Southernmost Half Marathon and 10K

Key West, FL, USA · October 11, 2026
partly-cloudy-day81°·81° high·Breezy·Dry
6
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Race Day Weather

partly-cloudy-day
81°at start
81° high
Breezy
Dry

Warm and humid, adjust pace early

Runners will face a steady temperature of 81°F throughout the race, accompanied by high humidity at 79% and a dew point of 74°F. Winds will be light to moderate from the E, reaching up to 12 mph. With these conditions, it's crucial for runners to start conservatively and stay hydrated to maintain performance.

Race day forecast available in 21 days
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Distance: 13.1mi
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Race Info

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.

Area Map

Course Map

FAQ

When is the 2026 Southernmost Half Marathon and 10K?

The 2026 Southernmost Half Marathon and 10K will be held on Sunday October 11, 2026.

What will the weather be like for the 2026 Southernmost Half Marathon and 10K?

The forecast calls for a high of 83°F and a low of 80°F with a 14% chance of rain.

Historical Weather

Based on 2 years of data
Avg Temp
84°F
L:78° H:84°
RunScore
5
Conditions
Rain Freq
50%
1 of 2 yrs
Wind8mph
Dew77°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
clear-night
75°/82°Light
6
2024
partly-cloudy-night
81°/86°-
5