Bangkok weather in May
In May, Bangkok has an average high of 33 °C92 °F and an average low of 25 °C78 °F, with about 164 mm6.4 in of precipitation. It is the 3rd warmest month of the year and ranks 6th for precipitation.
How May compares with other months
Compared with April, May is 1.2 °C2.2 °F cooler on average and wetter by 88 mm3.5 in. Compared with June, May is 1.1 °C2 °F warmer on average. Daylight lasts about 12.8 hours around the middle of the month. Average relative humidity is 76% and the average cloud amount 84%.
Is May a good time to visit Bangkok?
May is not among the most comfortable months by our comfort score: it is hot (average high 33 °C92 °F), it is fairly wet (164 mm6.4 in) and it is humid (76%). The most comfortable months in Bangkok are November and December.
What to wear in May
For Bangkok in May, pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
May in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Bangkok | 3392 | 2578 | 1646.4 |
| Samut Prakan | 3290 | 2780 | 1526.0 |
| Khlong Luang | 3392 | 2678 | 1646.4 |
| Nakhon Pathom | 3494 | 2678 | 1485.8 |
| Ban I Chang | 3493 | 2679 | 1375.4 |
| Chon Buri | 3391 | 2678 | 1706.7 |
| Si Racha | 3087 | 2984 | 1526.0 |
| Pattaya | 3087 | 2984 | 1526.0 |
| Kanchanaburi | 3493 | 2577 | 1495.9 |
Other months in Bangkok
- January33 °C91 °F / 20 °C68 °F
- February35 °C95 °F / 22 °C72 °F
- March36 °C97 °F / 24 °C76 °F
- April36 °C97 °F / 25 °C78 °F
- May33 °C92 °F / 25 °C78 °F
- June32 °C89 °F / 25 °C77 °F
- July31 °C88 °F / 24 °C75 °F
- August31 °C88 °F / 24 °C75 °F
- September30 °C87 °F / 24 °C75 °F
- October30 °C86 °F / 24 °C74 °F
- November30 °C86 °F / 21 °C71 °F
- December31 °C87 °F / 19 °C67 °F
Frequently asked questions
How warm is Bangkok in May?
In May the average high in Bangkok is 33 °C (92 °F) and the average low is 25 °C (78 °F).
Does it rain a lot in Bangkok in May?
On average about 164 mm (6.4 in) of precipitation falls in May; it ranks 6th of the 12 months.
Is May the warmest month in Bangkok?
No. The warmest month in Bangkok is March, with an average high of 36 °C (97 °F). The coldest month is December, with an average low of 19 °C (67 °F).
How long is the day in Bangkok in May?
In the middle of May the day in Bangkok lasts about 12.8 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Bangkok in May?
The average relative humidity in May is about 76%. Combined with warm days, it can feel muggy.
How cloudy is Bangkok in May?
On average about 84% of the sky is covered by cloud in May. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.