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May Weather in Wan Yai, Thailand

Last updated: August 27, 2025

In May, the average temperature in Wan Yai, Thailand is a warm 29°C (84°F). Expect a comfortable minimum of 16°C (62°F) and a sizzling maximum of 39°C (102°F). During this month, rainfall totals around 167 mm (6.6 in) spread over 19 days, contributing to an average humidity of 65%. Whether you're seeking sun or a refreshing drizzle, Wan Yai offers a vibrant climate this season!

May Temperature in Wan Yai

In May in Wan Yai, the average temperature is 29°C (84°F). Maximum temperatures can reach up to 39°C (102°F), while the minimum can drop as low as 16°C (62°F). It's advisable to pack both light clothing for the heat and a light jacket for cooler evenings when traveling.

May Weather in Wan Yai: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Wan Yai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wan Yai, May typically has an average temperature of 29°C (84°F), with highs reaching up to 39°C (102°F) and lows dropping to around 16°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec737581838484828282807773
Data source: Temperature data for Wan Yai 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 Wan Yai

In Wan Yai in May, the precipitation amount is 167 mm (6.6 in) over a span of 19 days.

May Precipitation Trends in Wan Yai

The chart displays monthly precipitation patterns in Wan Yai, 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 Wan Yai, May typically receives around 167 mm (6.6 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec2113968167187392328258168275
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Wan Yai

In Wan Yai in May humidity is 65%. With average temperature 29°C (84°F), this humidity feels like a warm embrace, making outdoor activities comfortable yet requiring you to stay hydrated and take breaks in the shade.

May Average Humidity in Wan Yai

This chart illustrates the average monthly humidity levels in Wan Yai, 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 Wan Yai is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%54%45%40%65%82%90%92%86%80%72%67%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Wan Yai

In Wan Yai 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 Wan Yai, you can check here.

Maximum UV Index Levels in Wan Yai for May

The chart shows the monthly maximum UV Index (UVI) for Wan Yai 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 Wan Yai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9121415141315141412109
Data source: Wan Yai 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 Wan Yai Compares to Other Months

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

This table compares monthly weather conditions in Wan Yai, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)2 mm (0.1 inches)59%very high
February Weather24°C (75°F)11 mm (0.4 inches)54%extreme
March Weather27°C (81°F)39 mm (1.5 inches)45%extreme
April Weather28°C (83°F)68 mm (2.7 inches)40%extreme
May Weather29°C (84°F)167 mm (6.6 inches)65%extreme
June Weather29°C (84°F)187 mm (7.4 inches)82%extreme
July Weather28°C (82°F)392 mm (15.4 inches)90%extreme
August Weather28°C (82°F)328 mm (12.9 inches)92%extreme
September Weather28°C (82°F)258 mm (10.2 inches)86%extreme
October Weather27°C (80°F)168 mm (6.6 inches)80%extreme
November Weather25°C (77°F)27 mm (1.1 inches)72%very high
December Weather23°C (73°F)5 mm (0.2 inches)66%very high

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