Current forecasts from meteorological agencies indicate a minimum temperature near 12–14°C for São Paulo on August 21, driven by typical Southern Hemisphere winter radiative cooling under partly cloudy skies with late showers possible. These conditions limit overnight heat loss compared to clear nights while Atlantic moisture and urban heat island effects from the metropolis moderate extremes. Model consensus aligns with historical August lows of 13–15°C, yet slight variations in cloud timing or wind patterns can shift the recorded minimum by 1–2°C at official stations. Trader odds cluster tightly around these values because new observational data from INMET will resolve the market soon, reflecting uncertainty in precise nocturnal cooling rates amid variable synoptic influences.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Sao Paulo on August 21?
Lowest temperature in Sao Paulo on August 21?
13°C 35%
12°C 34%
14°C 34%
10°C 34%
$597 Vol.
$597 Vol.
Aug 21, 2026
9°C or below
2%
10°C
34%
11°C
34%
12°C
34%
13°C
35%
14°C
34%
15°C
34%
16°C
34%
17°C
1%
18°C
1%
19°C or higher
<1%
13°C 35%
12°C 34%
14°C 34%
10°C 34%
$597 Vol.
$597 Vol.
Aug 21, 2026
9°C or below
$153 Vol.
2%
10°C
$0 Vol.
34%
11°C
$0 Vol.
34%
12°C
$28 Vol.
34%
13°C
$42 Vol.
35%
14°C
$0 Vol.
34%
15°C
$0 Vol.
34%
16°C
$0 Vol.
34%
17°C
$161 Vol.
1%
18°C
$34 Vol.
1%
19°C or higher
$180 Vol.
<1%
This market will resolve based on the lowest 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 lowest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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.Current forecasts from meteorological agencies indicate a minimum temperature near 12–14°C for São Paulo on August 21, driven by typical Southern Hemisphere winter radiative cooling under partly cloudy skies with late showers possible. These conditions limit overnight heat loss compared to clear nights while Atlantic moisture and urban heat island effects from the metropolis moderate extremes. Model consensus aligns with historical August lows of 13–15°C, yet slight variations in cloud timing or wind patterns can shift the recorded minimum by 1–2°C at official stations. Trader odds cluster tightly around these values because new observational data from INMET will resolve the market soon, reflecting uncertainty in precise nocturnal cooling rates amid variable synoptic influences.
This market will resolve based on the lowest 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 lowest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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 lowest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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 20, 2026, 1:28 PM ET
Volume
$597End Date
Aug 21, 2026Market Opened
Aug 20, 2026, 1:28 PM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...This market will resolve based on the lowest 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 lowest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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.Current forecasts from meteorological agencies indicate a minimum temperature near 12–14°C for São Paulo on August 21, driven by typical Southern Hemisphere winter radiative cooling under partly cloudy skies with late showers possible. These conditions limit overnight heat loss compared to clear nights while Atlantic moisture and urban heat island effects from the metropolis moderate extremes. Model consensus aligns with historical August lows of 13–15°C, yet slight variations in cloud timing or wind patterns can shift the recorded minimum by 1–2°C at official stations. Trader odds cluster tightly around these values because new observational data from INMET will resolve the market soon, reflecting uncertainty in precise nocturnal cooling rates amid variable synoptic influences.
This market will resolve based on the lowest 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 lowest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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 lowest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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
$597End Date
Aug 21, 2026Market Opened
Aug 20, 2026, 1:28 PM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Current forecasts from meteorological agencies indicate a minimum temperature near 12–14°C for São Paulo on August 21, driven by typical Southern Hemisphere winter radiative cooling under partly cloudy skies with late showers possible. These conditions limit overnight heat loss compared to clear nights while Atlantic moisture and urban heat island effects from the metropolis moderate extremes. Model consensus aligns with historical August lows of 13–15°C, yet slight variations in cloud timing or wind patterns can shift the recorded minimum by 1–2°C at official stations. Trader odds cluster tightly around these values because new observational data from INMET will resolve the market soon, reflecting uncertainty in precise nocturnal cooling rates amid variable synoptic influences.
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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