Current forecasts from multiple models point to a daily minimum near 21°C in Busan on September 15, driven by northeast winds, variable cloud cover, and a modest chance of light showers that limit radiative cooling overnight. This places the outcome squarely between the closely matched market leaders—25°C or higher versus 15°C or below—reflecting trader divergence over whether high pressure maintains warmer conditions or a transient cool surge lowers readings further. Historical September climatology shows average lows around 20–22°C, so deviations hinge on precise timing of any frontal passage or clearer skies. Updated model runs and official Korea Meteorological Administration guidance over the next 48 hours will likely narrow the spread as landfall or steering patterns clarify.
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 15?
25°C or higher 97%
15°C or below 95%
20°C 21%
21°C 21%
15°C or below
95%
16°C
17%
17°C
20%
18°C
20%
19°C
20%
20°C
21%
21°C
21%
22°C
20%
23°C
20%
24°C
17%
25°C or higher
97%
25°C or higher 97%
15°C or below 95%
20°C 21%
21°C 21%
15°C or below
95%
16°C
17%
17°C
20%
18°C
20%
19°C
20%
20°C
21%
21°C
21%
22°C
20%
23°C
20%
24°C
17%
25°C or higher
97%
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 13, 2026, 1:32 PM 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...Current forecasts from multiple models point to a daily minimum near 21°C in Busan on September 15, driven by northeast winds, variable cloud cover, and a modest chance of light showers that limit radiative cooling overnight. This places the outcome squarely between the closely matched market leaders—25°C or higher versus 15°C or below—reflecting trader divergence over whether high pressure maintains warmer conditions or a transient cool surge lowers readings further. Historical September climatology shows average lows around 20–22°C, so deviations hinge on precise timing of any frontal passage or clearer skies. Updated model runs and official Korea Meteorological Administration guidance over the next 48 hours will likely narrow the spread as landfall or steering patterns clarify.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions