Recent forecasts from the Korea Meteorological Administration and supporting models indicate a mild overnight period for Incheon on September 13, with the lowest temperature expected near 20°C under mostly cloudy skies, light westerly winds, and weak pressure gradients that limit strong radiative cooling. This aligns with mid-September climatology, where average lows hover around 18–20°C amid transitioning autumn patterns and residual warm maritime air. Trader consensus clusters on 19–21°C outcomes because ensemble guidance shows minimal day-to-day variability and no incoming cold advection or clear-sky intensification of cooling. Minor uncertainties stem from exact cloud timing and urban heat-island effects, which could nudge the minimum by 1°C either way 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 Seoul (Incheon) on September 13?
20°C 45%
19°C 29%
21°C 21%
18°C 6%
16°C or below
3%
17°C
3%
18°C
6%
19°C
29%
20°C
45%
21°C
21%
22°C
4%
23°C
1%
24°C
1%
25°C
<1%
26°C or higher
<1%
20°C 45%
19°C 29%
21°C 21%
18°C 6%
16°C or below
3%
17°C
3%
18°C
6%
19°C
29%
20°C
45%
21°C
21%
22°C
4%
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...Recent forecasts from the Korea Meteorological Administration and supporting models indicate a mild overnight period for Incheon on September 13, with the lowest temperature expected near 20°C under mostly cloudy skies, light westerly winds, and weak pressure gradients that limit strong radiative cooling. This aligns with mid-September climatology, where average lows hover around 18–20°C amid transitioning autumn patterns and residual warm maritime air. Trader consensus clusters on 19–21°C outcomes because ensemble guidance shows minimal day-to-day variability and no incoming cold advection or clear-sky intensification of cooling. Minor uncertainties stem from exact cloud timing and urban heat-island effects, which could nudge the minimum by 1°C either way 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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