Recent monsoon-driven rainfall and persistent cloud cover across the Pearl River Delta are the dominant near-term drivers keeping market-implied odds tightly clustered around 33–34 °C for Guangzhou’s August 24 maximum. Official guidance from regional models projects highs of 31–33 °C amid 60–80 % precipitation probability, which limits surface insolation and promotes evaporative cooling under high humidity. These conditions explain why 35 °C or higher trails slightly behind while lower outcomes remain low-probability. Forecast divergence among ensembles introduces the main uncertainty, with any break in cloud cover or reduced rainfall potentially shifting the peak upward before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Guangzhou on August 24?
34°C 35%
35°C or higher 29%
33°C 22%
32°C 7%
25°C or below
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C
2%
31°C
4%
32°C
7%
33°C
22%
34°C
35%
35°C or higher
29%
34°C 35%
35°C or higher 29%
33°C 22%
32°C 7%
25°C or below
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C
2%
31°C
4%
32°C
7%
33°C
22%
34°C
35%
35°C or higher
29%
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=zggg
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 22, 2026, 12:57 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zgggResolver
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=zggg
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=zgggResolver
0x69c47De9D...Recent monsoon-driven rainfall and persistent cloud cover across the Pearl River Delta are the dominant near-term drivers keeping market-implied odds tightly clustered around 33–34 °C for Guangzhou’s August 24 maximum. Official guidance from regional models projects highs of 31–33 °C amid 60–80 % precipitation probability, which limits surface insolation and promotes evaporative cooling under high humidity. These conditions explain why 35 °C or higher trails slightly behind while lower outcomes remain low-probability. Forecast divergence among ensembles introduces the main uncertainty, with any break in cloud cover or reduced rainfall potentially shifting the peak upward before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions