**Forecast consensus from the Korea Meteorological Administration (KMA) and global models places the September 4 high for the Incheon/Seoul area at 29–30 °C under a strengthening high-pressure ridge with northeasterly flow.** Clear to mostly sunny skies and light-to-moderate winds (6–10 m/s) favor strong daytime heating without significant cloud cover or precipitation to suppress temperatures. Recent KMA short-term guidance and ensemble runs show minimal spread, with afternoon peaks consistently projected near 29–30 °C after morning lows in the low 20s; minor model differences center on exact wind strength and boundary-layer mixing rather than major shifts. Historical September climatology for Incheon supports highs in this range during early-month high-pressure regimes, positioning the market’s heavy weighting toward 30 °C (48 %) and 29 °C (26 %) as a direct reflection of stable, high-confidence guidance two days before resolution.
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 4?
30°C 49%
29°C 28%
31°C 14%
28°C 7%
23°C or below
1%
24°C
1%
25°C
1%
26°C
4%
27°C
3%
28°C
7%
29°C
28%
30°C
49%
31°C
14%
32°C
3%
33°C or higher
1%
30°C 49%
29°C 28%
31°C 14%
28°C 7%
23°C or below
1%
24°C
1%
25°C
1%
26°C
4%
27°C
3%
28°C
7%
29°C
28%
30°C
49%
31°C
14%
32°C
3%
33°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 2, 2026, 12:56 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 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...**Forecast consensus from the Korea Meteorological Administration (KMA) and global models places the September 4 high for the Incheon/Seoul area at 29–30 °C under a strengthening high-pressure ridge with northeasterly flow.** Clear to mostly sunny skies and light-to-moderate winds (6–10 m/s) favor strong daytime heating without significant cloud cover or precipitation to suppress temperatures. Recent KMA short-term guidance and ensemble runs show minimal spread, with afternoon peaks consistently projected near 29–30 °C after morning lows in the low 20s; minor model differences center on exact wind strength and boundary-layer mixing rather than major shifts. Historical September climatology for Incheon supports highs in this range during early-month high-pressure regimes, positioning the market’s heavy weighting toward 30 °C (48 %) and 29 °C (26 %) as a direct reflection of stable, high-confidence guidance two days before 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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