Average Temperature in Bangkok by Month

Bangkok has a tropical monsoon climate, classified as Am in the Köppen system. The warmest month is April with an average high of 35°C, while the coldest month is January with lows dropping to 21°C. The annual temperature range of 14°C indicates a relatively stable climate year-round.

The driest month is December with only 2 rain days and 9mm of precipitation. For travellers, December through to the following month typically offers the best balance of warm temperatures and dry conditions. Average humidity ranges from 82% to 82% throughout the year.