Recent forecasts from agencies and models indicate a rainy, overcast day for Busan on September 18 driven by northeast winds and a moist air mass, which limits solar heating and caps the maximum temperature. Cloud cover and precipitation reduce surface insolation while high humidity and onshore flow moderate daytime warming, keeping highs near seasonal norms rather than allowing typical late-September peaks. Ensemble spreads across guidance place the most likely maximum between 23–25°C, explaining the tight market clustering around those outcomes. Final resolution will hinge on the precise timing and intensity of showers as well as any last adjustments in numerical weather prediction runs before observations are recorded.
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 18?
Highest temperature in Busan on September 18?
25°C 37%
24°C 27%
23°C 22%
22°C 12%
NEW
$11,108 Vol.
NEW
$11,108 Vol.
Sep 18, 2026
21°C or below
1%
22°C
12%
23°C
22%
24°C
27%
25°C
37%
26°C
6%
27°C
6%
28°C
2%
29°C
<1%
30°C
<1%
31°C or higher
<1%
25°C 37%
24°C 27%
23°C 22%
22°C 12%
NEW
$11,108 Vol.
NEW
$11,108 Vol.
Sep 18, 2026
21°C or below
$886 Vol.
1%
22°C
$3,167 Vol.
12%
23°C
$2,138 Vol.
22%
24°C
$1,078 Vol.
27%
25°C
$1,721 Vol.
37%
26°C
$964 Vol.
6%
27°C
$334 Vol.
6%
28°C
$388 Vol.
2%
29°C
$153 Vol.
<1%
30°C
$226 Vol.
<1%
31°C or higher
$53 Vol.
<1%
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 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=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.Recent forecasts from agencies and models indicate a rainy, overcast day for Busan on September 18 driven by northeast winds and a moist air mass, which limits solar heating and caps the maximum temperature. Cloud cover and precipitation reduce surface insolation while high humidity and onshore flow moderate daytime warming, keeping highs near seasonal norms rather than allowing typical late-September peaks. Ensemble spreads across guidance place the most likely maximum between 23–25°C, explaining the tight market clustering around those outcomes. Final resolution will hinge on the precise timing and intensity of showers as well as any last adjustments in numerical weather prediction runs before observations are recorded.
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 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=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 16, 2026, 12:58 AM ET
Volume
$11,108End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rkpkResolver
0x69c47De9D...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 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=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.Recent forecasts from agencies and models indicate a rainy, overcast day for Busan on September 18 driven by northeast winds and a moist air mass, which limits solar heating and caps the maximum temperature. Cloud cover and precipitation reduce surface insolation while high humidity and onshore flow moderate daytime warming, keeping highs near seasonal norms rather than allowing typical late-September peaks. Ensemble spreads across guidance place the most likely maximum between 23–25°C, explaining the tight market clustering around those outcomes. Final resolution will hinge on the precise timing and intensity of showers as well as any last adjustments in numerical weather prediction runs before observations are recorded.
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 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=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
$11,108End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rkpkResolver
0x69c47De9D...Recent forecasts from agencies and models indicate a rainy, overcast day for Busan on September 18 driven by northeast winds and a moist air mass, which limits solar heating and caps the maximum temperature. Cloud cover and precipitation reduce surface insolation while high humidity and onshore flow moderate daytime warming, keeping highs near seasonal norms rather than allowing typical late-September peaks. Ensemble spreads across guidance place the most likely maximum between 23–25°C, explaining the tight market clustering around those outcomes. Final resolution will hinge on the precise timing and intensity of showers as well as any last adjustments in numerical weather prediction runs before observations are recorded.
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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