Trader consensus on Polymarket tilts narrowly toward 28°C (35.5%) over 29°C (32.0%) for São Paulo's highest temperature on March 23, propelled by the latest INMET/CPTEC forecasts clustering peaks at 28-29°C under persistent southerly winds and partial cloud cover suppressing extreme heat. Ensemble models from ECMWF and GFS exhibit a slim spread around 28.5°C mean, differentiated by uncertainties in afternoon convection and urban heat island amplification, which could nudge outcomes higher. Historical March maxima average 27-29°C, with subdued humidity and wind shear capping 30°C+ odds at 16%, while cooler scenarios remain marginal absent stronger cold fronts. Hourly observations from official stations will sharpen resolution.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten · AktualisiertHighest temperature in Sao Paulo on March 23?
Highest temperature in Sao Paulo on March 23?
28°C 36%
29°C 32%
30°C 16%
27°C 6.6%
22°C or below
1%
23°C
1%
24°C
1%
25°C
2%
26°C
3%
27°C
7%
28°C
36%
29°C
32%
30°C
16%
31°C
4%
32°C or higher
2%
28°C 36%
29°C 32%
30°C 16%
27°C 6.6%
22°C or below
1%
23°C
1%
24°C
1%
25°C
2%
26°C
3%
27°C
7%
28°C
36%
29°C
32%
30°C
16%
31°C
4%
32°C or higher
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.
Markt eröffnet: Mar 19, 2026, 6:02 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 tilts narrowly toward 28°C (35.5%) over 29°C (32.0%) for São Paulo's highest temperature on March 23, propelled by the latest INMET/CPTEC forecasts clustering peaks at 28-29°C under persistent southerly winds and partial cloud cover suppressing extreme heat. Ensemble models from ECMWF and GFS exhibit a slim spread around 28.5°C mean, differentiated by uncertainties in afternoon convection and urban heat island amplification, which could nudge outcomes higher. Historical March maxima average 27-29°C, with subdued humidity and wind shear capping 30°C+ odds at 16%, while cooler scenarios remain marginal absent stronger cold fronts. Hourly observations from official stations will sharpen resolution.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten · Aktualisiert
Vorsicht bei externen Links.
Vorsicht bei externen Links.
Häufig gestellte Fragen