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January Weather in San Antonio, Philippines

Last updated: August 27, 2025

In January, the average temperature in San Antonio, Philippines is a pleasant 26°C (78°F), with minimums dipping to 21°C (70°F) and maximums soaring to 32°C (90°F). Expect about 185 mm (7.3 in) of precipitation spread over 16 days, contributing to an average humidity of 82%. Perfect for those who enjoy a warm, humid climate with occasional rain!

January Temperature in San Antonio

In January in San Antonio, the average temperature is 26°C (78°F), with maximums reaching 32°C (90°F) and minimums dropping to as low as 21°C (70°F). This pleasant weather makes it an ideal time for outdoor activities and exploring the local attractions.

January Weather in San Antonio: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in San Antonio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Antonio, January typically has an average temperature of 26°C (78°F), with highs reaching up to 32°C (90°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec787880828382818181818179
Data source: Temperature data for San Antonio 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.

January Precipitation in San Antonio

In San Antonio in January, the precipitation amount is 185 mm (7.3 in) over the course of 16 days.

January Precipitation Trends in San Antonio

The chart displays monthly precipitation patterns in San Antonio, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In San Antonio, January typically receives around 185 mm (7.3 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec185887576172319503496422327215255
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Antonio

In San Antonio in January, humidity is 82%. With an average temperature of 26°C (78°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air almost tangible, which can be quite challenging for traveling.

January Average Humidity in San Antonio

This chart illustrates the average monthly humidity levels in San Antonio, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in San Antonio is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%78%77%79%83%86%87%87%88%85%89%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Antonio

In San Antonio in January, 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 San Antonio.

Maximum UV Index Levels in San Antonio for January

The chart shows the monthly maximum UV Index (UVI) for San Antonio in January, 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 January, the maximum UV index in San Antonio typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111315151414141415131111
Data source: San Antonio January 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 January Weather in San Antonio Compares to Other Months

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

This table compares monthly weather conditions in San Antonio, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (78°F)185 mm (7.3 inches)82%extreme
February Weather26°C (78°F)88 mm (3.5 inches)78%extreme
March Weather27°C (80°F)75 mm (3.0 inches)77%extreme
April Weather28°C (82°F)76 mm (3.0 inches)79%extreme
May Weather29°C (84°F)172 mm (6.8 inches)83%extreme
June Weather28°C (83°F)319 mm (12.5 inches)86%extreme
July Weather27°C (82°F)503 mm (19.8 inches)87%extreme
August Weather27°C (82°F)495 mm (19.5 inches)87%extreme
September Weather27°C (81°F)422 mm (16.6 inches)88%extreme
October Weather27°C (81°F)326 mm (12.9 inches)85%extreme
November Weather27°C (81°F)215 mm (8.5 inches)89%extreme
December Weather26°C (80°F)255 mm (10.0 inches)89%extreme

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