Recent forecasts from models including those referenced by timeanddate, BBC Weather, and World Weather Online indicate a high near 25–26°C for São Paulo on July 18 under predominantly sunny, dry winter conditions with light northerly winds. This aligns with the market's heaviest positioning on those two outcomes. July climatology typically features daily maxima around 22–24°C, but the current setup—clear skies and minimal cloud cover—supports modest warming above average. Official resolution relies on the highest reading at the designated station, likely Guarulhos, where short-term model consensus and recent trends favor the 25°C or 26°C brackets over cooler or significantly warmer possibilities.
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 18?
24°C 100.0%
19°C or below <1%
20°C <1%
21°C <1%
$29,328 Vol.
$29,328 Vol.
19°C or below
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
Yes
25°C
No
26°C
No
27°C
No
28°C
No
29°C or higher
No
24°C 100.0%
19°C or below <1%
20°C <1%
21°C <1%
$29,328 Vol.
$29,328 Vol.
19°C or below
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
Yes
25°C
No
26°C
No
27°C
No
28°C
No
29°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: Jul 16, 2026, 9:02 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
Recent forecasts from models including those referenced by timeanddate, BBC Weather, and World Weather Online indicate a high near 25–26°C for São Paulo on July 18 under predominantly sunny, dry winter conditions with light northerly winds. This aligns with the market's heaviest positioning on those two outcomes. July climatology typically features daily maxima around 22–24°C, but the current setup—clear skies and minimal cloud cover—supports modest warming above average. Official resolution relies on the highest reading at the designated station, likely Guarulhos, where short-term model consensus and recent trends favor the 25°C or 26°C brackets over cooler or significantly warmer possibilities.
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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