Trader consensus on Polymarket favors a highest temperature of 30°C at 36.5% implied probability for São Paulo on March 29, closely followed by 29°C at 26.5%, reflecting the latest forecast model consensus from INMET, CPTEC, and international sources like AccuWeather and BBC Weather projecting daytime highs of 29–30°C amid a dominant subtropical high-pressure ridge promoting subsidence, clear skies, and light easterly winds of 10–16 km/h. Recent observations over the past week show similar warm, mostly sunny conditions with highs around 29°C, such as on March 27, under stable atmospheric patterns and no approaching fronts, though isolated afternoon showers could slightly cap heating. Official station data from Congonhas or Guarulhos airports will resolve the market, with final model updates expected today.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Sao Paulo on March 29?
Highest temperature in Sao Paulo on March 29?
30°C 36%
29°C 27%
31°C 19%
28°C 12%
$22,466 Vol.
$22,466 Vol.
24°C or below
<1%
25°C
<1%
26°C
<1%
27°C
3%
28°C
12%
29°C
27%
30°C
36%
31°C
19%
32°C
3%
33°C
1%
34°C or higher
<1%
30°C 36%
29°C 27%
31°C 19%
28°C 12%
$22,466 Vol.
$22,466 Vol.
24°C or below
<1%
25°C
<1%
26°C
<1%
27°C
3%
28°C
12%
29°C
27%
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.
Market Opened: 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 favors a highest temperature of 30°C at 36.5% implied probability for São Paulo on March 29, closely followed by 29°C at 26.5%, reflecting the latest forecast model consensus from INMET, CPTEC, and international sources like AccuWeather and BBC Weather projecting daytime highs of 29–30°C amid a dominant subtropical high-pressure ridge promoting subsidence, clear skies, and light easterly winds of 10–16 km/h. Recent observations over the past week show similar warm, mostly sunny conditions with highs around 29°C, such as on March 27, under stable atmospheric patterns and no approaching fronts, though isolated afternoon showers could slightly cap heating. Official station data from Congonhas or Guarulhos airports will resolve the market, with final model updates expected today.
Experimental AI-generated summary referencing Polymarket data · Updated
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