Seoul Low Temperature June 10: Will 17C Hit?

Seoul’s overnight low on June 10 is sitting at the center of a tight weather market. The 17°C outcome carries a 42% implied probability, up sharply after a 22.5% price surge in the past 24 hours. That move is the story here: the market opened this outcome at roughly half its current price, and traders pushed it hard on June 9.

This market asks a single question: what will the lowest temperature recorded in Seoul be on June 10, 2026? The 17°C bucket is priced at 0.42 YES, 0.58 NO, with resolution set for June 10 at noon local time. Total volume stands at $5,826, with $5,324 of that trading in the last 24 hours alone.

How the Seoul Temperature Contract Works

The market resolves based on the official lowest temperature recorded in Seoul on June 10. Eleven discrete buckets cover the range from 11°C or below up to 21°C or higher. Traders buy the specific bucket they believe will match the verified low. Only one outcome pays out.

• YES at 0.42 means traders assign a 42% chance the Seoul low lands exactly in the 17°C range on June 10.
• NO at 0.58 reflects a 58% combined probability spread across all other temperature outcomes, from 11°C or below up to 21°C or higher.

The NO side wins if Seoul’s low falls anywhere outside the 17°C bucket. That covers a wide range. A cooler-than-expected night pushing the low to 16°C or 15°C, or a warm front holding the low at 18°C or above, both pay out NO. Weather markets like this one hinge on forecast precision in the final 24 to 48 hours before resolution.

[[BANNER_BLOCK]]

Momentum and Market Signals

The combined momentum signal here is clearly bullish for the 17°C outcome. The 1-hour change is flat at 0.0%, but the 24-hour surge of 22.5% and a trend score of 56.63 point to a single driver: traders updated their forecast view on June 9 as short-range weather models sharpened their Seoul overnight low prediction. That kind of late-stage repricing in a same-week weather market almost always reflects a converging model consensus.

Liquidity stands at $13,636 against $5,826 in total volume. The 24-hour volume of $5,324 represents more than 91% of all trading in this contract. Volume is well below $1 million, which means price can move sharply on any single trade or updated forecast. A thin book amplifies both conviction and noise.

Key Factors

• The 22.5% surge in the 17°C outcome over 24 hours signals traders shifted toward a tighter forecast window centered on that bucket after June 9 model runs.
• The 1-hour price change of 0.0% suggests the initial repricing has stabilized, with traders now watching for final forecast confirmation rather than adding new positions.
• Liquidity of $13,636 is relatively healthy for a single-day weather market, but the low total volume means a few large trades could reprice the contract before resolution.
• Eleven competing outcomes split the NO probability, so no single alternative bucket dominates the bearish side.
• Resolution is June 10 at noon local time, leaving fewer than 24 hours for new information to shift the market before close.

Lines Analysis: Seoul’s Overnight Low on the Edge

Seoul in mid-June sits in a transitional weather window. The Korean Peninsula in early to mid-June typically sees overnight lows ranging from the mid-teens to low twenties Celsius as the pre-monsoon pattern establishes itself. The 17°C outcome sits squarely in that plausible range. The sharp 24-hour price move suggests weather model output on June 9 converged toward a low in that specific bucket, giving traders enough confidence to push the probability from roughly 23% at open to 42% now.

What makes the NO side real is the breadth of competing outcomes. The 16°C and 18°C buckets sit immediately adjacent to the 17°C target. A forecast error of even one degree in either direction pays out NO. Seoul’s urban heat island effect can also push overnight lows slightly higher than regional model output predicts, nudging the actual low toward 18°C or 19°C. A cold front or clear-sky radiative cooling event could push it lower toward 16°C. The margin for NO is narrow in temperature terms but covers a lot of probability space.

Signals to Monitor

• Korea Meteorological Administration overnight low forecast for Seoul on June 10: any update showing a shift toward 16°C or 18°C would reprice competing buckets sharply.
• Global model consensus (GFS, ECMWF) for Seoul on June 10: agreement between models on 17°C strengthens the YES case; divergence weakens it.
• Late-evening cloud cover and wind conditions in Seoul: clear skies and light winds favor stronger radiative cooling, which could push the low toward 16°C.
• Any significant weather system moving through the Korean Peninsula on June 9 to 10: a frontal passage in either direction would shift the low outcome range.
• Real-time trading activity in adjacent buckets (16°C and 18°C): a surge in either of those outcomes signals traders are moving away from the 17°C consensus.

The $5,826 in total volume is thin. The data strongly favors the 17°C bucket based on the recent price move, but adjacent outcomes split the NO probability across a wide range. The market is pricing a weather forecast, not settled science, and forecasts at this range carry meaningful uncertainty.

LINES VERDICT

NARROW FAVORITE WITH REAL ADJACENT RISK

The 17°C bucket earned its 42% probability through a sharp 24-hour repricing driven by converging short-range forecast models. But weather markets at this resolution level live and die by the final model run, and adjacent buckets at 16°C and 18°C remain serious competitors.

What the market says: The 42% implied probability makes 17°C the single most likely outcome but leaves 58% spread across ten other buckets. With resolution in under 24 hours, any forecast shift in the final model runs will move this price fast on thin liquidity.

Key unknown: The Korea Meteorological Administration’s next official forecast update and the final ECMWF model run for Seoul on June 10 are the two data points that will determine whether the 17°C consensus holds or collapses into an adjacent bucket before market close.