Key West Half Marathon
Key West Half Marathon race day weather
Warm, moderate wind
Runners will face steady temperatures of 72°F throughout the race, with an average humidity of 75% making it feel quite warm. A moderate headwind from the east at 18 mph may affect pacing, so runners should consider adjusting their strategy accordingly. Staying hydrated is crucial given the humidity levels.
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About the Key West Half Marathon
The Key West Half Marathon is held in January in Key West, Florida, on the Sunday of a race weekend that also includes 5K, 8K and 10K races. The course starts near Caroline Street and Trumbo Road in the Historic Seaport, runs through Old Town and up Duval Street, then follows South Roosevelt Boulevard along Smathers Beach to a turnaround and returns to a finish behind Waterfront Brewery. The 2026 weekend drew more than 5,100 participants, and the 2027 race is the 29th edition. Aid stations are cup free, so runners carry their own bottle.
