The 2026 event has concluded.

Austin Half Marathon

Austin, TX, USAJanuary 18, 2026
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Race Day Weather

clear-day
32°
65° high
Breezy
Dry

Cool start, warming trend ahead

Runners will face a chilly start at 32°F, gradually warming to a comfortable 61°F. Winds will be light, with a gentle breeze from the SW at 6 mph, allowing for smooth running conditions. With low humidity at 35%, hydration should be monitored but is less critical early on; pacing should remain steady until temperatures rise.

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The 3M Half Marathon boasts one of the fastest 21.098 km (13.110 mi) courses in the country. Runners enjoy a point-to-point course with mostly downhill running. Starting in north Austin and finishing near the Texas State Capitol, the course has a net elevation drop of more than 300 feet. As a result, the event has adapted the tagline “Downhill to Downtown.” Because the net elevation drop exceeds a ration of 1:1,000, times recorded in the race are ineligible for world record consideration and for entry standards in World Athletics events. High Five Events based out of Austin, produces the 3M Half Marathon and the Austin Marathon. Wikipedia

Area Map

Course Map

FAQ

When is the 2026 Austin Half Marathon?

The 2026 Austin Half Marathon will be held on Sunday January 18, 2026.

Historical Weather

Based on 2 years of data
Avg Temp
39°F
L:32° H:41°
RunScore
8
Conditions
Rain Freq
0%
0 of 2 yrs
Wind6mph
Dew21°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
clear-day
28°/42°-
6
2024
cloudy
36°/39°-
7