Forecast models for São Paulo on August 28 show daytime highs clustering between 29–32 °C amid late-winter warming, with clear skies, light northwesterly winds, and dry conditions promoting strong solar heating. Recent observations indicate temperatures running 1–2 °C above the 1991–2020 August climatology, driven by a transient ridge of high pressure that limits cloud cover and enhances boundary-layer mixing. The even market-implied probabilities around 29–32 °C reflect small but consequential differences in peak insolation, dew-point suppression, and afternoon wind speeds across ensemble members; warmer outcomes hinge on minimal cloud interference and efficient surface heating, while cooler results would require slightly stronger mixing or residual moisture. Final National Institute of Meteorology updates and morning soundings will narrow resolution thresholds ahead of the daily maximum.
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 28?
Highest temperature in Sao Paulo on August 28?
32°C 40%
31°C 30%
33°C 22%
30°C 14%
NEW
NEW
Aug 28, 2026
24°C or below
1%
25°C
1%
26°C
2%
27°C
3%
28°C
2%
29°C
12%
30°C
14%
31°C
30%
32°C
41%
33°C
22%
34°C or higher
5%
32°C 40%
31°C 30%
33°C 22%
30°C 14%
NEW
NEW
Aug 28, 2026
24°C or below
$0 Vol.
1%
25°C
$0 Vol.
1%
26°C
$0 Vol.
2%
27°C
$0 Vol.
3%
28°C
$0 Vol.
2%
29°C
$0 Vol.
12%
30°C
$27 Vol.
14%
31°C
$11 Vol.
30%
32°C
$11 Vol.
41%
33°C
$16 Vol.
22%
34°C or higher
$11 Vol.
5%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 28 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 for São Paulo on August 28 show daytime highs clustering between 29–32 °C amid late-winter warming, with clear skies, light northwesterly winds, and dry conditions promoting strong solar heating. Recent observations indicate temperatures running 1–2 °C above the 1991–2020 August climatology, driven by a transient ridge of high pressure that limits cloud cover and enhances boundary-layer mixing. The even market-implied probabilities around 29–32 °C reflect small but consequential differences in peak insolation, dew-point suppression, and afternoon wind speeds across ensemble members; warmer outcomes hinge on minimal cloud interference and efficient surface heating, while cooler results would require slightly stronger mixing or residual moisture. Final National Institute of Meteorology updates and morning soundings will narrow resolution thresholds ahead of the daily maximum.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 28 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 26, 2026, 8:55 PM ET
Volume
$35End Date
Aug 28, 2026Market Opened
Aug 26, 2026, 8:55 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 28 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 for São Paulo on August 28 show daytime highs clustering between 29–32 °C amid late-winter warming, with clear skies, light northwesterly winds, and dry conditions promoting strong solar heating. Recent observations indicate temperatures running 1–2 °C above the 1991–2020 August climatology, driven by a transient ridge of high pressure that limits cloud cover and enhances boundary-layer mixing. The even market-implied probabilities around 29–32 °C reflect small but consequential differences in peak insolation, dew-point suppression, and afternoon wind speeds across ensemble members; warmer outcomes hinge on minimal cloud interference and efficient surface heating, while cooler results would require slightly stronger mixing or residual moisture. Final National Institute of Meteorology updates and morning soundings will narrow resolution thresholds ahead of the daily maximum.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 28 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=sbgr
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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
$35End Date
Aug 28, 2026Market Opened
Aug 26, 2026, 8:55 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Forecast models for São Paulo on August 28 show daytime highs clustering between 29–32 °C amid late-winter warming, with clear skies, light northwesterly winds, and dry conditions promoting strong solar heating. Recent observations indicate temperatures running 1–2 °C above the 1991–2020 August climatology, driven by a transient ridge of high pressure that limits cloud cover and enhances boundary-layer mixing. The even market-implied probabilities around 29–32 °C reflect small but consequential differences in peak insolation, dew-point suppression, and afternoon wind speeds across ensemble members; warmer outcomes hinge on minimal cloud interference and efficient surface heating, while cooler results would require slightly stronger mixing or residual moisture. Final National Institute of Meteorology updates and morning soundings will narrow resolution thresholds ahead of the daily maximum.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions