We are trying to organise our schedule for our trip through s.e asia. Planning to fly into Singapore end of sept and then go overland through malaysia and thailand. We are doing a couple of tours through Vietnam and Cambodia. We need to think about when to book these, so we need to know the best time of year to go through these countries in the way of weather and tourist seasons. We have all the time in the world - planning on flying out of Bangkok next Feb/March. any adive??
vietnam - cold in north, including Hanoi
xmas/new year both crowded - head into countryside
Vietnam's monsoon season is May - September in the south, i think thailand is the same too. When it rains in Vietnam during the monsoon season there is no way you can go out and about, but the rains don't normally start until late afternoon and last an hour or 2 generally. In northern vietnam the climate is different, cooler, and i think the rainy season is at a different time to the shouth, you'd have to confirm that though as i'm not certain i'm right on that.