Chiang Mai is best in the cool, dry season from November to February. March and April are very hot, and the monsoon season brings frequent rain from May to October.

Our analysis considers temperature ranges, rainfall patterns, crowd levels, accommodation costs, and seasonal events to provide you with a comprehensive view of when to visit Chiang Mai. Be aware that this destination has a distinct rainy season that can affect travel plans.

Month-by-Month Breakdown

Month Weather Rain Crowds Cost Verdict
January 29°C / 15°C 5mm
Peak
Good
February 32°C / 17°C 10mm
Peak
Good
March 34°C / 20°C 20mm
Good
April 36°C / 23°C 60mm
Good
May 34°C / 24°C 160mm 🌧️
Mixed
June 32°C / 24°C 110mm 🌧️
Mixed
July 31°C / 24°C 140mm 🌧️
Mixed
August 31°C / 24°C 180mm 🌧️
Mixed
September 31°C / 23°C 210mm 🌧️
Mixed
October 31°C / 21°C 120mm 🌧️
Mixed
November 29°C / 18°C 50mm
Peak
Good
Yi Peng / Lantern Festival
December 28°C / 15°C 10mm
Peak
Good

Frequently Asked Questions

When is peak season in Chiang Mai?
Peak season in Chiang Mai typically runs during November, December, January, February. This is when you'll find the best weather and most tourist activity, but also the highest prices and largest crowds.
Is Chiang Mai rainy during certain months?
Yes, Chiang Mai has a rainy season. The wet months can see significant rainfall, which may affect outdoor activities. Check the month-by-month table below for specific rainfall data.
Is Chiang Mai expensive to visit?
Prices in Chiang Mai vary by season. Peak season months typically have the highest accommodation and activity costs. Visiting during shoulder or low season can save you money.
Can you visit Chiang Mai in low season?
Yes, you can visit Chiang Mai in low season. While weather conditions may be less ideal, you'll benefit from lower prices and fewer tourists. Some attractions may have limited hours.
What are the hottest months in Chiang Mai?
The hottest months in Chiang Mai are February, March, April, May, June, July, August, September, October. During these months, temperatures can exceed 30°C (86°F). Stay hydrated and plan indoor activities during peak heat.
What is the wettest month in Chiang Mai?
May, August, September tend to be the wettest months. Pack a rain jacket and consider indoor attractions during this time.

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