Recent cooler air advection following a frontal passage has suppressed daytime heating in São Paulo, with current model consensus from sources like the Met Office and YR.NO projecting an afternoon maximum near 20–22°C under mostly cloudy skies and light southeasterly flow. This places the market's leading outcomes (21°C at 31.5%, 22°C at 22.5%, 20°C at 21.5%) in tight competition, as small differences in cloud timing, boundary-layer mixing, or slight model spread in the diurnal temperature range can shift the daily peak by 1–2°C. Historical September baselines near 23–24°C underscore the anomaly, while official INMET station readings will resolve the market once the peak is confirmed.
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 September 8?
Highest temperature in Sao Paulo on September 8?
21°C 32%
20°C 23%
22°C 22%
19°C 11%
NEW
NEW
Sep 8, 2026
15°C or below
4%
16°C
6%
17°C
3%
18°C
5%
19°C
11%
20°C
23%
21°C
32%
22°C
22%
23°C
5%
24°C
2%
25°C or higher
1%
21°C 32%
20°C 23%
22°C 22%
19°C 11%
NEW
NEW
Sep 8, 2026
15°C or below
$0 Vol.
4%
16°C
$117 Vol.
6%
17°C
$56 Vol.
3%
18°C
$32 Vol.
5%
19°C
$195 Vol.
11%
20°C
$112 Vol.
23%
21°C
$5 Vol.
32%
22°C
$213 Vol.
22%
23°C
$19 Vol.
5%
24°C
$57 Vol.
2%
25°C or higher
$76 Vol.
1%
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 8 Sep '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 for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 cooler air advection following a frontal passage has suppressed daytime heating in São Paulo, with current model consensus from sources like the Met Office and YR.NO projecting an afternoon maximum near 20–22°C under mostly cloudy skies and light southeasterly flow. This places the market's leading outcomes (21°C at 31.5%, 22°C at 22.5%, 20°C at 21.5%) in tight competition, as small differences in cloud timing, boundary-layer mixing, or slight model spread in the diurnal temperature range can shift the daily peak by 1–2°C. Historical September baselines near 23–24°C underscore the anomaly, while official INMET station readings will resolve the market once the peak is confirmed.
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 8 Sep '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 for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 6, 2026, 8:55 AM ET
Volume
$881End Date
Sep 8, 2026Market Opened
Sep 6, 2026, 8:55 AM 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 8 Sep '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 for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 cooler air advection following a frontal passage has suppressed daytime heating in São Paulo, with current model consensus from sources like the Met Office and YR.NO projecting an afternoon maximum near 20–22°C under mostly cloudy skies and light southeasterly flow. This places the market's leading outcomes (21°C at 31.5%, 22°C at 22.5%, 20°C at 21.5%) in tight competition, as small differences in cloud timing, boundary-layer mixing, or slight model spread in the diurnal temperature range can shift the daily peak by 1–2°C. Historical September baselines near 23–24°C underscore the anomaly, while official INMET station readings will resolve the market once the peak is confirmed.
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 8 Sep '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 for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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
$881End Date
Sep 8, 2026Market Opened
Sep 6, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Recent cooler air advection following a frontal passage has suppressed daytime heating in São Paulo, with current model consensus from sources like the Met Office and YR.NO projecting an afternoon maximum near 20–22°C under mostly cloudy skies and light southeasterly flow. This places the market's leading outcomes (21°C at 31.5%, 22°C at 22.5%, 20°C at 21.5%) in tight competition, as small differences in cloud timing, boundary-layer mixing, or slight model spread in the diurnal temperature range can shift the daily peak by 1–2°C. Historical September baselines near 23–24°C underscore the anomaly, while official INMET station readings will resolve the market once the peak is confirmed.
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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