Highest temperature in Hong Kong on July 8?

Platform comparison

Market context

Hong Kong is set to experience a wet, rain-heavy day on 8 July 2026, with forecast highs of 27–31°C and a high probability of significant rainfall, which directly suppresses the likelihood of extreme heat. This current crowd-implied probability of 0% for any temperature range above the baseline reflects the immediate meteorological reality: rain and cloud cover act as a thermal brake, preventing the sun from driving temperatures to record highs. Historical July data shows average highs of 33°C (91°F) during the warmest period from late May to mid-September, yet today’s specific conditions of 75–95% humidity and persistent rain align with cooler, more moderate outcomes rather than the 33°C peaks seen in dry spells.

Traders should monitor the Hong Kong Observatory’s finalised "Daily Extract" for the "Absolute Daily Max (deg. C)" once data is published, as this is the sole resolution source. The seasonal forecast for July–September 2026 indicates normal to above-normal temperatures overall, but the immediate dependency is the 08 July weather event itself, where rain is expected to dominate. A beat-reporter source from the Hong Kong Observatory confirms that 80% of annual rainfall falls between May and September, making wet July days a recurring catalyst for suppressed highs. Watch for any sudden shifts in the forecast for 09 July, which shows sunny intervals with showers and highs of 27–32°C, as this could signal a rapid change in thermal conditions if the rain clears quickly. The resolution will not occur until the official data is finalized, so the key catalyst is the timing of that publication.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Hong Kong on July 8?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

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Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.