Trader consensus on Polymarket heavily favors 30-31°C highs for São Paulo on March 27, with latest INMET and ECMWF ensemble forecasts clustering tightly around these values amid a stable high-pressure ridge promoting subsidence and daytime heating. Differentiating factors include minor model divergences on afternoon cloud cover from sea breeze incursions, which could cap peaks at 30°C via shading or allow 31-32°C under clearer skies boosting boundary layer warmth. Urban heat island amplification in the city's concrete expanse adds 1-2°C above rural baselines, while historical late-March averages of 28°C underscore the mild warmth from lingering summer influences. Upcoming hourly updates from CPTEC may sharpen resolution odds before evening cooldowns.
Resumo experimental gerado por IA com dados do Polymarket · AtualizadoTemperatura mais alta em São Paulo no dia 27 de março?
Temperatura mais alta em São Paulo no dia 27 de março?
31°C 30%
30°C 29%
29°C 17%
32°C 13%
24°C ou menos
1%
25°C
1%
26°C
2%
27°C
3%
28°C
4%
29°C
17%
30°C
29%
31°C
30%
32°C
13%
33°C
4%
34°C ou mais
2%
31°C 30%
30°C 29%
29°C 17%
32°C 13%
24°C ou menos
1%
25°C
1%
26°C
2%
27°C
3%
28°C
4%
29°C
17%
30°C
29%
31°C
30%
32°C
13%
33°C
4%
34°C ou mais
2%
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 23, 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 heavily favors 30-31°C highs for São Paulo on March 27, with latest INMET and ECMWF ensemble forecasts clustering tightly around these values amid a stable high-pressure ridge promoting subsidence and daytime heating. Differentiating factors include minor model divergences on afternoon cloud cover from sea breeze incursions, which could cap peaks at 30°C via shading or allow 31-32°C under clearer skies boosting boundary layer warmth. Urban heat island amplification in the city's concrete expanse adds 1-2°C above rural baselines, while historical late-March averages of 28°C underscore the mild warmth from lingering summer influences. Upcoming hourly updates from CPTEC may sharpen resolution odds before evening cooldowns.
Resumo experimental gerado por IA com dados do Polymarket · Atualizado
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