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December Weather in Santo Tomas, Philippines

Last updated: August 27, 2025

In December, the average temperature in Santo Tomas, Philippines is a pleasant 25°C (78°F), with a minimum of 20°C (69°F) and a maximum reaching up to 34°C (93°F). Visitors can expect significant rainfall, totaling 270 mm (10.6 in) over 24 days, contributing to an average humidity of 87%. This combination of warmth and moisture creates a vibrant, lush environment perfect for exploration!

December Temperature in Santo Tomas

In December in Santo Tomas, the average temperature is 25°C (78°F). Maximums can reach 34°C (93°F), while minimums can drop to as low as 20°C (69°F). This pleasant weather makes it an ideal time for outdoor activities and exploration.

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 25°C (78°F), with highs reaching up to 34°C (93°F) and lows dropping to around 20°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec777778798080797979797978
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 precipitation amount is 270 mm (10.6 in) spread over a duration of 24 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 270 mm (10.6 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec209192138146240245295249263367189270
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 87%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities particularly strenuous and requiring frequent breaks for hydration and shade.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%92%91%87%84%83%82%83%85%82%84%87%
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 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131516161513141415141311
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 Weather25°C (77°F)209 mm (8.2 inches)90%extreme
February Weather25°C (77°F)192 mm (7.6 inches)92%extreme
March Weather25°C (78°F)138 mm (5.4 inches)90%extreme
April Weather26°C (80°F)146 mm (5.8 inches)87%extreme
May Weather27°C (80°F)240 mm (9.4 inches)83%extreme
June Weather26°C (80°F)245 mm (9.6 inches)83%extreme
July Weather26°C (79°F)295 mm (11.6 inches)82%extreme
August Weather26°C (79°F)249 mm (9.8 inches)83%extreme
September Weather26°C (79°F)263 mm (10.3 inches)85%extreme
October Weather26°C (79°F)367 mm (14.5 inches)82%extreme
November Weather26°C (79°F)189 mm (7.4 inches)83%extreme
December Weather25°C (78°F)270 mm (10.6 inches)87%extreme

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