Official forecasts from Chinese meteorological agencies and international models project a minimum temperature of 18–19°C in Qingdao on September 11, supported by clear to partly cloudy skies, light southerly winds, and the moderating effect of the adjacent Yellow Sea. This aligns with typical early-September climatology for the coastal city, where overnight radiative cooling under high pressure is offset by marine air. The near-even market split between sub-13°C and 22°C+ outcomes likely stems from uncertainty over exact overnight cooling rates and potential model revisions in the final hours, as small shifts in cloud cover or wind could alter the recorded low by a few degrees.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Qingdao on September 11?
22°C or higher 92%
12°C or below 66%
18°C 38%
17°C 33%
12°C or below
66%
13°C
28%
14°C
27%
15°C
20%
16°C
23%
17°C
33%
18°C
38%
19°C
8%
20°C
13%
21°C
13%
22°C or higher
92%
22°C or higher 92%
12°C or below 66%
18°C 38%
17°C 33%
12°C or below
66%
13°C
28%
14°C
27%
15°C
20%
16°C
23%
17°C
33%
18°C
38%
19°C
8%
20°C
13%
21°C
13%
22°C or higher
92%
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=zsqd
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 9, 2026, 12:31 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zsqdResolver
0x69c47De9D...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=zsqd
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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zsqdResolver
0x69c47De9D...Official forecasts from Chinese meteorological agencies and international models project a minimum temperature of 18–19°C in Qingdao on September 11, supported by clear to partly cloudy skies, light southerly winds, and the moderating effect of the adjacent Yellow Sea. This aligns with typical early-September climatology for the coastal city, where overnight radiative cooling under high pressure is offset by marine air. The near-even market split between sub-13°C and 22°C+ outcomes likely stems from uncertainty over exact overnight cooling rates and potential model revisions in the final hours, as small shifts in cloud cover or wind could alter the recorded low by a few degrees.
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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