Korea Meteorological Administration (KMA) short-term forecasts project a Seoul daytime high of 25-26°C on April 24 under a persistent high-pressure ridge delivering clear skies, light southerly winds, and strong solar heating, with morning observations already surpassing 21°C amid an unseasonal spring heatwave 6-8°C above the April climatological average of 18°C. This observational data and model consensus—showing minimal spread across ECMWF and GFS ensembles—have locked trader sentiment at unanimous implied probability for 21°C or higher, reflecting urban heat amplification in the Seoul basin. Realistic challenges include unexpected afternoon cloud cover or a sudden frontal boundary, though KMA hourly updates indicate low risk as the peak window nears. Final resolution awaits official KMA Seoul station daily maximum.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Seoul on April 24?
21°C or higher 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$219,562 Vol.
$219,562 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C or higher
Yes
21°C or higher 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$219,562 Vol.
$219,562 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C or higher
Yes
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 Incheon Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/kr/incheon/RKSI.
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 22, 2026, 12:09 AM ET
Resolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSIResolver
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 Incheon Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/kr/incheon/RKSI.
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/incheon/RKSIResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Korea Meteorological Administration (KMA) short-term forecasts project a Seoul daytime high of 25-26°C on April 24 under a persistent high-pressure ridge delivering clear skies, light southerly winds, and strong solar heating, with morning observations already surpassing 21°C amid an unseasonal spring heatwave 6-8°C above the April climatological average of 18°C. This observational data and model consensus—showing minimal spread across ECMWF and GFS ensembles—have locked trader sentiment at unanimous implied probability for 21°C or higher, reflecting urban heat amplification in the Seoul basin. Realistic challenges include unexpected afternoon cloud cover or a sudden frontal boundary, though KMA hourly updates indicate low risk as the peak window nears. Final resolution awaits official KMA Seoul station daily maximum.
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