Islamorada Half Marathon

Islamorada, FL, USA · December 13, 2026·
partly-cloudy-day74°·74° high·Windy·Dry
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Islamorada Half Marathon race day weather

partly-cloudy-day
74°at start
75° high
Windy
Dry
Your goal
0:00:00

Warm and breezy, adjust pace

Runners will face a consistent temperature of 74°F throughout the race, with an average humidity of 74% and a dew point of 66°F. Winds from the ENE will be moderate at 16 mph, creating a headwind effect. Given the warmth and humidity, runners should start conservatively and monitor hydration closely.

Race day forecast available in 19 days
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About the Islamorada Half Marathon

The Islamorada Half Marathon is held in December in Islamorada in the Florida Keys, with a 10K that starts at the same 7:00 AM gun. The out-and-back course starts and finishes at Robbie's Marina on the Overseas Highway (US-1), runs southwest along the highway to a turnaround just past mile 6, and returns with a short out-and-back into a neighborhood near mile 10. The Islamorada Running Company also holds the Rumrunner Run 5K and 10K and the Beach N' Beer Mile the day before.

Race weekend

Saturday, December 12
8:00 AMRumrunner Run 5K (3.1 mi)
8:00 AMRumrunner Run 10K (6.2 mi)
12:00 PMBeach N' Beer Mile (1.0 mi)
Sunday, December 13
7:00 AMHalf Marathon (13.1 mi)
7:00 AM10K (6.2 mi)
Area Map
Course Map

Islamorada Half Marathon FAQ

When is the 2026 Islamorada Half Marathon?

The 2026 Islamorada Half Marathon will be held on Sunday December 13, 2026.

What will the weather be like for the 2026 Islamorada Half Marathon?

The forecast calls for a high of 76°F and a low of 73°F with a 8% chance of rain.

What is the weather usually like for the Islamorada Half Marathon?

Over the 7 years racecast.io has race-day weather for (2015 to 2025), it averaged 74°F at the start and 76°F by a typical finish. Rain fell during race hours in 2 of those years (2016 and 2025).

What was the hottest Islamorada Half Marathon?

Of the 7 years on record, 2018 was the warmest, reaching 78°F during race hours. The coldest start was 2018, at 72°F.

What was the windiest Islamorada Half Marathon?

Of the 7 years on record, 2015 was the windiest, with wind averaging 15 mph during race hours. The calmest was 2025, at 7 mph.

Islamorada Half Marathon weather history

Based on 7 years of data
Avg Temp
75°F
L:74° H:76°
RunScore
3
Conditions
Rain Freq
29%
2 of 7 yrs
Wind11mph
Dew70°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
rain
72°/74°Light
3
2023
clear-day
76°/77°-
3
2022
clear-day
72°/75°-
3
2018
partly-cloudy-day
76°/78°-
3
2018
partly-cloudy-night
72°/75°-
4
2016
cloudy
75°/76°Light
3
2015
partly-cloudy-day
75°/77°-
3