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Race Overview
The Tucson Shamrock Half Marathon takes runners along dedicated asphalt and concrete trails on the Rillito River Loop, starting and finishing at Brandi Fenton Memorial Park. The St. Patrick's-themed race also offers 10K and 5K distances. It is organized by StartLine Racing, an Arizona race management company that runs several similarly-themed events across the state.
WikipediaFAQ
When is the 2027 Tucson Shamrock Half Marathon?
The 2027 Tucson Shamrock Half Marathon will be held on Sunday March 14, 2027.
What is the time limit for the Tucson Shamrock Half Marathon?
The time limit for the Tucson Shamrock Half Marathon is 4 hours.
Tucson Shamrock Half Marathon Weather History
Tucson Shamrock Half Marathon Weather Averages
Average Temp: 62°, Average Low: 46°, Average High: 76°
| Time | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|
| Temp | 51° | 59° | 65° | 69° |
| Feel | 51° | 59° | 65° | 69° |
| Rain | - | - | - | - |
| Wind | 4mph | 4mph | 5mph | 11mph |
| Dew | 30° | 29° | 28° | 27° |
| RunScore |  |  | | |
Tucson Shamrock Half Marathon 2026
Mar 8, 2026
Clear conditions throughout the day.
Low: 48°, High: 81°
| Time | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|
| Temp | 54° | 64° | 71° | 77° |
| Feel | 54° | 64° | 71° | 77° |
| Rain | - | - | - | - |
| Wind | 5mph | 6mph | 0mph | 9mph |
| Dew | 23° | 25° | 28° | 30° |
| RunScore | | | | |
Tucson Shamrock Half Marathon 2025
Mar 9, 2025
Clear conditions throughout the day.
Low: 41°, High: 75°
| Time | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|
| Temp | 46° | 54° | 60° | 64° |
| Feel | 46° | 54° | 60° | 64° |
| Rain | - | - | - | - |
| Wind | 0mph | 1mph | 0mph | 6mph |
| Dew | 30° | 27° | 24° | 20° |
| RunScore | | | | |
Tucson Shamrock Half Marathon 2024
Mar 10, 2024
Clear conditions throughout the day.
Low: 50°, High: 73°
| Time | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|
| Temp | 54° | 59° | 65° | 67° |
| Feel | 54° | 59° | 65° | 67° |
| Rain | - | - | - | - |
| Wind | 9mph | 4mph | 13mph | 18mph |
| Dew | 35° | 35° | 31° | 30° |
| RunScore | | | |  |