Southernmost Half Marathon and 10K
Race Day Weather
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.
Pace Calculator
Get forecast alerts for Southernmost Half Marathon and 10K
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
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.