Recent numerical weather prediction runs highlight uncertainty in Busan’s overnight minimum on September 23, with model spreads in radiative cooling under variable cloud cover and northeasterly advection from the East Sea. Current guidance points to partly cloudy conditions and light winds that could allow lows near 16–19 °C, yet small shifts in high pressure positioning or increased marine layer moisture might push readings several degrees lower or sustain them above 20 °C. Historical late-September climatology for Busan shows typical minima around 18 °C, placing the current market balance between sub-13 °C and 22 °C-plus outcomes squarely within forecast uncertainty ranges. Updated KMA, ECMWF, and GFS runs over the next 24–48 hours will likely tighten resolution criteria for the daily low.
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 23?
Lowest temperature in Busan on September 23?
12°C or below 100%
22°C or higher 98%
17°C 40%
18°C 40%
NEW
NEW
Sep 23, 2026
12°C or below
100%
13°C
39%
14°C
39%
15°C
39%
16°C
39%
17°C
40%
18°C
40%
19°C
39%
20°C
39%
21°C
39%
22°C or higher
98%
12°C or below 100%
22°C or higher 98%
17°C 40%
18°C 40%
NEW
NEW
Sep 23, 2026
12°C or below
$0 Vol.
100%
13°C
$0 Vol.
39%
14°C
$0 Vol.
39%
15°C
$0 Vol.
39%
16°C
$0 Vol.
39%
17°C
$0 Vol.
40%
18°C
$0 Vol.
40%
19°C
$0 Vol.
39%
20°C
$0 Vol.
39%
21°C
$0 Vol.
39%
22°C or higher
$0 Vol.
98%
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 23 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 numerical weather prediction runs highlight uncertainty in Busan’s overnight minimum on September 23, with model spreads in radiative cooling under variable cloud cover and northeasterly advection from the East Sea. Current guidance points to partly cloudy conditions and light winds that could allow lows near 16–19 °C, yet small shifts in high pressure positioning or increased marine layer moisture might push readings several degrees lower or sustain them above 20 °C. Historical late-September climatology for Busan shows typical minima around 18 °C, placing the current market balance between sub-13 °C and 22 °C-plus outcomes squarely within forecast uncertainty ranges. Updated KMA, ECMWF, and GFS runs over the next 24–48 hours will likely tighten resolution criteria for the daily low.
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 23 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 21, 2026, 12:31 AM ET
Volume
$0End Date
Sep 23, 2026Market Opened
Sep 21, 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 23 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 numerical weather prediction runs highlight uncertainty in Busan’s overnight minimum on September 23, with model spreads in radiative cooling under variable cloud cover and northeasterly advection from the East Sea. Current guidance points to partly cloudy conditions and light winds that could allow lows near 16–19 °C, yet small shifts in high pressure positioning or increased marine layer moisture might push readings several degrees lower or sustain them above 20 °C. Historical late-September climatology for Busan shows typical minima around 18 °C, placing the current market balance between sub-13 °C and 22 °C-plus outcomes squarely within forecast uncertainty ranges. Updated KMA, ECMWF, and GFS runs over the next 24–48 hours will likely tighten resolution criteria for the daily low.
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 23 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
$0End Date
Sep 23, 2026Market Opened
Sep 21, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rkpkResolver
0x69c47De9D...Recent numerical weather prediction runs highlight uncertainty in Busan’s overnight minimum on September 23, with model spreads in radiative cooling under variable cloud cover and northeasterly advection from the East Sea. Current guidance points to partly cloudy conditions and light winds that could allow lows near 16–19 °C, yet small shifts in high pressure positioning or increased marine layer moisture might push readings several degrees lower or sustain them above 20 °C. Historical late-September climatology for Busan shows typical minima around 18 °C, placing the current market balance between sub-13 °C and 22 °C-plus outcomes squarely within forecast uncertainty ranges. Updated KMA, ECMWF, and GFS runs over the next 24–48 hours will likely tighten resolution criteria for the daily low.
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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