Official meteorological stations in São Paulo recorded a daily maximum temperature of 21°C on June 3, 2026, producing the market’s 100% implied probability for that outcome. This aligns with typical early-winter conditions in the region, where June highs average near 22°C under the influence of cooler subtropical air masses and frequent cloud cover that limits daytime heating. No major warm advection or clear-sky episodes occurred to push readings higher, and forecast models from regional agencies converged on this range days in advance. The sole realistic challenge to the recorded value would be an unforeseen post-event revision in station data or quality-control adjustments by the national meteorological service, though such changes are rare once preliminary observations are validated.
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 3?
21°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$33,955 Vol.
$33,955 Vol.
15°C or below
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C or higher
No
21°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$33,955 Vol.
$33,955 Vol.
15°C or below
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°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 1, 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 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 stations in São Paulo recorded a daily maximum temperature of 21°C on June 3, 2026, producing the market’s 100% implied probability for that outcome. This aligns with typical early-winter conditions in the region, where June highs average near 22°C under the influence of cooler subtropical air masses and frequent cloud cover that limits daytime heating. No major warm advection or clear-sky episodes occurred to push readings higher, and forecast models from regional agencies converged on this range days in advance. The sole realistic challenge to the recorded value would be an unforeseen post-event revision in station data or quality-control adjustments by the national meteorological service, though such changes are rare once preliminary observations are validated.
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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