January Weather in Austin, United States

Last updated: June 24, 2025

In January, the average temperature in Austin, United States hovers around 1°C (34°F). Expect chilly extremes, with a minimum dipping to -20°C (-3°F) and a maximum reaching up to 19°C (67°F). You'll experience typically 83 mm (3.3 in) of precipitation over about 9 days, contributing to a high average humidity of 87%.

January Temperature in Austin

In January in Austin, the average temperature is 1°C (34°F). Maximums can reach 19°C (67°F), and minimums can be as low as -20°C (-3°F). Be prepared for a wide range of temperatures during your visit, so pack accordingly!

January Weather in Austin: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Austin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Austin, January typically has an average temperature of 1°C (34°F), with highs reaching up to 19°C (67°F) and lows dropping to around -20°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec343847556775787671604440
Data source: Temperature data for Austin 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 Austin

In Austin in January, the precipitation amount is 83 mm (3.3 in) over the course of 9 days.

January Precipitation Trends in Austin

The chart displays monthly precipitation patterns in Austin, 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 Austin, January typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec831141361341271379396959795102
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Austin

In Austin in January humidity is 87%. With an average temperature of 1°C (34°F), this humidity feels like a chilling blanket enveloping you, making every step outside feel heavy and damp, and leaving you longing for warmth and comfort while traveling.

January Average Humidity in Austin

This chart illustrates the average monthly humidity levels in Austin, 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 Austin is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Austin

In Austin in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Austin, you can check the information here.

Maximum UV Index Levels in Austin for January

The chart shows the monthly maximum UV Index (UVI) for Austin 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 Austin typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111098643
Data source: Austin 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 Austin Compares to Other Months

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

This table compares monthly weather conditions in Austin, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)83 mm (3.3 inches)87%moderate
February Weather3°C (38°F)114 mm (4.5 inches)85%moderate
March Weather8°C (47°F)136 mm (5.4 inches)86%high
April Weather13°C (55°F)133 mm (5.3 inches)84%very high
May Weather19°C (67°F)127 mm (5.0 inches)79%very high
June Weather24°C (75°F)136 mm (5.4 inches)82%extreme
July Weather26°C (78°F)92 mm (3.6 inches)79%very high
August Weather24°C (76°F)95 mm (3.8 inches)70%very high
September Weather22°C (72°F)95 mm (3.7 inches)69%very high
October Weather15°C (60°F)97 mm (3.8 inches)76%high
November Weather7°C (45°F)94 mm (3.7 inches)88%moderate
December Weather4°C (40°F)102 mm (4.0 inches)87%moderate

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