**Persistent easterly flow and extensive cloud cover are anchoring trader sentiment around a 21–23°C high for São Paulo on September 18.** Official and ensemble model guidance from sources such as the Met Office and regional forecasts converge on daytime maxima near 22°C under mostly cloudy skies, with light to moderate easterly winds limiting diurnal warming and keeping surface temperatures below typical spring peaks. Minor differences in predicted cloud thickness and timing of any partial clearing explain the close market-implied odds, as even modest increases in insolation could push readings to 23°C while sustained overcast conditions favor 21°C. Historical September averages near 26–27°C underscore the current cooler anomaly driven by these synoptic patterns, with resolution hinging on the final observed maximum reported by INMET or equivalent authorities.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · Actualizado¿La temperatura más alta en Sao Paulo el 18 de septiembre?
¿La temperatura más alta en Sao Paulo el 18 de septiembre?
21°C 34%
22°C 24%
23°C 22%
20°C 8%
NUEVO
$12,004 Vol.
NUEVO
$12,004 Vol.
18 sep 2026
15°C o menos
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
1%
20°C
8%
21°C
34%
22°C
24%
23°C
24%
24°C
7%
25°C o más
2%
21°C 34%
22°C 24%
23°C 22%
20°C 8%
NUEVO
$12,004 Vol.
NUEVO
$12,004 Vol.
18 sep 2026
15°C o menos
$1,198 Vol.
<1%
16°C
$1,249 Vol.
<1%
17°C
$1,239 Vol.
<1%
18°C
$248 Vol.
<1%
19°C
$115 Vol.
1%
20°C
$338 Vol.
8%
21°C
$1,748 Vol.
34%
22°C
$1,984 Vol.
24%
23°C
$1,116 Vol.
24%
24°C
$1,493 Vol.
7%
25°C o más
$1,277 Vol.
2%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 18 Sep '26.
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.**Persistent easterly flow and extensive cloud cover are anchoring trader sentiment around a 21–23°C high for São Paulo on September 18.** Official and ensemble model guidance from sources such as the Met Office and regional forecasts converge on daytime maxima near 22°C under mostly cloudy skies, with light to moderate easterly winds limiting diurnal warming and keeping surface temperatures below typical spring peaks. Minor differences in predicted cloud thickness and timing of any partial clearing explain the close market-implied odds, as even modest increases in insolation could push readings to 23°C while sustained overcast conditions favor 21°C. Historical September averages near 26–27°C underscore the current cooler anomaly driven by these synoptic patterns, with resolution hinging on the final observed maximum reported by INMET or equivalent authorities.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 18 Sep '26.
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.
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.
Mercado abierto: Sep 16, 2026, 8:55 AM ET
Volumen
$12,004Fecha de finalización
18 sep 2026Mercado abierto
Sep 16, 2026, 8:55 AM ETFuente de resolución
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 18 Sep '26.
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.**Persistent easterly flow and extensive cloud cover are anchoring trader sentiment around a 21–23°C high for São Paulo on September 18.** Official and ensemble model guidance from sources such as the Met Office and regional forecasts converge on daytime maxima near 22°C under mostly cloudy skies, with light to moderate easterly winds limiting diurnal warming and keeping surface temperatures below typical spring peaks. Minor differences in predicted cloud thickness and timing of any partial clearing explain the close market-implied odds, as even modest increases in insolation could push readings to 23°C while sustained overcast conditions favor 21°C. Historical September averages near 26–27°C underscore the current cooler anomaly driven by these synoptic patterns, with resolution hinging on the final observed maximum reported by INMET or equivalent authorities.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 18 Sep '26.
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.
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.
Volumen
$12,004Fecha de finalización
18 sep 2026Mercado abierto
Sep 16, 2026, 8:55 AM ETFuente de resolución
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...**Persistent easterly flow and extensive cloud cover are anchoring trader sentiment around a 21–23°C high for São Paulo on September 18.** Official and ensemble model guidance from sources such as the Met Office and regional forecasts converge on daytime maxima near 22°C under mostly cloudy skies, with light to moderate easterly winds limiting diurnal warming and keeping surface temperatures below typical spring peaks. Minor differences in predicted cloud thickness and timing of any partial clearing explain the close market-implied odds, as even modest increases in insolation could push readings to 23°C while sustained overcast conditions favor 21°C. Historical September averages near 26–27°C underscore the current cooler anomaly driven by these synoptic patterns, with resolution hinging on the final observed maximum reported by INMET or equivalent authorities.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · Actualizado
Cuidado con los enlaces externos.
Cuidado con los enlaces externos.
Preguntas frecuentes