Persistent cloud cover and light northeasterly winds under a stable high-pressure system are capping daytime heating across the Seoul-Incheon region on September 12, keeping the peak temperature tightly clustered near 24–25°C according to multiple model outputs and official guidance. Overcast skies reduce solar insolation while modest advection from the northeast prevents stronger warming, consistent with the seasonal decline in September highs after the summer monsoon. Recent stability with no approaching fronts or typhoons has reinforced this pattern, though minor differences in cloud thickness or exact wind shifts between models create the narrow spread between 24°C and 25°C outcomes. Traders appear to weigh the slight model consensus edge toward 24°C against the possibility of brief clearing allowing a 25°C or even 26°C 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 12?
Highest temperature in Seoul (Incheon) on September 12?
24°C 42%
25°C 40%
26°C 12%
23°C 9%
NEW
$24,108 Vol.
NEW
$24,108 Vol.
Sep 12, 2026
19°C or below
<1%
20°C
<1%
21°C
1%
22°C
1%
23°C
9%
24°C
42%
25°C
40%
26°C
12%
27°C
2%
28°C
<1%
29°C or higher
<1%
24°C 42%
25°C 40%
26°C 12%
23°C 9%
NEW
$24,108 Vol.
NEW
$24,108 Vol.
Sep 12, 2026
19°C or below
$311 Vol.
<1%
20°C
$244 Vol.
<1%
21°C
$975 Vol.
1%
22°C
$1,919 Vol.
1%
23°C
$3,437 Vol.
9%
24°C
$3,178 Vol.
42%
25°C
$5,103 Vol.
40%
26°C
$3,921 Vol.
12%
27°C
$1,661 Vol.
2%
28°C
$2,286 Vol.
<1%
29°C or higher
$1,207 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 12 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.Persistent cloud cover and light northeasterly winds under a stable high-pressure system are capping daytime heating across the Seoul-Incheon region on September 12, keeping the peak temperature tightly clustered near 24–25°C according to multiple model outputs and official guidance. Overcast skies reduce solar insolation while modest advection from the northeast prevents stronger warming, consistent with the seasonal decline in September highs after the summer monsoon. Recent stability with no approaching fronts or typhoons has reinforced this pattern, though minor differences in cloud thickness or exact wind shifts between models create the narrow spread between 24°C and 25°C outcomes. Traders appear to weigh the slight model consensus edge toward 24°C against the possibility of brief clearing allowing a 25°C or even 26°C 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 12 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 10, 2026, 12:56 AM ET
Volume
$24,108End Date
Sep 12, 2026Market Opened
Sep 10, 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 12 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.Persistent cloud cover and light northeasterly winds under a stable high-pressure system are capping daytime heating across the Seoul-Incheon region on September 12, keeping the peak temperature tightly clustered near 24–25°C according to multiple model outputs and official guidance. Overcast skies reduce solar insolation while modest advection from the northeast prevents stronger warming, consistent with the seasonal decline in September highs after the summer monsoon. Recent stability with no approaching fronts or typhoons has reinforced this pattern, though minor differences in cloud thickness or exact wind shifts between models create the narrow spread between 24°C and 25°C outcomes. Traders appear to weigh the slight model consensus edge toward 24°C against the possibility of brief clearing allowing a 25°C or even 26°C 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 12 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
$24,108End Date
Sep 12, 2026Market Opened
Sep 10, 2026, 12:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rksiResolver
0x69c47De9D...Persistent cloud cover and light northeasterly winds under a stable high-pressure system are capping daytime heating across the Seoul-Incheon region on September 12, keeping the peak temperature tightly clustered near 24–25°C according to multiple model outputs and official guidance. Overcast skies reduce solar insolation while modest advection from the northeast prevents stronger warming, consistent with the seasonal decline in September highs after the summer monsoon. Recent stability with no approaching fronts or typhoons has reinforced this pattern, though minor differences in cloud thickness or exact wind shifts between models create the narrow spread between 24°C and 25°C outcomes. Traders appear to weigh the slight model consensus edge toward 24°C against the possibility of brief clearing allowing a 25°C or even 26°C 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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