Persistent cloud cover, widespread showers, and southeasterly flow from a frontal system and associated low-pressure areas are capping solar heating and holding maximum temperatures in São Paulo near 17–18 °C on September 14. High humidity and reduced insolation under overcast skies limit diurnal warming, while light easterly winds prevent significant advection of warmer air. Ensemble guidance from global models shows tight clustering around these values, with small differences in afternoon clearing or shower timing distinguishing the 17 °C versus 18 °C outcomes. Historical September averages near 23 °C underscore how anomalous the current cool, wet pattern is. Traders are weighting the latest model runs and INMET guidance heavily as resolution nears.
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 14?
17°C 29%
18°C 29%
19°C 17%
16°C 16%
14°C or below
3%
15°C
6%
16°C
16%
17°C
29%
18°C
29%
19°C
17%
20°C
5%
21°C
3%
22°C
<1%
23°C
1%
24°C or higher
<1%
17°C 29%
18°C 29%
19°C 17%
16°C 16%
14°C or below
3%
15°C
6%
16°C
16%
17°C
29%
18°C
29%
19°C
17%
20°C
5%
21°C
3%
22°C
<1%
23°C
1%
24°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 12, 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...Persistent cloud cover, widespread showers, and southeasterly flow from a frontal system and associated low-pressure areas are capping solar heating and holding maximum temperatures in São Paulo near 17–18 °C on September 14. High humidity and reduced insolation under overcast skies limit diurnal warming, while light easterly winds prevent significant advection of warmer air. Ensemble guidance from global models shows tight clustering around these values, with small differences in afternoon clearing or shower timing distinguishing the 17 °C versus 18 °C outcomes. Historical September averages near 23 °C underscore how anomalous the current cool, wet pattern is. Traders are weighting the latest model runs and INMET guidance heavily as resolution nears.
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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