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May Weather in Santiago, Philippines

Last updated: August 27, 2025

In May, the average temperature in Santiago, Philippines hovers around 28°C (83°F), creating a warm and inviting atmosphere. Expect a comfortable minimum of 26°C (79°F) and a peak at 30°C (87°F). While soaking up the sun, be prepared for 115 mm (4.5 in) of precipitation spread over 22 days, resulting in an average humidity of 84%.

May Temperature in Santiago

In May in Santiago, the average temperature is 28°C (83°F), with maximums reaching up to 30°C (87°F) and minimums dropping as low as 26°C (79°F). This mild and warm climate makes it an ideal destination for travelers seeking pleasant weather.

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 28°C (83°F), with highs reaching up to 30°C (87°F) and lows dropping to around 26°C (79°F).
JanFebMarAprMayJunJulAugSepOctNovDec808081818282828382828281
Data source: Temperature data for Santiago generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Santiago

In Santiago in May, the precipitation amount is 115 mm (4.5 in) over a span of 22 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 115 mm (4.5 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec1771027048115223217175215235174264
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Santiago

In Santiago 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 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 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 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.
JanFebMarAprMayJunJulAugSepOctNovDec131316161413131414141211
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.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)177 mm (7.0 inches)85%extreme
February Weather27°C (80°F)102 mm (4.0 inches)80%extreme
March Weather27°C (81°F)70 mm (2.8 inches)77%extreme
April Weather27°C (82°F)48 mm (1.9 inches)78%extreme
May Weather28°C (83°F)115 mm (4.5 inches)84%extreme
June Weather28°C (83°F)223 mm (8.8 inches)87%extreme
July Weather28°C (83°F)217 mm (8.5 inches)88%extreme
August Weather28°C (83°F)175 mm (6.9 inches)89%extreme
September Weather28°C (83°F)215 mm (8.5 inches)90%extreme
October Weather28°C (82°F)235 mm (9.3 inches)87%extreme
November Weather28°C (82°F)174 mm (6.8 inches)90%extreme
December Weather27°C (81°F)264 mm (10.4 inches)91%extreme

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