Maratona do Rio (Rio de Janeiro Marathon)
Race Day Weather
Warm and humid, adjust pace
Runners will face warm temperatures starting at 71°F and peaking at 73°F as they approach the finish. With an average humidity of 79%, hydration strategy will be crucial, particularly in the middle miles with climbs at mile 10 and 13. A light tailwind will aid runners in the early and later stages, but a headwind will challenge them in the final miles. Starting conservatively is advised to manage the heat and humidity.
The finish is 18 miles from the start, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 71° and finish around 9:25 AM in 72°.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Maratona do Rio (Rio de Janeiro Marathon)
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Maratona do Rio (Rio de Janeiro Marathon) race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
Race Info
Maratona do Rio is Brazil's largest marathon and one of Latin America's biggest running festivals, held annually since 1979 with a World Athletics Elite Label. The point-to-point course runs from Praia da Reserva in Recreio dos Bandeirantes to Marina da Glória in Aterro do Flamengo. Since 2026 the race has run its restored original route, climbing Elevado do Joá around km 14 and Avenida Niemeyer's São Conrado hill around km 19.5 after the road reopened following a landslide closure, then passing Leblon, Ipanema, and Copacabana beaches before finishing at the Marina. The course gains about 168 meters and has a 6-hour cutoff.
