Recent numerical weather models and observational trends point to a Guangzhou high temperature most likely in the 29–32°C range on September 3, driven by widespread cloud cover, northwest winds, and scattered thunderstorm activity that restrict peak solar heating and surface warming. High humidity levels near 65–80% and the potential for brief clearing support the market’s concentration on 31°C and 32°C outcomes, while historical September averages near 32.8°C provide context for why traders assign minimal weight to 33°C or above. Updated forecasts from agencies such as the National Meteorological Center and real-time station data will refine probabilities as the day concludes.
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 3?
31°C 67%
32°C 30%
33°C 3.5%
34°C <1%
$36,577 Vol.
$36,577 Vol.
25°C or below
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C
<1%
31°C
67%
32°C
30%
33°C
3%
34°C
<1%
35°C or higher
<1%
31°C 67%
32°C 30%
33°C 3.5%
34°C <1%
$36,577 Vol.
$36,577 Vol.
25°C or below
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C
<1%
31°C
67%
32°C
30%
33°C
3%
34°C
<1%
35°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 1, 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 numerical weather models and observational trends point to a Guangzhou high temperature most likely in the 29–32°C range on September 3, driven by widespread cloud cover, northwest winds, and scattered thunderstorm activity that restrict peak solar heating and surface warming. High humidity levels near 65–80% and the potential for brief clearing support the market’s concentration on 31°C and 32°C outcomes, while historical September averages near 32.8°C provide context for why traders assign minimal weight to 33°C or above. Updated forecasts from agencies such as the National Meteorological Center and real-time station data will refine probabilities as the day concludes.
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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