racecast.ioPartly cloudy throughout the day.
Light Rain
40%
Wind
13mph
Light Rain
25%
Details
Light Rain
25%
Pre-Race
Race
Post-Race
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Race Overview
The Southernmost Half Marathon and 10K takes place each October in Key West, Florida, starting and finishing at Higgs Beach. The half marathon route passes the Southernmost Point, Truman Waterfront Park, Mile Marker 0, and Mallory Square before finishing along Smathers Beach and the Edward Knight Pier. The event is organized by Jupiter, Florida-based Integrity Multisport. All finishers receive a t-shirt and medal.
WikipediaFAQ
When is the 2026 Southernmost Half Marathon and 10K?
The 2026 Southernmost Half Marathon and 10K will be held on Sunday October 11, 2026.
Southernmost Half Marathon and 10K Weather History
Southernmost Half Marathon and 10K Weather Averages
Average Temp: 81°, Average Low: 78°, Average High: 84°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 78° | 78° | 80° | 81° | 83° | 83° | 83° | 84° |
| Feel | 82° | 82° | 84° | 85° | 92° | 92° | 93° | 94° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 3mph | 4mph | 9mph | 8mph | 7mph | 6mph | 9mph | 8mph |
| Dew | 76° | 76° | 77° | 76° | 77° | 77° | 77° | 77° |
| RunScore |  | | |  | | | | |
Southernmost Half Marathon and 10K 2025
Oct 12, 2025
Partly cloudy throughout the day with morning rain.
Low: 75°, High: 83°, Light Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp |  75° |  75° | 79° |  79° | 82° | 82° | 82° | 82° |
| Feel | 75° | 75° | 79° | 79° | 88° | 89° | 88° | 88° |
| Rain | - | - | - | light | - | - | - | - |
| Wind | 0mph | 1mph | 12mph | 8mph | 7mph | 8mph | 10mph | 8mph |
| Dew | 74° | 74° | 75° | 74° | 75° | 76° | 75° | 75° |
| RunScore |  | | | | | | | |
Southernmost Half Marathon and 10K 2024
Oct 13, 2024
Partly cloudy throughout the day with early morning rain.
Low: 80°, High: 86°, Moderate Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 81° | 81° | 81° | 82° | 84° | 84° | 85° | 86° |
| Feel | 89° | 89° | 89° | 92° | 96° | 96° | 98° | 100° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 8mph | 7mph | 8mph | 8mph | 4mph | 8mph | 8mph |
| Dew | 78° | 78° | 78° | 78° | 79° | 79° | 79° | 79° |
| RunScore | | | | |  | | |  |