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Chiang Mai, Thailand · Tropical

Chiang Mai in April: go or not?

Mixed period. Chiang Mai in April: 4.7/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 18.79°N · 98.98°E
⚡ This month's verdict
Why not
Chiang Mai · April
4.7
24–36°
Temperature
16%
Rain
8h
Sun
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo : Rob King via Unsplash
The month in detail

What to expect in April

April is peak dry season in Chiang Mai. The air is warm and humidity more bearable than in the rainy season. Rain risk remains low (16% of days), leaving good room for outdoor activities.

April ranks 10 out of 12 months in Chiang Mai. Compared to March: +2°C daytime, 9 pts more rainy days.

This month's conditions

What it's like in April

UV index
9 · very high
protection essential
Feels like
muggy at times
18°
Daylight
12.4h of daylight
Air quality
poor
AQI 63
Compare

Is April the right month?

The best month in Chiang Mai is January (9.3/10), 4.6 pts higher than April.

See January →See all 12 months →
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Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Chiang Mai

GetYourGuide selection · free cancellation

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Affiliate link · GetYourGuide
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 trendData unavailable
🔥Hottest monthApril · 36°C
❄️Coolest monthJanuary · 28°C
🌧️Rainiest month ⓘAugust · 55%

🏝️ Tropical stay

🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘSeason Nov-Apr
Location

Where is Chiang Mai ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Thailand
Tropical climate with a 9.3 → 4.6 gap between best and worst month. 10 years of ERA5 data to choose by project.
18.79°N · 98.98°E
Questions

Frequently asked questions

What is the best time to visit Chiang Mai?
January is the best month with 28.0°C highs, 17.0°C lows, 8.3h of sunshine and 3.0% rainy days. The months of January & February offer comparable conditions.
How many hours of sunshine does Chiang Mai get in January?
Chiang Mai averages 8.3 sunshine hours per day in January. It is the sunniest month with a climate score of 9.0/10.
What is the rainiest month in Chiang Mai?
April is the most unfavourable month with April has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Chiang Mai in January?
In January, overnight lows reach 17.0°C, while afternoon highs average 28.0°C.
Is Chiang Mai good in winter?
In winter (December-February), Chiang Mai scores 8.9/10 on average — Decent period conditions for cultural visits.. The best month overall remains January with a score of 9.0/10.
When should you avoid Chiang Mai?
April is the most difficult month to visit Chiang Mai, with April 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 Mai in April?
The average UV index reaches 9 in April in Chiang Mai (very high), with about 12.4h of daylight. Protection essential.