It's race day!

Greenwich Half Marathon

Race day
clear-day38°·48° high·Breezy·Dry
7
Register

Race Day Weather

clear-day
38°at start
54° high
Breezy
Dry

Cool start, gradual warm-up

Runners will face a steady temperature rise from 40°F at the start to 50°F by the finish. Light winds from the NE at 9 mph will be present, with humidity at 59%. Runners should consider a conservative pace early on to account for the cool feel and adjust as temperatures increase.

clear-night6
clear-night7
clear-night7
clear-day6
clear-day8
clear-day9
clear-day9
clear-day8
clear-day8

Pace Calculator

Distance: 13.1mi
0:00:00
HH:MM:SS
Pace
—
Weather Adj.
—
Common Goals:

Get forecast alerts for Greenwich 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 Greenwich Half Marathon is an inaugural race held at Greenwich Point Park (Tod's Point) in Old Greenwich, Connecticut, organized by the nonprofit running club Greenwich Road Runners. The certified two-loop course is flat, with only 40 feet of elevation gain, and runs along Long Island Sound through Greenwich Point Park and the Old Greenwich village business district. The race benefits Kids in Crisis, a local charity providing crisis intervention and counseling services.

Area Map

Course Map

FAQ

When is the 2026 Greenwich Half Marathon?

The 2026 Greenwich Half Marathon will be held on Sunday October 18, 2026.

What is the time limit for the Greenwich Half Marathon?

The time limit for the Greenwich Half Marathon is 3 hours.

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

The forecast calls for a high of 56°F and a low of 37°F with a 0% chance of rain.

Historical Weather

Based on 0 years of data
Avg Temp
NaN°F
L:NaN° H:NaN°
RunScore
NaN
Conditions
Rain Freq
NaN%
of 0 yrs
WindNaNmph
DewNaN°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore