May Weather in Si That, Thailand

Last updated: August 27, 2025

In Si That, Thailand, the average temperature in May reaches a warm 29°C (85°F). During this time, temperatures can dip as low as 19°C (67°F) and soar to a sizzling 41°C (106°F). Expect about 167 mm (6.6 in) of precipitation over 17 days, contributing to an average humidity of 65%. Prepare for a month that blends warmth with occasional rainfall!

May Temperature in Si That

In May in Si That, the average temperature is 29°C (85°F), with maximums reaching up to 41°C (106°F) and minimums dropping as low as 19°C (67°F). This range of temperatures makes it essential for travelers to pack both lightweight clothing for the heat and layers for cooler evenings.

May Weather in Si That: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Si That, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si That, 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 19°C (67°F).

Data source: Temperature data for Si That generated using information from the Copernicus Climate Change Service.

May Precipitation in Si That

In Si That in May, the precipitation amount is 167 mm (6.6 in) over the course of 17 days.

May Precipitation Trends in Si That

The chart displays monthly precipitation patterns in Si That, 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 Si That, May typically receives around 167 mm (6.6 inches) of precipitation spread over approximately 17 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Si That

In Si That in May humidity is 65%. With an average temperature of 29°C (85°F), this humidity feels like a dense, warm blanket enveloping you as you travel, making the air thick and slightly uncomfortable, yet still invigorating for exploring the sights.

May Average Humidity in Si That

This chart illustrates the average monthly humidity levels in Si That, 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 Si That is approximately 65%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Si That

In Si That 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 Si That, you can check here.

Maximum UV Index Levels in Si That for May

The chart shows the monthly maximum UV Index (UVI) for Si That 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 Si That typically reaches 14, which falls under the extreme exposure category.

Data source: Si That 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 Si That Compares to Other Months

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

This table compares monthly weather conditions in Si That, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	4 mm (0.2 inches)	59%	very high
February Weather	25°C (77°F)	14 mm (0.6 inches)	54%	extreme
March Weather	28°C (83°F)	36 mm (1.4 inches)	45%	extreme
April Weather	29°C (85°F)	80 mm (3.1 inches)	40%	extreme
May Weather	29°C (85°F)	167 mm (6.6 inches)	65%	extreme
June Weather	29°C (85°F)	157 mm (6.2 inches)	82%	extreme
July Weather	29°C (84°F)	266 mm (10.5 inches)	90%	extreme
August Weather	28°C (83°F)	235 mm (9.3 inches)	92%	extreme
September Weather	28°C (83°F)	223 mm (8.8 inches)	86%	extreme
October Weather	27°C (81°F)	117 mm (4.6 inches)	80%	extreme
November Weather	26°C (79°F)	17 mm (0.7 inches)	72%	very high
December Weather	23°C (74°F)	6 mm (0.2 inches)	66%	very high