Forecast models for Guangzhou show high uncertainty in the 48-hour window through September 17, with ensemble spreads reflecting competing influences from the western Pacific subtropical high and possible weak cold-air intrusions from the north. Current conditions feature typical late-summer warmth, but subtle shifts in steering flow or increased cloud cover and rainfall could suppress daytime highs and lower the daily minimum below 20 °C, while clearer skies and stronger southerly flow would favor readings at or above 30 °C. Historical September minima average near 24–26 °C, underscoring how modest changes in boundary-layer moisture and wind direction can swing outcomes across the tightly balanced market thresholds. Updated runs from agencies such as the China Meteorological Administration will likely clarify the signal ahead of 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 Guangzhou on September 17?
Lowest temperature in Guangzhou on September 17?
20°C or below 88%
30°C or higher 71%
27°C 40%
21°C 39%
NEW
NEW
Sep 17, 2026
20°C or below
88%
21°C
39%
22°C
39%
23°C
21%
24°C
22%
25°C
22%
26°C
31%
27°C
40%
28°C
39%
29°C
39%
30°C or higher
71%
20°C or below 88%
30°C or higher 71%
27°C 40%
21°C 39%
NEW
NEW
Sep 17, 2026
20°C or below
$0 Vol.
88%
21°C
$0 Vol.
39%
22°C
$0 Vol.
39%
23°C
$48 Vol.
21%
24°C
$0 Vol.
22%
25°C
$0 Vol.
22%
26°C
$0 Vol.
31%
27°C
$0 Vol.
40%
28°C
$0 Vol.
39%
29°C
$0 Vol.
39%
30°C or higher
$0 Vol.
71%
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.Forecast models for Guangzhou show high uncertainty in the 48-hour window through September 17, with ensemble spreads reflecting competing influences from the western Pacific subtropical high and possible weak cold-air intrusions from the north. Current conditions feature typical late-summer warmth, but subtle shifts in steering flow or increased cloud cover and rainfall could suppress daytime highs and lower the daily minimum below 20 °C, while clearer skies and stronger southerly flow would favor readings at or above 30 °C. Historical September minima average near 24–26 °C, underscoring how modest changes in boundary-layer moisture and wind direction can swing outcomes across the tightly balanced market thresholds. Updated runs from agencies such as the China Meteorological Administration will likely clarify the signal ahead of resolution.
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
$48End 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.Forecast models for Guangzhou show high uncertainty in the 48-hour window through September 17, with ensemble spreads reflecting competing influences from the western Pacific subtropical high and possible weak cold-air intrusions from the north. Current conditions feature typical late-summer warmth, but subtle shifts in steering flow or increased cloud cover and rainfall could suppress daytime highs and lower the daily minimum below 20 °C, while clearer skies and stronger southerly flow would favor readings at or above 30 °C. Historical September minima average near 24–26 °C, underscoring how modest changes in boundary-layer moisture and wind direction can swing outcomes across the tightly balanced market thresholds. Updated runs from agencies such as the China Meteorological Administration will likely clarify the signal ahead of resolution.
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
$48End Date
Sep 17, 2026Market Opened
Sep 15, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zgggResolver
0x69c47De9D...Forecast models for Guangzhou show high uncertainty in the 48-hour window through September 17, with ensemble spreads reflecting competing influences from the western Pacific subtropical high and possible weak cold-air intrusions from the north. Current conditions feature typical late-summer warmth, but subtle shifts in steering flow or increased cloud cover and rainfall could suppress daytime highs and lower the daily minimum below 20 °C, while clearer skies and stronger southerly flow would favor readings at or above 30 °C. Historical September minima average near 24–26 °C, underscoring how modest changes in boundary-layer moisture and wind direction can swing outcomes across the tightly balanced market thresholds. Updated runs from agencies such as the China Meteorological Administration will likely clarify the signal ahead of 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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