Official forecasts and real-time observations from monitoring stations indicate a daily maximum of 29°C in Chengdu on September 21, driven by a stable warm air mass, light winds, and partial cloud cover that limited daytime heating while preventing rapid cooling. Model consensus from sources such as GFS and ECMWF aligned on this peak under typical late-summer humidity levels near 60-70%, consistent with climatological norms for the region where September highs often reach the upper 20s. Trader consensus at 100% for 29°C reflects this convergence of verified data. A sudden shift in steering patterns or unforecasted convective activity could alter the outcome, though current conditions make significant deviation unlikely 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 Chengdu on September 21?
Highest temperature in Chengdu on September 21?
29°C 100.0%
24°C or below <1%
25°C <1%
26°C <1%
$49,745 Vol.
$49,745 Vol.
Sep 21, 2026
24°C or below
No
25°C
No
26°C
No
27°C
No
28°C
No
29°C
Yes
30°C
No
31°C
No
32°C
No
33°C
No
34°C or higher
No
29°C 100.0%
24°C or below <1%
25°C <1%
26°C <1%
$49,745 Vol.
$49,745 Vol.
Sep 21, 2026
24°C or below
$1,300 Vol.
No
25°C
$8,254 Vol.
No
26°C
$4,999 Vol.
No
27°C
$6,252 Vol.
No
28°C
$7,356 Vol.
No
29°C
$6,353 Vol.
Yes
30°C
$8,294 Vol.
No
31°C
$5,092 Vol.
No
32°C
$671 Vol.
No
33°C
$573 Vol.
No
34°C or higher
$600 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 21 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=zuuu
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.Official forecasts and real-time observations from monitoring stations indicate a daily maximum of 29°C in Chengdu on September 21, driven by a stable warm air mass, light winds, and partial cloud cover that limited daytime heating while preventing rapid cooling. Model consensus from sources such as GFS and ECMWF aligned on this peak under typical late-summer humidity levels near 60-70%, consistent with climatological norms for the region where September highs often reach the upper 20s. Trader consensus at 100% for 29°C reflects this convergence of verified data. A sudden shift in steering patterns or unforecasted convective activity could alter the outcome, though current conditions make significant deviation unlikely before resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 21 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=zuuu
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=zuuu
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 19, 2026, 12:58 AM ET
Volume
$49,745End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zuuuResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 21 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=zuuu
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.Official forecasts and real-time observations from monitoring stations indicate a daily maximum of 29°C in Chengdu on September 21, driven by a stable warm air mass, light winds, and partial cloud cover that limited daytime heating while preventing rapid cooling. Model consensus from sources such as GFS and ECMWF aligned on this peak under typical late-summer humidity levels near 60-70%, consistent with climatological norms for the region where September highs often reach the upper 20s. Trader consensus at 100% for 29°C reflects this convergence of verified data. A sudden shift in steering patterns or unforecasted convective activity could alter the outcome, though current conditions make significant deviation unlikely before resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 21 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=zuuu
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=zuuu
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
$49,745End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zuuuResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official forecasts and real-time observations from monitoring stations indicate a daily maximum of 29°C in Chengdu on September 21, driven by a stable warm air mass, light winds, and partial cloud cover that limited daytime heating while preventing rapid cooling. Model consensus from sources such as GFS and ECMWF aligned on this peak under typical late-summer humidity levels near 60-70%, consistent with climatological norms for the region where September highs often reach the upper 20s. Trader consensus at 100% for 29°C reflects this convergence of verified data. A sudden shift in steering patterns or unforecasted convective activity could alter the outcome, though current conditions make significant deviation unlikely before resolution.
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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