mksutton wrote:
Northern Highlands, Dalat, Pleiku, etc. If you can get an aircraft, the Delta with its rice paddies full of water can be beautiful from the air, or on the ground in good morning/evening light.
You might find this site useful: https://www.selectiveasia.com/vietnam-holidays/weather. I saw it snow in Dalat during my first tour in '64-'65. Safe travels! :-)