Forecast models from ECMWF and GFS indicate a daytime maximum of 23–24 °C in São Paulo on August 12, as a high-pressure ridge strengthens behind the recent weak cold front and cloud cover decreases. This setup promotes greater solar insolation and improved boundary-layer mixing compared with the cooler, overcast conditions that limited highs near 18 °C on August 10. Typical August climatology shows averages around 23–25 °C, with small differences among 23 °C and 24 °C outcomes hinging on precise wind speeds, residual moisture, and station-specific readings at official sites. Later model runs or unexpected advection could shift the final maximum by 1–2 °C.
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 August 12?
Highest temperature in Sao Paulo on August 12?
24°C 40%
23°C 35%
25°C 20%
22°C 7%
NEW
NEW
Aug 12, 2026
19°C or below
<1%
20°C
1%
21°C
4%
22°C
7%
23°C
35%
24°C
40%
25°C
20%
26°C
4%
27°C
6%
28°C
4%
29°C or higher
1%
24°C 40%
23°C 35%
25°C 20%
22°C 7%
NEW
NEW
Aug 12, 2026
19°C or below
$21 Vol.
<1%
20°C
$21 Vol.
1%
21°C
$47 Vol.
4%
22°C
$39 Vol.
7%
23°C
$62 Vol.
35%
24°C
$32 Vol.
40%
25°C
$34 Vol.
20%
26°C
$42 Vol.
4%
27°C
$21 Vol.
6%
28°C
$12 Vol.
4%
29°C or higher
$12 Vol.
1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 12 Aug '26.
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.Forecast models from ECMWF and GFS indicate a daytime maximum of 23–24 °C in São Paulo on August 12, as a high-pressure ridge strengthens behind the recent weak cold front and cloud cover decreases. This setup promotes greater solar insolation and improved boundary-layer mixing compared with the cooler, overcast conditions that limited highs near 18 °C on August 10. Typical August climatology shows averages around 23–25 °C, with small differences among 23 °C and 24 °C outcomes hinging on precise wind speeds, residual moisture, and station-specific readings at official sites. Later model runs or unexpected advection could shift the final maximum by 1–2 °C.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 12 Aug '26.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 12 Aug '26.
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: Aug 10, 2026, 9:02 PM ET
Volume
$190End Date
Aug 12, 2026Market Opened
Aug 10, 2026, 9:02 PM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 12 Aug '26.
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.Forecast models from ECMWF and GFS indicate a daytime maximum of 23–24 °C in São Paulo on August 12, as a high-pressure ridge strengthens behind the recent weak cold front and cloud cover decreases. This setup promotes greater solar insolation and improved boundary-layer mixing compared with the cooler, overcast conditions that limited highs near 18 °C on August 10. Typical August climatology shows averages around 23–25 °C, with small differences among 23 °C and 24 °C outcomes hinging on precise wind speeds, residual moisture, and station-specific readings at official sites. Later model runs or unexpected advection could shift the final maximum by 1–2 °C.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 12 Aug '26.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 12 Aug '26.
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.
Volume
$190End Date
Aug 12, 2026Market Opened
Aug 10, 2026, 9:02 PM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Forecast models from ECMWF and GFS indicate a daytime maximum of 23–24 °C in São Paulo on August 12, as a high-pressure ridge strengthens behind the recent weak cold front and cloud cover decreases. This setup promotes greater solar insolation and improved boundary-layer mixing compared with the cooler, overcast conditions that limited highs near 18 °C on August 10. Typical August climatology shows averages around 23–25 °C, with small differences among 23 °C and 24 °C outcomes hinging on precise wind speeds, residual moisture, and station-specific readings at official sites. Later model runs or unexpected advection could shift the final maximum by 1–2 °C.
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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