Recent forecasts from meteorological models indicate a high near 25°C in Incheon on September 15, supported by stable high-pressure systems and northwest winds promoting clear to mostly sunny conditions. Mid-September marks the seasonal transition in the region, with average highs declining from late-summer peaks toward the 26°C climatological norm as solar angles decrease and cooler air masses advect southward. Current observations show temperatures holding in the mid-20s without significant diurnal heating or moisture influx that could push readings higher, while ensemble guidance shows limited spread around this central value. Upcoming model runs from agencies like the Korea Meteorological Administration will refine any adjustments from evolving pressure gradients or cloud cover.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Seoul (Incheon) on September 15?
25°C 52%
26°C 25%
24°C 17%
27°C 5%
19°C or below
<1%
20°C
<1%
21°C
1%
22°C
1%
23°C
4%
24°C
17%
25°C
52%
26°C
25%
27°C
5%
28°C
3%
29°C or higher
1%
25°C 52%
26°C 25%
24°C 17%
27°C 5%
19°C or below
<1%
20°C
<1%
21°C
1%
22°C
1%
23°C
4%
24°C
17%
25°C
52%
26°C
25%
27°C
5%
28°C
3%
29°C or higher
1%
The resolution source for this market will be information from NOAA, specifically the highest 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 13, 2026, 12:56 PM 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 highest 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 meteorological models indicate a high near 25°C in Incheon on September 15, supported by stable high-pressure systems and northwest winds promoting clear to mostly sunny conditions. Mid-September marks the seasonal transition in the region, with average highs declining from late-summer peaks toward the 26°C climatological norm as solar angles decrease and cooler air masses advect southward. Current observations show temperatures holding in the mid-20s without significant diurnal heating or moisture influx that could push readings higher, while ensemble guidance shows limited spread around this central value. Upcoming model runs from agencies like the Korea Meteorological Administration will refine any adjustments from evolving pressure gradients or cloud cover.
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