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May Weather in Khon San, Thailand

Last updated: August 27, 2025

In May, the average temperature in Khon San, Thailand hovers around 28°C (83°F). Temperatures can vary significantly, with minimums dipping to 20°C (69°F) and soaring to maximums of 39°C (102°F). During this time, expect about 160 mm (6.3 in) of precipitation spread across 21 days, contributing to an average humidity level of 69%.

May Temperature in Khon San

In May in Khon San, the average temperature is 28°C (83°F). Maximums can reach 39°C (102°F), while minimums can drop to as low as 20°C (69°F). This makes Khon San an ideal destination for travelers seeking warm weather and plenty of sunshine.

May Weather in Khon San: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Khon San, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Khon San, May typically has an average temperature of 28°C (83°F), with highs reaching up to 39°C (102°F) and lows dropping to around 20°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec747681838383828281807772
Data source: Temperature data for Khon San 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 Khon San

In Khon San in May, the precipitation amount is 160 mm (6.3 in), occurring over the course of 21 days.

May Precipitation Trends in Khon San

The chart displays monthly precipitation patterns in Khon San, 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 Khon San, May typically receives around 160 mm (6.3 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec7124077160146193185211148218
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Khon San

In Khon San in May, humidity is 69%. With an average temperature of 28°C (83°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor exploration a bit more strenuous and requiring plenty of hydration and breaks in the shade.

May Average Humidity in Khon San

This chart illustrates the average monthly humidity levels in Khon San, 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 Khon San is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec52%49%39%40%69%81%83%87%86%74%63%57%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Khon San

In Khon San 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 Khon San, you can check here.

Maximum UV Index Levels in Khon San for May

The chart shows the monthly maximum UV Index (UVI) for Khon San 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 Khon San typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9121414141314141413109
Data source: Khon San 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 Khon San Compares to Other Months

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

This table compares monthly weather conditions in Khon San, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)7 mm (0.3 inches)52%very high
February Weather24°C (76°F)12 mm (0.5 inches)49%extreme
March Weather27°C (82°F)40 mm (1.6 inches)39%extreme
April Weather28°C (83°F)77 mm (3.0 inches)40%extreme
May Weather28°C (83°F)160 mm (6.3 inches)69%extreme
June Weather28°C (83°F)146 mm (5.8 inches)81%extreme
July Weather28°C (83°F)193 mm (7.6 inches)83%extreme
August Weather28°C (82°F)185 mm (7.3 inches)87%extreme
September Weather27°C (81°F)211 mm (8.3 inches)86%extreme
October Weather26°C (80°F)148 mm (5.8 inches)74%extreme
November Weather25°C (77°F)21 mm (0.8 inches)63%very high
December Weather22°C (73°F)8 mm (0.3 inches)57%very high

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