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Race Overview
The San Antonio Marathon is held in early December in downtown San Antonio, Texas, with a marathon, a half marathon and a Friday-night 5K. The marathon and half marathon start at 7:15 AM and finish at Hemisfair. The marathon course is USATF-certified and a Boston qualifier. The race is organized by San Antonio Sports with the City of San Antonio.
WikipediaFAQ
When is the 2026 San Antonio Marathon?
The 2026 San Antonio Marathon will be held on Sunday December 6, 2026.
Is the San Antonio Marathon a Boston Marathon Qualfier?
Yes, the San Antonio Marathon is an official Boston Marathon qualifier.
What is the time limit for the San Antonio Marathon?
The time limit for the San Antonio Marathon is 7 hours.
San Antonio Marathon Course Map
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San Antonio Marathon Weather History
San Antonio Marathon Weather Averages
Average Temp: 64°, Average Low: 55°, Average High: 80°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp | 61° | 61° | 63° | 67° | 73° | 78° | 80° |
| Feel | 61° | 61° | 63° | 67° | 73° | 78° | 80° |
| Rain | - | - | - | - | - | - | - |
| Wind | 5mph | 9mph | 9mph | 6mph | 8mph | 9mph | 11mph |
| Dew | 59° | 58° | 58° | 57° | 54° | 47° | 43° |
| RunScore |  | |  | | | |  |
San Antonio Marathon 2025
Dec 7, 2025
Clearing in the afternoon.
Low: 55°, High: 80°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|
| Temp |  61° | 61° | 63° |  67° | 73° | 78° | 80° |
| Feel | 61° | 61° | 63° | 67° | 73° | 78° | 80° |
| Rain | - | - | - | - | - | - | - |
| Wind | 5mph | 9mph | 9mph | 6mph | 8mph | 9mph | 11mph |
| Dew | 59° | 58° | 58° | 57° | 54° | 47° | 43° |
| RunScore | | | | | | | |