Official observations from the Korea Meteorological Administration (KMA) at Gimhae International Airport—the market's designated resolution station—confirm Busan's highest temperature reached exactly 25°C during midday hours on April 19, driving trader consensus to a 100% implied probability for this outcome. Clear skies and light southerly winds enabled a standard diurnal heating cycle, peaking before evening cooldown to 19°C by 21:00 local time, consistent with KMA's latest short-range forecast models showing limited intensification potential amid seasonal norms (April averages ~18–19°C highs). This positioning reflects verified hourly data with no exceedances recorded. Realistic challenges include post-day quality control revisions uncovering a higher sensor reading or minor measurement discrepancies, though KMA protocols render these highly unlikely; final daily summaries expected within 24 hours.
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 April 19?
25°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$114,449 Vol.
$114,449 Vol.
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
Yes
26°C
No
27°C or higher
No
25°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$114,449 Vol.
$114,449 Vol.
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
Yes
26°C
No
27°C or higher
No
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: Apr 17, 2026, 12:41 AM ET
Resolution Source
https://www.wunderground.com/history/daily/kr/busan/RKPKResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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.
Resolution Source
https://www.wunderground.com/history/daily/kr/busan/RKPKResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from the Korea Meteorological Administration (KMA) at Gimhae International Airport—the market's designated resolution station—confirm Busan's highest temperature reached exactly 25°C during midday hours on April 19, driving trader consensus to a 100% implied probability for this outcome. Clear skies and light southerly winds enabled a standard diurnal heating cycle, peaking before evening cooldown to 19°C by 21:00 local time, consistent with KMA's latest short-range forecast models showing limited intensification potential amid seasonal norms (April averages ~18–19°C highs). This positioning reflects verified hourly data with no exceedances recorded. Realistic challenges include post-day quality control revisions uncovering a higher sensor reading or minor measurement discrepancies, though KMA protocols render these highly unlikely; final daily summaries expected within 24 hours.
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