New Haven Road Race Half Marathon

New Haven, CT, USA · September 6, 2027·
partly-cloudy-day70°·71° high·Breezy·Dry
4
Register

Race Day Weather

partly-cloudy-day
70°at start
74° high
Breezy
Dry
Your goal
0:00:00

Warm start

Starting at 70°F, heat will be a factor from the gun — go out conservative and stay on top of hydration. 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 309 days
partly-cloudy-night4
partly-cloudy-day4
partly-cloudy-day4
partly-cloudy-day4
partly-cloudy-day4
partly-cloudy-day4
partly-cloudy-day4
partly-cloudy-day4
partly-cloudy-day4

Pace Calculator

13.1mi
0:00:00
HH:MM:SS
Pace
—

Enter a finish time to see what race day does to it.

Common Goals:

Get forecast alerts for New Haven Road Race Half Marathon

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

Race Info

The New Haven Road Race Half Marathon starts and finishes on the New Haven Green and covers the same flat city loop as the 20K, with an extra stretch added on Whitney Avenue. The course runs west past Yale and Edgewood Park into the Westville neighborhood, then loops back through downtown and out State Street to East Rock Park, where English Drive and Farnum Drive wind through the park. Runners return down Whitney Avenue and Temple Street to the Green, with spectators lining the streets through the center of the city on Labor Day.

Race weekend

Monday, September 6
8:10 AMKids Fun Run (0.5 mi)
8:30 AMHalf Marathon (13.1 mi)
8:30 AMHalf Marathon Relay (13.1 mi)
8:30 AM5K (3.1 mi)
8:30 AM20K (12.4 mi)
Area Map

Course Map

FAQ

When is the 2027 New Haven Road Race Half Marathon?

The 2027 New Haven Road Race Half Marathon will be held on Monday September 6, 2027.

What is the time limit for the New Haven Road Race Half Marathon?

The time limit for the New Haven Road Race Half Marathon is 3 hours.

What will the weather be like for the 2027 New Haven Road Race Half Marathon?

The forecast calls for a high of 75°F and a low of 68°F with a 10% chance of rain.

Historical Weather

Based on 49 years of data
Avg Temp
69°F
L:66° H:71°
RunScore
5
Conditions
Rain Freq
16%
8 of 49 yrs
Wind7mph
Dew61°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
60°/69°-
6
2025
clear-day
62°/67°-
6
2024
partly-cloudy-day
70°/73°-
4
2023
clear-day
73°/84°-
3
2022
cloudy
74°/76°-
3
2021
partly-cloudy-day
70°/73°-
4
2020
clear-day
73°/79°-
3
2019
clear-day
72°/75°-
4
2018
cloudy
77°/80°-
2
2017
partly-cloudy-day
62°/69°-
6
2016
partly-cloudy-day
62°/65°-
7
2015
partly-cloudy-day
69°/76°-
4
2014
cloudy
75°/79°-
3
2013
cloudy
75°/75°Light
3
2012
partly-cloudy-day
66°/72°-
5
2011
clear-day
74°/75°-
3
2010
clear-day
59°/68°-
7
2009
clear-day
58°/66°-
7
2008
clear-day
66°/75°-
5
2007
clear-day
66°/72°-
5
2006
clear-day
61°/68°Light
6
2005
clear-day
62°/69°-
6
2004
clear-day
56°/65°-
7
2003
rain
64°/66°Light
5
2002
rain
61°/62°Moderate
5
2001
clear-day
62°/68°-
6
2000
rain
74°/75°Light
3
1999
cloudy
74°/74°-
3
1998
cloudy
75°/77°-
3
1997
rain
71°/73°Light
4
1996
clear-day
71°/78°-
4
1995
clear-day
63°/72°-
5
1994
partly-cloudy-day
56°/62°-
9
1993
partly-cloudy-day
67°/74°-
4
1992
cloudy
63°/65°-
5
1991
clear-day
56°/63°-
8
1990
partly-cloudy-day
67°/71°-
5
1989
clear-day
63°/68°-
7
1988
cloudy
70°/71°-
4
1987
cloudy
69°/70°Light
4
1986
partly-cloudy-day
59°/68°-
6
1985
cloudy
67°/68°-
5
1984
cloudy
64°/68°-
6
1983
partly-cloudy-day
71°/77°-
3
1982
partly-cloudy-day
56°/66°-
7
1981
cloudy
62°/65°-
6
1980
partly-cloudy-day
77°/77°-
3
1979
cloudy
74°/76°Light
3
1978
clear-day
65°/71°-
5