Recent model consensus from sources including GFS and regional forecasts points to a maximum temperature near 28°C in São Paulo on September 25, supporting the leading market-implied probabilities for 27–29°C. Stable high-pressure conditions, light easterly winds, and minimal cloud cover are expected to allow daytime heating under mostly clear to partly cloudy skies, with negligible precipitation risk. This aligns with late-September climatology, though current overnight readings remain cooler around 14–16°C. Model spread and potential minor steering pattern shifts introduce uncertainty, with new runs and observational updates from monitoring agencies likely to refine the outlook before resolution.
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 25?
28°C 36%
27°C 26%
29°C 21%
26°C 7%
22°C or below
1%
23°C
1%
24°C
2%
25°C
4%
26°C
7%
27°C
26%
28°C
36%
29°C
21%
30°C
3%
31°C
<1%
32°C or higher
<1%
28°C 36%
27°C 26%
29°C 21%
26°C 7%
22°C or below
1%
23°C
1%
24°C
2%
25°C
4%
26°C
7%
27°C
26%
28°C
36%
29°C
21%
30°C
3%
31°C
<1%
32°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 23, 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...Recent model consensus from sources including GFS and regional forecasts points to a maximum temperature near 28°C in São Paulo on September 25, supporting the leading market-implied probabilities for 27–29°C. Stable high-pressure conditions, light easterly winds, and minimal cloud cover are expected to allow daytime heating under mostly clear to partly cloudy skies, with negligible precipitation risk. This aligns with late-September climatology, though current overnight readings remain cooler around 14–16°C. Model spread and potential minor steering pattern shifts introduce uncertainty, with new runs and observational updates from monitoring agencies likely to refine the outlook before resolution.
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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