Forecast models for Guangzhou on September 20, 2026, show mostly sunny skies with light northerly winds and high solar insolation supporting afternoon highs near 34–37 °C, aligning with the market’s heavy weighting toward 36 °C (57.5 %) and 37 °C (39.0 %). These probabilities reflect consensus across multiple runs indicating peak readings in that narrow band, tempered by modest humidity and a slight chance of late-day cloud cover or isolated showers that could cap the maximum. Historical September averages near 31.6 °C and a 2024 record of 36.1 °C provide context, but current steering patterns and minimal precipitation risk favor the upper end of the typical range. Afternoon observations from official stations will resolve the market once the daily maximum is confirmed.
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 20?
Highest temperature in Guangzhou on September 20?
36°C 65%
37°C 29%
38°C 3%
35°C 2.2%
$39,640 Vol.
$39,640 Vol.
Sep 20, 2026
29°C or below
<1%
30°C
<1%
31°C
<1%
32°C
<1%
33°C
<1%
34°C
2%
35°C
2%
36°C
65%
37°C
29%
38°C
3%
39°C or higher
1%
36°C 65%
37°C 29%
38°C 3%
35°C 2.2%
$39,640 Vol.
$39,640 Vol.
Sep 20, 2026
29°C or below
$482 Vol.
<1%
30°C
$734 Vol.
<1%
31°C
$639 Vol.
<1%
32°C
$146 Vol.
<1%
33°C
$6,527 Vol.
<1%
34°C
$6,769 Vol.
2%
35°C
$9,234 Vol.
2%
36°C
$5,039 Vol.
65%
37°C
$3,108 Vol.
29%
38°C
$4,422 Vol.
3%
39°C or higher
$2,542 Vol.
1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Guangzhou Baiyun International Airport Station in degrees Celsius on 20 Sep '26.
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.Forecast models for Guangzhou on September 20, 2026, show mostly sunny skies with light northerly winds and high solar insolation supporting afternoon highs near 34–37 °C, aligning with the market’s heavy weighting toward 36 °C (57.5 %) and 37 °C (39.0 %). These probabilities reflect consensus across multiple runs indicating peak readings in that narrow band, tempered by modest humidity and a slight chance of late-day cloud cover or isolated showers that could cap the maximum. Historical September averages near 31.6 °C and a 2024 record of 36.1 °C provide context, but current steering patterns and minimal precipitation risk favor the upper end of the typical range. Afternoon observations from official stations will resolve the market once the daily maximum is confirmed.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Guangzhou Baiyun International Airport Station in degrees Celsius on 20 Sep '26.
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.
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 18, 2026, 12:58 AM ET
Volume
$39,640End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zgggResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Guangzhou Baiyun International Airport Station in degrees Celsius on 20 Sep '26.
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.Forecast models for Guangzhou on September 20, 2026, show mostly sunny skies with light northerly winds and high solar insolation supporting afternoon highs near 34–37 °C, aligning with the market’s heavy weighting toward 36 °C (57.5 %) and 37 °C (39.0 %). These probabilities reflect consensus across multiple runs indicating peak readings in that narrow band, tempered by modest humidity and a slight chance of late-day cloud cover or isolated showers that could cap the maximum. Historical September averages near 31.6 °C and a 2024 record of 36.1 °C provide context, but current steering patterns and minimal precipitation risk favor the upper end of the typical range. Afternoon observations from official stations will resolve the market once the daily maximum is confirmed.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Guangzhou Baiyun International Airport Station in degrees Celsius on 20 Sep '26.
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.
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.
Volume
$39,640End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zgggResolver
0x69c47De9D...Forecast models for Guangzhou on September 20, 2026, show mostly sunny skies with light northerly winds and high solar insolation supporting afternoon highs near 34–37 °C, aligning with the market’s heavy weighting toward 36 °C (57.5 %) and 37 °C (39.0 %). These probabilities reflect consensus across multiple runs indicating peak readings in that narrow band, tempered by modest humidity and a slight chance of late-day cloud cover or isolated showers that could cap the maximum. Historical September averages near 31.6 °C and a 2024 record of 36.1 °C provide context, but current steering patterns and minimal precipitation risk favor the upper end of the typical range. Afternoon observations from official stations will resolve the market once the daily maximum is confirmed.
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