A cold front advancing across southern Brazil is the dominant driver of trader sentiment for São Paulo’s September 6 high temperature, with market-implied odds clustered tightly around 16°C (35%) and 17°C (28.5%). Official forecasts and ensemble model guidance indicate the front will deliver persistent cloud cover, moderate-to-heavy rain, and southeasterly winds of 15–25 km/h, sharply limiting daytime solar heating and advecting cooler polar maritime air. These conditions typically suppress maximum temperatures by 8–12°C relative to seasonal norms near 24–26°C. Minor model differences in frontal timing, rainfall intensity, and boundary-layer mixing produce the narrow spread between 15°C and 18°C outcomes; later model runs or updated surface observations could shift probabilities if the front arrives earlier or if breaks in cloud cover allow brief warming.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in Sao Paulo on September 6?
16°C 35%
17°C 29%
15°C 16%
18°C 14%
13°C or below
4%
14°C
5%
15°C
16%
16°C
35%
17°C
29%
18°C
14%
19°C
4%
20°C
2%
21°C
<1%
22°C
<1%
23°C or higher
<1%
16°C 35%
17°C 29%
15°C 16%
18°C 14%
13°C or below
4%
14°C
5%
15°C
16%
16°C
35%
17°C
29%
18°C
14%
19°C
4%
20°C
2%
21°C
<1%
22°C
<1%
23°C or higher
<1%
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.
Binuksan ang Market: Sep 4, 2026, 8:55 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 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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...A cold front advancing across southern Brazil is the dominant driver of trader sentiment for São Paulo’s September 6 high temperature, with market-implied odds clustered tightly around 16°C (35%) and 17°C (28.5%). Official forecasts and ensemble model guidance indicate the front will deliver persistent cloud cover, moderate-to-heavy rain, and southeasterly winds of 15–25 km/h, sharply limiting daytime solar heating and advecting cooler polar maritime air. These conditions typically suppress maximum temperatures by 8–12°C relative to seasonal norms near 24–26°C. Minor model differences in frontal timing, rainfall intensity, and boundary-layer mixing produce the narrow spread between 15°C and 18°C outcomes; later model runs or updated surface observations could shift probabilities if the front arrives earlier or if breaks in cloud cover allow brief warming.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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