Highest temperature in Hong Kong on August 18?

Platform comparison

Market context

Hong Kong's weather on 18 August 2026 will be measured against the Hong Observatory's official daily maximum temperature record, with settlement contingent on publication of the "Absolute Daily Max" figure in the Observatory's Daily Extract dataset. August sits firmly within Hong Kong's summer monsoon season, when heat and humidity reach annual peaks. The settlement window closes at midday UTC on 18 August, meaning traders must assess probabilities before the day's peak temperatures have fully materialised.

Historical August data from the Hong Kong Observatory shows daily maxima typically range between 31–34°C during this period, though extreme heat events pushing toward 35–36°C occur irregularly. The 0% crowd probability suggests current market pricing reflects either extreme confidence in a narrow temperature band or technical limitations in how the market's resolution brackets are structured. Without sight of the specific temperature ranges offered as settlement options, the nil probability warrants scrutiny—it may indicate traders view one particular bracket as implausible rather than reflecting genuine meteorological assessment.

Traders should monitor the Hong Kong Observatory's seasonal forecasts and any issued heat warnings in the weeks preceding 18 August 2026. Tropical cyclone activity in the Western Pacific during August can suppress temperatures through cloud cover and rainfall, whilst high-pressure systems intensify heat. The Observatory publishes extended outlooks and daily forecasts that will sharpen probability estimates as the date approaches. Settlement depends entirely on official data publication; any delays in the Daily Extract release could postpone resolution beyond the stated window.

Methodology

Football-specific comparison page for Highest temperature in Hong Kong on August 18?. 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.

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.

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.