May Weather in Union, Philippines

Last updated: August 27, 2025

In Union, Philippines, the average temperature in May reaches a warm 28°C (82°F), with a minimum of 26°C (78°F) and a maximum of 30°C (87°F). During this month, expect 144 mm (5.7 in) of precipitation spread over 23 days, contributing to an average humidity level of 83%. Prepare for a tropical experience!

May Temperature in Union

In May in Union, the average temperature is 28°C (82°F). The maximum can reach 30°C (87°F), and the minimum can be as low as 26°C (78°F). This makes Union a perfect destination for travelers seeking warm and pleasant weather during this time of the year.

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

The chart illustrates May temperature patterns in Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union, May typically has an average temperature of 28°C (82°F), with highs reaching up to 30°C (87°F) and lows dropping to around 26°C (78°F).

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

May Precipitation in Union

In Union in May, the precipitation amount is 144 mm (5.7 in) spread over 23 days.

May Precipitation Trends in Union

The chart displays monthly precipitation patterns in Union, 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 Union, May typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 23 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 Union

In Union in May humidity is 83%. With an average temperature of 28°C (82°F), this humidity feels like stepping into a warm, thick blanket, making travel languid and drenched in sweat.

May Average Humidity in Union

This chart illustrates the average monthly humidity levels in Union, 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 Union is approximately 83%, 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 Union

In Union 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 Union, you can check here.

Maximum UV Index Levels in Union for May

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

Data source: Union 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 Union Compares to Other Months

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

This table compares monthly weather conditions in Union, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	304 mm (12.0 inches)	90%	extreme
February Weather	26°C (80°F)	274 mm (10.8 inches)	90%	extreme
March Weather	27°C (80°F)	208 mm (8.2 inches)	90%	extreme
April Weather	27°C (81°F)	122 mm (4.8 inches)	88%	extreme
May Weather	28°C (82°F)	144 mm (5.7 inches)	83%	extreme
June Weather	28°C (83°F)	142 mm (5.6 inches)	81%	extreme
July Weather	28°C (83°F)	141 mm (5.5 inches)	80%	extreme
August Weather	28°C (83°F)	117 mm (4.6 inches)	81%	extreme
September Weather	28°C (83°F)	115 mm (4.5 inches)	84%	extreme
October Weather	28°C (82°F)	201 mm (7.9 inches)	81%	extreme
November Weather	27°C (81°F)	244 mm (9.6 inches)	84%	extreme
December Weather	27°C (81°F)	428 mm (16.9 inches)	88%	extreme