and are restricted to school holidays. We 're thinking of Bangkok, train trip to Chang Mai And then relaxation on Ko Samui or similar. have looked to see what the weather will do and think it looks like the start of the rainy season. Has anyone been there at that time of the year, don't want to drag us all out there and spend most of the day trying to take cover. Also which airline did you use ( from the UK) .