Official observational data from the São Paulo-Guarulhos International Airport weather station (SBGR)—the market's designated resolution source via Wunderground—recorded a maximum temperature of 27°C on May 4, 2026, driving trader consensus to 100% on this outcome with real capital at stake. This measurement, taken to the nearest whole degree Celsius, overrides pre-event INMET forecasts of cloudy conditions and isolated rain capping highs near 23°C amid autumnal cooling patterns typical for the region, where May averages hover around 23–24°C based on historical climatology. Scenarios challenging this near-certainty include rare post-finalization data revisions from the station, though none are anticipated as observations are finalized daily by 15h Brasília time.
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 May 4?
Highest temperature in Sao Paulo on May 4?
27°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$164,267 Vol.
$164,267 Vol.
May 4, 2026
20°C or below
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
Yes
28°C
No
29°C
No
30°C or higher
No
27°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$164,267 Vol.
$164,267 Vol.
May 4, 2026
20°C or below
$8,421 Vol.
No
21°C
$43,907 Vol.
No
22°C
$11,183 Vol.
No
23°C
$10,774 Vol.
No
24°C
$7,629 Vol.
No
25°C
$9,485 Vol.
No
26°C
$33,342 Vol.
No
27°C
$11,180 Vol.
Yes
28°C
$16,250 Vol.
No
29°C
$7,755 Vol.
No
30°C or higher
$4,343 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 4 May '26.
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.Official observational data from the São Paulo-Guarulhos International Airport weather station (SBGR)—the market's designated resolution source via Wunderground—recorded a maximum temperature of 27°C on May 4, 2026, driving trader consensus to 100% on this outcome with real capital at stake. This measurement, taken to the nearest whole degree Celsius, overrides pre-event INMET forecasts of cloudy conditions and isolated rain capping highs near 23°C amid autumnal cooling patterns typical for the region, where May averages hover around 23–24°C based on historical climatology. Scenarios challenging this near-certainty include rare post-finalization data revisions from the station, though none are anticipated as observations are finalized daily by 15h Brasília time.
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 4 May '26.
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.
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: May 2, 2026, 12:09 AM ET
Volume
$164,267End Date
May 4, 2026Market Opened
May 2, 2026, 12:09 AM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 4 May '26.
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.Official observational data from the São Paulo-Guarulhos International Airport weather station (SBGR)—the market's designated resolution source via Wunderground—recorded a maximum temperature of 27°C on May 4, 2026, driving trader consensus to 100% on this outcome with real capital at stake. This measurement, taken to the nearest whole degree Celsius, overrides pre-event INMET forecasts of cloudy conditions and isolated rain capping highs near 23°C amid autumnal cooling patterns typical for the region, where May averages hover around 23–24°C based on historical climatology. Scenarios challenging this near-certainty include rare post-finalization data revisions from the station, though none are anticipated as observations are finalized daily by 15h Brasília time.
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 4 May '26.
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.
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.
Volume
$164,267End Date
May 4, 2026Market Opened
May 2, 2026, 12:09 AM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observational data from the São Paulo-Guarulhos International Airport weather station (SBGR)—the market's designated resolution source via Wunderground—recorded a maximum temperature of 27°C on May 4, 2026, driving trader consensus to 100% on this outcome with real capital at stake. This measurement, taken to the nearest whole degree Celsius, overrides pre-event INMET forecasts of cloudy conditions and isolated rain capping highs near 23°C amid autumnal cooling patterns typical for the region, where May averages hover around 23–24°C based on historical climatology. Scenarios challenging this near-certainty include rare post-finalization data revisions from the station, though none are anticipated as observations are finalized daily by 15h Brasília time.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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