Recent meteorological forecasts indicate a strong likelihood of peak temperatures reaching or exceeding 25°C in Seoul on May 18, driven by a warm air mass advected from the south under high-pressure dominance and clear skies that enhance daytime solar heating. Official guidance from the Korea Meteorological Administration highlights daytime highs potentially climbing into the upper 20s Celsius, consistent with late-spring climatological trends where average May maxima hover near 23°C but can spike several degrees higher amid favorable synoptic patterns. Model consensus shows limited variability in this outlook, with minimal precipitation expected to moderate conditions, supporting the market's heavy weighting toward warmer outcomes while underscoring the narrow window for any last-minute shifts from evolving upper-level dynamics.
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 18?
Highest temperature in Seoul on May 18?
25°C or higher 79%
24°C 20%
22°C 1.0%
23°C <1%
NEW
$81,944 Vol.
NEW
$81,944 Vol.
May 18, 2026
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
1%
23°C
1%
24°C
20%
25°C or higher
79%
25°C or higher 79%
24°C 20%
22°C 1.0%
23°C <1%
NEW
$81,944 Vol.
NEW
$81,944 Vol.
May 18, 2026
15°C or below
$12,932 Vol.
<1%
16°C
$5,911 Vol.
<1%
17°C
$5,706 Vol.
<1%
18°C
$8,500 Vol.
<1%
19°C
$4,641 Vol.
<1%
20°C
$3,445 Vol.
<1%
21°C
$9,398 Vol.
<1%
22°C
$8,081 Vol.
1%
23°C
$7,604 Vol.
1%
24°C
$4,264 Vol.
20%
25°C or higher
$11,578 Vol.
79%
This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 18 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 meteorological forecasts indicate a strong likelihood of peak temperatures reaching or exceeding 25°C in Seoul on May 18, driven by a warm air mass advected from the south under high-pressure dominance and clear skies that enhance daytime solar heating. Official guidance from the Korea Meteorological Administration highlights daytime highs potentially climbing into the upper 20s Celsius, consistent with late-spring climatological trends where average May maxima hover near 23°C but can spike several degrees higher amid favorable synoptic patterns. Model consensus shows limited variability in this outlook, with minimal precipitation expected to moderate conditions, supporting the market's heavy weighting toward warmer outcomes while underscoring the narrow window for any last-minute shifts from evolving upper-level dynamics.
This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 18 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 16, 2026, 12:03 AM ET
Volume
$81,944End Date
May 18, 2026Market Opened
May 16, 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 18 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 meteorological forecasts indicate a strong likelihood of peak temperatures reaching or exceeding 25°C in Seoul on May 18, driven by a warm air mass advected from the south under high-pressure dominance and clear skies that enhance daytime solar heating. Official guidance from the Korea Meteorological Administration highlights daytime highs potentially climbing into the upper 20s Celsius, consistent with late-spring climatological trends where average May maxima hover near 23°C but can spike several degrees higher amid favorable synoptic patterns. Model consensus shows limited variability in this outlook, with minimal precipitation expected to moderate conditions, supporting the market's heavy weighting toward warmer outcomes while underscoring the narrow window for any last-minute shifts from evolving upper-level dynamics.
This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 18 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
$81,944End Date
May 18, 2026Market Opened
May 16, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSIRecent meteorological forecasts indicate a strong likelihood of peak temperatures reaching or exceeding 25°C in Seoul on May 18, driven by a warm air mass advected from the south under high-pressure dominance and clear skies that enhance daytime solar heating. Official guidance from the Korea Meteorological Administration highlights daytime highs potentially climbing into the upper 20s Celsius, consistent with late-spring climatological trends where average May maxima hover near 23°C but can spike several degrees higher amid favorable synoptic patterns. Model consensus shows limited variability in this outlook, with minimal precipitation expected to moderate conditions, supporting the market's heavy weighting toward warmer outcomes while underscoring the narrow window for any last-minute shifts from evolving upper-level dynamics.
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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