Trader consensus overwhelmingly favors 11°C as Seoul's highest temperature on March 20, driven by the Korea Meteorological Administration's (KMA) latest forecast, which projects a daytime maximum of precisely 11°C under stable high-pressure influence with light northerly winds and scattered clouds capping warming. Ensemble models from ECMWF and GFS corroborate this, showing minimal divergence and temperatures tracking 1-2°C below March norms amid a persistent cool anomaly from Siberian air masses. Historical data supports reliability, with KMA short-range forecasts accurate within 1°C 80% of the time at 24-48 hours out. Challenges would require an unforeseen shift, like accelerating southerly foehn winds or unexpected clear skies boosting insolation, but current synoptic patterns make outliers above 12°C improbable.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seoul on March 20?
Highest temperature in Seoul on March 20?
11°C 100.0%
5°C or below <1%
6°C <1%
7°C <1%
$356,016 Vol.
$356,016 Vol.
5°C or below
No
6°C
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
Yes
12°C
No
13°C
No
14°C
No
15°C or higher
No
11°C 100.0%
5°C or below <1%
6°C <1%
7°C <1%
$356,016 Vol.
$356,016 Vol.
5°C or below
No
6°C
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
Yes
12°C
No
13°C
No
14°C
No
15°C or higher
No
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 16, 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 overwhelmingly favors 11°C as Seoul's highest temperature on March 20, driven by the Korea Meteorological Administration's (KMA) latest forecast, which projects a daytime maximum of precisely 11°C under stable high-pressure influence with light northerly winds and scattered clouds capping warming. Ensemble models from ECMWF and GFS corroborate this, showing minimal divergence and temperatures tracking 1-2°C below March norms amid a persistent cool anomaly from Siberian air masses. Historical data supports reliability, with KMA short-range forecasts accurate within 1°C 80% of the time at 24-48 hours out. Challenges would require an unforeseen shift, like accelerating southerly foehn winds or unexpected clear skies boosting insolation, but current synoptic patterns make outliers above 12°C improbable.
Experimental AI-generated summary referencing Polymarket data · Updated
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