A cold front advancing northward across southeastern Brazil has shifted winds to the south and introduced cooler polar air, sharply lowering temperatures after several days above 30°C. Official forecasts from sources including the Met Office and regional models indicate overnight lows for September 6 centered near 9–11°C amid persistent cloud cover, light rain, and moderate southeasterly flow that limits radiative cooling. Trader odds cluster tightly around 10–11°C because model runs differ modestly on the exact timing of peak cooling and boundary-layer moisture; warmer outcomes near 16°C would require faster frontal passage or stronger mixing, while sub-9°C readings remain unlikely absent clearer skies or stronger advection. Updated model guidance and surface observations through the night will refine these probabilities before resolution.
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 September 6?
Lowest temperature in Sao Paulo on September 6?
14°C 49%
13°C 39%
11°C 36%
16°C or higher 32%
NEW
NEW
Sep 6, 2026
6°C or below
1%
7°C
7%
8°C
11%
9°C
20%
10°C
27%
11°C
36%
12°C
29%
13°C
39%
14°C
49%
15°C
7%
16°C or higher
32%
14°C 49%
13°C 39%
11°C 36%
16°C or higher 32%
NEW
NEW
Sep 6, 2026
6°C or below
$10 Vol.
1%
7°C
$0 Vol.
7%
8°C
$0 Vol.
11%
9°C
$0 Vol.
20%
10°C
$0 Vol.
27%
11°C
$0 Vol.
36%
12°C
$0 Vol.
29%
13°C
$0 Vol.
39%
14°C
$0 Vol.
49%
15°C
$0 Vol.
7%
16°C or higher
$0 Vol.
32%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 6 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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.A cold front advancing northward across southeastern Brazil has shifted winds to the south and introduced cooler polar air, sharply lowering temperatures after several days above 30°C. Official forecasts from sources including the Met Office and regional models indicate overnight lows for September 6 centered near 9–11°C amid persistent cloud cover, light rain, and moderate southeasterly flow that limits radiative cooling. Trader odds cluster tightly around 10–11°C because model runs differ modestly on the exact timing of peak cooling and boundary-layer moisture; warmer outcomes near 16°C would require faster frontal passage or stronger mixing, while sub-9°C readings remain unlikely absent clearer skies or stronger advection. Updated model guidance and surface observations through the night will refine these probabilities before resolution.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 6 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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 lowest 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 4, 2026, 8:29 AM ET
Volume
$10End Date
Sep 6, 2026Market Opened
Sep 4, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 6 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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.A cold front advancing northward across southeastern Brazil has shifted winds to the south and introduced cooler polar air, sharply lowering temperatures after several days above 30°C. Official forecasts from sources including the Met Office and regional models indicate overnight lows for September 6 centered near 9–11°C amid persistent cloud cover, light rain, and moderate southeasterly flow that limits radiative cooling. Trader odds cluster tightly around 10–11°C because model runs differ modestly on the exact timing of peak cooling and boundary-layer moisture; warmer outcomes near 16°C would require faster frontal passage or stronger mixing, while sub-9°C readings remain unlikely absent clearer skies or stronger advection. Updated model guidance and surface observations through the night will refine these probabilities before resolution.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 6 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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 lowest 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
$10End Date
Sep 6, 2026Market Opened
Sep 4, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...A cold front advancing northward across southeastern Brazil has shifted winds to the south and introduced cooler polar air, sharply lowering temperatures after several days above 30°C. Official forecasts from sources including the Met Office and regional models indicate overnight lows for September 6 centered near 9–11°C amid persistent cloud cover, light rain, and moderate southeasterly flow that limits radiative cooling. Trader odds cluster tightly around 10–11°C because model runs differ modestly on the exact timing of peak cooling and boundary-layer moisture; warmer outcomes near 16°C would require faster frontal passage or stronger mixing, while sub-9°C readings remain unlikely absent clearer skies or stronger advection. Updated model guidance and surface observations through the night will refine these probabilities before 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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