Recent forecasts for Guangzhou indicate a nighttime low near 25–27°C on September 18, consistent with the seasonal average of 24°C and typical subtropical late-summer conditions featuring light winds, high humidity, and partly cloudy skies. Multiple models align on minimal overnight cooling due to persistent warm air masses and limited frontal activity, making extremes below 20°C or above 30°C unlikely without an unexpected surge in cloud cover or a rare cold outbreak. Trader consensus splitting between these tails reflects uncertainty in precise model runs near resolution, while mid-20s outcomes capture the most probable range based on current observational trends and climatological baselines. Updated NHC or local meteorological agency briefings tonight could refine steering patterns and confirm the final low.
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 18?
Lowest temperature in Guangzhou on September 18?
20°C or below 89%
30°C or higher 89%
27°C 51%
21°C 39%
NEW
NEW
Sep 18, 2026
20°C or below
89%
21°C
39%
22°C
36%
23°C
39%
24°C
21%
25°C
22%
26°C
22%
27°C
27%
28°C
39%
29°C
39%
30°C or higher
89%
20°C or below 89%
30°C or higher 89%
27°C 51%
21°C 39%
NEW
NEW
Sep 18, 2026
20°C or below
$0 Vol.
89%
21°C
$0 Vol.
39%
22°C
$84 Vol.
36%
23°C
$0 Vol.
39%
24°C
$0 Vol.
21%
25°C
$0 Vol.
22%
26°C
$0 Vol.
22%
27°C
$25 Vol.
27%
28°C
$0 Vol.
39%
29°C
$0 Vol.
39%
30°C or higher
$0 Vol.
89%
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 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=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 forecasts for Guangzhou indicate a nighttime low near 25–27°C on September 18, consistent with the seasonal average of 24°C and typical subtropical late-summer conditions featuring light winds, high humidity, and partly cloudy skies. Multiple models align on minimal overnight cooling due to persistent warm air masses and limited frontal activity, making extremes below 20°C or above 30°C unlikely without an unexpected surge in cloud cover or a rare cold outbreak. Trader consensus splitting between these tails reflects uncertainty in precise model runs near resolution, while mid-20s outcomes capture the most probable range based on current observational trends and climatological baselines. Updated NHC or local meteorological agency briefings tonight could refine steering patterns and confirm the final low.
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 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=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 16, 2026, 12:31 AM ET
Volume
$109End Date
Sep 18, 2026Market Opened
Sep 16, 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 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=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 forecasts for Guangzhou indicate a nighttime low near 25–27°C on September 18, consistent with the seasonal average of 24°C and typical subtropical late-summer conditions featuring light winds, high humidity, and partly cloudy skies. Multiple models align on minimal overnight cooling due to persistent warm air masses and limited frontal activity, making extremes below 20°C or above 30°C unlikely without an unexpected surge in cloud cover or a rare cold outbreak. Trader consensus splitting between these tails reflects uncertainty in precise model runs near resolution, while mid-20s outcomes capture the most probable range based on current observational trends and climatological baselines. Updated NHC or local meteorological agency briefings tonight could refine steering patterns and confirm the final low.
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 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=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
$109End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zgggResolver
0x69c47De9D...Recent forecasts for Guangzhou indicate a nighttime low near 25–27°C on September 18, consistent with the seasonal average of 24°C and typical subtropical late-summer conditions featuring light winds, high humidity, and partly cloudy skies. Multiple models align on minimal overnight cooling due to persistent warm air masses and limited frontal activity, making extremes below 20°C or above 30°C unlikely without an unexpected surge in cloud cover or a rare cold outbreak. Trader consensus splitting between these tails reflects uncertainty in precise model runs near resolution, while mid-20s outcomes capture the most probable range based on current observational trends and climatological baselines. Updated NHC or local meteorological agency briefings tonight could refine steering patterns and confirm the final low.
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