**Forecast consensus points to an overnight low near 19°C under clear to partly cloudy skies and moderate northeasterly flow.** Multiple models and official guidance, including Korea Meteorological Administration observations and short-range forecasts, show Busan experiencing stable high pressure with light-to-moderate NE winds of 8–15 mph (roughly 13–24 km/h) through the night of September 20–21. These conditions favor efficient radiational cooling over land but are tempered by the city’s coastal location and marine influence, limiting the drop. **Trader sentiment clusters tightly around 17–18°C because this range sits within typical 1–2°C model uncertainty for a single-night minimum.** Clear skies promote stronger cooling than partly cloudy scenarios, while wind speed and direction can shift the low by a degree or two; recent model runs show minor spread between 18–20°C equivalents. Lower outcomes (14°C or below) receive less weight absent any approaching front or increased cloud cover that would suppress cooling, while higher readings (19°C+) remain possible if winds stay breezy or marine air mixes more effectively. Historical late-September climatology for Busan places average lows near 18–20°C, providing additional context for the current pricing. New KMA updates or evening observations on September 20 will be the next key inputs 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 21?
Lowest temperature in Busan on September 21?
17°C 92%
13°C or below 90%
14°C 90%
15°C 90%
NEW
NEW
Sep 21, 2026
13°C or below
90%
14°C
90%
15°C
90%
16°C
90%
17°C
92%
18°C
54%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C or higher
<1%
17°C 92%
13°C or below 90%
14°C 90%
15°C 90%
NEW
NEW
Sep 21, 2026
13°C or below
$0 Vol.
90%
14°C
$0 Vol.
90%
15°C
$0 Vol.
90%
16°C
$0 Vol.
90%
17°C
$53 Vol.
92%
18°C
$153 Vol.
54%
19°C
$352 Vol.
<1%
20°C
$31 Vol.
<1%
21°C
$31 Vol.
<1%
22°C
$36 Vol.
<1%
23°C or higher
$31 Vol.
<1%
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 21 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.**Forecast consensus points to an overnight low near 19°C under clear to partly cloudy skies and moderate northeasterly flow.** Multiple models and official guidance, including Korea Meteorological Administration observations and short-range forecasts, show Busan experiencing stable high pressure with light-to-moderate NE winds of 8–15 mph (roughly 13–24 km/h) through the night of September 20–21. These conditions favor efficient radiational cooling over land but are tempered by the city’s coastal location and marine influence, limiting the drop.
**Trader sentiment clusters tightly around 17–18°C because this range sits within typical 1–2°C model uncertainty for a single-night minimum.** Clear skies promote stronger cooling than partly cloudy scenarios, while wind speed and direction can shift the low by a degree or two; recent model runs show minor spread between 18–20°C equivalents. Lower outcomes (14°C or below) receive less weight absent any approaching front or increased cloud cover that would suppress cooling, while higher readings (19°C+) remain possible if winds stay breezy or marine air mixes more effectively. Historical late-September climatology for Busan places average lows near 18–20°C, providing additional context for the current pricing. New KMA updates or evening observations on September 20 will be the next key inputs 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 21 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 19, 2026, 12:31 AM ET
Volume
$687End Date
Sep 21, 2026Market Opened
Sep 19, 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 21 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.**Forecast consensus points to an overnight low near 19°C under clear to partly cloudy skies and moderate northeasterly flow.** Multiple models and official guidance, including Korea Meteorological Administration observations and short-range forecasts, show Busan experiencing stable high pressure with light-to-moderate NE winds of 8–15 mph (roughly 13–24 km/h) through the night of September 20–21. These conditions favor efficient radiational cooling over land but are tempered by the city’s coastal location and marine influence, limiting the drop.
**Trader sentiment clusters tightly around 17–18°C because this range sits within typical 1–2°C model uncertainty for a single-night minimum.** Clear skies promote stronger cooling than partly cloudy scenarios, while wind speed and direction can shift the low by a degree or two; recent model runs show minor spread between 18–20°C equivalents. Lower outcomes (14°C or below) receive less weight absent any approaching front or increased cloud cover that would suppress cooling, while higher readings (19°C+) remain possible if winds stay breezy or marine air mixes more effectively. Historical late-September climatology for Busan places average lows near 18–20°C, providing additional context for the current pricing. New KMA updates or evening observations on September 20 will be the next key inputs 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 21 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
$687End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=rkpkResolver
0x69c47De9D...**Forecast consensus points to an overnight low near 19°C under clear to partly cloudy skies and moderate northeasterly flow.** Multiple models and official guidance, including Korea Meteorological Administration observations and short-range forecasts, show Busan experiencing stable high pressure with light-to-moderate NE winds of 8–15 mph (roughly 13–24 km/h) through the night of September 20–21. These conditions favor efficient radiational cooling over land but are tempered by the city’s coastal location and marine influence, limiting the drop. **Trader sentiment clusters tightly around 17–18°C because this range sits within typical 1–2°C model uncertainty for a single-night minimum.** Clear skies promote stronger cooling than partly cloudy scenarios, while wind speed and direction can shift the low by a degree or two; recent model runs show minor spread between 18–20°C equivalents. Lower outcomes (14°C or below) receive less weight absent any approaching front or increased cloud cover that would suppress cooling, while higher readings (19°C+) remain possible if winds stay breezy or marine air mixes more effectively. Historical late-September climatology for Busan places average lows near 18–20°C, providing additional context for the current pricing. New KMA updates or evening observations on September 20 will be the next key inputs 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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