Trader consensus in the Sao Paulo July 23 highest-temperature market clusters around 21–22°C because numerical weather models and climatological baselines for the Southern Hemisphere winter consistently project daytime maxima near these values under stable high-pressure conditions typical of the dry season. Subtle differences between outcomes hinge on forecast details such as the timing and strength of any passing cold fronts, boundary-layer moisture, and urban heat-island effects measured at official INMET stations, which can shift the daily peak by 1–2°C. With probabilities spread across a narrow band, traders are weighting the modest uncertainty range inherent in short-range model runs against historical July averages of roughly 21–23°C and the absence of strong warming signals in current guidance.
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 July 23?
21°C 36%
22°C 23%
20°C 18%
23°C 14%
$11,668 Vol.
$11,668 Vol.
17°C or below
1%
18°C
2%
19°C
4%
20°C
18%
21°C
36%
22°C
23%
23°C
14%
24°C
6%
25°C
1%
26°C
<1%
27°C or higher
<1%
21°C 36%
22°C 23%
20°C 18%
23°C 14%
$11,668 Vol.
$11,668 Vol.
17°C or below
1%
18°C
2%
19°C
4%
20°C
18%
21°C
36%
22°C
23%
23°C
14%
24°C
6%
25°C
1%
26°C
<1%
27°C or higher
<1%
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: Jul 21, 2026, 9:01 PM ET
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...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...Trader consensus in the Sao Paulo July 23 highest-temperature market clusters around 21–22°C because numerical weather models and climatological baselines for the Southern Hemisphere winter consistently project daytime maxima near these values under stable high-pressure conditions typical of the dry season. Subtle differences between outcomes hinge on forecast details such as the timing and strength of any passing cold fronts, boundary-layer moisture, and urban heat-island effects measured at official INMET stations, which can shift the daily peak by 1–2°C. With probabilities spread across a narrow band, traders are weighting the modest uncertainty range inherent in short-range model runs against historical July averages of roughly 21–23°C and the absence of strong warming signals in current guidance.
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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