Seoul April 29 Low Temp: Will 8°C Hit?

Seoul’s overnight low on April 29 has become a live trading question, and the market is narrowing fast. The 8°C outcome carries a 56.5% implied probability as of April 28, with traders bidding it up sharply over the past 24 hours. That kind of momentum in a weather-specific contract usually means local forecast data is aligning behind a particular temperature band.

Here’s what the measurements are telling us: Seoul sits in a classic late-April transition window. The Korean Meteorological Administration typically shows overnight lows ranging between 6°C and 12°C during this period, depending on whether a cold continental air mass or a warmer maritime flow dominates. Right now, the market is betting the mercury settles exactly at 8°C when the April 29 resolution window closes at noon local time.

How the Seoul April 29 Low Temperature Contract Works

This contract resolves based on the official lowest temperature recorded in Seoul on April 29, 2026. The resolution window closes at 2026-04-29 12:00:00. Traders are buying one of twelve discrete temperature outcomes, from 4°C or below through 14°C or higher. The 8°C outcome is the current market leader.

• 8°C (YES): $0.57 implied probability — 56.5%
• All other outcomes (NO): $0.44 implied probability — 43.5%

The NO side pays out if Seoul’s official low lands anywhere other than exactly 8°C. That is a wide target. Any meaningful forecast shift toward 7°C, 9°C, or adjacent bands collapses the YES probability without requiring an unusual weather event. The Korean Meteorological Administration’s next forecast update is the single most important input for this market before resolution.

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Sharp Momentum in a Thin Market

The momentum composite here is striking. A 23.5% one-hour gain, a 28.5% 24-hour gain, and a trend score of 82.60 all point in the same direction. That combination typically signals a catalyst: either a specific forecast update from the Korean Meteorological Administration or a weather model run that tightened the overnight low estimate around 8°C.

Volume tells a more cautious story. Total market volume is $3,740, with $2,879 trading in the last 24 hours. Liquidity sits at $3,672. This is a thin market. A single large order can move the price significantly. The momentum signal is real, but it does not reflect deep institutional conviction. Thin liquidity means price can move sharply on any new forecast data before the April 29 resolution.

• The Korean Meteorological Administration’s short-range forecast for Seoul overnight April 28-29 is the primary price driver.
• The 1h change of +23.5% and 24h change of +28.5% combine as one signal: recent forecast data shifted toward 8°C.
• Open interest stands at $0, confirming this market is fully position-based with no residual unresolved contracts from prior sessions.
• Adjacent outcomes at 7°C and 9°C represent the most direct competitive pressure on the 8°C position.
• Total volume under $5,000 means this contract is susceptible to sharp repricing if the late-evening Korean Meteorological Administration forecast diverges from current models.

Lines Analysis: Seoul’s Overnight Low and the 8°C Case

The Korean Meteorological Administration’s forecast data appears to be driving the 8°C position. Late April in Seoul typically sees overnight lows pulled between continental high pressure systems pushing colder air from the north and maritime warming from the Yellow Sea. When a weak continental system is in place, 8°C is a plausible equilibrium for the overnight minimum. The market’s rapid repricing over 24 hours suggests recent model runs converged on that exact band.

The NO case is straightforward: Seoul’s low lands at 7°C or 9°C, and both outcomes sit within normal forecast uncertainty for this time of year. A one-degree shift in the prevailing wind direction or timing of a front passage is all it takes. The Korean Meteorological Administration’s evening update on April 28 carries significant weight. If that forecast moves the overnight low band even slightly, the 8°C probability compresses fast in a market this thin.

• Korean Meteorological Administration’s April 28 evening forecast update: any shift in the overnight low band directly reprices the 8°C outcome.
• Weather model ensemble spread: if European and GFS models diverge on Seoul’s overnight minimum, uncertainty across the 7°C to 9°C range increases.
• Surface wind direction: a stronger northerly increases the chance of a 7°C or lower outcome; a maritime southerly pushes toward 9°C or above.
• Cloud cover forecast: clear skies overnight accelerate radiative cooling, pushing the low toward the colder end of the range.

The current price of $0.57 for the 8°C outcome reflects a modest edge in a genuinely uncertain single-degree forecast. The data points toward 8°C as the modal forecast outcome right now, but the margin is narrow. The market is pricing uncertainty, not science.

LINES VERDICT

Thin Conviction on a Single Degree

The 8°C outcome holds the modal position in the market, driven by recent forecast alignment from the Korean Meteorological Administration. But in a thin-volume contract with adjacent outcomes only one degree away, the edge is fragile.

What the market says: 56.5% probability that Seoul’s official overnight low on April 29 lands at exactly 8°C. That is a slim majority in a multi-outcome field, and with the resolution window closing at 2026-04-29 12:00:00, any late forecast revision before overnight temperatures drop could reprice this contract sharply.

Key unknown: The Korean Meteorological Administration’s April 28 evening forecast update. If the official overnight low estimate shifts by even one degree, the 7°C or 9°C outcomes absorb probability directly from the current 8°C leader.

Frequently Asked Questions

• What does 56.5% mean for this contract? The market assigns a 56.5% chance that Seoul’s official minimum temperature on April 29 is exactly 8°C. That is the plurality outcome in a twelve-way field, not a strong consensus.
• What pays out if 8°C does not resolve as YES? Any outcome other than 8°C pays out on the NO side. Seoul recording a low of 7°C, 9°C, or any other listed temperature resolves NO as the winner.
• What data event would move this price most? The Korean Meteorological Administration’s official short-range forecast update on the evening of April 28. A shift in the overnight low band directly reprices the leading outcome.
• When does this contract resolve? Resolution closes at 2026-04-29 12:00:00, based on the official lowest temperature recorded in Seoul on April 29, 2026.
• Is this market liquid enough to trust? Total volume is $3,740 with $3,672 in liquidity. This is a thin market. Price can move sharply on a single trade or new forecast data, so treat the current probability as a rough signal rather than deep market consensus.

This analysis reflects market conditions as of 2026-04-28 07:12:04. Prediction market probabilities are volatile and shift as new data and regulatory decisions emerge, especially as the 2026-04-29 12:00:00 resolution date approaches. Lines.com does not accept bets or provide financial or gambling advice. All market outcomes are uncertain.