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January Weather in San Antonito, United States

Last updated: June 24, 2025

In January, the average temperature in San Antonito, United States is a chilly 0°C (31°F), with minimum lows plunging to -20°C (-3°F) and maximum highs reaching 14°C (57°F). Expect about 23 mm (0.9 in) of precipitation spread over 5 days, contributing to an average humidity of 78%. Stay prepared for this brisk and moist climate!

January Temperature in San Antonito

In January in San Antonito, the average temperature is 0°C (31°F), with maximums reaching 14°C (57°F) and minimums dipping as low as -20°C (-3°F). Be sure to pack warm clothing and prepare for varying weather conditions during your travels.

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

The chart illustrates January temperature patterns in San Antonito, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Antonito, January typically has an average temperature of 0°C (31°F), with highs reaching up to 14°C (57°F) and lows dropping to around -20°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec313545536372747267534334
Data source: Temperature data for San Antonito 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 Antonito

In San Antonito in January, the precipitation amount is 23 mm (0.9 in) over the course of 5 days.

January Precipitation Trends in San Antonito

The chart displays monthly precipitation patterns in San Antonito, 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 Antonito, January typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec232426282735914238552416
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Antonito

In San Antonito in January, humidity is 78%. With an average temperature of 0°C (31°F), this humidity feels like a heavy blanket wrapped around you, making every step feel more labored, and the cold air bites at your skin, creating a sharp contrast that can make traveling uncomfortable and challenging.

January Average Humidity in San Antonito

This chart illustrates the average monthly humidity levels in San Antonito, 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 Antonito is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%79%66%60%57%55%57%65%72%78%81%79%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Antonito

In San Antonito in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in San Antonito for better planning.

Maximum UV Index Levels in San Antonito for January

The chart shows the monthly maximum UV Index (UVI) for San Antonito 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 Antonito typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479111213121211864
Data source: San Antonito 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 Antonito Compares to Other Months

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

This table compares monthly weather conditions in San Antonito, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (31°F)23 mm (0.9 inches)78%moderate
February Weather2°C (35°F)24 mm (1.0 inches)79%high
March Weather7°C (45°F)26 mm (1.0 inches)66%very high
April Weather12°C (54°F)28 mm (1.1 inches)60%extreme
May Weather17°C (63°F)27 mm (1.1 inches)57%extreme
June Weather22°C (73°F)34 mm (1.4 inches)55%extreme
July Weather23°C (74°F)91 mm (3.6 inches)56%extreme
August Weather22°C (72°F)42 mm (1.7 inches)65%extreme
September Weather19°C (67°F)38 mm (1.5 inches)72%extreme
October Weather12°C (53°F)55 mm (2.2 inches)78%very high
November Weather6°C (43°F)24 mm (0.9 inches)81%high
December Weather1°C (34°F)16 mm (0.6 inches)79%moderate

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