Rain comes in many forms in Indochina! Wet weather is never very far away in Indochina, but the degree to which it affects you depends on what you intend to do. In Hotels In Vietnam, for example, if you want to go diving at Nha Trang, October, November and most of December are useless because the rain turns the sea into a murky soup at that time. However, if you want to visit the Cham monuments, it’s only a matter of dodging the showers.