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Chiang Mai, Thailand · Tropical

Chiang Mai in January: go or not?

Excellent time. Chiang Mai in January scores 9.3/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 18.79°N · 98.98°E
⚡ This month's verdict
Go for it
Chiang Mai · January
9.3
17–28°
Temperature
3%
Rain
8h
Sun
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo : Rob King via Unsplash
The month in detail

What to expect in January

January is peak dry season in Chiang Mai. The air is warm and humidity more bearable than in the rainy season. Rain is virtually absent (3% of days) — ideal for planning without a backup.

January is the best month of the year in Chiang Mai. Compared to December: +0.6h of sun per day.

This month's conditions

What it's like in January

UV index
7 · high
sunscreen and hat advised
Feels like
comfortable
16°
Daylight
11.0h of daylight
Air quality
good
AQI 39
Compare

Is January the right month?

January is actually the best month of the year in Chiang Mai. Good timing.

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 January?
The average UV index reaches 7 in January in Chiang Mai (high), with about 11.0h of daylight. Sunscreen and hat advised.