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May Weather in San Sai, Thailand

Last updated: August 27, 2025

In San Sai, Thailand, the average temperature in May is a warm 30°C (86°F), with a minimum of 23°C (73°F) and a scorching maximum of 41°C (106°F). Expect 82 mm (3.2 in) of precipitation over 9 days, accompanied by an average humidity of 63%. Enjoy the warmth, but be prepared for occasional rain! 🌦️

May Temperature in San Sai

In May in San Sai, the average temperature is 30°C (86°F). The maximum can reach 41°C (106°F), while the minimum can be as low as 23°C (73°F). Travelers should be prepared for warm weather and stay hydrated while enjoying all that San Sai has to offer.

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

The chart illustrates May temperature patterns in San Sai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Sai, May typically has an average temperature of 30°C (86°F), with highs reaching up to 41°C (106°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec727582848684828181797670
Data source: Temperature data for San Sai 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 San Sai

In San Sai in May, the total precipitation amount is 82 mm (3.2 in), occurring over a span of 9 days.

May Precipitation Trends in San Sai

The chart displays monthly precipitation patterns in San Sai, 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 San Sai, May typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec102142821452182681981562413
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Sai

In San Sai in May humidity is 63%. With an average temperature of 30°C (86°F), this humidity feels like a warm embrace, making traveling a bit sticky but still enjoyable as long as you stay hydrated and take frequent breaks in the shade.

May Average Humidity in San Sai

This chart illustrates the average monthly humidity levels in San Sai, 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 San Sai 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 San Sai

In San Sai 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 San Sai, you can check here.

Maximum UV Index Levels in San Sai for May

The chart shows the monthly maximum UV Index (UVI) for San Sai 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 San Sai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9101313141414141413108
Data source: San Sai 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 San Sai Compares to Other Months

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

This table compares monthly weather conditions in San Sai, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)10 mm (0.4 inches)51%very high
February Weather24°C (75°F)2 mm (0.1 inches)46%very high
March Weather28°C (82°F)1 mm (0.1 inches)38%extreme
April Weather29°C (85°F)42 mm (1.7 inches)36%extreme
May Weather30°C (86°F)82 mm (3.2 inches)63%extreme
June Weather29°C (84°F)145 mm (5.7 inches)81%extreme
July Weather28°C (83°F)218 mm (8.6 inches)83%extreme
August Weather27°C (81°F)268 mm (10.5 inches)91%extreme
September Weather27°C (81°F)198 mm (7.8 inches)83%extreme
October Weather26°C (80°F)156 mm (6.1 inches)67%extreme
November Weather25°C (77°F)24 mm (0.9 inches)60%very high
December Weather21°C (71°F)13 mm (0.5 inches)56%very high

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