Recent ECMWF and GFS model guidance points to a daytime maximum of 17–18°C in São Paulo on August 10, reflecting the arrival of a transient cool air mass behind a weak cold front combined with increased cloud cover and light drizzle potential that limits surface heating. Trader sentiment clusters tightly around these outcomes because small differences in forecast cloud optical thickness, boundary-layer mixing depth, and exact frontal passage timing can shift the peak by 1°C, while typical observational uncertainty at official stations adds further variance. August climatology favors highs near 23–25°C under clearer high-pressure regimes, making the current suppressed temperatures stand out and heighten sensitivity to any late model updates or clearer breaks in the stratus.
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 10?
Highest temperature in Sao Paulo on August 10?
18°C 38%
17°C 31%
19°C 21%
16°C 9%
NEW
NEW
Aug 10, 2026
14°C or below
<1%
15°C
<1%
16°C
9%
17°C
31%
18°C
38%
19°C
21%
20°C
4%
21°C
1%
22°C
1%
23°C
<1%
24°C or higher
<1%
18°C 38%
17°C 31%
19°C 21%
16°C 9%
NEW
NEW
Aug 10, 2026
14°C or below
$243 Vol.
<1%
15°C
$426 Vol.
<1%
16°C
$847 Vol.
9%
17°C
$1,173 Vol.
31%
18°C
$454 Vol.
38%
19°C
$1,303 Vol.
21%
20°C
$498 Vol.
4%
21°C
$743 Vol.
1%
22°C
$224 Vol.
1%
23°C
$246 Vol.
<1%
24°C or higher
$300 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 10 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.Recent ECMWF and GFS model guidance points to a daytime maximum of 17–18°C in São Paulo on August 10, reflecting the arrival of a transient cool air mass behind a weak cold front combined with increased cloud cover and light drizzle potential that limits surface heating. Trader sentiment clusters tightly around these outcomes because small differences in forecast cloud optical thickness, boundary-layer mixing depth, and exact frontal passage timing can shift the peak by 1°C, while typical observational uncertainty at official stations adds further variance. August climatology favors highs near 23–25°C under clearer high-pressure regimes, making the current suppressed temperatures stand out and heighten sensitivity to any late model updates or clearer breaks in the stratus.
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 10 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 10 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 8, 2026, 9:03 PM ET
Volume
$6,459End Date
Aug 10, 2026Market Opened
Aug 8, 2026, 9:03 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 10 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.Recent ECMWF and GFS model guidance points to a daytime maximum of 17–18°C in São Paulo on August 10, reflecting the arrival of a transient cool air mass behind a weak cold front combined with increased cloud cover and light drizzle potential that limits surface heating. Trader sentiment clusters tightly around these outcomes because small differences in forecast cloud optical thickness, boundary-layer mixing depth, and exact frontal passage timing can shift the peak by 1°C, while typical observational uncertainty at official stations adds further variance. August climatology favors highs near 23–25°C under clearer high-pressure regimes, making the current suppressed temperatures stand out and heighten sensitivity to any late model updates or clearer breaks in the stratus.
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 10 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 10 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
$6,459End Date
Aug 10, 2026Market Opened
Aug 8, 2026, 9:03 PM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Recent ECMWF and GFS model guidance points to a daytime maximum of 17–18°C in São Paulo on August 10, reflecting the arrival of a transient cool air mass behind a weak cold front combined with increased cloud cover and light drizzle potential that limits surface heating. Trader sentiment clusters tightly around these outcomes because small differences in forecast cloud optical thickness, boundary-layer mixing depth, and exact frontal passage timing can shift the peak by 1°C, while typical observational uncertainty at official stations adds further variance. August climatology favors highs near 23–25°C under clearer high-pressure regimes, making the current suppressed temperatures stand out and heighten sensitivity to any late model updates or clearer breaks in the stratus.
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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