The best times to visit Chiang Rai for ideal weather are
November 5th to March 11th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Chiang Rai Travel Guide
Weather in Chiang Rai
Average temperatures in Chiang Rai vary little. 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 25th 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 Rai, the hottest months are June, May, and then April. See average monthly temperatures below. The warmest time of year is generally mid April where highs are regularly around 95.6°F (35.3°C) with temperatures rarely dropping below 72.1°F (22.3°C) at night.
Chiang Rai Temperatures (Fahrenheit)
Chiang Rai 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 Rai Perceived Temperature (F)
Chiang Rai Perceived Temperature (C)
Average Chiang Rai 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 Rai 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 early February. For example, on the week of February 5th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid July with an average of 5 days of significant precipitation the week of July 16th.
When can you find snow in Chiang Rai? 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.
The graph below shows the % chance of rainy and snowy days in Chiang Rai.
Snow on the Ground
The graph below shows the average snow on the ground in Chiang Rai (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 Rai has some very humid months, with other comfortably humid months. The least humid month is March (55.6% relative humidity), and the most humid month is August (79%).
Wind in Chiang Rai is usually extremely calm. The windiest month is June, followed by May and April. June’s average wind speed of around 2 knots (2.3 MPH or 3.6 KPH) is considered “light air.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid April where average top sustained speeds reach 6.5 knots, which is considered a light breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Chiang Rai.
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||1.2||Barely noticeable||4.8||Light breeze|
|Feb||1.4||Barely noticeable||5.3||Light breeze|
|Mar||1.5||Barely noticeable||5.5||Light breeze|
|Apr||1.9||Barely noticeable||6.2||Light breeze|
|May||1.9||Barely noticeable||6.2||Light breeze|
|Jun||2||Barely noticeable||6||Light breeze|
|Jul||1.9||Barely noticeable||5.9||Light breeze|
|Aug||1.7||Barely noticeable||5.7||Light breeze|
|Sep||1.5||Barely noticeable||5.5||Light breeze|
|Oct||1.4||Barely noticeable||5.4||Light breeze|
|Nov||1.4||Barely noticeable||5.1||Light breeze|
|Dec||1.1||Barely noticeable||4.4||Light breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Chiang Rai?
Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Mar 17, 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 Mar 13, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Chiang Rai, 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 Rai 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 Rai Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 95.6°F (35.3°C) and 90.3°F (32.4°C) with warmer temperatures in the later months. Rain is somewhat common with 3 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 11 to 19 days of precipitation per month. June – August is fairly slow season for tourism in Chiang Rai, so lodging and other accommodations may cost slightly less.
Fall (September through November)
Fall daily highs range from 89.5°F (31.9°C) and 83.8°F (28.8°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 4 to 15 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 Rai to be enjoyable for warm weather travelers. The average high during this season is between 91.4°F (33°C) and 80.8°F (27.1°C). On average, it rains or snows a smalll amount: 1 to 2 times per month. These times of year are the busiest with tourists.