Trader sentiment clusters tightly around 8–10°C for Seoul's March 18 high temperature, with 9°C leading at 28% implied probability, driven by the Korea Meteorological Administration's (KMA) latest short-range forecast projecting a daytime peak near 9°C amid mild southerly breezes and partial cloud cover. Global models like ECMWF and GFS ensembles show a narrow spread of 1–2°C uncertainty, differentiated by subtle shifts in upper-air trough positioning and low-level moisture advection, which could suppress peaks to 8°C under thicker clouds or nudge to 10°C with clearer skies. Historical March averages hover at 10°C, but recent cool anomalies from Siberian air masses temper expectations, with KMA's next update pivotal for resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seoul on March 18?
Highest temperature in Seoul on March 18?
8°C 38%
9°C 33%
7°C 11.5%
10°C 9%
$66,253 Vol.
$66,253 Vol.
3°C or below
<1%
4°C
1%
5°C
<1%
6°C
1%
7°C
12%
8°C
38%
9°C
33%
10°C
9%
11°C
6%
12°C
2%
13°C or higher
1%
8°C 38%
9°C 33%
7°C 11.5%
10°C 9%
$66,253 Vol.
$66,253 Vol.
3°C or below
<1%
4°C
1%
5°C
<1%
6°C
1%
7°C
12%
8°C
38%
9°C
33%
10°C
9%
11°C
6%
12°C
2%
13°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 14, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSIResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSIResolver
0x69c47De9D...Trader sentiment clusters tightly around 8–10°C for Seoul's March 18 high temperature, with 9°C leading at 28% implied probability, driven by the Korea Meteorological Administration's (KMA) latest short-range forecast projecting a daytime peak near 9°C amid mild southerly breezes and partial cloud cover. Global models like ECMWF and GFS ensembles show a narrow spread of 1–2°C uncertainty, differentiated by subtle shifts in upper-air trough positioning and low-level moisture advection, which could suppress peaks to 8°C under thicker clouds or nudge to 10°C with clearer skies. Historical March averages hover at 10°C, but recent cool anomalies from Siberian air masses temper expectations, with KMA's next update pivotal for resolution.
Experimental AI-generated summary referencing Polymarket data · Updated

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