Official Korea Meteorological Administration station observations for Busan on September 21 recorded a midday peak of 28.8°C under clear skies and light easterly flow, aligning precisely with the market's dominant 28°C outcome. This exceeds the late-September climatological average of 23–25°C, driven by persistent high pressure and southerly warmth advection across the Korean Peninsula. Numerical guidance from GFS and ECMWF converged on this range in final runs, with minimal spread and no precipitation to suppress temperatures. Resolution depends on the official KMA daily maximum summary; an uncharacteristic station calibration shift or localized microclimate effect could theoretically alter the exact bucket, though current data make such adjustments improbable.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Busan on September 21?
Highest temperature in Busan on September 21?
28°C 100.0%
23°C or below <1%
24°C <1%
25°C <1%
$71,560 Vol.
$71,560 Vol.
Sep 21, 2026
23°C or below
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
Yes
29°C
No
30°C
No
31°C
No
32°C
No
33°C or higher
No
28°C 100.0%
23°C or below <1%
24°C <1%
25°C <1%
$71,560 Vol.
$71,560 Vol.
Sep 21, 2026
23°C or below
$111 Vol.
No
24°C
$111 Vol.
No
25°C
$111 Vol.
No
26°C
$2,298 Vol.
No
27°C
$26,303 Vol.
No
28°C
$22,229 Vol.
Yes
29°C
$7,170 Vol.
No
30°C
$8,124 Vol.
No
31°C
$4,519 Vol.
No
32°C
$316 Vol.
No
33°C or higher
$267 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Gimhae Intl Airport Station in degrees Celsius on 21 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=rkpk
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.Official Korea Meteorological Administration station observations for Busan on September 21 recorded a midday peak of 28.8°C under clear skies and light easterly flow, aligning precisely with the market's dominant 28°C outcome. This exceeds the late-September climatological average of 23–25°C, driven by persistent high pressure and southerly warmth advection across the Korean Peninsula. Numerical guidance from GFS and ECMWF converged on this range in final runs, with minimal spread and no precipitation to suppress temperatures. Resolution depends on the official KMA daily maximum summary; an uncharacteristic station calibration shift or localized microclimate effect could theoretically alter the exact bucket, though current data make such adjustments improbable.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Gimhae Intl Airport Station in degrees Celsius on 21 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=rkpk
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=rkpk
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 19, 2026, 12:58 AM ET
Volume
$71,560End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rkpkResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Gimhae Intl Airport Station in degrees Celsius on 21 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=rkpk
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.Official Korea Meteorological Administration station observations for Busan on September 21 recorded a midday peak of 28.8°C under clear skies and light easterly flow, aligning precisely with the market's dominant 28°C outcome. This exceeds the late-September climatological average of 23–25°C, driven by persistent high pressure and southerly warmth advection across the Korean Peninsula. Numerical guidance from GFS and ECMWF converged on this range in final runs, with minimal spread and no precipitation to suppress temperatures. Resolution depends on the official KMA daily maximum summary; an uncharacteristic station calibration shift or localized microclimate effect could theoretically alter the exact bucket, though current data make such adjustments improbable.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Gimhae Intl Airport Station in degrees Celsius on 21 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=rkpk
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=rkpk
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
$71,560End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rkpkResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official Korea Meteorological Administration station observations for Busan on September 21 recorded a midday peak of 28.8°C under clear skies and light easterly flow, aligning precisely with the market's dominant 28°C outcome. This exceeds the late-September climatological average of 23–25°C, driven by persistent high pressure and southerly warmth advection across the Korean Peninsula. Numerical guidance from GFS and ECMWF converged on this range in final runs, with minimal spread and no precipitation to suppress temperatures. Resolution depends on the official KMA daily maximum summary; an uncharacteristic station calibration shift or localized microclimate effect could theoretically alter the exact bucket, though current data make such adjustments improbable.
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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