Bangkok Temperature by Month

Bangkok, Bangkok Province, Thailand has a consistently very warm climate year-round, with daytime highs averaging 34°C (93°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.

In Bangkok temperatures are generally consistent throughout the year. Maximum daytime temperatures range from a very warm 33°C (91°F) in December to a very hot 37°C (99°F) in April. Nighttime lows range from 28°C (82°F) in April to 23°C (73°F) in December.

The chart below illustrates the average maximum day and minimum night temperatures in Bangkok by month:

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. April, the warmest month, sees 257 hours of sunshine.

The chart below shows the average temperature throughout the year:

Bangkok's average annual maximum temperature is 34°C (93°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Queenstown, New Zealand averages 10°C (50°F) annually, remember seasons are flipped, so its coldest months fall in June and July.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Bangkok, December is the coolest month, with average highs of 33°C (91°F) and humidity around 68%, considered high. In April, the warmest month, temperatures average 37°C (99°F) with 72% humidity, conditions that feel high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

For more on Bangkok's weather, including monthly rainfall, sunshine hours, and humidity, visit our Bangkok climate page.