
From the Organizer
https://www.hartfordmarathon.com/niantic-bay-triathlon/
Events
Weather
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
80°
Typical Low
65°
Chance of Rain
32%
Based on US Climate Normals data from Groton New London Ap, 8 mi from the venue.
Host City
Elevation
109 ft
Nearest Airport
WST
Westerly State Airport · 21 mi
Major Hub
BDL
Bradley International Airport · 49 mi
Time Zone
Eastern Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at Niantic Bay Triathlon, put it on the calendar, and turn “someday” into a start date.
Coming Up
Robert J. Aaron Memorial Mighty Montauk Triathlon /Aquabike and Sprint
24 miles away
Lake Terramuggus Sprint Triathlon #1
25 miles away
Lake Terramuggus Sprint Triathlon #2
25 miles away
Montauk Lighthouse Triathlon
24 miles away
From Endurance Grid
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
Three sports, one race — swim, bike, run in sequence, with transitions that are a discipline of their own.
Open water, open roads, and competition with yourself. Cross the finish line knowing what it took to get there.
Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think.
Frequently Asked Questions (FAQs)
Niantic Bay Triathlon
Aug 9, 2026