Greenwich Half Marathon
Race Day Weather
Rainy conditions, wind challenges ahead
Runners will face temperatures starting at 59°F, increasing slightly to 61°F during the race. With a light rain expected throughout and a strong headwind reaching 24 mph, adjusting pacing will be crucial. High humidity at 92% will also impact comfort, so staying hydrated is essential. A waterproof layer is recommended for the pre-race wait.
Pace Calculator
Enter a finish time to see what race day does to it.
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.
