Bangkok, Thailand Climate & Monthly Averages
The climate of Bangkok
Weather in Bangkok is shaped by its tropical wet-and-dry climate - expect year-round warmth split between a rainy season and a pronounced dry season. April afternoons typically reach 94°F (34°C), while January highs hover near 88°F (31°C). Annual precipitation averages 58.7 inches (1492 mm) over about 185 rainy days.
Climate quick facts
- Hottest month: April - highs near 94°F (34°C)
- Coldest month: January - highs near 88°F (31°C)
- Record high: 103°F (39°C) · Record low: 57°F (14°C) (2015–2024)
- Wettest month: September (26 rainy days) · Sunniest: April (10.9 h sun/day)
- Climate type: tropical wet-and-dry - year-round warmth split between a rainy season and a pronounced dry season
Temperatures through the year
The warmest stretch of the year centers on April. Highs average 94°F (34°C) and overnight lows stay near 80°F (27°C). The coolest month is January, with typical highs of 88°F (31°C) and lows around 72°F (22°C). Based on 2015–2024 weather data, temperatures have reached as high as 103°F (39°C) and dropped as low as 57°F (14°C).
Rain, sun and snow
September is usually the wettest month. It brings about 11.5 inches (293 mm) of rain over 26 days, while December is the driest. April brings the most sunshine, averaging 10.9 hours of sun a day.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 88° | 72° | 4 | 0.9 in | 10.3 h/day | 67% |
| February | 90° | 74° | 5 | 1.2 in | 10.6 h/day | 68% |
| March | 92° | 79° | 8 | 1.7 in | 10.8 h/day | 73% |
| April | 94° | 80° | 11 | 3.3 in | 10.9 h/day | 72% |
| May | 93° | 80° | 20 | 6.2 in | 10.1 h/day | 76% |
| June | 91° | 79° | 23 | 5.7 in | 9.4 h/day | 77% |
| July | 89° | 78° | 25 | 7.7 in | 8.0 h/day | 79% |
| August | 89° | 78° | 26 | 7.4 in | 7.9 h/day | 80% |
| September | 88° | 77° | 26 | 11.5 in | 8.0 h/day | 83% |
| October | 87° | 76° | 22 | 9.5 in | 8.8 h/day | 83% |
| November | 88° | 75° | 11 | 2.8 in | 9.8 h/day | 74% |
| December | 88° | 72° | 4 | 0.8 in | 10.1 h/day | 65% |
Bangkok month by month
Bangkok weather in January
January brings highs around 88°F (31°C), lows near 72°F (22°C), about 4 wet days - typically the coldest month of the year in Bangkok.
Bangkok weather in February
February brings highs around 90°F (32°C), lows near 74°F (24°C), about 5 wet days.
Bangkok weather in March
March brings highs around 92°F (33°C), lows near 79°F (26°C), about 8 wet days.
Bangkok weather in April
April brings highs around 94°F (34°C), lows near 80°F (27°C), about 11 wet days - typically the hottest month and the sunniest month of the year in Bangkok.
Bangkok weather in May
May brings highs around 93°F (34°C), lows near 80°F (27°C), about 20 wet days.
Bangkok weather in June
June brings highs around 91°F (33°C), lows near 79°F (26°C), about 23 wet days.
Bangkok weather in July
July brings highs around 89°F (32°C), lows near 78°F (26°C), about 25 wet days.
Bangkok weather in August
August brings highs around 89°F (32°C), lows near 78°F (26°C), about 26 wet days.
Bangkok weather in September
September brings highs around 88°F (31°C), lows near 77°F (25°C), about 26 wet days - typically the wettest month of the year in Bangkok.
Bangkok weather in October
October brings highs around 87°F (31°C), lows near 76°F (24°C), about 22 wet days.
Bangkok weather in November
November brings highs around 88°F (31°C), lows near 75°F (24°C), about 11 wet days.
Bangkok weather in December
December brings highs around 88°F (31°C), lows near 72°F (22°C), about 4 wet days - typically the driest month of the year in Bangkok.
Seasons in Bangkok
March through May
March through May in Bangkok turns very hot, with daytime highs averaging 93°F (34°C) and nights around 80°F (27°C); expect showers on roughly 39 days across the season. With the humidity factored in, afternoons often feel hotter than the thermometer reads - run the numbers through the humidity and dew point converter to see why.
June through August
June through August in Bangkok runs hot, with daytime highs averaging 89°F (32°C) and nights around 78°F (26°C); expect showers on roughly 74 days across the season.
September through November
September through November in Bangkok brings hot afternoons, with daytime highs averaging 88°F (31°C) and nights around 76°F (24°C); expect showers on roughly 59 days across the season.
December through February
December through February in Bangkok brings hot afternoons, with daytime highs averaging 89°F (31°C) and nights around 73°F (23°C); rain falls on about 14 days over the three months.
Climate questions, answered
What is the average temperature in Bangkok?
Is Bangkok hot in summer?
Is Bangkok cold in winter?
How many rainy days does Bangkok get in a year?
Best time to visit Bangkok
The best time to visit Bangkok is generally November to February, when these months combine the driest skies with the most comfortable heat. Daytime temperatures in that window typically sit near 89°F (31°C).
Pack for Bangkok with lightweight, breathable clothing and strong sun protection for the hot months; a compact umbrella or rain shell - showers are a regular feature; moisture-wicking fabrics to cope with the humidity. Evenings can feel noticeably cooler than afternoons - April nights average 80°F (27°C).
Bangkok temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.