Trader consensus on the Sao Paulo minimum temperature for September 10 centers on 15–16°C due to closely aligned official station readings near 15°C amid light showers and high humidity that moderated nocturnal radiative cooling. Subtropical spring conditions, with dew points near the air temperature and light easterly winds, limited further drops below this range while urban heat island effects and variable cloud cover introduced minor measurement variability across monitoring sites. Historical September lows average around 12–14°C, but recent model consensus and preliminary airport data from Congonhas and Guarulhos supported the tight 15–16°C bracket. Resolution hinges on final verified minimums from Brazil’s national meteorological service, with any post-event adjustments to hourly observations the key remaining variable.
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 10?
16°C 99%
13°C or below <1%
14°C <1%
15°C <1%
$970 Vol.
$970 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
Yes
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C or higher
No
16°C 99%
13°C or below <1%
14°C <1%
15°C <1%
$970 Vol.
$970 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
Yes
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C or higher
No
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 8, 2026, 8:28 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on the Sao Paulo minimum temperature for September 10 centers on 15–16°C due to closely aligned official station readings near 15°C amid light showers and high humidity that moderated nocturnal radiative cooling. Subtropical spring conditions, with dew points near the air temperature and light easterly winds, limited further drops below this range while urban heat island effects and variable cloud cover introduced minor measurement variability across monitoring sites. Historical September lows average around 12–14°C, but recent model consensus and preliminary airport data from Congonhas and Guarulhos supported the tight 15–16°C bracket. Resolution hinges on final verified minimums from Brazil’s national meteorological service, with any post-event adjustments to hourly observations the key remaining variable.
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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