Current forecast models project a minimum temperature near 25–26°C for Guangzhou on September 24, consistent with typical late-September subtropical conditions featuring high humidity, scattered showers, and limited overnight radiative cooling. The near-even market split between 20°C-or-below and 30°C-or-higher outcomes reflects trader uncertainty over short-term variables such as cloud cover, wind shifts from the south-southeast, or any late-model adjustments that could enhance or suppress cooling. Persistent moisture and urban heat-island effects historically keep lows above the 23°C climatological average, yet any clearer skies or northerly flow could allow greater temperature drops. Updated runs from global and regional models will likely clarify resolution thresholds in the final 48 hours.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Guangzhou on September 24?
20°C or below 99%
30°C or higher 98%
25°C 40%
21°C 39%
20°C or below
99%
21°C
39%
22°C
39%
23°C
39%
24°C
39%
25°C
40%
26°C
21%
27°C
21%
28°C
39%
29°C
39%
30°C or higher
98%
20°C or below 99%
30°C or higher 98%
25°C 40%
21°C 39%
20°C or below
99%
21°C
39%
22°C
39%
23°C
39%
24°C
39%
25°C
40%
26°C
21%
27°C
21%
28°C
39%
29°C
39%
30°C or higher
98%
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=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 22, 2026, 12:31 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 lowest 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...Current forecast models project a minimum temperature near 25–26°C for Guangzhou on September 24, consistent with typical late-September subtropical conditions featuring high humidity, scattered showers, and limited overnight radiative cooling. The near-even market split between 20°C-or-below and 30°C-or-higher outcomes reflects trader uncertainty over short-term variables such as cloud cover, wind shifts from the south-southeast, or any late-model adjustments that could enhance or suppress cooling. Persistent moisture and urban heat-island effects historically keep lows above the 23°C climatological average, yet any clearer skies or northerly flow could allow greater temperature drops. Updated runs from global and regional models will likely clarify resolution thresholds in the final 48 hours.
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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