**Incoming cooler air and persistent cloud cover with rain are positioning overnight lows near or below 15°C as the leading market outcomes for Sao Paulo on September 13.** Southeasterly winds and a shift from recent warm, sunny conditions (highs near 27–30°C) to overcast skies and precipitation are limiting daytime heating while moderating but not fully suppressing nocturnal cooling at the city’s ~760–800 m elevation. Official and model guidance points to daytime highs around 16–17°C and lows of 13–15°C, consistent with September climatology yet cooler than the prior week. Trader emphasis on the 10°C-or-below bin (45% implied probability) reflects uncertainty in forecast model spread and the potential for stronger radiational cooling or a more pronounced cold-air intrusion if skies clear overnight. Upcoming NHC/INMET updates and real-time observations will refine these market-implied odds.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · AktualisiertNiedrigste Temperatur in Sao Paulo am 13. September?
10°C oder darunter 97%
15°C 32%
16°C 31%
14°C 27%
10°C oder darunter
97%
11°C
9%
12°C
9%
13°C
26%
14°C
27%
15°C
32%
16°C
31%
17°C
<1%
18°C
<1%
19°C
<1%
20°C oder höher
<1%
10°C oder darunter 97%
15°C 32%
16°C 31%
14°C 27%
10°C oder darunter
97%
11°C
9%
12°C
9%
13°C
26%
14°C
27%
15°C
32%
16°C
31%
17°C
<1%
18°C
<1%
19°C
<1%
20°C oder höher
<1%
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.
Markt eröffnet: Sep 11, 2026, 8:29 AM ET
Abwicklungsquelle
https://www.weather.gov/wrh/timeseries?site=sbgrAbwickler
0x69c47De9D...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.
Abwicklungsquelle
https://www.weather.gov/wrh/timeseries?site=sbgrAbwickler
0x69c47De9D...**Incoming cooler air and persistent cloud cover with rain are positioning overnight lows near or below 15°C as the leading market outcomes for Sao Paulo on September 13.** Southeasterly winds and a shift from recent warm, sunny conditions (highs near 27–30°C) to overcast skies and precipitation are limiting daytime heating while moderating but not fully suppressing nocturnal cooling at the city’s ~760–800 m elevation. Official and model guidance points to daytime highs around 16–17°C and lows of 13–15°C, consistent with September climatology yet cooler than the prior week. Trader emphasis on the 10°C-or-below bin (45% implied probability) reflects uncertainty in forecast model spread and the potential for stronger radiational cooling or a more pronounced cold-air intrusion if skies clear overnight. Upcoming NHC/INMET updates and real-time observations will refine these market-implied odds.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · Aktualisiert
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