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 currently pricing a 0% chance for any specific outcome despite strong historical evidence pointing to 29–30°C. Historical data from the Hong Kong Observatory shows that July is consistently the hottest month, with average highs of 31°C and long-term peaks frequently reaching 30.9°C on 30 July[3][9]. Comparable cases from recent years reveal that daily maximums in early July typically fall between 29°C and 30°C, aligning with the current Polymarket frontrunner of 30°C at 40% probability, which contradicts the 0% crowd-implied probability cited in the prompt[1].

Traders should monitor the Hong Kong Observatory’s “Daily Extract” publication, which finalises the “Absolute Daily Max (deg. C)” for 7 July once data is verified[4]. The key catalyst is the release of this official figure, expected shortly after the settlement window opens, as the market cannot resolve until the data is published[1]. A broad trough of low pressure affecting the South China Sea in the first half of July is transporting extra moisture to the region, which may suppress temperatures slightly but is unlikely to drop them below the 29°C threshold given global warming trends and the current ENSO status[4][5]. Watch for any sudden updates from the Observatory’s forecast team, as the monthly forecast explicitly predicts normal to above-normal temperatures for July 2026[4].

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

Can I bet on individual matches?

Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.

What are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

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.