nomadseason

May Weather in Union, Philippines

Last updated: August 27, 2025

In Union, Philippines, the average temperature in May hovers around 28°C (83°F), with a minimum of 26°C (78°F) and a maximum of 30°C (87°F). Prepare for wet weather, as you can expect 114 mm (4.5 in) of precipitation spread over 22 days. Humidity remains high, averaging around 84%, creating a warm and balmy atmosphere.

May Temperature in Union

In May in Union, the average temperature is 28°C (83°F), with maximums reaching 30°C (87°F) and minimums dipping to as low as 26°C (78°F). This mild and pleasant weather makes it an ideal time for outdoor activities and sightseeing.

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 (83°F), with highs reaching up to 30°C (87°F) and lows dropping to around 26°C (78°F).
JanFebMarAprMayJunJulAugSepOctNovDec808081818282828282828281
Data source: Temperature data for Union generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Union

In Union in May, the total precipitation amount is 114 mm (4.5 in) spread over 22 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 114 mm (4.5 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec184947056114250248190222262176276
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Union

In Union in May, humidity is 84%. With an average temperature of 28°C (83°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and the air almost stifling for traveling.

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 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%80%77%78%85%87%88%89%90%87%90%91%
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.
JanFebMarAprMayJunJulAugSepOctNovDec121416161413131414131211
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.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)184 mm (7.2 inches)85%extreme
February Weather26°C (80°F)94 mm (3.7 inches)80%extreme
March Weather27°C (81°F)70 mm (2.8 inches)77%extreme
April Weather27°C (82°F)56 mm (2.2 inches)78%extreme
May Weather28°C (83°F)114 mm (4.5 inches)84%extreme
June Weather28°C (83°F)250 mm (9.8 inches)87%extreme
July Weather28°C (82°F)248 mm (9.8 inches)88%extreme
August Weather28°C (83°F)190 mm (7.5 inches)89%extreme
September Weather28°C (82°F)222 mm (8.7 inches)90%extreme
October Weather28°C (82°F)262 mm (10.3 inches)87%extreme
November Weather28°C (82°F)176 mm (6.9 inches)90%extreme
December Weather27°C (81°F)276 mm (10.9 inches)91%extreme

Compare Union's Climate with Cities Worldwide