Chiang Mai 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 – January
What is the weather like in Chiang Mai in May?
In May, Chiang Mai is very hot: daytime highs average 33 °C, and even at night it stays warm at around 25 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 14 rainy days and 104 mm in total. On about 24 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 Chiang Mai.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 13 h 0 min05:50 – 18:50
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or more
- Wind
- 9 km/haverage daily peak
- Cloud cover
- 70 %on average
- Hot days
- 24 days30 °C or more
- Time zone
- UTC+7Asia/Bangkok
How the score comes together
- Temperatureweight 50 %24 %
- Sunshineweight 20 %67 %
- Few rainy daysweight 30 %31 %
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
Chiang Mai in May: quick answers
Is Chiang Mai hot in May?
Yes. In May, Chiang Mai is very hot: daytime highs average 33 °C and nights stay around 25 °C. On about 24 days the thermometer climbs to 30 °C or more.
Does it rain much in Chiang Mai in May?
Rain is frequent, with about 14 rainy days and 104 mm in total.
Chiang Mai month by month
The whole year in Chiang MaiAll 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)