May Weather in Phan, Thailand

Last updated: August 27, 2025

In Phan, Thailand, the average temperature in May hovers around 29°C (84°F), making it pleasantly warm. Expect a minimum of 21°C (71°F) and peaks reaching up to 41°C (105°F). Be prepared for 150 mm (5.9 in) of precipitation spread over 19 days, resulting in an average humidity of 63%. Whether you're planning outdoor activities or seeking refuge indoors, this month promises a mix of heat and hydration!

May Temperature in Phan

In May in Phan, the average temperature is 29°C (84°F). Maximum can reach 41°C (105°F) and minimum can be as low as 21°C (71°F). Travelers should be prepared for a hot climate with significant temperature variations throughout the day.

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

The chart illustrates May temperature patterns in Phan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phan, May typically has an average temperature of 29°C (84°F), with highs reaching up to 41°C (105°F) and lows dropping to around 21°C (71°F).

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

May Precipitation in Phan

In Phan in May, the precipitation amount is 150 mm (5.9 in) over the course of 19 days.

May Precipitation Trends in Phan

The chart displays monthly precipitation patterns in Phan, 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 Phan, May typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 19 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 Phan

In Phan in May humidity is 63%. With an average temperature of 29°C (84°F), this humidity feels like a warm embrace, making travel a bit sticky but still manageable; the air is heavy and richly scented, immersing you in the vibrant atmosphere of the surroundings.

May Average Humidity in Phan

This chart illustrates the average monthly humidity levels in Phan, 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 Phan is approximately 63%, 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 Phan

In Phan 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 Phan, you can check here.

Maximum UV Index Levels in Phan for May

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

Data source: Phan 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 Phan Compares to Other Months

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

This table compares monthly weather conditions in Phan, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (71°F)	31 mm (1.2 inches)	51%	very high
February Weather	23°C (74°F)	10 mm (0.4 inches)	46%	very high
March Weather	27°C (81°F)	7 mm (0.3 inches)	38%	extreme
April Weather	28°C (83°F)	129 mm (5.1 inches)	36%	extreme
May Weather	29°C (84°F)	150 mm (5.9 inches)	63%	extreme
June Weather	29°C (84°F)	180 mm (7.1 inches)	81%	extreme
July Weather	28°C (83°F)	239 mm (9.4 inches)	83%	extreme
August Weather	27°C (82°F)	277 mm (10.9 inches)	91%	extreme
September Weather	27°C (82°F)	177 mm (7.0 inches)	83%	extreme
October Weather	26°C (80°F)	116 mm (4.6 inches)	67%	extreme
November Weather	25°C (77°F)	29 mm (1.1 inches)	60%	very high
December Weather	21°C (70°F)	23 mm (0.9 inches)	56%	very high