**Official observations from Brazil's National Institute of Meteorology (INMET) and Sao Paulo-Guarulhos International Airport (SBGR) station confirm the highest temperature reached 28°C on May 9, 2026, under mostly cloudy conditions with light northerly winds ahead of an incoming cold front.** This aligns precisely with pre-event INMET forecasts projecting a 28°C maximum, driven by transient autumn ridge warming that temporarily boosted temperatures above May's climatological average of 22–23°C. Trader consensus at 100% implied probability for 28°C reflects this verified observational data from authoritative stations, representing skin-in-the-game agreement on the measured peak. Scenarios challenging this would require rare post hoc data revisions from SBGR or INMET, such as sensor recalibrations, though model-observation consistency makes shifts improbable as final reports finalize.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · AktualisiertHighest temperature in Sao Paulo on May 9?
28°C 100.0%
24°C or below <1%
25°C <1%
26°C <1%
$60,724 Vol.
$60,724 Vol.
24°C or below
No
25°C
No
26°C
No
27°C
No
28°C
Yes
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C or higher
No
28°C 100.0%
24°C or below <1%
25°C <1%
26°C <1%
$60,724 Vol.
$60,724 Vol.
24°C or below
No
25°C
No
26°C
No
27°C
No
28°C
Yes
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°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.
Markt eröffnet: May 7, 2026, 12:06 AM ET
Abwicklungsquelle
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Vorgeschlagenes Ergebnis: No
Kein Einspruch
Endgültiges Ergebnis: 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.
Abwicklungsquelle
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Vorgeschlagenes Ergebnis: No
Kein Einspruch
Endgültiges Ergebnis: No
**Official observations from Brazil's National Institute of Meteorology (INMET) and Sao Paulo-Guarulhos International Airport (SBGR) station confirm the highest temperature reached 28°C on May 9, 2026, under mostly cloudy conditions with light northerly winds ahead of an incoming cold front.** This aligns precisely with pre-event INMET forecasts projecting a 28°C maximum, driven by transient autumn ridge warming that temporarily boosted temperatures above May's climatological average of 22–23°C. Trader consensus at 100% implied probability for 28°C reflects this verified observational data from authoritative stations, representing skin-in-the-game agreement on the measured peak. Scenarios challenging this would require rare post hoc data revisions from SBGR or INMET, such as sensor recalibrations, though model-observation consistency makes shifts improbable as final reports finalize.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · Aktualisiert

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