Trader consensus on Polymarket implies a 36.5% probability for a 30°C high in São Paulo on March 29, closely trailed by 29°C at 27.5%, reflecting tight forecast model consensus amid a persistent high-pressure ridge over southeastern Brazil that has delivered dry, sunny conditions and daytime heating near 30°C over the past week. Recent INMET and Climatempo updates project maxima of 29–31°C at São Paulo-Guarulhos International Airport—the market's resolution station—driven by ample solar insolation, light southeast winds, and moderate humidity limiting convective cloud buildup. March 2026 has trended cooler than historical averages (27–28°C highs), but this stable anticyclone has boosted peaks; uncertainty stems from potential afternoon cumulus clouds or slight model divergences in boundary layer mixing, with final NOAA GFS/ECMWF runs due overnight potentially tipping the balance ahead of tomorrow's observations.
Экспериментальная сводка, созданная ИИ на основе данных Polymarket · ОбновленоHighest temperature in Sao Paulo on March 29?
Highest temperature in Sao Paulo on March 29?
30°C 36%
29°C 28%
31°C 19%
28°C 14%
$23,636 Объем
$23,636 Объем
24°C or below
<1%
25°C
<1%
26°C
<1%
27°C
3%
28°C
14%
29°C
28%
30°C
36%
31°C
19%
32°C
3%
33°C
1%
34°C or higher
<1%
30°C 36%
29°C 28%
31°C 19%
28°C 14%
$23,636 Объем
$23,636 Объем
24°C or below
<1%
25°C
<1%
26°C
<1%
27°C
3%
28°C
14%
29°C
28%
30°C
36%
31°C
19%
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.
Открытие рынка: Mar 25, 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 implies a 36.5% probability for a 30°C high in São Paulo on March 29, closely trailed by 29°C at 27.5%, reflecting tight forecast model consensus amid a persistent high-pressure ridge over southeastern Brazil that has delivered dry, sunny conditions and daytime heating near 30°C over the past week. Recent INMET and Climatempo updates project maxima of 29–31°C at São Paulo-Guarulhos International Airport—the market's resolution station—driven by ample solar insolation, light southeast winds, and moderate humidity limiting convective cloud buildup. March 2026 has trended cooler than historical averages (27–28°C highs), but this stable anticyclone has boosted peaks; uncertainty stems from potential afternoon cumulus clouds or slight model divergences in boundary layer mixing, with final NOAA GFS/ECMWF runs due overnight potentially tipping the balance ahead of tomorrow's observations.
Экспериментальная сводка, созданная ИИ на основе данных Polymarket · Обновлено
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