New Balance 42k Porto Alegre
Race Day Weather
Cool start, warming trend ahead
Runners will face a temperature increase from 53°F at the start to 69°F by the finish, with average humidity at 74%. Wind will be light, peaking at 9 mph with a mix of tailwinds and headwinds throughout the course. Strategy should include a conservative start and hydration every few miles, especially in the warmer later segments, particularly during the challenging headwinds between miles 3-9 and 25.
Pace Calculator
Get forecast alerts for New Balance 42k Porto Alegre
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 New Balance 42k Porto Alegre race plan
Weather-adjusted pacing, per-mile terrain splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.
Race Info
The New Balance 42K Porto Alegre is an urban marathon in Porto Alegre, Brazil, recognized by World Athletics and ranks as the 2nd best marathon in Brazil. The race starts at the Monumento ao Expedicionário and finishes at Parque Harmonia, winding through flat urban terrain past landmarks like the Centro Histórico, Monumento ao Laçador, and Estádio Beira-Rio.