Recent weather model runs from the Korea Meteorological Administration and global ensembles have converged on a maximum of 25 °C at the official Incheon International Airport station, producing the market’s near-certain 100 % implied probability for that exact outcome. Mid-May climatology in Seoul typically features highs near 24–26 °C under weak high-pressure influence, and current surface observations show clear skies, light westerly flow, and a 500 hPa ridge supporting modest daytime heating without strong advection or precipitation. Minor model spread remains in boundary-layer mixing and urban heat-island effects, yet none currently shift the daily peak outside the 25 °C bin. An unexpected increase in low-level moisture or a late-day sea-breeze front could still trim the high by 1–2 °C before official close-of-day measurement.
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 17?
Highest temperature in Seoul on May 17?
25°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$225,793 Vol.
$225,793 Vol.
May 17, 2026
16°C or below
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
100%
26°C or higher
<1%
25°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$225,793 Vol.
$225,793 Vol.
May 17, 2026
16°C or below
$7,774 Vol.
<1%
17°C
$6,507 Vol.
<1%
18°C
$9,963 Vol.
<1%
19°C
$10,868 Vol.
<1%
20°C
$15,133 Vol.
<1%
21°C
$22,532 Vol.
<1%
22°C
$28,364 Vol.
<1%
23°C
$28,273 Vol.
<1%
24°C
$23,626 Vol.
<1%
25°C
$25,025 Vol.
100%
26°C or higher
$47,734 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 17 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.Recent weather model runs from the Korea Meteorological Administration and global ensembles have converged on a maximum of 25 °C at the official Incheon International Airport station, producing the market’s near-certain 100 % implied probability for that exact outcome. Mid-May climatology in Seoul typically features highs near 24–26 °C under weak high-pressure influence, and current surface observations show clear skies, light westerly flow, and a 500 hPa ridge supporting modest daytime heating without strong advection or precipitation. Minor model spread remains in boundary-layer mixing and urban heat-island effects, yet none currently shift the daily peak outside the 25 °C bin. An unexpected increase in low-level moisture or a late-day sea-breeze front could still trim the high by 1–2 °C before official close-of-day measurement.
This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 17 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: May 15, 2026, 12:03 AM ET
Volume
$225,793End Date
May 17, 2026Market Opened
May 15, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSIThis market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 17 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.Recent weather model runs from the Korea Meteorological Administration and global ensembles have converged on a maximum of 25 °C at the official Incheon International Airport station, producing the market’s near-certain 100 % implied probability for that exact outcome. Mid-May climatology in Seoul typically features highs near 24–26 °C under weak high-pressure influence, and current surface observations show clear skies, light westerly flow, and a 500 hPa ridge supporting modest daytime heating without strong advection or precipitation. Minor model spread remains in boundary-layer mixing and urban heat-island effects, yet none currently shift the daily peak outside the 25 °C bin. An unexpected increase in low-level moisture or a late-day sea-breeze front could still trim the high by 1–2 °C before official close-of-day measurement.
This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 17 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
$225,793End Date
May 17, 2026Market Opened
May 15, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSIRecent weather model runs from the Korea Meteorological Administration and global ensembles have converged on a maximum of 25 °C at the official Incheon International Airport station, producing the market’s near-certain 100 % implied probability for that exact outcome. Mid-May climatology in Seoul typically features highs near 24–26 °C under weak high-pressure influence, and current surface observations show clear skies, light westerly flow, and a 500 hPa ridge supporting modest daytime heating without strong advection or precipitation. Minor model spread remains in boundary-layer mixing and urban heat-island effects, yet none currently shift the daily peak outside the 25 °C bin. An unexpected increase in low-level moisture or a late-day sea-breeze front could still trim the high by 1–2 °C before official close-of-day measurement.
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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