Recent forecasts for São Paulo on September 13 show a cold front advancing from the south, with models indicating minimum temperatures clustered around 15–17°C amid widespread cloud cover, light rain, and southeasterly winds that limit daytime heating and promote nocturnal cooling. Official guidance from agencies like the Met Office and local meteorological services highlights this transitional pattern, consistent with early-spring climatology where rapid temperature swings occur. Trader sentiment reflects genuine model divergence—some runs project stronger cooling toward 11–12°C while others hold near 16–18°C—creating tightly bunched implied probabilities across the 10–20°C range. New observational data and updated model runs over the next 48 hours will likely sharpen resolution criteria for the daily minimum.
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 13?
Lowest temperature in Sao Paulo on September 13?
10°C or below 94%
20°C or higher 61%
11°C 39%
12°C 39%
NEW
NEW
Sep 13, 2026
10°C or below
94%
11°C
39%
12°C
39%
13°C
39%
14°C
28%
15°C
30%
16°C
25%
17°C
39%
18°C
39%
19°C
39%
20°C or higher
61%
10°C or below 94%
20°C or higher 61%
11°C 39%
12°C 39%
NEW
NEW
Sep 13, 2026
10°C or below
$0 Vol.
94%
11°C
$0 Vol.
39%
12°C
$0 Vol.
39%
13°C
$0 Vol.
39%
14°C
$0 Vol.
28%
15°C
$0 Vol.
30%
16°C
$0 Vol.
25%
17°C
$0 Vol.
39%
18°C
$0 Vol.
39%
19°C
$0 Vol.
39%
20°C or higher
$0 Vol.
61%
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 13 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.Recent forecasts for São Paulo on September 13 show a cold front advancing from the south, with models indicating minimum temperatures clustered around 15–17°C amid widespread cloud cover, light rain, and southeasterly winds that limit daytime heating and promote nocturnal cooling. Official guidance from agencies like the Met Office and local meteorological services highlights this transitional pattern, consistent with early-spring climatology where rapid temperature swings occur. Trader sentiment reflects genuine model divergence—some runs project stronger cooling toward 11–12°C while others hold near 16–18°C—creating tightly bunched implied probabilities across the 10–20°C range. New observational data and updated model runs over the next 48 hours will likely sharpen resolution criteria for the daily minimum.
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 13 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 11, 2026, 8:29 AM ET
Volume
$0End Date
Sep 13, 2026Market Opened
Sep 11, 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 13 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.Recent forecasts for São Paulo on September 13 show a cold front advancing from the south, with models indicating minimum temperatures clustered around 15–17°C amid widespread cloud cover, light rain, and southeasterly winds that limit daytime heating and promote nocturnal cooling. Official guidance from agencies like the Met Office and local meteorological services highlights this transitional pattern, consistent with early-spring climatology where rapid temperature swings occur. Trader sentiment reflects genuine model divergence—some runs project stronger cooling toward 11–12°C while others hold near 16–18°C—creating tightly bunched implied probabilities across the 10–20°C range. New observational data and updated model runs over the next 48 hours will likely sharpen resolution criteria for the daily minimum.
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 13 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
$0End Date
Sep 13, 2026Market Opened
Sep 11, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Recent forecasts for São Paulo on September 13 show a cold front advancing from the south, with models indicating minimum temperatures clustered around 15–17°C amid widespread cloud cover, light rain, and southeasterly winds that limit daytime heating and promote nocturnal cooling. Official guidance from agencies like the Met Office and local meteorological services highlights this transitional pattern, consistent with early-spring climatology where rapid temperature swings occur. Trader sentiment reflects genuine model divergence—some runs project stronger cooling toward 11–12°C while others hold near 16–18°C—creating tightly bunched implied probabilities across the 10–20°C range. New observational data and updated model runs over the next 48 hours will likely sharpen resolution criteria for the daily minimum.
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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