Recent forecast models for Busan on September 18 show a nighttime low near 22°C under mostly cloudy skies, northeasterly winds of 15–20 km/h, and a 30–40% chance of light rain that reduces radiative cooling. Persistent marine air from the East Sea and limited clear-sky periods keep temperatures from dropping sharply, while daytime heating remains modest around 25–26°C. Official guidance from the Korea Meteorological Administration and ensemble runs align on mild conditions typical for mid-September, with low historical precedent for sub-18°C or above-26°C minima this late in the season. Updated model runs and any shifts in cloud or precipitation timing represent the main variables that could alter the overnight minimum before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Busan on September 18?
Lowest temperature in Busan on September 18?
17°C or below 100%
27°C or higher 100%
21°C 40%
22°C 40%
NEW
NEW
Sep 18, 2026
17°C or below
100%
18°C
39%
19°C
39%
20°C
39%
21°C
23%
22°C
40%
23°C
39%
24°C
39%
25°C
39%
26°C
39%
27°C or higher
100%
17°C or below 100%
27°C or higher 100%
21°C 40%
22°C 40%
NEW
NEW
Sep 18, 2026
17°C or below
$0 Vol.
100%
18°C
$0 Vol.
39%
19°C
$0 Vol.
39%
20°C
$0 Vol.
39%
21°C
$5 Vol.
23%
22°C
$0 Vol.
40%
23°C
$0 Vol.
39%
24°C
$0 Vol.
39%
25°C
$0 Vol.
39%
26°C
$0 Vol.
39%
27°C or higher
$0 Vol.
100%
This market will resolve to the temperature range that contains the lowest 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 lowest 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 forecast models for Busan on September 18 show a nighttime low near 22°C under mostly cloudy skies, northeasterly winds of 15–20 km/h, and a 30–40% chance of light rain that reduces radiative cooling. Persistent marine air from the East Sea and limited clear-sky periods keep temperatures from dropping sharply, while daytime heating remains modest around 25–26°C. Official guidance from the Korea Meteorological Administration and ensemble runs align on mild conditions typical for mid-September, with low historical precedent for sub-18°C or above-26°C minima this late in the season. Updated model runs and any shifts in cloud or precipitation timing represent the main variables that could alter the overnight minimum before resolution.
This market will resolve to the temperature range that contains the lowest 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 lowest 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 lowest 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, 12:31 AM ET
Volume
$5End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rkpkResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest 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 lowest 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 forecast models for Busan on September 18 show a nighttime low near 22°C under mostly cloudy skies, northeasterly winds of 15–20 km/h, and a 30–40% chance of light rain that reduces radiative cooling. Persistent marine air from the East Sea and limited clear-sky periods keep temperatures from dropping sharply, while daytime heating remains modest around 25–26°C. Official guidance from the Korea Meteorological Administration and ensemble runs align on mild conditions typical for mid-September, with low historical precedent for sub-18°C or above-26°C minima this late in the season. Updated model runs and any shifts in cloud or precipitation timing represent the main variables that could alter the overnight minimum before resolution.
This market will resolve to the temperature range that contains the lowest 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 lowest 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 lowest 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
$5End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rkpkResolver
0x69c47De9D...Recent forecast models for Busan on September 18 show a nighttime low near 22°C under mostly cloudy skies, northeasterly winds of 15–20 km/h, and a 30–40% chance of light rain that reduces radiative cooling. Persistent marine air from the East Sea and limited clear-sky periods keep temperatures from dropping sharply, while daytime heating remains modest around 25–26°C. Official guidance from the Korea Meteorological Administration and ensemble runs align on mild conditions typical for mid-September, with low historical precedent for sub-18°C or above-26°C minima this late in the season. Updated model runs and any shifts in cloud or precipitation timing represent the main variables that could alter the overnight minimum before resolution.
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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