Hong Kong July 6 High Temp: Will It Hit Thirty-One?

Hong Kong sits in the middle of its hottest season, and traders are betting on exactly one degree. The question is whether the city’s highest recorded temperature on July 6 lands at 31°C. The market prices that outcome at 37.5 percent, making it the single most likely result but far from a lock. With ten competing outcomes spread across 24°C and below all the way to 34°C or higher, this is a distribution bet, not a binary one.

The market question asks: what is the highest temperature in Hong Kong on July 6? The 31°C outcome trades at $0.38 YES and $0.63 NO. The contract resolves on July 6, 2026 at 12:00 UTC. Total volume stands at $8,469, with all of that arriving in the last 24 hours.

How the Thirty-One Degree Contract Works

A YES on the 31°C outcome pays out if the Hong Kong Observatory records a daily maximum of exactly 31°C on July 6. The Hong Kong Observatory is the recognized meteorological authority for official temperature records at its headquarters station in Tsim Sha Tsui. Resolution depends on that single daily maximum reading.

• YES ($0.38): The Observatory records a daily high of exactly 31°C on July 6.
• NO ($0.63): The daily high lands at any other value, whether 30°C, 32°C, or outside that range entirely.

The NO side wins if Hong Kong runs hotter or cooler than 31°C. Early July in Hong Kong averages daily highs between 31°C and 33°C, so the range of realistic outcomes clusters tightly. A cooler or cloudier day could push the max toward 29°C or 30°C. A strong ridge of high pressure or reduced cloud cover could push it toward 33°C or 34°C. Either direction hands the win to NO holders.

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Momentum and Market Signals

The momentum composite here is quiet. The 1-hour price change sits at zero, and the trend score of 34.66 indicates mild bearish lean with no directional surge. The market opened this contract at $0.35 and has drifted up to $0.38, a modest gain that reflects growing but still minority confidence in the 31°C outcome specifically.

Total volume is $8,469, with all of it arriving in the last 24 hours. Liquidity at $73,995 is actually strong relative to volume, meaning the order book can absorb movement without wild price swings. That said, $8,469 in total volume is thin by prediction market standards. A single informed bet on the July 5 evening weather forecast could move this price sharply before resolution.

• The 1-hour price change of zero and trend score of 34.66 signal a market waiting on weather data, not reacting to it.
• The 24-hour volume of $8,469 confirms this market opened recently. All price discovery is fresh.
• Liquidity at nearly $74,000 means the spread is well-supported. Price movements will reflect genuine new information, not order book gaps.
• Trader sentiment leans bearish at 62.5% NO, which is rational given ten outcome buckets split the probability space.
• The 30-day price range of $0.33 to $0.38 shows stable, low-volatility trading up to this point.

Lines Analysis: The Hong Kong Observatory Reading

The 31°C outcome has a reasonable meteorological case. Early July in Hong Kong regularly produces daily maxima in the 31°C to 33°C range. The Hong Kong Observatory’s historical July data shows 31°C is a common outcome, sitting near the lower end of typical peak temperatures for the month. If a weak tropical disturbance or increased cloud cover keeps temperatures modest, 31°C becomes the natural landing zone.

The risk to YES is real on both sides. A stronger-than-expected subtropical ridge pushes the daily high toward 32°C or 33°C. A rainier or cloudier day, perhaps associated with a nearby tropical system, could suppress the maximum to 30°C or 29°C. The Hong Kong Observatory issues daily forecasts and updates them in the 24 hours before the reading. Any forecast shift toward heat or rain in the July 5 to 6 window reprices every outcome bucket simultaneously.

• The Hong Kong Observatory’s July 5 forecast update is the single most important signal before resolution. A forecast high of 32°C or above shifts probability out of the 31°C bucket.
• Tropical system activity in the South China Sea can suppress temperatures quickly. Any tropical disturbance tracking toward Hong Kong reduces the probability of a warm-end outcome.
• Regional synoptic patterns, specifically the position of the Western Pacific subtropical high, determine whether July 6 runs hot or moderate.
• Urban heat island effects at the Observatory headquarters station tend to produce readings at or above regional averages. This slightly favors warmer outcomes in the 31°C to 33°C range.
• A cloudless July 6 with light winds and strong solar radiation raises the probability of outcomes above 31°C, pulling YES probability down.

Total volume of $8,469 is thin. The data currently favors a moderate July 6 temperature in the 31°C to 33°C range based on seasonal norms, but that range spans three separate outcome buckets. The 31°C bucket holds 37.5% of the probability for its specific value. That is defensible but not dominant. The market is pricing the full distribution honestly.

LINES VERDICT

REASONABLE BUT CROWDED MIDDLE

The 31°C outcome sits at the most historically common value for early July in Hong Kong, but the tight cluster of competing outcomes between 30°C and 33°C means probability is genuinely split across four realistic buckets.

What the market says: At 37.5% implied probability, the market treats 31°C as the single most likely outcome without treating it as certain. Volume is thin at $8,469, so this price can move sharply on the July 5 Observatory forecast update.

Key unknown: The Hong Kong Observatory’s July 5 evening forecast is the decisive data point. A forecast high of 32°C or above redistributes probability away from the 31°C bucket immediately.