Korea Meteorological Administration (KMA) observations and short-range forecasts confirm Seoul's highest temperature on April 17 reached 17°C, with hourly readings peaking at that level amid mostly cloudy skies and a 20% precipitation probability, as displayed in their 18:00 updates. This sharp cooldown follows yesterday's heatwave record of 27.3°C, driven by an incoming frontal system introducing cooler air masses and reduced solar insolation. Ensemble models from ECMWF and GFS align on subdued daytime heating, aligning with April climatological averages around 17°C. Trader consensus reflects this robust observational evidence, though a slim chance remains for late-afternoon clearing to push winds and brief sun exposure toward 18°C before sunset. Final KMA tallies expected soon after midnight.
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 April 17?
Highest temperature in Seoul on April 17?
17°C 100.0%
8°C or below <1%
9°C <1%
10°C <1%
$758,418 Vol.
$758,418 Vol.
Apr 17, 2026
8°C or below
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
Yes
18°C or higher
No
17°C 100.0%
8°C or below <1%
9°C <1%
10°C <1%
$758,418 Vol.
$758,418 Vol.
Apr 17, 2026
8°C or below
$16,702 Vol.
No
9°C
$10,842 Vol.
No
10°C
$5,502 Vol.
No
11°C
$5,084 Vol.
No
12°C
$9,859 Vol.
No
13°C
$18,493 Vol.
No
14°C
$24,126 Vol.
No
15°C
$73,852 Vol.
No
16°C
$118,200 Vol.
No
17°C
$182,050 Vol.
Yes
18°C or higher
$293,707 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 17 Apr '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 (KMA) observations and short-range forecasts confirm Seoul's highest temperature on April 17 reached 17°C, with hourly readings peaking at that level amid mostly cloudy skies and a 20% precipitation probability, as displayed in their 18:00 updates. This sharp cooldown follows yesterday's heatwave record of 27.3°C, driven by an incoming frontal system introducing cooler air masses and reduced solar insolation. Ensemble models from ECMWF and GFS align on subdued daytime heating, aligning with April climatological averages around 17°C. Trader consensus reflects this robust observational evidence, though a slim chance remains for late-afternoon clearing to push winds and brief sun exposure toward 18°C before sunset. Final KMA tallies expected soon after midnight.
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 Apr '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 15, 2026, 12:05 AM ET
Volume
$758,418End Date
Apr 17, 2026Market Opened
Apr 15, 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 17 Apr '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 (KMA) observations and short-range forecasts confirm Seoul's highest temperature on April 17 reached 17°C, with hourly readings peaking at that level amid mostly cloudy skies and a 20% precipitation probability, as displayed in their 18:00 updates. This sharp cooldown follows yesterday's heatwave record of 27.3°C, driven by an incoming frontal system introducing cooler air masses and reduced solar insolation. Ensemble models from ECMWF and GFS align on subdued daytime heating, aligning with April climatological averages around 17°C. Trader consensus reflects this robust observational evidence, though a slim chance remains for late-afternoon clearing to push winds and brief sun exposure toward 18°C before sunset. Final KMA tallies expected soon after midnight.
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 Apr '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
$758,418End Date
Apr 17, 2026Market Opened
Apr 15, 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 (KMA) observations and short-range forecasts confirm Seoul's highest temperature on April 17 reached 17°C, with hourly readings peaking at that level amid mostly cloudy skies and a 20% precipitation probability, as displayed in their 18:00 updates. This sharp cooldown follows yesterday's heatwave record of 27.3°C, driven by an incoming frontal system introducing cooler air masses and reduced solar insolation. Ensemble models from ECMWF and GFS align on subdued daytime heating, aligning with April climatological averages around 17°C. Trader consensus reflects this robust observational evidence, though a slim chance remains for late-afternoon clearing to push winds and brief sun exposure toward 18°C before sunset. Final KMA tallies expected soon after midnight.
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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