Bangkok, Thailand Climate & Monthly Averages
The climate of Bangkok
Bangkok has one of the steadier climates in our dataset. Average highs move only 4°C across the whole year - from 88°F (31°C) in January to 94°F (34°C) in April - so the practical difference between seasons here is rainfall and daylight, not warmth.
Climate quick facts
- Hottest month: April - highs near 94°F (34°C)
- Coldest month: January - highs near 88°F (31°C)
- Decade extremes (2015-2024): 103°F (39°C) high · 57°F (14°C) low
- Wettest month: September (26 rainy days) · Sunniest: April (10.9 h sun/day)
- Climate type: tropical wet-and-dry
- Annual swing: 4°C between the average warmest and coolest month · day to night: 7°C
- Months averaging 30°C or hotter: 12
- Average humidity: 75%
Temperatures through the year
At its warmest, in April, Bangkok runs to 94°F (34°C) in the afternoon and back to 80°F (27°C) by dawn. January sits at the other end of the year: 88°F (31°C) by day, 72°F (22°C) at night. Sunshine averages 9.6 hours a day over the year, peaking in April at 10.9 hours.
Rain, sun and snow
Between the average April and the average January lie 4°C, a narrower spread than all but 10% of the 3496 cities in our dataset. Days and nights are about 7°C apart on average - narrower than about 78% of the cities we track. Average highs hold at or above 30°C for 12 months of the year, January through December being the unbroken run. September is the wettest month at 11.5 inches (293 mm) over 26 days; December is the driest. The gridded 2015-2024 daily record for this location tops out at 103°F (39°C) and bottoms at 57°F (14°C) - decade extremes, not all-time station records.
How Bangkok compares
- Bangkok averages 83°F (28°C) across the year - warmer than any other city in our 3496-city dataset.
- Rain or snow reaches the ground on 185 days a year - more wet days than 88% of the 3496 cities we track.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 88° | 72° | 4 | 0.9 in | 10.3 h/day | 11.4 h | 13% | 67% |
| February | 90° | 74° | 5 | 1.2 in | 10.6 h/day | 11.7 h | 19% | 68% |
| March | 92° | 79° | 8 | 1.7 in | 10.8 h/day | 12.0 h | 25% | 73% |
| April | 94° | 80° | 11 | 3.3 in | 10.9 h/day | 12.4 h | 37% | 72% |
| May | 93° | 80° | 20 | 6.2 in | 10.1 h/day | 12.8 h | 64% | 76% |
| June | 91° | 79° | 23 | 5.7 in | 9.4 h/day | 12.9 h | 76% | 77% |
| July | 89° | 78° | 25 | 7.7 in | 8.0 h/day | 12.9 h | 80% | 79% |
| August | 89° | 78° | 26 | 7.4 in | 7.9 h/day | 12.6 h | 84% | 80% |
| September | 88° | 77° | 26 | 11.5 in | 8.0 h/day | 12.2 h | 88% | 83% |
| October | 87° | 76° | 22 | 9.5 in | 8.8 h/day | 11.8 h | 72% | 83% |
| November | 88° | 75° | 11 | 2.8 in | 9.8 h/day | 11.5 h | 36% | 74% |
| December | 88° | 72° | 4 | 0.8 in | 10.1 h/day | 11.3 h | 14% | 65% |
Bangkok month by month
Average high and low for each month, with the bar showing where it sits in Bangkok's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 4 days
- Sunshine
- 10.3 h
- Daylight
- 11.4 h
February
- Rain
- 5 days
- Sunshine
- 10.6 h
- Daylight
- 11.7 h
March
- Rain
- 8 days
- Sunshine
- 10.8 h
- Daylight
- 12.0 h
April
- Rain
- 11 days
- Sunshine
- 10.9 h
- Daylight
- 12.4 h
May
- Rain
- 20 days
- Sunshine
- 10.1 h
- Daylight
- 12.8 h
June
- Rain
- 23 days
- Sunshine
- 9.4 h
- Daylight
- 12.9 h
July
- Rain
- 25 days
- Sunshine
- 8.0 h
- Daylight
- 12.9 h
August
- Rain
- 26 days
- Sunshine
- 7.9 h
- Daylight
- 12.6 h
September
- Rain
- 26 days
- Sunshine
- 8.0 h
- Daylight
- 12.2 h
October
- Rain
- 22 days
- Sunshine
- 8.8 h
- Daylight
- 11.8 h
November
- Rain
- 11 days
- Sunshine
- 9.8 h
- Daylight
- 11.5 h
December
- Rain
- 4 days
- Sunshine
- 10.1 h
- Daylight
- 11.3 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Bangkok
March through May
March through May brings serious heat here - highs near 93°F (34°C), nights near 80°F (27°C), and rain falls on around 39 of the 90 days. Daylight is generous - around 10.6 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
June through August
June through August runs hot here - highs near 89°F (32°C), nights near 78°F (26°C), and rain falls on around 74 of the 90 days.
September through November
Through September through November, Bangkok runs hot: 88°F (31°C) by day, 76°F (24°C) after dark, and rain falls on around 59 of the 90 days.
December through February
December through February brings hot afternoons here - highs near 89°F (31°C), nights near 73°F (23°C), and rain comes on about 14 days over the three months. Daylight is generous - around 10.3 hours of sun a day.
Climate questions, answered
How humid does Bangkok get?
Does it rain a lot in Bangkok?
How hot does Bangkok get in summer?
How long does summer last in Bangkok?
What should I wear in Bangkok?
Does Bangkok have seasons?
Best time to visit Bangkok
November to February is the sweet spot for Bangkok - humidity and rainfall are at their lowest, which is what actually varies here. Expect 89°F (31°C) in the afternoon and around 6 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in November.
Pack for Bangkok with lightweight, breathable clothing and serious sun protection, proper waterproofs rather than an umbrella - wet days are the norm here and moisture-wicking fabrics for the humidity. Even in April, lows of 80°F (27°C) make an extra layer worth the space.
Bangkok temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.