Recent global model consensus from GFS and ECMWF indicates Busan will experience clear to partly cloudy skies and light northeasterly winds on September 23, favoring radiative cooling overnight with minimum temperatures near 19°C. This stable high-pressure pattern aligns with late-September climatology, where coastal moderation from the Korea Strait typically limits extremes. Trader emphasis on the 17°C and 18°C brackets reflects model spread in boundary-layer mixing and exact cloud timing, while elevated odds for 22°C or higher capture any under-forecasted marine influence. Upcoming evening observations and refined 00Z runs will tighten resolution criteria around the official 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?
12°C or below 54%
22°C or higher 53%
17°C 43%
13°C 39%
12°C or below
54%
13°C
39%
14°C
19%
15°C
19%
16°C
24%
17°C
32%
18°C
32%
19°C
20%
20°C
19%
21°C
20%
22°C or higher
53%
12°C or below 54%
22°C or higher 53%
17°C 43%
13°C 39%
12°C or below
54%
13°C
39%
14°C
19%
15°C
19%
16°C
24%
17°C
32%
18°C
32%
19°C
20%
20°C
19%
21°C
20%
22°C or higher
53%
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
Resolution Source
https://www.weather.gov/wrh/timeseries?site=rkpkResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=rkpkResolver
0x69c47De9D...Recent global model consensus from GFS and ECMWF indicates Busan will experience clear to partly cloudy skies and light northeasterly winds on September 23, favoring radiative cooling overnight with minimum temperatures near 19°C. This stable high-pressure pattern aligns with late-September climatology, where coastal moderation from the Korea Strait typically limits extremes. Trader emphasis on the 17°C and 18°C brackets reflects model spread in boundary-layer mixing and exact cloud timing, while elevated odds for 22°C or higher capture any under-forecasted marine influence. Upcoming evening observations and refined 00Z runs will tighten resolution criteria around the official 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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