Persistent cloud cover and southeasterly flow associated with a frontal system and Amazonian moisture have kept Sao Paulo temperatures suppressed near 13–15 °C through the morning of September 13, limiting nocturnal radiative cooling under high humidity and overcast skies. Official station data and model guidance show minimums hovering around 12–14 °C, with trader consensus split across 13 °C, 14 °C, and 15 °C outcomes because small differences in wind speed, timing of heaviest rain, or urban heat-island effects can shift the recorded low by 1–2 °C. The 10 °C-or-below probability remains elevated due to uncertainty in how much further cooling may occur before official daily minimums are finalized by INMET or airport observations.
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-updateLowest temperature in Sao Paulo on September 13?
10°C or below 96%
15°C 52%
13°C 50%
14°C 49%
$367 Vol.
$367 Vol.
10°C or below
96%
11°C
9%
12°C
9%
13°C
50%
14°C
49%
15°C
52%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C or higher
<1%
10°C or below 96%
15°C 52%
13°C 50%
14°C 49%
$367 Vol.
$367 Vol.
10°C or below
96%
11°C
9%
12°C
9%
13°C
50%
14°C
49%
15°C
52%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C or higher
<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.
Binuksan ang Market: Sep 11, 2026, 8:29 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 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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=sbgrResolver
0x69c47De9D...Persistent cloud cover and southeasterly flow associated with a frontal system and Amazonian moisture have kept Sao Paulo temperatures suppressed near 13–15 °C through the morning of September 13, limiting nocturnal radiative cooling under high humidity and overcast skies. Official station data and model guidance show minimums hovering around 12–14 °C, with trader consensus split across 13 °C, 14 °C, and 15 °C outcomes because small differences in wind speed, timing of heaviest rain, or urban heat-island effects can shift the recorded low by 1–2 °C. The 10 °C-or-below probability remains elevated due to uncertainty in how much further cooling may occur before official daily minimums are finalized by INMET or airport observations.
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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