Highest temperature in Hong Kong on August 4?

Platform comparison

Market context

Hong Kong’s maximum temperature on 4 August will be set by the Hong Kong Observatory’s final daily extract, with the market resolving to the one-decimal Celsius range containing that figure. Early pricing is clustered around **29–30°C**, which is consistent with typical August conditions in Hong Kong, where humid summer weather often keeps city-centre highs in the upper 20s to low 30s, while clearer spells can still push readings a little higher.[2][11]

The current **0% YES** implies traders are effectively pricing out the market’s main buckets, but recent comparables argue for caution. Forecast products for Hong Kong on 4 August have shown a peak around **30°C**, with nearby outcomes at **29°C** and **31°C** also carrying material weight, while archived monthly guides and climate references point to August as a period when **27–32°C** is a normal band rather than an outlier.[2][11][14] Recent local reporting has also shown how quickly the city can move from mid-30s heat in exposed districts to lower readings under rain or cloud, which matters because the Observatory’s official value is the settlement trigger, not a district-level extreme.[6][9]

The main catalysts are the Observatory’s short-range forecast updates, any shift in shower coverage or cloud breaks, and whether the daily extract lands with an unexpected late-day spike. The market cannot settle until the Hong Kong Observatory publishes the finalized data for 4 August, so traders will watch for the day’s readings and the post-day extraction rather than headline forecasts alone.[8][15] If the overnight and morning guidance holds near the present 29–30°C cluster, the key risk is a modest upside to 31°C rather than a swing into the higher summer buckets already being left behind by the crowd.[2][3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Highest temperature in Hong Kong on August 4?. 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 (US-focused) or Manifold (play-money).

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.

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.

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.