Trader consensus on Polymarket reflects tight uncertainty in Sao Paulo's forecast models for March 29, with implied probabilities clustering around 29–31°C due to a persistent subtropical high-pressure ridge fostering warm, stable conditions over southeast Brazil. Recent INMET observations show daily highs of 28–30°C in the past week, supported by low cloud cover and urban heat island effects amplifying temperatures at the Mirante station, the market's resolution point. ECMWF ensembles slightly favor 31°C (mean ~30.5°C), while GFS runs lean toward 30°C amid minor disagreements on afternoon convective activity; historical March averages hover at 27–29°C, but this anomalously dry pattern boosts peaks. New model updates expected in 24 hours could sharpen odds before the diurnal maximum.
Resumo experimental gerado por IA com dados do Polymarket · AtualizadoHighest temperature in Sao Paulo on March 29?
Highest temperature in Sao Paulo on March 29?
30°C 29%
31°C 24%
29°C 19%
32°C 12%
24°C or below
1%
25°C
1%
26°C
2%
27°C
3%
28°C
8%
29°C
22%
30°C
29%
31°C
24%
32°C
12%
33°C
4%
34°C or higher
1%
30°C 29%
31°C 24%
29°C 19%
32°C 12%
24°C or below
1%
25°C
1%
26°C
2%
27°C
3%
28°C
8%
29°C
22%
30°C
29%
31°C
24%
32°C
12%
33°C
4%
34°C or higher
1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Sao Paulo-Guarulhos International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/br/guarulhos/SBGR.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Mercado Aberto: Mar 25, 2026, 6:01 AM ET
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Trader consensus on Polymarket reflects tight uncertainty in Sao Paulo's forecast models for March 29, with implied probabilities clustering around 29–31°C due to a persistent subtropical high-pressure ridge fostering warm, stable conditions over southeast Brazil. Recent INMET observations show daily highs of 28–30°C in the past week, supported by low cloud cover and urban heat island effects amplifying temperatures at the Mirante station, the market's resolution point. ECMWF ensembles slightly favor 31°C (mean ~30.5°C), while GFS runs lean toward 30°C amid minor disagreements on afternoon convective activity; historical March averages hover at 27–29°C, but this anomalously dry pattern boosts peaks. New model updates expected in 24 hours could sharpen odds before the diurnal maximum.
Resumo experimental gerado por IA com dados do Polymarket · Atualizado
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