Suffolk County Marathon

East Islip, NY, USA · October 18, 2026
clear-day41°·54° high·Breezy·Dry
8
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Race Day Weather

clear-day
41°at start
57° high
Breezy
Dry

Cool start, warming finish

Runners will face a temperature rise from 41°F at the start to 52°F by the finish. A light headwind in the early miles may challenge pacing, especially from Mile 2 and again from Miles 16 to 17. With moderate humidity at 46%, maintaining hydration will be crucial, particularly during the warmer late race segments. Runners should adjust their pace conservatively to adapt to the rising temperatures.

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Pace Calculator

Distance: 26.2mi
0:00:00
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Race Info

The Suffolk County Marathon is an annual marathon, half marathon, 10K and 5K race weekend held each October on Long Island, New York, with proceeds benefiting local veterans' services. The Sunday races start in Babylon Village and run east along Montauk Highway before crossing the Robert Moses Causeway to Captree and back, finishing at Gardiner County Park in Bay Shore. A companion 5K and kids' fun run take place the day before at Gardiner County Park. The race has run since 2015 under organizer Race Awesome, and its marathon and half marathon courses are USATF certified, with the marathon serving as a Boston Marathon qualifier.

FAQ

When is the 2026 Suffolk County Marathon?

The 2026 Suffolk County Marathon will be held on Sunday October 18, 2026.

Is the Suffolk County Marathon a Boston Marathon Qualifier?

Yes, the Suffolk County Marathon is an official Boston Marathon qualifier.

What is the time limit for the Suffolk County Marathon?

The time limit for the Suffolk County Marathon is 6.5 hours.

What will the weather be like for the 2026 Suffolk County Marathon?

The forecast calls for a high of 57°F and a low of 40°F with a 0% chance of rain.

Historical Weather

Based on 8 years of data
Avg Temp
61°F
L:50° H:61°
RunScore
7
Conditions
Rain Freq
25%
2 of 8 yrs
Wind14mph
Dew45°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
43°/56°-
8
2025
clear-day
52°/69°-
7
2024
clear-day
49°/74°-
8
2023
clear-day
52°/58°-
8
2022
cloudy
58°/59°Light
8
2021
clear-day
43°/58°-
9
2019
rain
59°/64°Moderate
4
2018
cloudy
46°/52°-
8