Stable high-pressure systems and clear skies across southeastern Brazil produced mostly sunny conditions with light winds on August 17, allowing surface temperatures in São Paulo to reach a verified maximum of 29°C according to official INMET observations. This outcome sits modestly above the long-term August climatological average of 23–25°C, consistent with ensemble model guidance that showed afternoon peaks of 28–30°C under minimal cloud cover and negligible precipitation. The market’s near-certain consensus on 29°C reflects post-event confirmation from authoritative meteorological data, leaving little room for revision. Only an unexpected measurement correction or station-specific anomaly could shift 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 August 17?
Highest temperature in Sao Paulo on August 17?
29°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$52,611 Vol.
$52,611 Vol.
Aug 17, 2026
22°C or below
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
No
29°C
Yes
30°C
No
31°C
No
32°C or higher
No
29°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$52,611 Vol.
$52,611 Vol.
Aug 17, 2026
22°C or below
$4,951 Vol.
No
23°C
$2,973 Vol.
No
24°C
$7,571 Vol.
No
25°C
$8,074 Vol.
No
26°C
$3,790 Vol.
No
27°C
$3,689 Vol.
No
28°C
$3,785 Vol.
No
29°C
$6,017 Vol.
Yes
30°C
$4,234 Vol.
No
31°C
$5,139 Vol.
No
32°C or higher
$2,388 Vol.
No
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 17 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.Stable high-pressure systems and clear skies across southeastern Brazil produced mostly sunny conditions with light winds on August 17, allowing surface temperatures in São Paulo to reach a verified maximum of 29°C according to official INMET observations. This outcome sits modestly above the long-term August climatological average of 23–25°C, consistent with ensemble model guidance that showed afternoon peaks of 28–30°C under minimal cloud cover and negligible precipitation. The market’s near-certain consensus on 29°C reflects post-event confirmation from authoritative meteorological data, leaving little room for revision. Only an unexpected measurement correction or station-specific anomaly could shift resolution.
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 17 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 17 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 15, 2026, 9:55 PM ET
Volume
$52,611End Date
Aug 17, 2026Market Opened
Aug 15, 2026, 9:55 PM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 17 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.Stable high-pressure systems and clear skies across southeastern Brazil produced mostly sunny conditions with light winds on August 17, allowing surface temperatures in São Paulo to reach a verified maximum of 29°C according to official INMET observations. This outcome sits modestly above the long-term August climatological average of 23–25°C, consistent with ensemble model guidance that showed afternoon peaks of 28–30°C under minimal cloud cover and negligible precipitation. The market’s near-certain consensus on 29°C reflects post-event confirmation from authoritative meteorological data, leaving little room for revision. Only an unexpected measurement correction or station-specific anomaly could shift resolution.
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 17 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 17 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
$52,611End Date
Aug 17, 2026Market Opened
Aug 15, 2026, 9:55 PM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Stable high-pressure systems and clear skies across southeastern Brazil produced mostly sunny conditions with light winds on August 17, allowing surface temperatures in São Paulo to reach a verified maximum of 29°C according to official INMET observations. This outcome sits modestly above the long-term August climatological average of 23–25°C, consistent with ensemble model guidance that showed afternoon peaks of 28–30°C under minimal cloud cover and negligible precipitation. The market’s near-certain consensus on 29°C reflects post-event confirmation from authoritative meteorological data, leaving little room for revision. Only an unexpected measurement correction or station-specific anomaly could shift resolution.
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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