Recent forecasts from multiple models indicate the overnight low in the Seoul-Incheon area on September 21 will likely settle near 18–19°C under clear to partly cloudy skies, light northeast winds, and stable high pressure. These conditions favor efficient radiational cooling after daytime highs around 29°C, consistent with late-September climatology when average minima trend downward from summer peaks. Trader consensus, reflected in the elevated probabilities for 18°C and 19°C, aligns with this consensus guidance showing minimal model spread and no incoming cold air or precipitation to alter the trajectory. Updated runs continue to support these thresholds without significant revisions.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateLowest temperature in Seoul (Incheon) on September 21?
19°C 41%
18°C 29%
20°C 12%
17°C 10%
14°C or below
<1%
15°C
3%
16°C
1%
17°C
16%
18°C
29%
19°C
41%
20°C
12%
21°C
2%
22°C
<1%
23°C
<1%
24°C or higher
<1%
19°C 41%
18°C 29%
20°C 12%
17°C 10%
14°C or below
<1%
15°C
3%
16°C
1%
17°C
16%
18°C
29%
19°C
41%
20°C
12%
21°C
2%
22°C
<1%
23°C
<1%
24°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.
Binuksan ang Market: Sep 19, 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...Recent forecasts from multiple models indicate the overnight low in the Seoul-Incheon area on September 21 will likely settle near 18–19°C under clear to partly cloudy skies, light northeast winds, and stable high pressure. These conditions favor efficient radiational cooling after daytime highs around 29°C, consistent with late-September climatology when average minima trend downward from summer peaks. Trader consensus, reflected in the elevated probabilities for 18°C and 19°C, aligns with this consensus guidance showing minimal model spread and no incoming cold air or precipitation to alter the trajectory. Updated runs continue to support these thresholds without significant revisions.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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