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Udon Thani in May: Weather, Average temperature and Climate

Take a look at past year’s weather for Udon Thani in May and see if it is worth visiting.
Check flight prices to Udon Thani on Avionero:
May

Weather in Udon Thani in May 2025

Uncomfortable Weather
Hot
🌧️
Rainy
If you are thinking of traveling to Udon Thani in May, think and plan carefully. The average daytime high temperature is usually around +34°C, and there are only about 1 sunny days in total throughout the whole month. Pack for extremes to ensure that you are as comfortable as possible. Search flights in one click on Avionero.

Average weather

☀️
+34°C
Avg. max. temperature
+21°C
Min.
+42°C
Max.
198 mm
Total precipitation
77%
Avg. humidity
1 m/s
Avg. wind
1 ☀️
Sunny Days
3 ⛅️
Cloudy
19 🌦
Rainy
Our opinion: Udon Thani has uncomfortable weather in May.

Average temperature in Udon Thani in May

Here are the expected maximum, average and minimum temperatures in Udon Thani for May based on the historical data.
Last Year
Historical Data

Going from a maximum of +42°C during the day to a minimum of +25°C during the night, the temperature in May averages around +36°C.

The average maximum temperature goes up 6% by the end of the month, compared with the beginning of the month, from +36°C to +37°C.

Is Udon Thani warm or cold in May?

Udon Thani is typically hot in May.

Maximum temperatures go down compared to the previous month from +35°C to +34°C. The minimum temperature also goes up from +25°C to +26°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 Udon Thani, here is the comparison with other months:

Climate in Udon Thani in May

Udon Thani weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+35°C+34°C+33°C
Min. temperature
+16°C+21°C+23°C
Max. temperature
+43°C+42°C+39°C
Rainfall
70 mm198 mm198 mm
Wind
1 m/s1 m/s1 m/s
Humidity
67%77%79%
Air pressure
1008 HPa1006 HPa1005 HPa
Sunny days
610
Cloudy days
632
Rainy days
141919
Snowy days
000

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 +34°C. Prepare for more rain. Average rainfall goes from 70 mm to 198 mm. Humidity rises from 67% to 77%. The average wind speed doesn’t change much during May, staying around 1 m/s. The days becoming less sunny, going from 6 sunny days in April to 1 in May.

But maybe it is worth considering traveling in June as the weather gets better.

Wind

Wind speed in Udon Thani in May based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Udon Thani 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 Udon Thani based on historical data.
Last Year
Historical Data
Typically, there is a 45% chance of rain on an average day in May, with total rainfall of approximately 111 mm. The maximum amount of rainfall per day is around 28 mm, which is moderate rain. May is a pretty wet month with over 14 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:
Udon Thani wettest month is August, where a typical day has a 74% chance of precipitation and 277 mm of rainfall per day. December, on the other hand, is the driest month with a mere 6% chance of precipitation and 4 mm of rainfall per day.

How was the weather last May in Udon Thani?

This is the weather in Udon Thani in May 2023:
1 May
☀️
+36°C
2 May
☁️
+37°C
3 May
☁️
+37°C
4 May
☀️
+40°C
5 May
☀️
+41°C
6 May
☀️
+42°C
7 May
☀️
+42°C
8 May
☁️
+35°C
9 May
☀️
+37°C
10 May
☁️
+34°C
11 May
🌧️
+32°C
12 May
🌧️
+34°C
13 May
🌧️
+29°C
14 May
🌧️
+33°C
15 May
☁️
+35°C
16 May
☀️
+37°C
17 May
☀️
+38°C
18 May
☀️
+39°C
19 May
☀️
+39°C
20 May
☀️
+38°C
21 May
☀️
+39°C
22 May
☀️
+38°C
23 May
☁️
+36°C
24 May
☁️
+36°C
25 May
🌧️
+34°C
26 May
☀️
+34°C
27 May
☁️
+35°C
28 May
☁️
+35°C
29 May
☀️
+35°C
30 May
☁️
+36°C
31 May
☀️
+37°C
In May 2023 Udon Thani had 16 sunny days, 10 cloudy days, and 5 rainy days. The average maximum temperature was +36°C, with an absolute maximum of +42°C and a minimum of +29°C. The average humidity was 71%, with a maximum of 100% and a minimum of 38%. The average wind speed was 2 m/s, with a maximum of 7 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change over Years

This is how Udon Thani climate have been changing during last 43 years period.

The climate in Udon Thani in May has not changed much over the last 43 years.

The average temperature was the lowest in 1996 (+31°C) and the highest in 2019 (+33°C). The driest year was 1993 with only 1065 mm of rainfall, and the wettest year was 2002 with 1837 mm.

FAQ

Frequently asked questions about the weather in Udon Thani in May:

Is May a good time to visit Udon Thani?

There is never a bad time to go to Udon Thani, but the weather isn’t the best in May, so plan on enjoying the great indoor attractions of Udon Thani and pack for the extremes in weather.

Can you sunbathe in Udon Thani in May?

Absolutely, May is hot in Udon Thani. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.

Is Udon Thani rainy in May?

Udon Thani 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 Udon Thani in May?

Usually, it’s not very sunny in Udon Thani 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.

Monthly weather in Udon Thani

Source of the data

For this page, we’ve looked at the typical weather in Udon Thani, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

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.