Bangkok edges it in December. Bangkok averages 23–32°C with high crowds; Hanoi 14–21°C with low–moderate crowds.
By Daan · Last reviewed October 2026
Bangkok and Hanoi
The verdict for December
Dry, sunny and festive
+Dry, sunny and comfortable by Bangkok standards, with excellent conditions for exploring.
–Christmas and New Year push crowds and hotel rates higher.
Bangkok's best weather, with festive energy on top.
Cool, dry and easy to explore
+The joint-lowest rainfall and fewest rainy days of the year.
–Cloud, mist and cool evenings can surprise travelers expecting tropical heat.
December is excellent for dry, cool sightseeing if sunshine and warmth are not priorities.
Scores and crowd levels are my own judgement; temperatures are monthly averages. Higher scores are better: quieter, cheaper and more pleasant.
Another month