Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Mundial 2026 Grupos) Pick polygram.ink (preferred broker) |
41% | 59% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
41% | 59% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 30°C | 41% |
| 31°C | 34% |
| 29°C | 16% |
| 32°C | 10% |
| 28°C | 2% |
| 33°C | 2% |
| 34°C | 1% |
| 27°C or below | 0% |
| 35°C | 0% |
| 36°C | 0% |
| 37°C or higher | 0% |
Market context
Hong Kong's highest daily temperature on 15 August 2026 will be measured and recorded by the Hong Kong Observatory, with settlement determined by the absolute daily maximum in degrees Celsius published in their Daily Extract dataset. The market will resolve once official data is finalised and made available through the Observatory's climate information system.
August in Hong Kong typically sees peak summer heat, with historical daily maxima in mid-August ranging between 32°C and 35°C. The 30-year climate normal for maximum temperature in August sits around 32.5°C, though individual days frequently exceed 34°C during the height of the summer monsoon season. Extreme readings above 36°C are possible but uncommon for this period; the Observatory's records show such occurrences roughly once every five to ten years in August. The current 0% crowd probability suggests traders are awaiting clarity on which specific temperature bands the market offers as resolution options.
Traders should monitor seasonal weather patterns as August 2026 approaches, particularly the strength and timing of the southwest monsoon and any tropical cyclone activity in the western Pacific. The Observatory publishes monthly climate outlooks and extended forecasts that typically become more reliable 10–14 days before the target date. Any significant deviation from typical atmospheric circulation—such as an early autumn cooling pattern or an approaching typhoon—could materially shift temperature expectations. Historical data and forecasting models will become increasingly relevant once July 2026 concludes and meteorological services issue their August outlook.
Methodology
Football-specific comparison page for Pronóstico: Highest temperature in Hong Kong on August 15?. 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.
- 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.
- 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.
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