Southernmost Half Marathon and 10K

Key West, FL, USA · October 11, 2026

84°·86° high·Windy·Dry

Weather

Race Day Weather

84°at start

86° high

Windy

Dry

Warm start, adjust pace early

Runners will face temperatures starting at 84°F and rising to 86°F, with high humidity at 81% and a dew point of 78°F making it feel like 94°F. A moderate headwind at 19 mph may challenge pacing strategies. Adjusting pace conservatively and increasing hydration frequency will be essential for performance.

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Distance: 13.1mi

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0:00:00

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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.

Website

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 86°F and a low of 84°F with a 39% chance of rain.

Historical Weather

Based on 2 years of data

Avg Temp

84°F

L:78° H:84°

RunScore

Conditions

Rain Freq

50%

1 of 2 yrs

Wind8mph

Dew77°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Conditions	Low / High	Rain	Dew Point	Score
2025 Southernmost Half Marathon and 10K Partly cloudy throughout the day with morning rain. 2025		75°/82°	Light	75°
2024 Southernmost Half Marathon and 10K Partly cloudy throughout the day with early morning rain. 2024		81°/86°	-	79°

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