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2026 San Antonio Marathon

San Antonio, Texas, United States

calendar_today 04 Dec, 2026 – 06 Dec, 2026

directions_run Running

sell $49.00 – $119.00

About the Event

The San Antonio Marathon, presented by San Antonio Sports, celebrates the spirit and heritage of our city. In collaboration with the City of San Antonio, Visit San Antonio, and Centro, this signature event invites you to experience a premier running celebration in the heart of San Antonio - Where Every Step Tells a Story.

Races Offered

2026 - 5K

Dec 04, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

20:00

sell

$49.00

2026 - Half Marathon

Dec 06, 2026

straighten

Distance — 13.1 Miles

terrain

Type — Running

timer

07:15

sell

$109.00

2026 - Marathon

Dec 06, 2026

straighten

Distance — 26.2 Miles

terrain

Type — Running

timer

07:15

sell

$119.00

Weather History

These values represent the 3-year monthly averages for December in San Antonio.

thermostat Temperature

10.1° / 20.3°

wb_sunny Feels like

7.7° / 18.4°

light_mode Avg sunshine hours

6h 56m

water_drop Avg rainfall

1.3 mm

ac_unit Avg snowfall

—

air Avg wind speed

9.3 km/h (Light breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Low (2.4)

humidity_mid Humidity

66.5%

wb_twilight Sunrise

08:20

nightlight Sunset

18:38

About San Antonio

Learn more about the host city, San Antonio.

San Antonio is the second largest city in the state of Texas and the 7th largest in the United States. It's the 24th largest metropolitan area in the country. Visited by more than 31 million annual visitors, San Antonio is a beautiful city at the axis of three different geological terrains: Hill Country, South Texas Plains and Prairie and Lakes. There's a lot to do in this city: fine art museums, historical missions and plenty of amusement parks in addition to great dining and lots of drinking. The culture and people are vibrant and interesting. San Antonio's downtown is one of the most lively in the nation.