Highest temperature in Hong Kong on July 7?

Platform comparison

Market context

On 7 July 2026, Hong Kong will record its highest daily temperature for the month, a figure that will determine the outcome of a prediction market with a current crowd-implied probability of 0% for any temperature above the lowest range. Historical data from the Hong Kong Observatory shows that July highs in Hong Kong typically reach 30.4°C to 31°C, with long-term averages confirming daytime maximums of 31°C and very high heat and humidity[2][8]. The seasonal forecast for July–September 2026 indicates normal to above-normal temperatures, suggesting that a spike beyond the baseline is plausible despite the current zero probability[3]. This divergence between historical climatology and market pricing frames the 0% as an outlier, potentially misreading the likelihood of an above-normal heat event.

Traders should monitor the Hong Kong Observatory’s upcoming “Daily Extract” for 7 July, which will publish the finalized “Absolute Daily Max (deg. C)” once data is confirmed[1]. The settlement window ends on 2026-07-07T12:00:00Z, meaning the market cannot resolve until the official figure is released[1]. Recent forecasts indicate temperatures in south China’s Hong Kong could reach as high as 25°C on Sunday, though a drop to 13°C is expected by the weekend, highlighting volatility in short-term conditions[4]. The key dependency is the Observatory’s data finalisation process; any delay in the Daily Extract could postpone resolution. With above-normal temperatures forecasted, the catalyst for a shift in probability lies in the official release of the day’s peak temperature, which may contradict the current market’s dismissal of higher ranges[3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Hong Kong on July 7?. 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

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

Which sports markets are available?

Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.

How fast do sports winnings settle?

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.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.