Korea Meteorological Administration observations confirm Seoul's highest temperature reached exactly 19°C on May 1, 2026, at the reference station, driving trader consensus to a 100% implied probability for this outcome amid negligible 0.1% odds for 20°C or higher. A persistent cool air mass over the Korean Peninsula suppressed diurnal heating under mostly cloudy skies, with short-range forecast models precisely capturing hourly peaks of 16–19°C and no significant wind or insolation to push beyond. Evening readings at nearby Incheon International Airport fell to 14.4°C by 22:00 KST, solidifying the daily maximum well before midnight resolution. While May climatological averages exceed 22°C, this atypical synoptic pattern minimized upside risk; only an unprecedented data revision or unforecast late surge—both highly improbable—could challenge the positioning.
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 1?
Highest temperature in Seoul on May 1?
19°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$337,155 Vol.
$337,155 Vol.
May 1, 2026
10°C or below
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C or higher
No
19°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$337,155 Vol.
$337,155 Vol.
May 1, 2026
10°C or below
$3,433 Vol.
No
11°C
$745 Vol.
No
12°C
$623 Vol.
No
13°C
$1,815 Vol.
No
14°C
$5,825 Vol.
No
15°C
$7,781 Vol.
No
16°C
$24,008 Vol.
No
17°C
$77,125 Vol.
No
18°C
$85,319 Vol.
No
19°C
$41,754 Vol.
Yes
20°C or higher
$88,727 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 1 May '26.
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.Korea Meteorological Administration observations confirm Seoul's highest temperature reached exactly 19°C on May 1, 2026, at the reference station, driving trader consensus to a 100% implied probability for this outcome amid negligible 0.1% odds for 20°C or higher. A persistent cool air mass over the Korean Peninsula suppressed diurnal heating under mostly cloudy skies, with short-range forecast models precisely capturing hourly peaks of 16–19°C and no significant wind or insolation to push beyond. Evening readings at nearby Incheon International Airport fell to 14.4°C by 22:00 KST, solidifying the daily maximum well before midnight resolution. While May climatological averages exceed 22°C, this atypical synoptic pattern minimized upside risk; only an unprecedented data revision or unforecast late surge—both highly improbable—could challenge the positioning.
This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 1 May '26.
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.
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 29, 2026, 12:05 AM ET
Volume
$337,155End Date
May 1, 2026Market Opened
Apr 29, 2026, 12:05 AM ETResolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSIResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 1 May '26.
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.Korea Meteorological Administration observations confirm Seoul's highest temperature reached exactly 19°C on May 1, 2026, at the reference station, driving trader consensus to a 100% implied probability for this outcome amid negligible 0.1% odds for 20°C or higher. A persistent cool air mass over the Korean Peninsula suppressed diurnal heating under mostly cloudy skies, with short-range forecast models precisely capturing hourly peaks of 16–19°C and no significant wind or insolation to push beyond. Evening readings at nearby Incheon International Airport fell to 14.4°C by 22:00 KST, solidifying the daily maximum well before midnight resolution. While May climatological averages exceed 22°C, this atypical synoptic pattern minimized upside risk; only an unprecedented data revision or unforecast late surge—both highly improbable—could challenge the positioning.
This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 1 May '26.
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.
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.
Volume
$337,155End Date
May 1, 2026Market Opened
Apr 29, 2026, 12:05 AM ETResolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSIResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Korea Meteorological Administration observations confirm Seoul's highest temperature reached exactly 19°C on May 1, 2026, at the reference station, driving trader consensus to a 100% implied probability for this outcome amid negligible 0.1% odds for 20°C or higher. A persistent cool air mass over the Korean Peninsula suppressed diurnal heating under mostly cloudy skies, with short-range forecast models precisely capturing hourly peaks of 16–19°C and no significant wind or insolation to push beyond. Evening readings at nearby Incheon International Airport fell to 14.4°C by 22:00 KST, solidifying the daily maximum well before midnight resolution. While May climatological averages exceed 22°C, this atypical synoptic pattern minimized upside risk; only an unprecedented data revision or unforecast late surge—both highly improbable—could challenge the positioning.
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