Persistent high-pressure systems and southerly airflow over the Korean Peninsula, as reported in the latest Korea Meteorological Administration forecasts, are driving daytime warming in Busan toward a peak of 30°C at the official Gimhae International Airport station on May 17. Minimal cloud cover and strong insolation under these conditions align with historical early-May climatology, where coastal highs frequently reach the low 30s amid subtropical ridging. Recent model runs show strong consensus around this value, with limited variance from afternoon wind shifts or localized sea-breeze effects. Final hourly observations through evening will determine exact resolution, though current surface data already support the market’s overwhelming 99.8% implied probability for the 30°C bin.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Busan on May 17?
30°C 99.8%
31°C <1%
23°C or below <1%
24°C <1%
$48,142 Vol.
$48,142 Vol.
23°C or below
<1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C
100%
31°C
<1%
32°C
<1%
33°C or higher
<1%
30°C 99.8%
31°C <1%
23°C or below <1%
24°C <1%
$48,142 Vol.
$48,142 Vol.
23°C or below
<1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C
100%
31°C
<1%
32°C
<1%
33°C or higher
<1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Gimhae Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/kr/busan/RKPK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 15, 2026, 12:05 AM ET
Resolution Source
https://www.wunderground.com/history/daily/kr/busan/RKPKThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Gimhae Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/kr/busan/RKPK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/kr/busan/RKPKPersistent high-pressure systems and southerly airflow over the Korean Peninsula, as reported in the latest Korea Meteorological Administration forecasts, are driving daytime warming in Busan toward a peak of 30°C at the official Gimhae International Airport station on May 17. Minimal cloud cover and strong insolation under these conditions align with historical early-May climatology, where coastal highs frequently reach the low 30s amid subtropical ridging. Recent model runs show strong consensus around this value, with limited variance from afternoon wind shifts or localized sea-breeze effects. Final hourly observations through evening will determine exact resolution, though current surface data already support the market’s overwhelming 99.8% implied probability for the 30°C bin.
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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