If you are thinking of traveling to Chiang Rai in May, think and plan carefully. The average daytime high temperature is usually around +33°C, and there are only about 2 sunny days in total throughout the whole month. Pack for extremes to ensure that you are as comfortable as possible. Search flightsin one click on Avionero.
Average weather
☀️
+33°C
Avg. max. temperature
+17°C
Min.
+43°C
Max.
314 mm
Total precipitation
77%
Avg. humidity
0 m/s
Avg. wind
2 ☀️
Sunny Days
2 ⛅️
Cloudy
22 🌦
Rainy
Our opinion: Chiang Rai has uncomfortable weather in May.
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Average temperature in Chiang Rai in May
Here are the expected maximum, average and minimum temperatures in Chiang Rai for May based on the historical data.
Last Year
Historical Data
Going from a maximum of +40°C during the day to a minimum of +21°C during the night, the temperature in May averages around +36°C.
The average maximum temperature goes up 37% by the end of the month, compared with the beginning of the month, from +32°C to +39°C.
Is Chiang Rai warm or cold in May?
Chiang Rai is typically hot in May.
Maximum temperatures go down compared to the previous month from +35°C to +33°C. The minimum temperature also goes up from +22°C to +24°C.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
May is one of the warmest months in Chiang Rai, here is the comparison with other months:
Climate in Chiang Rai in May
Chiang Rai weather looks like this, on average, in May and the surrounding months.
April
May
June
Avg. temperature
+35°C
+33°C
+32°C
Min. temperature
+17°C
+17°C
+21°C
Max. temperature
+43°C
+43°C
+39°C
Rainfall
118 mm
314 mm
318 mm
Wind
0 m/s
0 m/s
0 m/s
Humidity
67%
77%
81%
Air pressure
1007 HPa
1006 HPa
1005 HPa
Sunny days
10
2
0
Cloudy days
4
2
1
Rainy days
13
22
26
Snowy days
0
0
0
May typically has worse weather conditions compared to April.It’s getting colder in May. From +35°C in the day, the average maximum temperature lowers to +33°C.Prepare for more rain. Average rainfall goes from 118 mm to 314 mm.Humidity rises from 67% to 77%.The average wind speed doesn’t change much during May, staying around 0 m/s.The days becoming less sunny, going from 10 sunny days in April to 2 in May.
But maybe it is worth considering traveling in June as the weather gets better.
Wind speed in Chiang Rai in May based on historical data.
Last Year
Historical Data
The average wind speed is 1 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Chiang Rai is gradually increasing during May, going from 1 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during May in Chiang Rai based on historical data.
Last Year
Historical Data
Typically, there is a 61% chance of rain on an average day in May, with total rainfall of approximately 195 mm. The maximum amount of rainfall per day is around 62 mm, which is considered heavy rain.May is a pretty wet month with over 19 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Chiang Rai wettest month is August, where a typical day has a 87% chance of precipitation and 404 mm of rainfall per day. February, on the other hand, is the driest month with a mere 18% chance of precipitation and 16 mm of rainfall per day.
How was the weather last May in Chiang Rai?
This is the weather in Chiang Rai in May 2024:
1 May
🌧️
+32°C
2 May
☀️
+36°C
3 May
☁️
+36°C
4 May
☀️
+38°C
5 May
☀️
+39°C
6 May
☀️
+39°C
7 May
☀️
+40°C
8 May
🌧️
+39°C
9 May
🌧️
+34°C
10 May
🌧️
+33°C
11 May
🌧️
+36°C
12 May
🌧️
+31°C
13 May
🌧️
+30°C
14 May
🌧️
+31°C
15 May
☀️
+30°C
16 May
☀️
+34°C
17 May
☀️
+36°C
18 May
☀️
+37°C
19 May
☀️
+37°C
20 May
☀️
+38°C
21 May
☀️
+39°C
22 May
☀️
+39°C
23 May
☀️
+39°C
24 May
☀️
+37°C
25 May
☀️
+36°C
26 May
☀️
+37°C
27 May
☀️
+37°C
28 May
☀️
+37°C
29 May
☀️
+35°C
30 May
☀️
+37°C
31 May
🌧️
+39°C
In May 2024 Chiang Rai had 21 sunny days, 1 cloudy days, and 9 rainy days. The average maximum temperature was +36°C, with an absolute maximum of +40°C and a minimum of +30°C. The average humidity was 72%, with a maximum of 100% and a minimum of 32%. The average wind speed was 1 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in May?
Climate Change over Years
This is how Chiang Rai climate have been changing during last 43 years period.
The climate in Chiang Rai in May has not changed much over the last 43 years.
The average temperature was the lowest in 1999 (+30°C) and the highest in 2010 (+32°C). The driest year was 2019 with only 1196 mm of rainfall, and the wettest year was 2022 with 3394 mm.
FAQ
Frequently asked questions about the weather in Chiang Rai in May:
Is May a good time to visit Chiang Rai?
There is never a bad time to go to Chiang Rai, but the weather isn’t the best in May, so plan on enjoying the great indoor attractions of Chiang Rai and pack for the extremes in weather.
Can you sunbathe in Chiang Rai in May?
Absolutely, May is hot in Chiang Rai. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.
Is Chiang Rai rainy in May?
Chiang Rai is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Chiang Rai in May?
Usually, it’s not very sunny in Chiang Rai in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
Other cities in Thailand
Check out the weather for other cities in Thailand.
For this page, we’ve looked at the typical weather in Chiang Rai, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
