Recent model consensus from ECMWF and GFS places São Paulo’s overnight minimum on August 25 near 13–15 °C, driven by light southeast winds, high humidity (85–90 %), and variable low-level cloud cover that limits radiative cooling after a recent cold front. Clearer intervals overnight favor the lower end of that range through enhanced long-wave heat loss, while persistent stratiform cloud or slight warm-air advection keeps readings closer to 15 °C. Historical August climatology (mean low ~12 °C) and the urban heat-island effect add modest upward bias, leaving the tightly bunched 13–15 °C outcomes as the dominant trader focus ahead of final observational data.
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 25?
9°C or below 47%
13°C 32%
14°C 31%
15°C 27%
9°C or below
47%
10°C
5%
11°C
8%
12°C
8%
13°C
32%
14°C
31%
15°C
27%
16°C
21%
17°C
10%
18°C
14%
19°C or higher
2%
9°C or below 47%
13°C 32%
14°C 31%
15°C 27%
9°C or below
47%
10°C
5%
11°C
8%
12°C
8%
13°C
32%
14°C
31%
15°C
27%
16°C
21%
17°C
10%
18°C
14%
19°C or higher
2%
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
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 23, 2026, 9:28 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
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...Recent model consensus from ECMWF and GFS places São Paulo’s overnight minimum on August 25 near 13–15 °C, driven by light southeast winds, high humidity (85–90 %), and variable low-level cloud cover that limits radiative cooling after a recent cold front. Clearer intervals overnight favor the lower end of that range through enhanced long-wave heat loss, while persistent stratiform cloud or slight warm-air advection keeps readings closer to 15 °C. Historical August climatology (mean low ~12 °C) and the urban heat-island effect add modest upward bias, leaving the tightly bunched 13–15 °C outcomes as the dominant trader focus ahead of final observational data.
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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