May Weather in Austin, United States

Last updated: June 24, 2025

In Austin, United States, the average temperature in May hovers around 15°C (59°F), but it can swing from a chilly -1°C (30°F) to a sweltering 35°C (95°F). Expect an average precipitation of 148 mm (5.8 in) spread across approximately 14 days, and with an average humidity of 74%, be prepared for a moist atmosphere!

May Temperature in Austin

In May in Austin, the average temperature is 15°C (59°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop as low as -1°C (30°F). It's advisable to pack for a wide range of weather conditions to fully enjoy your travels in this diverse climate.

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 15°C (59°F), with highs reaching up to 35°C (95°F) and lows dropping to around -1°C (30°F).

Data source: Temperature data for Austin generated using information from the Copernicus Climate Change Service.

May Precipitation in Austin

In Austin in May, the total precipitation amount is 148 mm (5.8 in) over the course of 14 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 148 mm (5.8 inches) of precipitation spread over approximately 14 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Austin

In Austin in May, humidity is 74%. With an average temperature of 15°C (59°F), this humidity feels like traveling through a warm, sticky blanket that clings to your skin, making outdoor activities a bit uncomfortable and prompting you to seek out shaded areas or cool breezes.

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 74%, offering insight into how humid the weather typically is during this month.

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 is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For 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 9, which falls under the very high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (17°F)	36 mm (1.4 inches)	82%	moderate
February Weather	-9°C (17°F)	46 mm (1.8 inches)	84%	moderate
March Weather	1°C (34°F)	67 mm (2.6 inches)	80%	moderate
April Weather	7°C (44°F)	85 mm (3.3 inches)	81%	very high
May Weather	15°C (59°F)	148 mm (5.8 inches)	74%	very high
June Weather	22°C (71°F)	134 mm (5.3 inches)	80%	very high
July Weather	23°C (73°F)	98 mm (3.9 inches)	80%	very high
August Weather	21°C (70°F)	107 mm (4.2 inches)	77%	very high
September Weather	18°C (64°F)	121 mm (4.8 inches)	75%	very high
October Weather	9°C (49°F)	104 mm (4.1 inches)	80%	moderate
November Weather	1°C (34°F)	45 mm (1.8 inches)	87%	moderate
December Weather	-4°C (25°F)	37 mm (1.5 inches)	83%	moderate