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December Weather in Santo Tomas, Philippines

Last updated: August 27, 2025

In December, the average temperature in Santo Tomas, Philippines reaches a warm 27°C (81°F), with temperatures ranging from a comfortable 22°C (71°F) at minimum to a hot 33°C (91°F) at maximum. During this time, you can expect about 116 mm (4.6 in) of precipitation spread over 10 days, contributing to an average humidity level of 86%. Stay prepared for a mix of warmth and moisture!

December Temperature in Santo Tomas

In December in Santo Tomas, the average temperature is 27°C (81°F). Maximums can reach 33°C (91°F), while minimums can be as low as 22°C (71°F). This makes Santo Tomas a warm and pleasant destination for travelers looking to enjoy mild weather.

December Weather in Santo Tomas: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santo Tomas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Tomas, December typically has an average temperature of 27°C (81°F), with highs reaching up to 33°C (91°F) and lows dropping to around 22°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec797982858684828282828280
Data source: Temperature data for Santo Tomas 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 Santo Tomas

In Santo Tomas in December, the total precipitation amount is 116 mm (4.6 in) over a span of 10 days.

December Precipitation Trends in Santo Tomas

The chart displays monthly precipitation patterns in Santo Tomas, 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 Santo Tomas, December typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec61261717120208354269307217117116
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santo Tomas

In Santo Tomas in December, humidity is 86%. With an average temperature of 27°C (81°F), this humidity feels like walking through a steamy blanket, making traveling feel heavy and exhausting as each step absorbs the warm, moist air.

December Average Humidity in Santo Tomas

This chart illustrates the average monthly humidity levels in Santo Tomas, 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 Santo Tomas is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%71%69%69%76%87%89%89%89%86%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santo Tomas

In Santo Tomas in December, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Santo Tomas.

Maximum UV Index Levels in Santo Tomas for December

The chart shows the monthly maximum UV Index (UVI) for Santo Tomas 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 Santo Tomas typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111314151314141414131110
Data source: Santo Tomas 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 Santo Tomas Compares to Other Months

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

This table compares monthly weather conditions in Santo Tomas, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)61 mm (2.4 inches)76%extreme
February Weather26°C (79°F)26 mm (1.0 inches)71%extreme
March Weather28°C (83°F)17 mm (0.7 inches)68%extreme
April Weather29°C (85°F)17 mm (0.7 inches)69%extreme
May Weather30°C (86°F)120 mm (4.7 inches)76%extreme
June Weather29°C (85°F)208 mm (8.2 inches)87%extreme
July Weather28°C (83°F)354 mm (13.9 inches)88%extreme
August Weather28°C (83°F)268 mm (10.6 inches)89%extreme
September Weather28°C (83°F)307 mm (12.1 inches)89%extreme
October Weather28°C (82°F)217 mm (8.5 inches)86%extreme
November Weather28°C (82°F)117 mm (4.6 inches)89%extreme
December Weather27°C (81°F)116 mm (4.6 inches)86%very high

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