Kids Triathlon Sprint Triathlon Duathlon Aquabike

Montclair Triathlon

Date: Last held Jun 28, 2026, next date to be announced
Location: Montclair, Virginia

Registration for the next edition has not opened.

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Water temperature and wetsuits at Montclair Triathlon

Around June 28, Lake Montclair typically runs about 83°F at the surface (81 to 84°F across 2011 to 2020). The water usually runs above 78°F at this date: wetsuits are allowed but make you ineligible for age-group awards.

A model estimate from the USGS lake temperature model (daily surface temperatures for US lakes), not a measurement. Wetsuit cutoffs are USA Triathlon age-group rules. The race's own water temperature reading on race morning decides.

Start location and course

4398 Spillway Lane, Montclair, VA 22025

Directions to the start

The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.

Where Montclair Triathlon ranks

No. 33 of 50 on Warmest triathlon swims

National lists computed from results, entry fees, course maps and water temperatures; they refresh through the day.

Race details

Where: 4398 Spillway Lane, Montclair, VA 22025Map
Course: Road
Distances: Kids Triathlon, Sprint Triathlon, Duathlon, Aquabike
Editions: 2026 (Jun 28, 2026), 2023 (Jun 25, 2023), 2022 (Jul 24, 2022)
Status: The next edition has not been announced yet. Past events: Sprint Aquabike, Sprint Duathlon, Sprint Relay, Sprint Triathlon, Youth Splash and Dash (11-15 year old).

Organize this race? Add details or a correction

Quick answers

When is Montclair Triathlon?: The next date has not been announced.
How much does it cost?: See the registration page for current pricing.
What distances are offered?: Kids Triathlon, Sprint Triathlon, Duathlon, Aquabike.
Where does it start?: 4398 Spillway Lane, Montclair, VA 22025.

From the organizers

Lake Montclair is set in beautiful Northern Virginia with a great surrounding community supporting this event. Montclair residents enjoy the Lake front setting and the awesome Dolphin Beach where the triathlon starts and finishes.

Montclair is conveniently located 25 minutes south of the Beltway, and just 40 minutes from our nation’s capitol. Montclair is bordered on the south by Prince William National Forest Park, which boasts camping and walking trails. It is also a 15 minute drive from Marine Corps Base Quantico. With two major airports within 40 miles and Potomac Mills Mall 5 miles outside our community, centrally located for shopping, dining, recreation and some of the best sightseeing in the area.