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December Weather in Santiago, Philippines

Last updated: August 27, 2025

In December, the average temperature in Santiago, Philippines is a pleasant 25°C (77°F). Expect a minimum of 19°C (67°F) and a maximum of 32°C (90°F), offering a nice range for outdoor activities. However, be prepared for 185 mm (7.3 in) of precipitation over 21 days, contributing to an average humidity level of 85%. Choose your plans accordingly!

December Temperature in Santiago

In December in Santiago, the average temperature is 25°C (77°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop to as low as 19°C (67°F). This mild and pleasant climate makes it an ideal destination for outdoor activities and sightseeing.

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

The chart illustrates December 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, December typically has an average temperature of 25°C (77°F), with highs reaching up to 32°C (90°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec757579818486848382807977
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.

December Precipitation in Santiago

In Santiago in December, the total precipitation amount is 185 mm (7.3 in) over the course of 21 days.

December Precipitation Trends in Santiago

The chart displays monthly precipitation patterns in Santiago, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Santiago, December typically receives around 185 mm (7.3 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec119777446173107241200195192193185
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santiago

In Santiago in December, humidity is 85%. With an average temperature of 25°C (77°F), this humidity feels like a warm, heavy blanket wrapping around you, making every outdoor excursion feel both stifling and sticky, requiring frequent breaks in the shade to stay comfortable while exploring.

December Average Humidity in Santiago

This chart illustrates the average monthly humidity levels in Santiago, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Santiago is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%73%71%73%77%85%86%87%87%86%89%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santiago

In Santiago in December, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Santiago.

Maximum UV Index Levels in Santiago for December

The chart shows the monthly maximum UV Index (UVI) for Santiago in December, 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 December, the maximum UV index in Santiago typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11131415141414141413109
Data source: Santiago December 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 December 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 December’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 December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)119 mm (4.7 inches)77%extreme
February Weather24°C (75°F)77 mm (3.0 inches)73%extreme
March Weather26°C (79°F)74 mm (2.9 inches)71%extreme
April Weather27°C (81°F)46 mm (1.8 inches)73%extreme
May Weather29°C (85°F)173 mm (6.8 inches)77%extreme
June Weather30°C (86°F)107 mm (4.2 inches)85%extreme
July Weather29°C (84°F)241 mm (9.5 inches)86%extreme
August Weather29°C (84°F)200 mm (7.9 inches)87%extreme
September Weather28°C (82°F)194 mm (7.7 inches)87%extreme
October Weather27°C (81°F)192 mm (7.6 inches)86%extreme
November Weather26°C (79°F)193 mm (7.6 inches)89%very high
December Weather25°C (77°F)185 mm (7.3 inches)85%very high

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