Current forecasts from multiple models indicate Sao Paulo overnight lows on August 26 will likely settle near 15–16°C amid persistent cloud cover, light easterly winds, and elevated humidity that suppress radiative cooling. Recent days have featured above-average minimums for late August, with overcast skies and dew points near 14°C limiting temperature drops despite the Southern Hemisphere winter baseline. Trader positioning remains split because model ensembles show modest spread in boundary-layer mixing and any brief clearing windows, while official guidance from regional meteorological services emphasizes stable mild conditions without strong cold-air advection. New ECMWF and GFS runs expected overnight represent the next key data points that could refine implied probabilities ahead of resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Sao Paulo on August 26?
20°C or higher 86%
10°C or below 85%
18°C 49%
19°C 49%
10°C or below
85%
11°C
47%
12°C
25%
13°C
25%
14°C
25%
15°C
30%
16°C
28%
17°C
25%
18°C
49%
19°C
49%
20°C or higher
86%
20°C or higher 86%
10°C or below 85%
18°C 49%
19°C 49%
10°C or below
85%
11°C
47%
12°C
25%
13°C
25%
14°C
25%
15°C
30%
16°C
28%
17°C
25%
18°C
49%
19°C
49%
20°C or higher
86%
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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
Market Opened: Aug 24, 2026, 9:29 PM 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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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...Current forecasts from multiple models indicate Sao Paulo overnight lows on August 26 will likely settle near 15–16°C amid persistent cloud cover, light easterly winds, and elevated humidity that suppress radiative cooling. Recent days have featured above-average minimums for late August, with overcast skies and dew points near 14°C limiting temperature drops despite the Southern Hemisphere winter baseline. Trader positioning remains split because model ensembles show modest spread in boundary-layer mixing and any brief clearing windows, while official guidance from regional meteorological services emphasizes stable mild conditions without strong cold-air advection. New ECMWF and GFS runs expected overnight represent the next key data points that could refine implied probabilities ahead of resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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