This market poses a specific meteorological prediction: will Seoul's lowest temperature on May 17 reach exactly 15°C? This is a highly precise weather outcome that resolves based on official data from the Korean Meteorological Administration (KMA), the authoritative source for Korean weather records. With current YES odds sitting at 0%, traders express near-complete confidence that the low will not hit this exact threshold. Seoul in mid-May typically experiences overnight lows ranging from 12°C to 18°C during the spring-to-summer transition period. Reaching any specific single-degree value is statistically uncommon in real-world meteorological conditions. Prediction markets rely on precise, independently verifiable data, making outcomes both resolvable and suitable for trading participation. The 0% odds reflect a rational market assessment: Seoul's May 17 low will either fall below 15°C if an unexpected cold front pushes through the region, or remain above 15°C as the ongoing seasonal warming trend continues its gradual trajectory.
What factors could move this market?
Seoul's weather patterns during mid-May exemplify the broader East Asian spring-to-summer transition. Climatologically, Seoul's May temperatures show considerable daily variability as the region transitions from cooler spring air masses toward warmer summer conditions. Historical records indicate May lows typically range from 10°C during anomalously cool years to 18°C when early-season warming dominates, with the median May low hovering near 13-15°C. The specificity of this market—targeting exactly 15°C—mirrors Seoul's typical seasonal low, which simultaneously makes the outcome plausible and statistically unlikely. Meteorological recording stations capture temperatures to decimal precision, but daily overnight lows represent a continuous variable within a 24-hour period. In practice, these minimums rarely align precisely with integer-degree values; statistical analysis suggests any given round-number low occurs perhaps 3-5% of the time, making exact-value predictions inherently challenging. Several atmospheric scenarios could theoretically produce exactly 15°C on May 17. A weak high-pressure system drifting northeast across the Korean peninsula might create marginal nocturnal cooling without the sharp temperature drop of a strong cold front. Alternatively, cloud-cover patterns affecting radiative cooling combined with light winds could modulate the low to precisely that threshold. Opposing these YES-favoring scenarios are more probable outcomes: a genuine cold-air advection event could push lows into the 10-12°C range, while the prevailing seasonal warming trend might sustain lows at 16-18°C. Recent European and Korea Meteorological Administration forecasts would inform short-term expectations. The market's 0% YES odds reflect traders' collective skepticism about exact-value weather predictions. The modest trading volume suggests this is a recurring daily market where traders typically abstain unless compelling forecast convergence appears.
What are traders watching for?
KMA official low temperature for Seoul on May 17 serves as the sole and definitive arbiter of market resolution; traders verify against this
Overnight minimum temperature timing, typically predawn hours, determines what the KMA records; influenced by cloud cover and wind patterns
Cloud cover and precipitation forecast for May 17 evening through early morning; these directly affect overnight radiative cooling intensity
Regional weather system track for May 17—whether a cold front, high-pressure ridge, or warm air mass dominates the Korean peninsula
How does this market resolve?
Market resolves YES if Seoul's official daily low temperature for May 17 is exactly 15°C per the Korean Meteorological Administration. Resolves NO for any other value.
Polymarket Trade is an independent third-party interface to the Polymarket CLOB prediction market exchange on Polygon — not affiliated with Polymarket, Inc. Prediction markets aggregate trader expectations into real-time probability estimates. Every market question resolves YES or NO based on a specific event outcome; traders buy shares of the side they believe will resolve positively. Prices range 0¢ (certain no) to 100¢ (certain yes) and naturally reflect the crowd-implied probability of YES. Polymarket Trade is non-custodial — your funds never leave your wallet. Open the full interactive page linked above to place orders, see order book depth, and execute a trade.
