The best times to visit Phayao for ideal weather are

November 19th to February 25th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Phayao Travel Info

Weather in Phayao


Average temperatures in Phayao 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 Phayao, the hottest months are April, June, and then May. See average monthly temperatures below. The warmest time of year is generally mid April where highs are regularly around 97.6°F (36.4°C) with temperatures rarely dropping below 74.9°F (23.8°C) at night.

Phayao Temperatures (Fahrenheit)


Phayao Temperatures (Celsius)


“Feels-Like” Temperatures

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.

Phayao Perceived Temperature (F)


Phayao Perceived Temperature (C)



Average Phayao 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.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 84.4 69.1 57.5
Feb 90.1 73.8 60.8
Mar 93.6 78.9 66.3
Apr 95.7 83.2 73
May 92.7 82.3 74.7
Jun 91.2 82.4 75.5
Jul 89.5 81 75
Aug 88.8 80.3 74.4
Sep 89.3 80.2 74
Oct 87.9 77.9 71.2
Nov 86.5 74.1 65.4
Dec 83.4 69.7 59.4

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 29.1 20.6 14.2
Feb 32.3 23.2 16
Mar 34.2 26.1 19.1
Apr 35.4 28.4 22.8
May 33.7 27.9 23.7
Jun 32.9 28 24.2
Jul 31.9 27.2 23.9
Aug 31.6 26.8 23.6
Sep 31.8 26.8 23.3
Oct 31.1 25.5 21.8
Nov 30.3 23.4 18.6
Dec 28.6 20.9 15.2



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Phayao are February, January, and then December. 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 mid August with an average of 4 days of significant precipitation the week of August 13th.

When can you find snow in Phayao? 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 Phayao.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Phayao (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 3% 0 0.8
Feb 1% 0 0.1
Mar 7% 0 1.3
Apr 19% 0 3.5
May 39% 0 7.4
Jun 24% 0 4.2
Jul 40% 0 6.4
Aug 47% 0 7.8
Sep 39% 0 7.7
Oct 28% 0 5.4
Nov 11% 0 1.9
Dec 4% 0 0.6

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 3 0 2
Feb 1 0 0.3
Mar 7 0 3.3
Apr 19 0 8.9
May 39 0 18.8
Jun 24 0 10.7
Jul 40 0 16.3
Aug 47 0 19.8
Sep 39 0 19.6
Oct 28 0 13.7
Nov 11 0 4.8
Dec 4 0 1.5


Humidity and Wind

Phayao has some very humid months, with other comfortably humid months. The least humid month is March (52.4% relative humidity), and the most humid month is October (78.7%).

Wind in Phayao is usually extremely calm. The windiest month is June, followed by July and April. June’s average wind speed of around 2.1 knots (2.4 MPH or 3.9 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 early to mid February where average top sustained speeds reach 7.2 knots, which is considered a gentle breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Phayao.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

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 Barely noticeable 4.9 Light breeze
Feb 1.2 Barely noticeable 5.5 Light breeze
Mar 1.3 Barely noticeable 5.7 Light breeze
Apr 1.7 Barely noticeable 6.2 Light breeze
May 1.5 Barely noticeable 6.3 Light breeze
Jun 2.1 Barely noticeable 6.2 Light breeze
Jul 2.1 Barely noticeable 5.9 Light breeze
Aug 1.4 Barely noticeable 5.6 Light breeze
Sep 0.9 Still 4.7 Light breeze
Oct 0.5 Still 4.2 Light breeze
Nov 0.5 Still 4 Light breeze
Dec 0.7 Still 4.3 Light breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 66%
Feb 56.2%
Mar 52.4%
Apr 56.4%
May 68.8%
Jun 70.2%
Jul 75.1%
Aug 78%
Sep 78.6%
Oct 78.7%
Nov 74.6%
Dec 72.4%


Is it Safe to Travel to Phayao?

Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Dec 04, 2023 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 Nov 27, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Phayao, 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 Phayao 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

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 65.5 in May means 65.5% of the tourists vs. January.



Overall Phayao Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 97.6°F (36.4°C) and 92.1°F (33.4°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 7 to 15 days of precipitation per month. June – August is fairly slow season for tourism in Phayao, so lodging and other accommodations may cost slightly less.

Fall (September through November)

Fall daily highs range from 89.6°F (32°C) and 84.9°F (29.4°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 3 to 12 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 Phayao to be enjoyable for warm weather travelers. The average high during this season is between 93.4°F (34.1°C) and 81.8°F (27.7°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.


Best Times to TravelThailand › Phayao, Thailand