May Weather in Long, Thailand

Last updated: August 27, 2025

In Long, Thailand, the average temperature in May reaches a warm 29°C (85°F), with lows of 23°C (73°F) and highs soaring to 40°C (105°F). Expect a precipitation total of 148 mm (5.8 in) spread over 18 days, and prepare for an average humidity level of 71% that adds to the tropical ambience.

May Temperature in Long

In May in Long, the average temperature is 29°C (85°F). Maximums can reach 40°C (105°F) and minimums can drop to as low as 23°C (73°F). Be prepared for hot and humid weather, making it essential to stay hydrated and plan your activities accordingly while exploring this vibrant destination.

May Weather in Long: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Long, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Long, May typically has an average temperature of 29°C (85°F), with highs reaching up to 40°C (105°F) and lows dropping to around 23°C (73°F).

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

May Precipitation in Long

In Long in May, the total precipitation amount is 148 mm (5.8 in), occurring over the course of 18 days.

May Precipitation Trends in Long

The chart displays monthly precipitation patterns in Long, 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 Long, May typically receives around 148 mm (5.8 inches) of precipitation spread over approximately 18 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 Long

In Long 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 Long

This chart illustrates the average monthly humidity levels in Long, 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 Long 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 Long

In Long 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 Long, you can check here.

Maximum UV Index Levels in Long for May

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

Data source: Long 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 Long Compares to Other Months

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

This table compares monthly weather conditions in Long, 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)	23 mm (0.9 inches)	51%	very high
February Weather	25°C (77°F)	11 mm (0.4 inches)	48%	extreme
March Weather	28°C (84°F)	8 mm (0.3 inches)	45%	extreme
April Weather	29°C (85°F)	87 mm (3.4 inches)	49%	extreme
May Weather	29°C (85°F)	148 mm (5.8 inches)	71%	extreme
June Weather	28°C (84°F)	223 mm (8.8 inches)	84%	extreme
July Weather	28°C (82°F)	237 mm (9.3 inches)	84%	extreme
August Weather	27°C (81°F)	371 mm (14.6 inches)	87%	extreme
September Weather	27°C (82°F)	247 mm (9.7 inches)	84%	extreme
October Weather	27°C (81°F)	166 mm (6.5 inches)	71%	extreme
November Weather	26°C (79°F)	30 mm (1.2 inches)	62%	very high
December Weather	23°C (74°F)	18 mm (0.7 inches)	55%	very high