Tucson Shamrock 5K

Tucson, AZ, USA · March 14, 2027·
clear-day53°·60° high·Light·Dry
10
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Race Day Weather

clear-day
53°at start
71° high
Breezy
Dry
Your goal
0:00:00

Comfortable temps, big temp swing

Mild 53°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 71°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 135 days
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Pace Calculator

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Race Plan

Get your personalized Tucson Shamrock 5K race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The Tucson Shamrock 5K is an out-and-back run on the paved Rillito River Loop trail system, starting and finishing at Brandi Fenton Memorial Park in Tucson. The course follows dedicated asphalt and concrete trail and is very flat, with a few meters of elevation change in total. It shares its start and finish line with the half marathon and 10K on the Sunday of the St. Patrick's-themed race weekend.

Race weekend

Sunday, March 14
7:30 AMHalf Marathon (13.1 mi)7:45 AM10K (6.2 mi)
8:00 AM5K (3.1 mi)

FAQ

When is the 2027 Tucson Shamrock 5K?

The 2027 Tucson Shamrock 5K will be held on Sunday March 14, 2027.

What will the weather be like for the 2027 Tucson Shamrock 5K?

The forecast calls for a high of 73°F and a low of 47°F with a 3% chance of rain. Check our detailed hourly forecast above for the best 5K race plan.

Historical Weather

Based on 3 years of data
Avg Temp
55°F
L:51° H:59°
RunScore
9
Conditions
Rain Freq
0%
0 of 3 yrs
Wind4mph
Dew29°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
54°/64°-
9
2025
clear-day
46°/54°-
10
2024
clear-day
54°/59°-
9