Highest temperature in Hong Kong on August 9?

Platform comparison

Market context

Hong Kong is in a **very hot** spell, with the Observatory’s 4 a.m. reading already at 31°C and a daytime high likely to depend on how much sunshine survives the morning. The market therefore hinges on whether the city reaches the mid-30s at the Observatory’s reference site, rather than on what happens in outlying districts, which can run hotter or cooler.

That is why the current crowd view near the top end needs to be read against recent precedent: Hong Kong has already produced an exceptionally hot August pattern before, with the Observatory reaching 35.4°C on 5 August 2024 during a persistently fine stretch, while 9 August climatology still sits around a lower-30s normal maximum rather than an extreme. This year’s setup is also consistent with recent local reporting that the city had already seen its hottest day of 2026 so far on 8 August, when the Observatory reached 34.7°C and some inland areas exceeded 35°C, suggesting another near-record day is possible if the cloud breaks.

The main catalysts are the Observatory’s hourly and daytime forecast updates, the persistence of subsiding air and weak winds, and whether any showers or thicker cloud arrive before the afternoon heating peak. Traders should watch the official Hong Kong Observatory readings and daily extract publication, because the market resolves only once the final “Absolute Daily Max” for 9 August 2026 is posted. Current private forecasts also point to a high in the upper 90s Fahrenheit, broadly consistent with a mid-30s Celsius outcome rather than a cooler one.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Highest temperature in Hong Kong on August 9?. 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.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.