Official forecasts from Brazil’s National Institute of Meteorology (INMET) and supporting international models consistently projected a daily maximum near 23 °C for São Paulo on June 6 under typical early austral winter conditions, including broken cloud cover and light southeasterly flow that limited daytime heating. This aligns with the city’s June climatological average high of approximately 22–23 °C and recent observational trends showing moderation from earlier-month warmth. Post-event station data have now confirmed the peak reached exactly this threshold, producing the market’s overwhelming 100 % implied probability on the 23 °C outcome. Minor model spread or station-to-station differences could theoretically shift the recorded maximum by 1 °C, though current evidence makes such revisions unlikely before final resolution.
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 6?
23°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$45,525 Vol.
$45,525 Vol.
15°C or below
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
Yes
24°C
No
25°C or higher
No
23°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$45,525 Vol.
$45,525 Vol.
15°C or below
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
Yes
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 5, 2026, 12:03 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 forecasts from Brazil’s National Institute of Meteorology (INMET) and supporting international models consistently projected a daily maximum near 23 °C for São Paulo on June 6 under typical early austral winter conditions, including broken cloud cover and light southeasterly flow that limited daytime heating. This aligns with the city’s June climatological average high of approximately 22–23 °C and recent observational trends showing moderation from earlier-month warmth. Post-event station data have now confirmed the peak reached exactly this threshold, producing the market’s overwhelming 100 % implied probability on the 23 °C outcome. Minor model spread or station-to-station differences could theoretically shift the recorded maximum by 1 °C, though current evidence makes such revisions unlikely before final resolution.
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