Recent short-range forecasts from multiple models indicate overnight lows in Guangzhou around 25–27°C on September 17 under partly cloudy skies with light southerly winds and moderate humidity, favoring limited nocturnal radiative cooling. This consensus aligns with climatological norms for mid-September in the region, where persistent warm, moist air masses typically prevent sharp drops. However, the near-even market split between sub-20°C and 30°C+ outcomes reflects trader focus on potential model divergence in boundary-layer mixing or unexpected cloud breaks that could enhance cooling, versus sustained heat advection. Historical lows average near 24°C with rare dips below 20°C, but no active fronts or tropical systems are currently steering conditions. Updated NHC or local meteorological briefings on steering patterns could quickly shift implied probabilities.
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 17?
Lowest temperature in Guangzhou on September 17?
20°C or below 84%
30°C or higher 84%
26°C 52%
27°C 42%
NEW
NEW
Sep 17, 2026
20°C or below
84%
21°C
17%
22°C
40%
23°C
22%
24°C
22%
25°C
24%
26°C
28%
27°C
28%
28°C
18%
29°C
18%
30°C or higher
84%
20°C or below 84%
30°C or higher 84%
26°C 52%
27°C 42%
NEW
NEW
Sep 17, 2026
20°C or below
$0 Vol.
84%
21°C
$0 Vol.
17%
22°C
$74 Vol.
40%
23°C
$48 Vol.
22%
24°C
$0 Vol.
22%
25°C
$5 Vol.
24%
26°C
$47 Vol.
28%
27°C
$45 Vol.
28%
28°C
$0 Vol.
18%
29°C
$0 Vol.
18%
30°C or higher
$0 Vol.
84%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Guangzhou Baiyun International Airport Station in degrees Celsius on 17 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=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.Recent short-range forecasts from multiple models indicate overnight lows in Guangzhou around 25–27°C on September 17 under partly cloudy skies with light southerly winds and moderate humidity, favoring limited nocturnal radiative cooling. This consensus aligns with climatological norms for mid-September in the region, where persistent warm, moist air masses typically prevent sharp drops. However, the near-even market split between sub-20°C and 30°C+ outcomes reflects trader focus on potential model divergence in boundary-layer mixing or unexpected cloud breaks that could enhance cooling, versus sustained heat advection. Historical lows average near 24°C with rare dips below 20°C, but no active fronts or tropical systems are currently steering conditions. Updated NHC or local meteorological briefings on steering patterns could quickly shift implied probabilities.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Guangzhou Baiyun International Airport Station in degrees Celsius on 17 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=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 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 15, 2026, 12:31 AM ET
Volume
$219End Date
Sep 17, 2026Market Opened
Sep 15, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zgggResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Guangzhou Baiyun International Airport Station in degrees Celsius on 17 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=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.Recent short-range forecasts from multiple models indicate overnight lows in Guangzhou around 25–27°C on September 17 under partly cloudy skies with light southerly winds and moderate humidity, favoring limited nocturnal radiative cooling. This consensus aligns with climatological norms for mid-September in the region, where persistent warm, moist air masses typically prevent sharp drops. However, the near-even market split between sub-20°C and 30°C+ outcomes reflects trader focus on potential model divergence in boundary-layer mixing or unexpected cloud breaks that could enhance cooling, versus sustained heat advection. Historical lows average near 24°C with rare dips below 20°C, but no active fronts or tropical systems are currently steering conditions. Updated NHC or local meteorological briefings on steering patterns could quickly shift implied probabilities.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Guangzhou Baiyun International Airport Station in degrees Celsius on 17 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=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 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.
Volume
$219End Date
Sep 17, 2026Market Opened
Sep 15, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zgggResolver
0x69c47De9D...Recent short-range forecasts from multiple models indicate overnight lows in Guangzhou around 25–27°C on September 17 under partly cloudy skies with light southerly winds and moderate humidity, favoring limited nocturnal radiative cooling. This consensus aligns with climatological norms for mid-September in the region, where persistent warm, moist air masses typically prevent sharp drops. However, the near-even market split between sub-20°C and 30°C+ outcomes reflects trader focus on potential model divergence in boundary-layer mixing or unexpected cloud breaks that could enhance cooling, versus sustained heat advection. Historical lows average near 24°C with rare dips below 20°C, but no active fronts or tropical systems are currently steering conditions. Updated NHC or local meteorological briefings on steering patterns could quickly shift implied probabilities.
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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