**Recent model consensus points to scattered thunderstorms and increased cloud cover moderating peak heating in Guangzhou on September 23, keeping the daily maximum most likely between 32–34 °C.** Subtropical monsoon conditions with light easterly winds, high humidity near 70 %, and 60–70 % rain probability will reduce solar insolation and evaporative cooling, limiting afternoon temperatures relative to the clearer, hotter days of September 21–22 that reached 34–36 °C. Official guidance from regional forecasts shows highs clustered around 31–33 °C, consistent with late-September climatology (average daily maximum near 31.3 °C), while any breaks in cloud cover or delayed convection could briefly allow readings near 35 °C. Market-implied odds reflect this narrow range and inherent forecast uncertainty in short-range mesoscale modeling.
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 September 23?
34°C 30%
33°C 23%
32°C 19%
31°C 16%
27°C or below
1%
28°C
3%
29°C
3%
30°C
7%
31°C
16%
32°C
19%
33°C
23%
34°C
30%
35°C
16%
36°C
2%
37°C or higher
1%
34°C 30%
33°C 23%
32°C 19%
31°C 16%
27°C or below
1%
28°C
3%
29°C
3%
30°C
7%
31°C
16%
32°C
19%
33°C
23%
34°C
30%
35°C
16%
36°C
2%
37°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=zggg
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.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 21, 2026, 12:58 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
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.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 model consensus points to scattered thunderstorms and increased cloud cover moderating peak heating in Guangzhou on September 23, keeping the daily maximum most likely between 32–34 °C.** Subtropical monsoon conditions with light easterly winds, high humidity near 70 %, and 60–70 % rain probability will reduce solar insolation and evaporative cooling, limiting afternoon temperatures relative to the clearer, hotter days of September 21–22 that reached 34–36 °C. Official guidance from regional forecasts shows highs clustered around 31–33 °C, consistent with late-September climatology (average daily maximum near 31.3 °C), while any breaks in cloud cover or delayed convection could briefly allow readings near 35 °C. Market-implied odds reflect this narrow range and inherent forecast uncertainty in short-range mesoscale modeling.
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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