Maratona Internacional de Praia Grande

Praia Grande, Brazil · June 20, 2027
partly-cloudy-day71°·72° high·Breezy·Dry
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Race Day Weather

partly-cloudy-day
71°at start
73° high
Breezy
Dry
Your goal
0:00:00

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.

Race day forecast available in 243 days
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Pace Calculator

26.2mi
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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.

Race Plan

Get your personalized Maratona Internacional de Praia Grande 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 Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

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.

Race weekend

Saturday, June 19
6:00 AMHalf Marathon (13.1 mi)
9:00 AM5K (3.1 mi)
Sunday, June 20
5:00 AM30K (18.6 mi)
8:00 AM10K (6.2 mi)
10:00 AM5K Beach (3.1 mi)

FAQ

When is the 2027 Maratona Internacional de Praia Grande?

The 2027 Maratona Internacional de Praia Grande will be held on Sunday June 20, 2027.

Is the Maratona Internacional de Praia Grande a Boston Marathon Qualifier?

Yes, the Maratona Internacional de Praia Grande is an official Boston Marathon qualifier.

What will the weather be like for the 2027 Maratona Internacional de Praia Grande?

The forecast calls for a high of 74°F and a low of 70°F with a 11% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 2 years of data
Avg Temp
56°F
L:54° H:61°
RunScore
8
Conditions
Rain Freq
50%
1 of 2 yrs
Wind5mph
Dew52°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-night
54°/62°Light
7
2025
cloudy
54°/60°-
8