Trader consensus on Polymarket assigns a 99.5% implied probability to 9°C as Seoul's highest temperature on March 26, driven by the latest Korea Meteorological Administration (KMA) forecasts and ensemble model runs from ECMWF and GFS, which project cool, stable conditions under a persistent high-pressure ridge and northerly winds. Recent observations show daytime highs lingering around 7–9°C this week amid dry continental air, consistent with late March climatology where Seoul's average maximum is 11°C but skewed lower by frequent cold outbreaks. Historical data indicates rare deviations above 12°C this late in the season. Realistic challenges include unanticipated warm advection from the south, though current model agreement yields under 1% odds; KMA's final hourly updates will confirm ahead of resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seoul on March 26?
Highest temperature in Seoul on March 26?
9°C 99.6%
10°C <1%
11°C <1%
12°C <1%
$713,272 Vol.
$713,272 Vol.
9°C
100%
10°C
<1%
11°C
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C or higher
<1%
9°C 99.6%
10°C <1%
11°C <1%
12°C <1%
$713,272 Vol.
$713,272 Vol.
9°C
100%
10°C
<1%
11°C
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C or higher
<1%
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: Mar 22, 2026, 6:01 AM ET
Resolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSIResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Resolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSIResolver
0x69c47De9D...Trader consensus on Polymarket assigns a 99.5% implied probability to 9°C as Seoul's highest temperature on March 26, driven by the latest Korea Meteorological Administration (KMA) forecasts and ensemble model runs from ECMWF and GFS, which project cool, stable conditions under a persistent high-pressure ridge and northerly winds. Recent observations show daytime highs lingering around 7–9°C this week amid dry continental air, consistent with late March climatology where Seoul's average maximum is 11°C but skewed lower by frequent cold outbreaks. Historical data indicates rare deviations above 12°C this late in the season. Realistic challenges include unanticipated warm advection from the south, though current model agreement yields under 1% odds; KMA's final hourly updates will confirm ahead of resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
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