Climate · Chiang Mai

Chiang Mai in May

Hot and wet, as the days lengthen.

Typical weather, averaged over 30 years

May in Chiang Mai is hot: highs near 95°F, lows near 76°F. Rain falls on about four days a week, more often as the month goes on, and the days lengthen by 20 minutes from the first week to the last.May in Chiang Mai is hot: highs near 35°C, lows near 24°C. Rain falls on about four days a week, more often as the month goes on, and the days lengthen by 20 minutes from the first week to the last.

High
95°F35°Caverage
Low
76°F24°Caverage
Wet days
4a week · 59% of days
Daylight
13h 01mon average

Is May a good time to visit Chiang Mai?


May sits outside Chiang Mai's best months, which run from December to January. Expect hot days and rain on about four days a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How May sits in the year

week by week

Temperature

Highs near 95°F in May, against 84°F to 100°F through the year.Highs near 35°C in May, against 29°C to 38°C through the year.

Chance of a wet day

59% of days in May, against 5% to 89% through the year.

Cloud cover

76% cover in May, against 35% to 86% through the year.

Daylight

13h 01m in May, against 11h 01m to 13h 14m through the year.

Week by week, lightly smoothed, with May shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side


  1. April100°38°low 75°low 24°1 wet day a weekRain on about one day a week.
  2. May95°35°low 76°low 24°4 wet days a weekRain on about four days a week.
  3. June91°33°low 75°low 24°6 wet days a weekRain on about six days a week.

Where Chiang Mai sits, in May

Asia/Bangkok

this place
typical high in May 40°F4°C95°F35°C
Sunrise, mid-May
5:50 AMsets 6:50 PM
Above the sea
310 mlow-lying
Latitude
18.8°Nnorthern hemisphere
Nearest of ours
Chiang Saen201 km north-east

The land around Chiang Mai, shaded by its typical high in May, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Thailand in May

high · low · wet days

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Chiang Mai. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (310 m) against the climate model's (394 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (310 m) against the climate model's (394 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.