Trader consensus strongly favors a 20°C minimum in Incheon on September 13 due to consistent model guidance showing overnight lows stabilizing near that threshold. Official forecasts from sources using GFS data project early-morning readings of 19–21°C under mostly cloudy skies with light winds and high humidity near 80–90 percent, aligning closely with climatological norms for mid-September. This positioning reflects the convergence of numerical weather prediction outputs and real-time station observations from Incheon International Airport. A realistic challenge could arise from localized cooling under clearer skies, stronger radiative losses, or revisions in final verified readings that push the daily minimum to 19°C or 21°C.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Seoul (Incheon) on September 13?
20°C 99%
18°C 2%
19°C 1.0%
17°C <1%
$10,496 Vol.
$10,496 Vol.
16°C or below
<1%
17°C
1%
18°C
2%
19°C
1%
20°C
99%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C or higher
<1%
20°C 99%
18°C 2%
19°C 1.0%
17°C <1%
$10,496 Vol.
$10,496 Vol.
16°C or below
<1%
17°C
1%
18°C
2%
19°C
1%
20°C
99%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C or higher
<1%
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=rksi
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 11, 2026, 12:29 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=rksiResolver
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=rksi
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=rksiResolver
0x69c47De9D...Trader consensus strongly favors a 20°C minimum in Incheon on September 13 due to consistent model guidance showing overnight lows stabilizing near that threshold. Official forecasts from sources using GFS data project early-morning readings of 19–21°C under mostly cloudy skies with light winds and high humidity near 80–90 percent, aligning closely with climatological norms for mid-September. This positioning reflects the convergence of numerical weather prediction outputs and real-time station observations from Incheon International Airport. A realistic challenge could arise from localized cooling under clearer skies, stronger radiative losses, or revisions in final verified readings that push the daily minimum to 19°C or 21°C.
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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