Forecasts from multiple models place Sao Paulo’s peak temperature on August 30 near 31–33 °C, consistent with the closely matched market odds favoring those outcomes. Subtropical high pressure and northwesterly flow are advecting warmer continental air while diurnal heating under partly cloudy skies supports modest afternoon maxima. Light winds and low humidity limit convective cooling, yet small differences in cloud timing or weak sea-breeze influence can shift the daily high by 1–2 °C across ensemble members. Historical late-August averages near 23–25 °C highlight the current positive anomaly, but the absence of strong synoptic forcing keeps probabilities distributed across the narrow 30–34 °C window ahead of the next model update cycle.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Sao Paulo on August 30?
32°C 28%
31°C 25%
33°C 15%
30°C 12%
28°C or below
4%
29°C
6%
30°C
12%
31°C
25%
32°C
28%
33°C
15%
34°C
8%
35°C
3%
36°C
1%
37°C
<1%
38°C or higher
<1%
32°C 28%
31°C 25%
33°C 15%
30°C 12%
28°C or below
4%
29°C
6%
30°C
12%
31°C
25%
32°C
28%
33°C
15%
34°C
8%
35°C
3%
36°C
1%
37°C
<1%
38°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the highest 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 28, 2026, 2:55 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 highest 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...Forecasts from multiple models place Sao Paulo’s peak temperature on August 30 near 31–33 °C, consistent with the closely matched market odds favoring those outcomes. Subtropical high pressure and northwesterly flow are advecting warmer continental air while diurnal heating under partly cloudy skies supports modest afternoon maxima. Light winds and low humidity limit convective cooling, yet small differences in cloud timing or weak sea-breeze influence can shift the daily high by 1–2 °C across ensemble members. Historical late-August averages near 23–25 °C highlight the current positive anomaly, but the absence of strong synoptic forcing keeps probabilities distributed across the narrow 30–34 °C window ahead of the next model update cycle.
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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