Current forecasts from agencies including Brazil’s INMET and CGE, along with global models, indicate a warm, dry air mass will keep São Paulo’s overnight minimum near 19–21 °C on August 30, well above the August climatological average low of ~12–15 °C. Light winds, limited cloud cover, and suppressed radiative cooling under high pressure favor readings clustered around 19–20 °C, aligning with the tight market spread between the 18 °C (48.5 %) and 19 °C (45.5 %) contracts. Any increase in low-level moisture or earlier arrival of a weak front could push the minimum toward 17 °C or below, while stronger subsidence would support 20 °C or higher. Fresh ensemble runs expected within 24 hours will likely refine these probabilities before 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 30?
27°C or higher 50%
18°C 49%
26°C 47%
17°C or below 45%
17°C or below
45%
18°C
49%
19°C
43%
20°C
39%
21°C
38%
22°C
24%
23°C
12%
24°C
24%
25°C
24%
26°C
47%
27°C or higher
50%
27°C or higher 50%
18°C 49%
26°C 47%
17°C or below 45%
17°C or below
45%
18°C
49%
19°C
43%
20°C
39%
21°C
38%
22°C
24%
23°C
12%
24°C
24%
25°C
24%
26°C
47%
27°C or higher
50%
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 28, 2026, 2:29 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...Current forecasts from agencies including Brazil’s INMET and CGE, along with global models, indicate a warm, dry air mass will keep São Paulo’s overnight minimum near 19–21 °C on August 30, well above the August climatological average low of ~12–15 °C. Light winds, limited cloud cover, and suppressed radiative cooling under high pressure favor readings clustered around 19–20 °C, aligning with the tight market spread between the 18 °C (48.5 %) and 19 °C (45.5 %) contracts. Any increase in low-level moisture or earlier arrival of a weak front could push the minimum toward 17 °C or below, while stronger subsidence would support 20 °C or higher. Fresh ensemble runs expected within 24 hours will likely refine these probabilities before 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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