Maratona Internacional de Praia Grande
Race Day Weather
Warm start, high humidity
A warm 71°F start means heat management is critical — consider dialing back your goal pace by 10-20 sec/mi. Light winds shouldn't be a major factor for pacing. High humidity (82%) will make it harder to cool down through sweat — increase fluid intake accordingly.
Pace Calculator
Get forecast alerts for Maratona Internacional de Praia Grande
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 Internacional de Praia Grande 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 Maratona Internacional de Praia Grande is a marathon on Avenida Presidente Castelo Branco in Praia Grande, on the São Paulo state coast in the Baixada Santista region. The flat, paved course starts and finishes near the Mirim beach neighborhood. The event also runs 30K, half marathon, 10K, and 5K races across the same weekend. It is certified by the Confederação Brasileira de Atletismo.
