Southernmost 10K

Key West, FL, USA · October 10, 2027·
partly-cloudy-night81°·81° high·Breezy·Dry
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Race Day Weather

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81°at start
82° high
Breezy
Dry
Your goal
0:00:00

Hot start

A warm 81°F start means heat management is critical — consider dialing back your goal pace by 10-20 sec/mi. Light winds shouldn't be a major factor for pacing. Moderate humidity at 78% is worth noting for effort level, especially in later miles.

Race day forecast available in 339 days
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Pace Calculator

6.2mi
0:00:00
HH:MM:SS
Pace
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Enter a finish time to see what race day does to it.

Common Goals:

Get forecast alerts for Southernmost 10K

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Plan

Get your personalized Southernmost 10K race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The Southernmost 10K is a 6.2-mile run along the south coast of Key West on Sunday morning of race weekend. The route passes Smathers Beach, runs out and back along the ocean, and finishes with an out and back along the Edward Knight Pier. The course is flat and close to sea level, with the Atlantic beside it for most of the distance.

Race weekend

Sunday, October 10
7:00 AMHalf Marathon (13.1 mi)
7:20 AM10K (6.2 mi)
7:30 AM5K (3.1 mi)
Area Map

Course Map

FAQ

When is the 2027 Southernmost 10K?

The 2027 Southernmost 10K will be held on Sunday October 10, 2027.

What will the weather be like for the 2027 Southernmost 10K?

The forecast calls for a high of 83°F and a low of 80°F with a 14% chance of rain. Check our detailed hourly forecast above for the best 10K race plan.

Historical Weather

Based on 3 years of data
Avg Temp
80°F
L:80° H:80°
RunScore
2
Conditions
Rain Freq
0%
0 of 3 yrs
Wind5mph
Dew77°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2026
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85°/85°-
1
2025
clear-night
75°/75°-
3
2024
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81°/81°-
1