A warm, dry air mass is sustaining elevated temperatures across São Paulo through the weekend, with official forecasts from multiple models indicating daytime highs of 31–36°C and overnight lows of 19–24°C on August 29. This pattern, driven by northerly winds and high pressure, positions the most probable minimum near 20–22°C and keeps the chance of 13°C or below very low absent an unusually rapid frontal passage. Trader emphasis on colder outcomes appears anchored in historical August climatology (typical lows near 12°C) and uncertainty over the timing of the next cold front, now expected to arrive with rain and cooling mainly after September 1. Updated model runs and official briefings in the next 24 hours will likely refine these probabilities as the warm spell persists.
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 29?
13°C or below 85%
16°C 49%
17°C 49%
21°C 49%
13°C or below
85%
14°C
47%
15°C
47%
16°C
49%
17°C
49%
18°C
26%
19°C
31%
20°C
34%
21°C
49%
22°C
49%
23°C or higher
2%
13°C or below 85%
16°C 49%
17°C 49%
21°C 49%
13°C or below
85%
14°C
47%
15°C
47%
16°C
49%
17°C
49%
18°C
26%
19°C
31%
20°C
34%
21°C
49%
22°C
49%
23°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
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.
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 27, 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 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.
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...A warm, dry air mass is sustaining elevated temperatures across São Paulo through the weekend, with official forecasts from multiple models indicating daytime highs of 31–36°C and overnight lows of 19–24°C on August 29. This pattern, driven by northerly winds and high pressure, positions the most probable minimum near 20–22°C and keeps the chance of 13°C or below very low absent an unusually rapid frontal passage. Trader emphasis on colder outcomes appears anchored in historical August climatology (typical lows near 12°C) and uncertainty over the timing of the next cold front, now expected to arrive with rain and cooling mainly after September 1. Updated model runs and official briefings in the next 24 hours will likely refine these probabilities as the warm spell persists.
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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