Bangkok weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Poor
Best time to visit: November – February
What is the weather like in Bangkok in May?
In May, Bangkok is very hot: daytime highs average 33 °C, and even at night it stays warm at around 26 °C. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 20 days, totalling 140 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is not an ideal month for a holiday in Bangkok.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 12 h 45 min05:51 – 18:37
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or more
- Wind
- 15 km/haverage daily peak
- Cloud cover
- 80 %on average
- Hot days
- 29 days30 °C or more
- Time zone
- UTC+7Asia/Bangkok
How the score comes together
- Temperatureweight 50 %22 %
- Sunshineweight 20 %55 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in May
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Bangkok in May: quick answers
Is Bangkok hot in May?
Yes. In May, Bangkok is very hot: daytime highs average 33 °C and nights stay around 26 °C. On about 29 days the thermometer climbs to 30 °C or more.
Does it rain much in Bangkok in May?
It rains often – on about 20 days, adding up to 140 mm.
Bangkok month by month
The whole year in BangkokAll destinations: ThailandWhere to go in May
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)