Traders assign the highest implied probabilities to peak temperatures of 24–25°C in Busan on September 18 because short-range ensemble forecasts from regional and global models show a moderating maritime air mass with light southerly flow and sea surface temperatures near 24–25°C limiting daytime heating. Closely matched outcomes reflect genuine uncertainty in cloud cover, boundary-layer mixing, and the precise timing of any weak frontal passage that could alter maximum readings by 1–2°C. Historical mid-September climatology for the coastal city centers near 26°C, yet current model consensus favors slightly cooler values amid higher moisture and reduced insolation. Korea Meteorological Administration updates and refined model runs through September 17 will provide the next key data points for traders.
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 40%
24°C 30%
23°C 22%
26°C 15%
NEW
NEW
Sep 18, 2026
21°C or below
1%
22°C
14%
23°C
22%
24°C
30%
25°C
30%
26°C
15%
27°C
6%
28°C
4%
29°C
2%
30°C
1%
31°C or higher
<1%
25°C 40%
24°C 30%
23°C 22%
26°C 15%
NEW
NEW
Sep 18, 2026
21°C or below
$62 Vol.
1%
22°C
$2,346 Vol.
14%
23°C
$610 Vol.
22%
24°C
$0 Vol.
30%
25°C
$5 Vol.
30%
26°C
$3 Vol.
15%
27°C
$0 Vol.
6%
28°C
$65 Vol.
4%
29°C
$0 Vol.
2%
30°C
$57 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.Traders assign the highest implied probabilities to peak temperatures of 24–25°C in Busan on September 18 because short-range ensemble forecasts from regional and global models show a moderating maritime air mass with light southerly flow and sea surface temperatures near 24–25°C limiting daytime heating. Closely matched outcomes reflect genuine uncertainty in cloud cover, boundary-layer mixing, and the precise timing of any weak frontal passage that could alter maximum readings by 1–2°C. Historical mid-September climatology for the coastal city centers near 26°C, yet current model consensus favors slightly cooler values amid higher moisture and reduced insolation. Korea Meteorological Administration updates and refined model runs through September 17 will provide the next key data points for traders.
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
$3,201End 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.Traders assign the highest implied probabilities to peak temperatures of 24–25°C in Busan on September 18 because short-range ensemble forecasts from regional and global models show a moderating maritime air mass with light southerly flow and sea surface temperatures near 24–25°C limiting daytime heating. Closely matched outcomes reflect genuine uncertainty in cloud cover, boundary-layer mixing, and the precise timing of any weak frontal passage that could alter maximum readings by 1–2°C. Historical mid-September climatology for the coastal city centers near 26°C, yet current model consensus favors slightly cooler values amid higher moisture and reduced insolation. Korea Meteorological Administration updates and refined model runs through September 17 will provide the next key data points for traders.
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
$3,201End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rkpkResolver
0x69c47De9D...Traders assign the highest implied probabilities to peak temperatures of 24–25°C in Busan on September 18 because short-range ensemble forecasts from regional and global models show a moderating maritime air mass with light southerly flow and sea surface temperatures near 24–25°C limiting daytime heating. Closely matched outcomes reflect genuine uncertainty in cloud cover, boundary-layer mixing, and the precise timing of any weak frontal passage that could alter maximum readings by 1–2°C. Historical mid-September climatology for the coastal city centers near 26°C, yet current model consensus favors slightly cooler values amid higher moisture and reduced insolation. Korea Meteorological Administration updates and refined model runs through September 17 will provide the next key data points for traders.
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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