Recent forecasts from multiple models for Seoul and Incheon on September 18 point to a daily high near 28°C under partly to mostly cloudy skies with easterly winds around 5–10 mph, consistent with the market's leading outcomes clustered at 27–29°C. This reflects the typical mid-September transition in the region, where seasonal cooling from peak summer warmth (historical averages near 26°C) is tempered by lingering warmth and light winds that limit mixing and cloud cover moderation. Current conditions on September 16–17 show similar highs of 27–28°C with stable high pressure, supporting the trader consensus while allowing for small variations from exact station readings or minor model shifts in cloud timing. Updated guidance closer to the date will refine the peak.
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 18?
Highest temperature in Seoul (Incheon) on September 18?
28°C 45%
27°C 24%
29°C 21%
26°C 5%
NEW
NEW
Sep 18, 2026
24°C or below
1%
25°C
2%
26°C
5%
27°C
24%
28°C
45%
29°C
21%
30°C
5%
31°C
1%
32°C
1%
33°C
2%
34°C or higher
<1%
28°C 45%
27°C 24%
29°C 21%
26°C 5%
NEW
NEW
Sep 18, 2026
24°C or below
$125 Vol.
1%
25°C
$80 Vol.
2%
26°C
$118 Vol.
5%
27°C
$208 Vol.
24%
28°C
$89 Vol.
45%
29°C
$68 Vol.
21%
30°C
$92 Vol.
5%
31°C
$15 Vol.
1%
32°C
$119 Vol.
1%
33°C
$173 Vol.
2%
34°C or higher
$193 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Incheon Intl Airport Station in degrees Celsius on 18 Sep '26.
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.Recent forecasts from multiple models for Seoul and Incheon on September 18 point to a daily high near 28°C under partly to mostly cloudy skies with easterly winds around 5–10 mph, consistent with the market's leading outcomes clustered at 27–29°C. This reflects the typical mid-September transition in the region, where seasonal cooling from peak summer warmth (historical averages near 26°C) is tempered by lingering warmth and light winds that limit mixing and cloud cover moderation. Current conditions on September 16–17 show similar highs of 27–28°C with stable high pressure, supporting the trader consensus while allowing for small variations from exact station readings or minor model shifts in cloud timing. Updated guidance closer to the date will refine the peak.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Incheon Intl Airport Station in degrees Celsius on 18 Sep '26.
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.
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 16, 2026, 12:56 AM ET
Volume
$1,281End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rksiResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Incheon Intl Airport Station in degrees Celsius on 18 Sep '26.
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.Recent forecasts from multiple models for Seoul and Incheon on September 18 point to a daily high near 28°C under partly to mostly cloudy skies with easterly winds around 5–10 mph, consistent with the market's leading outcomes clustered at 27–29°C. This reflects the typical mid-September transition in the region, where seasonal cooling from peak summer warmth (historical averages near 26°C) is tempered by lingering warmth and light winds that limit mixing and cloud cover moderation. Current conditions on September 16–17 show similar highs of 27–28°C with stable high pressure, supporting the trader consensus while allowing for small variations from exact station readings or minor model shifts in cloud timing. Updated guidance closer to the date will refine the peak.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Incheon Intl Airport Station in degrees Celsius on 18 Sep '26.
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.
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.
Volume
$1,281End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rksiResolver
0x69c47De9D...Recent forecasts from multiple models for Seoul and Incheon on September 18 point to a daily high near 28°C under partly to mostly cloudy skies with easterly winds around 5–10 mph, consistent with the market's leading outcomes clustered at 27–29°C. This reflects the typical mid-September transition in the region, where seasonal cooling from peak summer warmth (historical averages near 26°C) is tempered by lingering warmth and light winds that limit mixing and cloud cover moderation. Current conditions on September 16–17 show similar highs of 27–28°C with stable high pressure, supporting the trader consensus while allowing for small variations from exact station readings or minor model shifts in cloud timing. Updated guidance closer to the date will refine the peak.
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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