Seoul April 8 High Temp: Will Thirteen Celsius Hit?

Seoul sits at the edge of spring, and one thermometer reading will close this contract tomorrow. The Korea Meteorological Administration records the official daily maximum for April 8. Thirteen degrees Celsius gets a 25.5% implied probability. The other eleven outcomes split the remaining 74.5%. One degree of separation is all that stands between a payout and a loss.

This market resolves April 8, 2026. The primary outcome is 13°C. The YES price sits at 0.26, implying a one-in-four chance. Eleven alternative buckets run from 5°C or below up to 15°C or higher, each pulling probability away from the lead. The market has been trading actively: $60,728 of the $77,542 total volume moved in the last 24 hours. Liquidity stands at $42,480, well below the threshold where thin order books can move prices sharply on a single large trade or a new forecast update.

How the Seoul Temperature Contract Works

This contract resolves YES if the Korea Meteorological Administration records a daily high of exactly 13°C in Seoul on April 8, 2026. Any other recorded maximum pays out to the corresponding alternative bucket. The KMA is the sole resolution authority. The contract closes the moment April 8 ends and the official measurement is confirmed.

• YES (13°C): 0.26 price, 25.5% implied probability
• 12°C: available in the alternative outcome set
• 14°C: available in the alternative outcome set
• 11°C and below: additional buckets in the market
• 15°C or higher: upside bucket with its own probability weight

A miss on 13°C does not mean the weather was cold or warm. The Seoul high could land at 12°C or 14°C and both outcomes pay zero to 13°C holders. The KMA rounds to whole-degree Celsius precision. A reading of 13.4°C resolves as 13°C. A reading of 13.5°C or above rounds to 14°C and pays the 14°C bucket instead.

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Price Movement and Market Conviction

The 24-hour momentum signal is mixed but directionally bearish for the 13°C outcome. The YES price gained 3.0% in the last 24 hours, a modest bounce after steep declines earlier in the week. The contract opened at 0.47 and has lost nearly half its value since then, suggesting traders repriced toward cooler or warmer adjacent buckets as short-range forecasts sharpened.

Total volume of $77,542 with $60,728 arriving in the last 24 hours signals a late surge of positioning before tomorrow’s resolution. Liquidity at $42,480 is thin. A single large trade or a forecast revision from KMA or a major weather service could move the YES price by several percentage points in minutes. Treat this market’s price as directional, not precise.

Key Factors

• The Korea Meteorological Administration records the official Seoul daily maximum. Their measurement is the sole resolution input. No other data source overrides it.
• Historical climate data places Seoul’s average daily high in the first third of April near 13.8°C. That statistical midpoint sits directly between the 13°C and 14°C buckets, giving both plausible claims on probability.
• The YES price dropped sharply on April 4 and April 5, losing more than 15% across two sessions. The 24-hour gain of 3.0% has not recovered that ground. The contract has drifted significantly from its opening level.
• Thin liquidity at $42,480 means the order book cannot absorb large directional trades without price slippage. Late-breaking forecast data will move this market faster than a deeper book would allow.
• April monthly temperature range for Seoul runs from roughly 9°C to 15°C. Multiple adjacent buckets have genuine weather probability, which structurally limits how high any single bucket can trade.

Lines Analysis: Seoul Temperature on April Eight

The Korea Meteorological Administration data supports a tight cluster around 12°C to 15°C for early April Seoul readings. Climate records show the average daily high for the first ten days of April running near 13.8°C. That number is close enough to 13°C to give the primary outcome real statistical footing. Traders pushed YES to 0.47 at open, suggesting early positioning leaned toward this bucket as the most likely single outcome. The subsequent selloff reflects forecast refinement, not a dramatic weather reversal.

The 74.5% probability against 13°C reflects arithmetic reality, not a weather call. Eleven alternative buckets each carry their own probability. Even if 13°C is the single most likely outcome, the combined weight of every other outcome dwarfs it. A Seoul high of 14°C, which is within the historical average range for the date, pays zero to 13°C holders and everything to 14°C holders. The margin between these outcomes is one KMA decimal place.

Signals to Monitor

• Korea Meteorological Administration short-range forecasts for Seoul on April 8: any model shift above 13.5°C moves probability toward the 14°C bucket.
• KMA or AccuWeather 24-hour forecast updates tonight: last-minute forecast changes with resolution tomorrow will hit this thin-liquidity market hard.
• Cold front or overnight temperature pattern: if Seoul drops sharply overnight on April 7, daytime recovery could stall at 12°C rather than reaching 13°C.
• Wind direction and cloud cover forecasts for Seoul: both affect how quickly temperatures climb on a spring morning.
• Final KMA recorded maximum after market close on April 8: this single number closes the contract with no appeals.

The $77,542 total volume shows real trader engagement for a single-day temperature contract. The data favors the 13°C bucket as the highest-probability individual outcome. But 25.5% is still a one-in-four shot, and the surrounding buckets at 12°C and 14°C are not long shots. Here’s what the measurements are telling us: the historical average puts the true reading right between the two leading buckets. The market is pricing uncertainty, not science.

LINES VERDICT

Thirteen Celsius: Leading Outcome, Not a Lock

Climate records place Seoul’s early April daily high closest to the 13°C and 14°C buckets. The 13°C outcome leads the field but shares probability with too many adjacent neighbors to call it settled.

What the market says: 25.5% implies a one-in-four chance for the 13°C outcome. That is the highest single-bucket probability in the market. With resolution tomorrow, any new forecast update will reprice this thin-liquidity book quickly.

Key unknown: The Korea Meteorological Administration’s final April 8 maximum reading is the only data point that matters. A real-world temperature of 13.5°C resolves as 14°C. One tenth of a degree decides the payout.