Recent forecasts for Chengdu indicate nighttime lows near 19–21°C on September 18, with light rain, persistent cloud cover, and high humidity limiting radiative cooling and keeping temperatures from dropping sharply. These conditions align with typical mid-September patterns in the Sichuan Basin, where average lows hover around 19–20°C amid moist southerly flow. Model consensus shows minimal day-to-day variability, yet slight differences in predicted cloud thickness and wind speed create uncertainty between a modest cool-down below 18°C or sustained warmth near 21–22°C. Updated short-range guidance and surface observations in the next 48 hours will likely refine the exact minimum before market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Chengdu on September 18?
Lowest temperature in Chengdu on September 18?
15°C or below 100%
25°C or higher 98%
20°C 40%
21°C 40%
NEW
NEW
Sep 18, 2026
15°C or below
100%
16°C
39%
17°C
23%
18°C
23%
19°C
31%
20°C
40%
21°C
40%
22°C
40%
23°C
24%
24°C
24%
25°C or higher
98%
15°C or below 100%
25°C or higher 98%
20°C 40%
21°C 40%
NEW
NEW
Sep 18, 2026
15°C or below
$0 Vol.
100%
16°C
$0 Vol.
39%
17°C
$0 Vol.
23%
18°C
$0 Vol.
23%
19°C
$0 Vol.
31%
20°C
$0 Vol.
40%
21°C
$0 Vol.
40%
22°C
$0 Vol.
40%
23°C
$0 Vol.
24%
24°C
$0 Vol.
24%
25°C or higher
$0 Vol.
98%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 18 Sep '26.
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=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.Recent forecasts for Chengdu indicate nighttime lows near 19–21°C on September 18, with light rain, persistent cloud cover, and high humidity limiting radiative cooling and keeping temperatures from dropping sharply. These conditions align with typical mid-September patterns in the Sichuan Basin, where average lows hover around 19–20°C amid moist southerly flow. Model consensus shows minimal day-to-day variability, yet slight differences in predicted cloud thickness and wind speed create uncertainty between a modest cool-down below 18°C or sustained warmth near 21–22°C. Updated short-range guidance and surface observations in the next 48 hours will likely refine the exact minimum before market resolution.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 18 Sep '26.
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=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 lowest 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 16, 2026, 12:30 AM ET
Volume
$0End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:30 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zuuuResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 18 Sep '26.
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=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.Recent forecasts for Chengdu indicate nighttime lows near 19–21°C on September 18, with light rain, persistent cloud cover, and high humidity limiting radiative cooling and keeping temperatures from dropping sharply. These conditions align with typical mid-September patterns in the Sichuan Basin, where average lows hover around 19–20°C amid moist southerly flow. Model consensus shows minimal day-to-day variability, yet slight differences in predicted cloud thickness and wind speed create uncertainty between a modest cool-down below 18°C or sustained warmth near 21–22°C. Updated short-range guidance and surface observations in the next 48 hours will likely refine the exact minimum before market resolution.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Chengdu Shuangliu International Airport Station in degrees Celsius on 18 Sep '26.
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=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 lowest 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
$0End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:30 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zuuuResolver
0x69c47De9D...Recent forecasts for Chengdu indicate nighttime lows near 19–21°C on September 18, with light rain, persistent cloud cover, and high humidity limiting radiative cooling and keeping temperatures from dropping sharply. These conditions align with typical mid-September patterns in the Sichuan Basin, where average lows hover around 19–20°C amid moist southerly flow. Model consensus shows minimal day-to-day variability, yet slight differences in predicted cloud thickness and wind speed create uncertainty between a modest cool-down below 18°C or sustained warmth near 21–22°C. Updated short-range guidance and surface observations in the next 48 hours will likely refine the exact minimum before market 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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