Recent forecast models for São Paulo on September 3, 2026, indicate overnight lows clustering near 11–13°C amid clear to partly cloudy skies that enhance radiative cooling after sunset. Light easterly winds and moderate humidity limit mixing of warmer air aloft, while the city's elevation around 760 meters and urban heat island effects introduce small variations in observed minima. Differing model outputs on exact cloud timing and boundary-layer temperature profiles create tight market spreads among these outcomes, reflecting genuine uncertainty in pinpointing the precise nocturnal low before official INMET or airport readings finalize the result.
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 3?
12°C 50%
11°C 41%
9°C 5%
10°C 5%
7°C or below
1%
8°C
1%
9°C
5%
10°C
5%
11°C
41%
12°C
50%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C or higher
<1%
12°C 50%
11°C 41%
9°C 5%
10°C 5%
7°C or below
1%
8°C
1%
9°C
5%
10°C
5%
11°C
41%
12°C
50%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C or higher
<1%
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 1, 2026, 8:28 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Recent forecast models for São Paulo on September 3, 2026, indicate overnight lows clustering near 11–13°C amid clear to partly cloudy skies that enhance radiative cooling after sunset. Light easterly winds and moderate humidity limit mixing of warmer air aloft, while the city's elevation around 760 meters and urban heat island effects introduce small variations in observed minima. Differing model outputs on exact cloud timing and boundary-layer temperature profiles create tight market spreads among these outcomes, reflecting genuine uncertainty in pinpointing the precise nocturnal low before official INMET or airport readings finalize the result.
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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