Hot
Average highs reach 33°C, so days can feel very hot.
May verdict
Mixed for holiday weather
Average highs reach 33°C, so days can feel very hot. Sunshine averages 7.1h per day, enough for a balanced month. Rainfall averages 203mm, so showers are a real planning factor.
Monthly averages
Temp
33°C
Rain
203mm
Sun
7.1h
Weather score
52
Mixed
Hot
Average highs reach 33°C, so days can feel very hot.
Wet
Rainfall averages 203mm, so showers are a real planning factor.
Some sun
Sunshine averages 7.1h per day, enough for a balanced month.
Map
Compare Chiang Rai, Thailand with nearby places by weather score, rain, sun, temperature, and swim conditions.
May33°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMarch to May
This stretch sets the upper range for average daytime heat.
May203mm average rain
May sits near Chiang Rai's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May7.1 hours average sun
May sits close to Chiang Rai's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJanuary to April
This stretch has the strongest sunshine in the monthly averages.
May52 weather score
May scores below Chiang Rai's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to March and November
These months have the strongest weather score in the monthly averages.