Korea Meteorological Administration (KMA) observations from Seoul's official weather station confirm the daily maximum temperature reached exactly 20°C this afternoon under a high-pressure ridge delivering mostly clear skies and light winds, aligning with trader consensus at virtually 100% implied probability for this outcome. This peak occurred amid broader spring warming trends, where April highs typically average 18–20°C, though recent days saw variability with April 24 exceeding 21°C. Evening temperatures have since dropped to around 17°C with continued clear conditions and radiative cooling, eliminating realistic potential for 21°C or higher. Only an unprecedented late-day heat burst or data revision by KMA—both highly improbable given current atmospheric stability and measurement protocols—could challenge this positioning, with final resolution pending official daily summary.
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 25?
20°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$610,715 Vol.
$610,715 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
Yes
21°C or higher
No
20°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$610,715 Vol.
$610,715 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
Yes
21°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 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 23, 2026, 12:07 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) observations from Seoul's official weather station confirm the daily maximum temperature reached exactly 20°C this afternoon under a high-pressure ridge delivering mostly clear skies and light winds, aligning with trader consensus at virtually 100% implied probability for this outcome. This peak occurred amid broader spring warming trends, where April highs typically average 18–20°C, though recent days saw variability with April 24 exceeding 21°C. Evening temperatures have since dropped to around 17°C with continued clear conditions and radiative cooling, eliminating realistic potential for 21°C or higher. Only an unprecedented late-day heat burst or data revision by KMA—both highly improbable given current atmospheric stability and measurement protocols—could challenge this positioning, with final resolution pending official daily summary.
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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