May · Thailand
Best time to visit Chiang Mai in May Weather, crowds & prices
Weather in Chiang Mai in May
Average temperature 26°C, 216 mm of rain, about 23 days with 6+ hours of sunshine and 74% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
4.5/10
Ranked #10 of 12 months
- Avg temp
- 26°C
- Rainfall
- 216 mm
- Humidity
- 74%
- Days with 6h+ sun
- 23
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
May in Chiang Mai scores 4.5/10 for sightseeing and cultural travel - ranked #10 of 12. Expect around 26°C, 216 mm of rain, and roughly 23 days with 6+ hours of sunshine this month.
Temple mountains, night markets, and cooler northern air shine January through March.
May in Chiang Mai — off-season conditions
May averages 26°C (79°F) and humidity near 74%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
216 mm makes this the wettest stretch of the year, though about 23 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.
It scores 4.5/10 here, 10th of 12 months, against 9.8/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Plan for low-season pricing, with crowds are light for this destination.
Flexible dates? February scores 5.3 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Chiang Mai in May?
- In May, Chiang Mai averages 26°C, 216 mm of rain, and about 23 days with 6+ hours of sunshine. Its climate-comfort score is 4.5/10.
- Is May a good time to visit Chiang Mai?
- May earns a 4.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Chiang Mai in May?
- Expect about 216 mm of rain in May. Average humidity is 74% and there are about 23 days with 6+ hours of sunshine.
Curated in Chiang Mai
Tickets & experiences
Things to do in Chiang Mai
Chiang Mai, Thailand. Live activities and tours from GetYourGuide, matched to this destination.