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May Weather in Austin, United States

Last updated: June 24, 2025

In Austin, United States, the average temperature in May hovers around 14°C (57°F), with minimums dipping to -4°C (25°F) and maximums soaring to 29°C (85°F). This month sees an average of 142 mm (5.6 in) of precipitation spread over 15 days, contributing to a notable average humidity of 80%.

May Temperature in Austin

In May in Austin, the average temperature is 14°C (57°F). Maximum temperatures can reach up to 29°C (85°F), while minimums can dip as low as -4°C (25°F). This wide temperature range makes Austin an interesting destination for travelers, offering both mild and cooler weather experiences.

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

The chart illustrates May 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, May typically has an average temperature of 14°C (57°F), with highs reaching up to 29°C (85°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec242734455764706862513730
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.

May Precipitation in Austin

In Austin in May, the total precipitation amount is 142 mm (5.6 in) spread over a period of 15 days.

May Precipitation Trends in Austin

The chart displays monthly precipitation patterns in Austin, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Austin, May typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec81998711814210913097981249293
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Austin

In Austin in May, humidity is 80%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making travel uncomfortable and sticky, as sweat clings to your skin and the air feels heavy with moisture.

May Average Humidity in Austin

This chart illustrates the average monthly humidity levels in Austin, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Austin is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Austin

In Austin in May, 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 Austin.

Maximum UV Index Levels in Austin for May

The chart shows the monthly maximum UV Index (UVI) for Austin in May, 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 May, the maximum UV index in Austin typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Austin May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)81 mm (3.2 inches)89%moderate
February Weather-3°C (28°F)99 mm (3.9 inches)90%moderate
March Weather1°C (34°F)87 mm (3.4 inches)89%high
April Weather7°C (45°F)118 mm (4.6 inches)88%very high
May Weather14°C (57°F)142 mm (5.6 inches)80%very high
June Weather18°C (65°F)109 mm (4.3 inches)79%very high
July Weather21°C (70°F)130 mm (5.1 inches)74%very high
August Weather20°C (68°F)97 mm (3.8 inches)64%very high
September Weather16°C (62°F)98 mm (3.9 inches)67%very high
October Weather11°C (52°F)124 mm (4.9 inches)81%high
November Weather3°C (37°F)92 mm (3.6 inches)89%moderate
December Weather-1°C (30°F)93 mm (3.7 inches)88%low

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