Official meteorological observations for São Paulo on June 15, 2026, recorded a daily maximum of 19°C at the primary urban station, aligning precisely with the market’s 100% implied probability for that outcome. June climatology typically features highs near 21–22°C under transitional winter conditions, yet localized subsidence, clear skies, and modest northeasterly flow kept peak readings one degree cooler than the seasonal norm. Traders converged on this result once preliminary INMET and airport data confirmed the threshold, leaving negligible volume on adjacent brackets. Only a subsequent revision in station selection or quality-control adjustment could reopen the market, though such changes remain rare once initial reports stabilize.
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 June 15?
19°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$123,123 Vol.
$123,123 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C
No
22°C
No
23°C or higher
No
19°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$123,123 Vol.
$123,123 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C
No
22°C
No
23°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 for the Sao Paulo-Guarulhos International Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Jun 13, 2026, 9:03 PM 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 for the Sao Paulo-Guarulhos International Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official meteorological observations for São Paulo on June 15, 2026, recorded a daily maximum of 19°C at the primary urban station, aligning precisely with the market’s 100% implied probability for that outcome. June climatology typically features highs near 21–22°C under transitional winter conditions, yet localized subsidence, clear skies, and modest northeasterly flow kept peak readings one degree cooler than the seasonal norm. Traders converged on this result once preliminary INMET and airport data confirmed the threshold, leaving negligible volume on adjacent brackets. Only a subsequent revision in station selection or quality-control adjustment could reopen the market, though such changes remain rare once initial reports stabilize.
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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