The best times to visit Chiang Mai for ideal weather are
November 19th to February 18th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Chiang Mai Travel Guide
Other Chiang Mai Travel Info
Weather in Chiang Mai
Average temperatures in Chiang Mai vary somewhat. Considering humidity, temperatures feel hot for most of the year with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 23rd percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Chiang Mai, the hottest months are April, May, and then June. See average monthly temperatures below. The warmest time of year is generally mid April where highs are regularly around 99.8°F (37.7°C) with temperatures rarely dropping below 76.1°F (24.5°C) at night.
Chiang Mai Temperatures (Fahrenheit)
Chiang Mai Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Chiang Mai Perceived Temperature (F)
Chiang Mai Perceived Temperature (C)
Average Chiang Mai Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Chiang Mai are February, December, and then January. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid January. For example, on the week of January 15th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid August with an average of 4 days of significant precipitation the week of August 6th.
When can you find snow in Chiang Mai? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Chiang Mai.
Snow on the Ground
The graph below shows the average snow on the ground in Chiang Mai (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Chiang Mai has some very humid months, and slightly dry months in the opposite season. The least humid month is March (38.8% relative humidity), and the most humid month is September (71.7%).
Wind in Chiang Mai is usually extremely calm. The windiest month is April, followed by June and May. April’s average wind speed of around 4.1 knots (4.8 MPH or 7.7 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early May where average top sustained speeds reach 13.9 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Chiang Mai.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||2.2||Barely noticeable||7||Gentle breeze|
|Feb||2.5||Barely noticeable||7.4||Gentle breeze|
|Mar||3.2||Barely noticeable||9.1||Gentle breeze|
|Apr||4.1||Light breeze||12.3||Significant breeze|
|May||4||Light breeze||12.8||Gentle breeze|
|Jun||4.1||Light breeze||11.5||Significant breeze|
|Jul||3.8||Barely noticeable||11.1||Gentle breeze|
|Aug||3.3||Barely noticeable||10.1||Gentle breeze|
|Sep||3.2||Barely noticeable||10||Gentle breeze|
|Oct||2.9||Barely noticeable||8.6||Gentle breeze|
|Nov||2.6||Barely noticeable||7.8||Gentle breeze|
|Dec||2.3||Barely noticeable||6.8||Light breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Chiang Mai?
Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Oct 07, 2019 there are travel warnings and regional advisories for Thailand; exercise a high degree of caution and avoid some areas. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Chiang Mai, Thailand is January, followed by July and February. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Chiang Mai in May. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Chiang Mai Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 99.8°F (37.7°C) and 93.6°F (34.2°C) with warmer temperatures in the later months. Rain is somewhat common with 2 to 12 days of significant precipitation per month. Spring is the slowest for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 9 to 16 days of precipitation per month. June – August is fairly slow season for tourism in Chiang Mai, so lodging and other accommodations may cost slightly less.
Fall (September through November)
Fall daily highs range from 91.1°F (32.8°C) and 86.2°F (30.1°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 3 to 14 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.
Winter (December through February)
Weather is perfect this time of year in Chiang Mai to be enjoyable for warm weather travelers. The average high during this season is between 95.6°F (35.3°C) and 84.1°F (28.9°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are the busiest with tourists.