New Balance 42k Porto Alegre
Race Day Weather
Mild temps, variable winds
Runners will face temperatures starting at 55°F and rising to 65°F, with humidity at 83%. Crosswinds will challenge the first four miles and return intermittently, while tailwinds will assist during miles 5-6 and 20-21. With light rain expected, hydration is essential, and runners should consider pacing conservatively, especially in the headwind segments around miles 13-14 and 19.
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.
