Sao Paulo Marathon weather.

Typically 20°C on race morning; rain in 2 of the last 10 years. Race morning (07:00 to 11:00 local time) in Sao Paulo on race day in each of the last 10 years; the 2027 race is on 4 Apr 2027.

Typical
20°C (68°F)
race-morning average
Coolest
15°C (59°F)
lowest reading, 07:00–11:00
Warmest
26°C (79°F)
highest reading, 07:00–11:00
Wet years
2 of 10
rain, drizzle or worse
Humidity
80%
typical
Wind
12 km/h
typical, at 10 m

Race morning, 07:00–11:00

Year by year

Race dayAverageLow–highHumidityWindRainConditions
5 Apr 202622°C (71°F)18°C (65°F)–26°C (78°F)84%3 km/h0.1 mmOvercast
6 Apr 202518°C (64°F)15°C (60°F)–20°C (68°F)80%16 km/h0.5 mmLight drizzle
7 Apr 202421°C (70°F)18°C (65°F)–24°C (75°F)81%16 km/h0.0 mmMainly clear
2 Apr 202319°C (66°F)17°C (62°F)–21°C (69°F)79%13 km/h0.1 mmOvercast
3 Apr 202221°C (69°F)17°C (63°F)–23°C (74°F)83%18 km/h0.0 mmOvercast
4 Apr 202120°C (67°F)16°C (61°F)–23°C (73°F)79%12 km/h0.0 mmOvercast
5 Apr 202019°C (67°F)16°C (61°F)–22°C (72°F)77%13 km/h0.0 mmOvercast
7 Apr 201922°C (72°F)21°C (70°F)–23°C (74°F)89%8 km/h1.1 mmLight drizzle
1 Apr 201823°C (73°F)20°C (69°F)–25°C (77°F)77%10 km/h0.1 mmOvercast
2 Apr 201718°C (64°F)16°C (60°F)–20°C (68°F)84%8 km/h0.0 mmPartly cloudy

Each row is the race's date that year where we know it, else the same weekday nearest its usual date. Temperatures and humidity are averaged over 07:00 to 11:00 local time, rain is the total over those hours, and conditions are the commonest over the morning.

Kit and pacing

What it means

  • Warm: adjust your goal pace

    Around 20°C on race morning costs most runners time. Plan to run a few seconds per kilometer slower than in cool weather, take on fluid and salt at every station, and wear light colors and sun cream.

  • Humid mornings

    Humidity is usually around 80%, so sweat evaporates slowly and it feels warmer than the thermometer says. Pace on effort, not just the watch.

General guidance from past years' numbers. Check the forecast in race week.

The course 2027 dates and entry

Weather data by Open-Meteo.com, from its historical weather archive (CC BY 4.0).

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