Suffolk County Marathon

East Islip, NY, USA · October 18, 2026
partly-cloudy-day58°·59° high·Windy·Dry
7
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Race Day Weather

partly-cloudy-day
58°at start
60° high
Windy
Dry

Comfortable temps, moderate wind

Mild 58°F temps at gun time mean comfortable early miles without overheating risk. Moderate winds around 18mph may affect pacing on open sections of the course. Moderate humidity at 68% is worth noting for effort level, especially in later miles.

Race day forecast available in 19 days
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Distance: 26.2mi
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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 63°F and a low of 58°F with a 9% chance of rain.

Historical Weather

Based on 7 years of data
Avg Temp
58°F
L:52° H:62°
RunScore
7
Conditions
Rain Freq
29%
2 of 7 yrs
Wind11mph
Dew48°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-day
57°/69°-
5
2024
clear-day
48°/74°-
7
2023
partly-cloudy-day
51°/57°-
8
2022
cloudy
57°/61°Light
7
2021
partly-cloudy-day
44°/59°-
9
2019
rain
58°/63°Moderate
5
2018
cloudy
46°/53°-
9