May Weather in Santiago, Philippines

Last updated: August 27, 2025

In May, the average temperature in Santiago, Philippines is a warm 29°C (85°F). You'll experience minimums of about 21°C (71°F) and can reach as high as 39°C (102°F). Be prepared for some moisture, as the region sees about 173 mm (6.8 in) of precipitation over 14 days. With an average humidity of 77%, it’s essential to stay hydrated and cool!

May Temperature in Santiago

In May in Santiago, the average temperature is 29°C (85°F). Maximum temperatures can reach 39°C (102°F), while minimums may drop to as low as 21°C (71°F). Be prepared for warm weather and stay hydrated while exploring!

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

The chart illustrates May temperature patterns in Santiago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago, May typically has an average temperature of 29°C (85°F), with highs reaching up to 39°C (102°F) and lows dropping to around 21°C (71°F).

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

May Precipitation in Santiago

In Santiago in May, the precipitation amount is 173 mm (6.8 in) during a span of 14 days.

May Precipitation Trends in Santiago

The chart displays monthly precipitation patterns in Santiago, 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 Santiago, May typically receives around 173 mm (6.8 inches) of precipitation spread over approximately 14 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 Santiago

In Santiago in May humidity is 77%. With an average temperature of 29°C (85°F), this humidity feels like a tropical embrace, making travel feel damp and heavy, as the air clings to your skin and weighs you down, urging you to seek refuge in shaded areas or cool breezes.

May Average Humidity in Santiago

This chart illustrates the average monthly humidity levels in Santiago, 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 Santiago is approximately 77%, 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 Santiago

In Santiago 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 Santiago, you can check here.

Maximum UV Index Levels in Santiago for May

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

Data source: Santiago 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 Santiago Compares to Other Months

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

This table compares monthly weather conditions in Santiago, 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)	119 mm (4.7 inches)	77%	extreme
February Weather	24°C (75°F)	77 mm (3.0 inches)	73%	extreme
March Weather	26°C (79°F)	74 mm (2.9 inches)	71%	extreme
April Weather	27°C (81°F)	46 mm (1.8 inches)	73%	extreme
May Weather	29°C (85°F)	173 mm (6.8 inches)	77%	extreme
June Weather	30°C (86°F)	107 mm (4.2 inches)	85%	extreme
July Weather	29°C (84°F)	241 mm (9.5 inches)	86%	extreme
August Weather	29°C (84°F)	200 mm (7.9 inches)	87%	extreme
September Weather	28°C (82°F)	194 mm (7.7 inches)	87%	extreme
October Weather	27°C (81°F)	192 mm (7.6 inches)	86%	extreme
November Weather	26°C (79°F)	193 mm (7.6 inches)	89%	very high
December Weather	25°C (77°F)	185 mm (7.3 inches)	85%	very high