2026 Climate Averages

Weather: Chiang Mai — December

The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.

🌟 Climate Overview

December is an excellent time to visit Chiang Mai. Hot conditions with temperatures reaching 30°C—stay hydrated and seek shade. Rainfall is rare, so you can leave the umbrella at home. Temperatures vary significantly between day and night—layering is recommended. As peak season, expect higher prices and more tourists.

7.3
GoTripzi Score Great

Based on weather comfort, crowds, prices, and activity options

Avg High

30°C

Avg Low

17°C

Rainy days

1day

Daylight

11h

Feels like 33°C / 19°C — humidity makes it feel warmer

Rainfall

4mm

Sunshine

9.8h/day

Humidity

79%

Muggy
Sun Strength

6.2

High
Wind

6 km/h (gusts 17)

Is December a good time to visit Chiang Mai?

The weather is near-perfect with ideal temperatures and minimal rain.

Now

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Feels like --
Wind --
Humidity --
UV Index --
Local time

Air Quality

Travel Context

  • Crowds
    Very Busy
  • Travel Costs Peak Rates

Daylight

Sunrise

06:50

Sunset

17:50

11h daylight

Visiting Chiang Mai in December: Pros & Cons

Pros

  • Minimal rainfall — great for outdoor plans
  • Abundant sunshine for beach and outdoor fun
  • One of the best months to visit

Cons

  • Peak season — expect crowds and higher prices

Things to Do in December

Events & Festivals

🏆
Chiang Mai Marathon
December Sport

Recommended for This Weather

🚶 Walking tours & sightseeing
🚲 Cycling & bike tours
🥾 Hiking & nature trails
🍜 Food tours & culinary experiences
🎭 Cultural tours & local experiences

Chiang Mai Weather by Month

Month Avg High Avg Low Rain Sunshine Humidity UV Index Crowds Condition
Jan 31°C 16°C 1d (3mm) 10.2h
72% Muggy
7 High
Excellent
Feb 33°C 18°C 1d (5mm) 10.6h
63% Moderate
8 Very High
Excellent
Mar 36°C 22°C 2d (9mm) 10.9h
58% Moderate
9.1 Very High
Good
Apr 37°C 25°C 4d (31mm) 10.9h
60% Moderate
9 Very High
Good
May 36°C 26°C 11d (88mm) 10.4h
67% Muggy
8.1 Very High
Good
Jun 34°C 26°C 16d (106mm) 9.4h
73% Muggy
6.9 High
Wet
Jul 33°C 26°C 21d (175mm) 8.5h
77% Muggy
6.5 High
Wet
Aug 32°C 25°C 23d (216mm) 7.5h
82% Very Muggy
6 High
Wet
Sep 32°C 25°C 24d (257mm) 8.5h
84% Very Muggy
6.2 High
Wet
Oct 32°C 24°C 17d (155mm) 8.9h
83% Very Muggy
6.2 High
Wet
Nov 31°C 21°C 6d (37mm) 9.4h
82% Very Muggy
6.2 High
Excellent
Dec Current 30°C 17°C 1d (4mm) 9.8h
79% Muggy
6.2 High
Excellent

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5
3
3
Your Best MonthOctScore: 8

Where to Stay

See hotels, apartments & rentals around Chiang Mai – live prices from Booking.com, Expedia, Vrbo and more

Chiang Mai

Northern Thai temples with Doi Suthep temple and Old City temples, night markets, elephant sanctuaries, and mountain escapes.

View Full Destination Guide

What to Pack for December

Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool. Temperatures drop significantly at night, so pack layers you can add or remove throughout the day. Don't forget a wide-brimmed hat and high-SPF sunscreen — the sun is strong.

Tropical Very Busy

🎒Personalized Packing List

Tell us about your trip and we'll create a custom packing list based on the weather.

Your Packing List

📋Essentials
👕Clothing
👟Footwear
🎒Accessories
🧴Toiletries & Health

Planning a trip to Chiang Mai?

🔥 Peak season — book early for best rates

Frequently Asked Questions

Is December a good time to visit Chiang Mai?
December is typically excellent for visiting Chiang Mai, with average highs of 30°C and around 1 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.
Does it get cold at night in Chiang Mai in December?
Evenings in Chiang Mai during December are mild at 17°C. A light cardigan or long sleeves for evenings is usually enough. Outdoor dining remains comfortable, making it a great time to enjoy rooftop bars and terrace restaurants.
What should I pack for Chiang Mai in December?
With highs of 30°C and lows of 17°C in December, we recommend: Lightweight breathable clothes, Sunscreen SPF 30+, Sun hat, Sunglasses. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.
Does it rain a lot in Chiang Mai in December?
Chiang Mai typically sees around 1 rainy days in December. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.
How many hours of daylight are there in Chiang Mai in December?
In December, Chiang Mai gets approximately 11 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.
Is December peak season in Chiang Mai?
Yes, December is peak season in Chiang Mai. Expect higher prices for accommodation and more crowds at popular attractions, but also the best weather conditions. Book hotels and major attractions in advance to secure availability and better rates.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: Asia/Bangkok)

Last Updated: February 2026