Trader consensus on Polymarket reflects the official observational data from São Paulo–Guarulhos International Airport (SBGR), where automated weather station measurements confirmed a maximum temperature of 27°C on April 15 amid partly cloudy conditions and light winds. This outcome aligns precisely with INMET's pre-event forecast of few clouds and highs near 26–28°C under a dominant subtropical high-pressure ridge, which limited convective heating typical for autumn in southeastern Brazil, where April highs average 24–26°C. Model consensus from numerical weather prediction systems like GFS and ECMWF anticipated no significant warm-air advection. With data finalized, revision risks are negligible barring rare sensor recalibration, though traders monitor INMET quality checks for final validation.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Sao Paulo on April 15?
Highest temperature in Sao Paulo on April 15?
27°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$93,212 Vol.
$93,212 Vol.
22°C or below
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
Yes
28°C
No
29°C
No
30°C
No
31°C
No
32°C or higher
No
27°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$93,212 Vol.
$93,212 Vol.
22°C or below
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
Yes
28°C
No
29°C
No
30°C
No
31°C
No
32°C or higher
No
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: Apr 13, 2026, 12:05 AM ET
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket reflects the official observational data from São Paulo–Guarulhos International Airport (SBGR), where automated weather station measurements confirmed a maximum temperature of 27°C on April 15 amid partly cloudy conditions and light winds. This outcome aligns precisely with INMET's pre-event forecast of few clouds and highs near 26–28°C under a dominant subtropical high-pressure ridge, which limited convective heating typical for autumn in southeastern Brazil, where April highs average 24–26°C. Model consensus from numerical weather prediction systems like GFS and ECMWF anticipated no significant warm-air advection. With data finalized, revision risks are negligible barring rare sensor recalibration, though traders monitor INMET quality checks for final validation.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions