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May Weather in Wiang Chai, Thailand

Last updated: August 27, 2025

In Wiang Chai, Thailand, the average temperature in May is a warm 29°C (85°F), with daily highs reaching up to 41°C (106°F) and lows dipping to around 21°C (71°F). This month typically sees 127 mm (5.0 in) of precipitation spread across 16 days, resulting in an average humidity level of 63%. Perfect for those who enjoy a mix of sun and occasional rain!

May Temperature in Wiang Chai

In May in Wiang Chai, the average temperature is 29°C (85°F). Maximum temperatures can reach 41°C (106°F), while minimums can drop to as low as 21°C (71°F). Be prepared for hot days and warm nights, making it a great time for beach activities and outdoor adventures!

May Weather in Wiang Chai: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Wiang Chai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wiang Chai, May typically has an average temperature of 29°C (85°F), with highs reaching up to 41°C (106°F) and lows dropping to around 21°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec707380828484838282807669
Data source: Temperature data for Wiang Chai generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Wiang Chai

In Wiang Chai in May, the precipitation amount is 127 mm (5.0 in), distributed over 16 days.

May Precipitation Trends in Wiang Chai

The chart displays monthly precipitation patterns in Wiang Chai, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Wiang Chai, May typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec321381191282032783542291463123
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Wiang Chai

In Wiang Chai in May humidity is 63%. With an average temperature of 29°C (85°F), this humidity feels like a warm, muggy embrace that can leave travelers feeling sticky and slightly drained, making it essential to stay hydrated and take breaks in shaded areas.

May Average Humidity in Wiang Chai

This chart illustrates the average monthly humidity levels in Wiang Chai, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Wiang Chai is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec51%46%38%36%64%81%83%91%83%67%61%56%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Wiang Chai

In Wiang Chai in May, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Wiang Chai, you can check here.

Maximum UV Index Levels in Wiang Chai for May

The chart shows the monthly maximum UV Index (UVI) for Wiang Chai in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Wiang Chai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec910131314131414141398
Data source: Wiang Chai May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Wiang Chai Compares to Other Months

Weather in Wiang Chai varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Wiang Chai, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Wiang Chai, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)32 mm (1.3 inches)51%very high
February Weather23°C (73°F)13 mm (0.5 inches)46%very high
March Weather27°C (80°F)8 mm (0.3 inches)38%extreme
April Weather28°C (83°F)119 mm (4.7 inches)36%extreme
May Weather29°C (85°F)127 mm (5.0 inches)63%extreme
June Weather29°C (84°F)203 mm (8.0 inches)81%extreme
July Weather28°C (83°F)278 mm (10.9 inches)83%extreme
August Weather28°C (82°F)354 mm (13.9 inches)91%extreme
September Weather28°C (82°F)229 mm (9.0 inches)83%extreme
October Weather26°C (80°F)146 mm (5.8 inches)67%extreme
November Weather24°C (76°F)31 mm (1.2 inches)60%very high
December Weather21°C (70°F)23 mm (0.9 inches)56%very high

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