Korea Meteorological Administration observations from Seoul's central station confirm the highest temperature on May 12, 2026, reached exactly 21°C around midday, driving trader consensus to 99.7% on this outcome amid thin remaining liquidity on 22°C or higher. Short-range forecast models from ECMWF and GFS ensembles had converged on this cap 24-48 hours prior, citing westerly winds, partial cloud cover limiting solar heating, and typical mid-May climatological highs averaging 22°C but suppressed by synoptic patterns. Historical May data shows similar diurnal peaks under these conditions. Revision would require rare data correction or station-specific anomaly, improbable given KMA's rigorous automated surface observing system measurements. Final resolution awaits official daily bulletin.
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 May 12?
21°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$256,765 Vol.
$256,765 Vol.
12°C or below
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
Yes
22°C or higher
No
21°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$256,765 Vol.
$256,765 Vol.
12°C or below
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
Yes
22°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: May 10, 2026, 12:19 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 observations from Seoul's central station confirm the highest temperature on May 12, 2026, reached exactly 21°C around midday, driving trader consensus to 99.7% on this outcome amid thin remaining liquidity on 22°C or higher. Short-range forecast models from ECMWF and GFS ensembles had converged on this cap 24-48 hours prior, citing westerly winds, partial cloud cover limiting solar heating, and typical mid-May climatological highs averaging 22°C but suppressed by synoptic patterns. Historical May data shows similar diurnal peaks under these conditions. Revision would require rare data correction or station-specific anomaly, improbable given KMA's rigorous automated surface observing system measurements. Final resolution awaits official daily bulletin.
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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