Pronóstico: Highest temperature in Hong Kong on August 21?

Platform comparison

Market context

Hong Kong’s temperature on 21 August will be shaped by a humid late-summer setup rather than a clean, one-way heat signal. The Hong Kong Observatory has had Very Hot Weather Warnings in force at points this month, and its current morning readings have still been in the high 20s to around 30C, but showers and rain have also been present, which can cap the day’s maximum if cloud cover lingers[3][8][11][14].

The historical frame is that Hong Kong can still deliver a sharp late-August spike even after several mixed days. The city’s all-time Observatory headquarters record for August is 36.6C, set on 22 August, showing that the seasonal peak often arrives right around this part of the calendar rather than earlier in the month[12]. Recent coverage has also pointed to temperatures in the 33C to 37C range in inland areas during this spell, which matters because the market resolves off the Hong Kong Observatory’s recorded absolute daily maximum, not a district reading[10][11].

For traders, the main catalysts are the Observatory’s daytime warnings, the next forecast update, and whether showers or thunderstorms cut the maximum before the 12:00Z settlement cutoff. The strongest read-through comes from the Observatory’s own short-range forecast and warning cadence: if the Very Hot Weather Warning stays in place and the 9-day forecast continues to show very hot conditions, the upper bands gain support; if rain bands persist, the ceiling on the day’s high drops quickly[3][7][14].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Pronóstico: Highest temperature in Hong Kong on August 21?. 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

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.

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.

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.