Latest Korea Meteorological Administration forecasts position Seoul’s May 17 maximum near 24–25 °C under southerly warm advection beneath a strengthening high-pressure ridge. This places the market’s leading implied probabilities—split nearly evenly between the 25 °C and 26 °C-or-higher buckets—squarely in the range of normal May variability. Key differentiating factors include the precise timing of an approaching short-wave trough, which could enhance mixing and cap afternoon peaks, versus sustained clear skies that would allow greater boundary-layer warming. Official resolution hinges on the Incheon International Airport station reading shortly after local sunset, where even a 1–2 °C shift from cloud cover or wind changes can separate the closely contested outcomes.
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 39%
26°C or higher 31%
24°C 22%
23°C 13%
NEW
$89,635 Vol.
NEW
$89,635 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
2%
23°C
13%
24°C
22%
25°C
39%
26°C or higher
31%
25°C 39%
26°C or higher 31%
24°C 22%
23°C 13%
NEW
$89,635 Vol.
NEW
$89,635 Vol.
May 17, 2026
16°C or below
$3,492 Vol.
<1%
17°C
$4,873 Vol.
<1%
18°C
$8,118 Vol.
<1%
19°C
$6,657 Vol.
<1%
20°C
$9,518 Vol.
1%
21°C
$11,174 Vol.
1%
22°C
$11,042 Vol.
2%
23°C
$8,610 Vol.
13%
24°C
$5,772 Vol.
22%
25°C
$7,437 Vol.
39%
26°C or higher
$13,566 Vol.
31%
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.Latest Korea Meteorological Administration forecasts position Seoul’s May 17 maximum near 24–25 °C under southerly warm advection beneath a strengthening high-pressure ridge. This places the market’s leading implied probabilities—split nearly evenly between the 25 °C and 26 °C-or-higher buckets—squarely in the range of normal May variability. Key differentiating factors include the precise timing of an approaching short-wave trough, which could enhance mixing and cap afternoon peaks, versus sustained clear skies that would allow greater boundary-layer warming. Official resolution hinges on the Incheon International Airport station reading shortly after local sunset, where even a 1–2 °C shift from cloud cover or wind changes can separate the closely contested outcomes.
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
$89,635End 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.Latest Korea Meteorological Administration forecasts position Seoul’s May 17 maximum near 24–25 °C under southerly warm advection beneath a strengthening high-pressure ridge. This places the market’s leading implied probabilities—split nearly evenly between the 25 °C and 26 °C-or-higher buckets—squarely in the range of normal May variability. Key differentiating factors include the precise timing of an approaching short-wave trough, which could enhance mixing and cap afternoon peaks, versus sustained clear skies that would allow greater boundary-layer warming. Official resolution hinges on the Incheon International Airport station reading shortly after local sunset, where even a 1–2 °C shift from cloud cover or wind changes can separate the closely contested outcomes.
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
$89,635End Date
May 17, 2026Market Opened
May 15, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSILatest Korea Meteorological Administration forecasts position Seoul’s May 17 maximum near 24–25 °C under southerly warm advection beneath a strengthening high-pressure ridge. This places the market’s leading implied probabilities—split nearly evenly between the 25 °C and 26 °C-or-higher buckets—squarely in the range of normal May variability. Key differentiating factors include the precise timing of an approaching short-wave trough, which could enhance mixing and cap afternoon peaks, versus sustained clear skies that would allow greater boundary-layer warming. Official resolution hinges on the Incheon International Airport station reading shortly after local sunset, where even a 1–2 °C shift from cloud cover or wind changes can separate the closely contested outcomes.
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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