Singapore June 9 High Temp: Will 30°C Hold?

A single weather reading will settle this contract by tomorrow noon. The market has moved hard overnight, with the 30°C outcome jumping more than 40 percent in the last 24 hours to sit at 82 percent implied probability. That surge is the story here, not the destination.

The market question asks whether the highest temperature recorded in Singapore on June 9 will reach exactly 30°C. The YES price sits at $0.82, the NO price at $0.18. The contract resolves June 9, 2026 at 12:00 UTC. Total volume stands at $51,068, with $39,702 of that trading in the last 24 hours alone.

How the 30°C Singapore Contract Works

Singapore’s Meteorological Service records daily maximum temperatures at Changi climate station, the primary reference point for most weather-linked contracts in the city-state. A YES resolution requires the official daily high on June 9 to register exactly 30°C, not 29°C, not 31°C, not a range. The contract resolves at midday, meaning morning readings through the early afternoon window determine the outcome.

• YES ($0.82, 82% implied): Singapore’s official maximum temperature on June 9 records at 30°C.
• NO ($0.18, 18% implied): The official maximum records at any other value, including 29°C, 31°C, or higher.

The NO outcome pays when the daily high misses the 30°C mark in either direction. Singapore in early June averages maximum temperatures between 31°C and 33°C, with 30°C representing a slightly cooler-than-typical day. A cooler read from overnight cloud cover or an afternoon shower, or a hotter read from full sun and suppressed sea breeze, both defeat YES. The resolution window is tight and the measurement is exact.

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Momentum and Market Signals

The momentum composite here is unusually sharp. A 40.5 percent jump in the last hour and a 44 percent gain over 24 hours, combined with a trend score of 86.88, signal a near-vertical repricing event. That kind of move in a short-duration weather market almost always traces to new meteorological data, a forecast update from the Singapore Meteorological Service, or a numerical weather model run pointing to a 30°C ceiling for June 9. The data doesn’t care about the politics, and here the data apparently just got specific.

Total volume at $51,068 is modest. The 24-hour volume of $39,702 is actually the majority of all trading ever recorded on this contract, which tells you the market was nearly dormant until very recently. Liquidity stands at $84,073, which is deeper than the volume suggests. Thin-volume markets like this one can move sharply on a single forecast update or a single large trader taking a position. The current price should be read as reactive, not as settled consensus.

Key Factors

• The 1-hour price change of +40.5% and 24-hour change of +44.0% together indicate a concentrated repricing event, most likely driven by a fresh weather model run or forecast advisory for Singapore on June 9.
• Total volume of $51,068 is low enough that the current 82% price reflects a small number of trades, not broad market agreement.
• Singapore’s June climatology typically produces daily highs between 31°C and 33°C, meaning a 30°C max would require suppressed afternoon heating, likely from cloud cover or precipitation.
• The contract resolves at 12:00 UTC, which corresponds to 8:00 PM Singapore Standard Time, capturing the full day’s maximum.
• Trader sentiment reads strongly bullish at 82% YES versus 18% NO, consistent with the price, but not independently confirmatory given the thin volume.

Lines Analysis: What the Singapore Temperature Data Is Saying

Here’s what the measurements are telling us: the market has priced 30°C as the most likely outcome after a major repricing in the last 24 hours. For that to be right, Singapore needs a day with suppressed afternoon heating. The island’s June climate often delivers overcast mornings and afternoon convective showers, both of which can cap the daily maximum below the 31-33°C typical range. A forecast showing cloud cover, a mesoscale convective system overnight, or onshore flow from the South China Sea would all support 30°C. The repricing suggests at least one forecaster or model run is pointing exactly there.

The NO side has real teeth despite the low price. Singapore’s urban heat island effect and June’s generally humid, sun-intensive days push the climatological mean well above 30°C. Any day with morning sun and a delayed sea breeze pushes the high to 31°C or 32°C, flipping this contract immediately. A single degree separates YES from the most probable alternative outcomes. The market is pricing uncertainty, not science, and that uncertainty compounds as the resolution window closes.

Signals to Monitor

• Singapore Meteorological Service forecast updates for June 9: any advisory showing maximum temperature at 30°C directly supports YES and would explain the recent repricing.
• Weather model consensus (GFS, ECMWF) for Singapore on June 9: if both major models converge on a 30°C cap, that’s the strongest confirmation available.
• Overnight cloud cover and precipitation reports from Changi: cloud deck persistence into morning hours is the primary mechanism for a below-average daily high.
• Any forecast shift toward clearer skies and lighter winds would push the actual high above 30°C and reprice this contract sharply lower.
• The 12:00 UTC resolution cutoff means readings published through early afternoon Singapore time are the deciding data.

Total volume of $51,068 is thin for a binary weather contract in its final 24 hours. The data currently favors YES at 82%, but one forecast revision or an unexpected sunny morning in Singapore would reprice this fast. The YES side has the momentum; the NO side has the climatological base rate.

Conditional YES, One Forecast Away From a Flip

The market repriced hard on new forecast data pointing to a capped daily high, and the momentum is unambiguous. But a single degree of forecast error flips this contract, and Singapore’s June climatology runs warmer than 30°C more often than not.

What the market says: 82% implied probability that Singapore’s June 9 official maximum lands at exactly 30°C. That confidence is recent and reactive, not settled. With resolution in under 24 hours, any forecast revision will move this price sharply.

Key unknown: The Singapore Meteorological Service’s final June 9 temperature forecast is the single data point that matters. A shift toward clearer skies or reduced cloud cover in the morning hours would reprice this contract from 82% toward the low end immediately.