Trader consensus on Polymarket strongly favors a highest temperature of 30°C in São Paulo today at 47.5% implied probability, closely tracking the latest INMET and CPTEC forecasts projecting a peak of 30°C amid a persistent atmospheric blocking pattern that ensures mostly sunny skies and minimal cloud interference. This stable high-pressure system has dominated the region over the past week, suppressing precipitation and allowing efficient solar heating during late austral summer, where historical March averages hover at 28-29°C but recent dry conditions have nudged daytime highs upward. Forecasts from global models like GFS and ECMWF show ensemble agreement near 30°C, though light sea breezes or isolated afternoon clouds could moderate to 29°C or elevate to 31°C. Official observations from Congonhas Airport will track peak heating through late afternoon, with updates expected hourly.
Resumo experimental gerado por IA com dados do Polymarket · AtualizadoHighest temperature in Sao Paulo on March 28?
Highest temperature in Sao Paulo on March 28?
30°C 45%
29°C 26%
31°C 14%
28°C 6%
$41,005 Vol.
$41,005 Vol.
24°C or below
<1%
25°C
<1%
26°C
<1%
27°C
1%
28°C
6%
29°C
26%
30°C
45%
31°C
14%
32°C
3%
33°C
1%
34°C or higher
1%
30°C 45%
29°C 26%
31°C 14%
28°C 6%
$41,005 Vol.
$41,005 Vol.
24°C or below
<1%
25°C
<1%
26°C
<1%
27°C
1%
28°C
6%
29°C
26%
30°C
45%
31°C
14%
32°C
3%
33°C
1%
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 24, 2026, 6:01 AM ET
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...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.
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Trader consensus on Polymarket strongly favors a highest temperature of 30°C in São Paulo today at 47.5% implied probability, closely tracking the latest INMET and CPTEC forecasts projecting a peak of 30°C amid a persistent atmospheric blocking pattern that ensures mostly sunny skies and minimal cloud interference. This stable high-pressure system has dominated the region over the past week, suppressing precipitation and allowing efficient solar heating during late austral summer, where historical March averages hover at 28-29°C but recent dry conditions have nudged daytime highs upward. Forecasts from global models like GFS and ECMWF show ensemble agreement near 30°C, though light sea breezes or isolated afternoon clouds could moderate to 29°C or elevate to 31°C. Official observations from Congonhas Airport will track peak heating through late afternoon, with updates expected hourly.
Resumo experimental gerado por IA com dados do Polymarket · Atualizado
Cuidado com os links externos.
Cuidado com os links externos.
Frequently Asked Questions