Seoul's weather in April typically transitions between spring conditions and early summer warmth, with daily maximum temperatures generally ranging from 15°C to 25°C depending on prevailing atmospheric patterns and the strength of seasonal spring weather systems moving through the region. This particular market tracks whether the highest temperature recorded in Seoul on April 20 will be exactly 15°C—a specific and verifiable data point that can be confirmed against official Seoul meteorological records at the market's closure. At 26% YES odds, the market indicates that hitting this precise temperature threshold is considered less likely than other outcomes, which may reflect expectations of warmer than typical April conditions or forecasts suggesting the daily high will fall noticeably above or below this target temperature. The market remains open until midnight UTC on April 20, giving traders time to assess updated real-time weather forecasts and atmospheric conditions as the event date approaches and final weather systems develop. Weather prediction markets attract traders interested in seasonal climate patterns, daily temperature volatility, weather forecasting accuracy, and the dynamic intersection of climate science and live market pricing mechanisms.