The month in detail
What to expect in May
Spring marks the start of the good season in Chiang Rai. Temperatures rise (32°C) and tourists have not yet arrived en masse. With 47% of rainy days, always have indoor alternatives planned.
May ranks 9 out of 12 months in Chiang Rai. Compared to April: −2°C daytime, 21 pts more rainy days, −1.2h of sun per day.
This month's conditions
What it's like in May
UV index
9 · very high
protection essential
Feels like
very humid
22°
Daylight
12.9h of daylight
Air quality
fair
AQI 44
Compare
Is May the right month?
The best month in Chiang Rai is February (9.1/10), 4.2 pts higher than May.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Chiang Rai
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Chiang Rai
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.
Country · Thailand
🗣️LanguageThai
💶CurrencyThai Baht (฿)
🚗DrivingLeft-hand
🛡️Safety ⓘSafe · 2/5
💰Cost of living ⓘCheap · 2/5
🌡️ Climate
🌍Climate typeTropical
📈Climate trend ⓘStable
🔥Hottest monthApril · 34°C
❄️Coolest monthJanuary · 26°C
🌧️Rainiest month ⓘAugust · 66%
🏝️ Tropical stay
🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘSeason Nov-Apr
Explore
Other destinations in May
If May doesn't convince you for this destination, compare with others.
Location
Where is Chiang Rai ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
ThailandTropical climate with a 9.1 → 4.6 gap between best and worst month. 10 years of ERA5 data to choose by project.
19.91°N · 99.83°E
Questions
Frequently asked questions
What is the best time to visit Chiang Rai?
February is the best month with 29.0°C highs, 15.0°C lows, 8.6h of sunshine and 4.0% rainy days. The months of February & January offer comparable conditions.
How many hours of sunshine does Chiang Rai get in February?
Chiang Rai averages 8.6 sunshine hours per day in February. It is the sunniest month with a climate score of 8.9/10.
What is the rainiest month in Chiang Rai?
July is the most unfavourable month with July has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Chiang Rai in February?
In February, overnight lows reach 15.0°C, while afternoon highs average 29.0°C.
Is Chiang Rai good in winter?
In winter (December-February), Chiang Rai scores 8.6/10 on average — Decent period conditions for cultural visits.. The best month overall remains February with a score of 8.9/10.
When should you avoid Chiang Rai?
July is the most difficult month to visit Chiang Rai, with July has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Chiang Rai in May?
The average UV index reaches 9 in May in Chiang Rai (very high), with about 12.9h of daylight. Protection essential.