This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section. This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 14 Aug '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Incheon Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source. 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. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Recent KMA short-range guidance showing a 34°C maximum under mostly cloudy skies with 20% precipitation probability for Incheon/Seoul on August 14 has set the baseline, yet trader positioning clusters tightly on 30–31°C because ensemble models diverge on the timing and extent of increased cloud cover and isolated convection that can cap insolation and suppress peak readings by 2–3°C. This uncertainty is amplified by the recent heatwave’s gradual moderation, with earlier August records above 39°C giving way to more variable steering patterns and higher boundary-layer moisture. Historical August climatology places typical highs near 29–31°C, so the narrow 30–31°C bracket captures the highest-probability outcome under current guidance while acknowledging forecast spread ahead of final observational data.