Maratona do Rio (Rio de Janeiro Marathon)
Race Day Weather
Warm start, steady conditions ahead
Runners will face a warm start at 72°F, with temperatures gradually stabilizing around 71°F to 73°F during the race. Humidity will be high at 79%, prompting runners to stay hydrated and adjust their pace conservatively. A light tailwind will assist from miles 1-3, 9-11, 14-15, and 18-21, but a headwind will challenge runners in the final segment from miles 26-27.
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°.
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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.
