Jacksonville Marathon

Jacksonville, FL, USA · December 12, 2026
partly-cloudy-day55°·66° high·Breezy·Dry
9
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Race Day Weather

partly-cloudy-day
55°at start
66° high
Breezy
Dry

Mild temps, variable winds

Runners will face temperatures starting at 55°F and peaking at 66°F, with humidity at 73%. A light tailwind will assist from miles 1-2, then headwinds will challenge runners from miles 3-10 and 14-16. Adjust pacing strategies accordingly, especially during headwind sections, and take advantage of tailwinds in the later miles for a stronger finish.

Race day forecast available in 58 days
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Pace Calculator

Distance: 26.2mi
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Race Info

The Ameris Bank Jacksonville Marathon & Half Marathon course is USA Track and Field certified (FL10117EBM), flat, fast and very scenic with 85% shade. There are no steep hills, bridges or overpasses. The course starts at Bolles School on San Jose Blvd. heads north, then south to Mandarin, does a loop and heads back along the St. Johns River to Bolles. Water & Electrolyte stations are located about every two miles. Clocks and mile markers at every mile. The 5K runs the first 5K of the marathon course and finishes on San Jose in front of The Bolles School. Source

FAQ

When is the 2026 Jacksonville Marathon?

The 2026 Jacksonville Marathon will be held on Saturday December 12, 2026.

Is the Jacksonville Marathon a Boston Marathon Qualifier?

Yes, the Jacksonville Marathon is an official Boston Marathon qualifier.

What is the time limit for the Jacksonville Marathon?

The time limit for the Jacksonville Marathon is 6 hours.

What will the weather be like for the 2026 Jacksonville Marathon?

The forecast calls for a high of 69°F and a low of 55°F with a 6% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 14 years of data
Avg Temp
67°F
L:56° H:67°
RunScore
8
Conditions
Rain Freq
14%
2 of 14 yrs
Wind9mph
Dew53°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-night
46°/70°-
8
2024
partly-cloudy-night
59°/71°-
7
2023
partly-cloudy-night
65°/78°-
8
2022
cloudy
59°/63°-
9
2021
partly-cloudy-night
66°/69°-
8
2020
clear-night
45°/56°-
7
2018
partly-cloudy-night
53°/64°-
9
2017
cloudy
53°/59°-
9
2016
cloudy
67°/80°-
7
2014
partly-cloudy-night
61°/78°-
8
2013
cloudy
70°/73°Moderate
6
2012
rain
57°/73°Light
8
2011
clear-night
48°/59°-
8
2010
cloudy
43°/45°-
7