May Weather in Si Rattana, Thailand

Last updated: August 27, 2025

In May, the average temperature in Si Rattana, Thailand hovers around 29°C (85°F), offering a warm climate perfect for outdoor activities. However, be prepared for temperature swings, as it can dip to a cool 20°C (68°F) or soar to a sizzling 40°C (104°F). Rain is also a factor, with an average precipitation amount of 153 mm (6.0 in) spread over 20 days, contributing to a humidity level of 71%. Pack accordingly for a comfortable visit!

May Temperature in Si Rattana

In May in Si Rattana, the average temperature is 29°C (85°F), with maximums reaching up to 40°C (104°F) and minimums dipping as low as 20°C (68°F). It's a perfect time to enjoy outdoor activities and explore the vibrant atmosphere, but don't forget to stay hydrated and protect yourself from the sun!

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

The chart illustrates May temperature patterns in Si Rattana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si Rattana, May typically has an average temperature of 29°C (85°F), with highs reaching up to 40°C (104°F) and lows dropping to around 20°C (68°F).

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

May Precipitation in Si Rattana

In Si Rattana in May, the precipitation amount is 153 mm (6.0 in) over a span of 20 days.

May Precipitation Trends in Si Rattana

The chart displays monthly precipitation patterns in Si Rattana, 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 Rattana, May typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 20 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Si Rattana

In Si Rattana in May humidity is 71%. With an average temperature of 29°C (85°F), this humidity feels like walking through a warm, damp blanket, making travel uncomfortable and sticky, and often leading to a desire for frequent breaks in shaded or air-conditioned spots.

May Average Humidity in Si Rattana

This chart illustrates the average monthly humidity levels in Si Rattana, 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 Rattana is approximately 71%, 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 Rattana

In Si Rattana in May, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Si Rattana.

Maximum UV Index Levels in Si Rattana for May

The chart shows the monthly maximum UV Index (UVI) for Si Rattana 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 Rattana typically reaches 15, which falls under the extreme exposure category.

Data source: Si Rattana 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 Rattana Compares to Other Months

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

This table compares monthly weather conditions in Si Rattana, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (77°F)	4 mm (0.1 inches)	56%	very high
February Weather	26°C (79°F)	8 mm (0.3 inches)	50%	extreme
March Weather	29°C (84°F)	46 mm (1.8 inches)	41%	extreme
April Weather	29°C (85°F)	63 mm (2.5 inches)	44%	extreme
May Weather	29°C (85°F)	153 mm (6.0 inches)	71%	extreme
June Weather	29°C (84°F)	140 mm (5.5 inches)	83%	extreme
July Weather	28°C (83°F)	190 mm (7.5 inches)	87%	extreme
August Weather	28°C (83°F)	190 mm (7.5 inches)	90%	extreme
September Weather	28°C (82°F)	261 mm (10.3 inches)	89%	extreme
October Weather	27°C (81°F)	165 mm (6.5 inches)	83%	extreme
November Weather	26°C (79°F)	55 mm (2.2 inches)	74%	extreme
December Weather	24°C (76°F)	14 mm (0.5 inches)	68%	very high