Highest temperature in Hong Kong on August 1?

Platform comparison

Market context

Hong Kong’s highest temperature on 1 August will be set by a single official reading from the Hong Kong Observatory, so the market is really about whether the city posts an unusually hot afternoon on that date. The Observatory’s climatology pages show August is normally hot and humid, with typical daytime highs around 31–32°C, but the month has also produced extreme spikes well above that range.[10][12][14]

Recent precedent suggests traders should treat the market as a low-frequency “jury” event in which the Observatory’s final daily extract is the only vote that matters, not the broader public mood. Hong Kong has recorded August highs of 36.6°C in 2017 and 35.4°C at Observatory Headquarters on 5 August 2024, while 2025 still delivered a 31.7°C mean daily maximum despite heavy rain, showing that one hot spell can coexist with a wet month.[5][6][11] That history makes the current 0% implied probability look more like a reflection of calendar timing than of climatology.

The key catalysts are the weather pattern over the next 24 hours, especially sunshine, rainfall, cloud cover and any late-day surge in temperatures before the Observatory’s daily extract is published. Hong Kong’s official summaries are released after the day closes, and the market cannot resolve until the “Absolute Daily Max (deg. C)” for 1 August appears in the relevant Daily Extract.[10] Traders will be watching whether the day behaves more like a typical early-August session, or whether the city briefly reaches the sort of upper-30s reading that has occasionally reset the record books.[9][10]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Entertainment-specific comparison page for Highest temperature in Hong Kong on August 1?. Polymarket's live quote (Polygon order book) shows the award probability. For awards markets, Polymarket usually has the deepest liquidity; Betfair runs comparable markets for Oscars/Emmys; Manifold for Eurovision.

Resolution & payout

Entertainment markets settle on official award ceremony or show end. Polymarket uses UMA Optimistic Oracle with a source URL to the official award website. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

When do award markets resolve?

After the official announcement — e.g. Oscars ceremony end for Academy Awards markets, Eurovision final end for ESC markets. UMA Optimistic Oracle typically uses the official award website as the resolution source.

How accurate are award predictions?

Variable. Industry-predictable awards (Oscar Best Picture) have high market accuracy (Brier ~0.15). Reality-TV outcomes with small markets carry more noise. Eurovision is notorious for market upsets due to bloc voting.

What was the top Oscar 2025 market?

Best Picture, with ~$2.8M volume on Polymarket. "Anora" started as an underdog at ~8% and closed at ~62% before the ceremony — the biggest single Oscar market swing since 2019.

How are reality-TV outcomes verified?

UMA Oracle uses the official show website or producer statement as the resolution source. Very narrowly defined markets (e.g. "Will X be voted off the island?") rely on the official show notes.

Are there politics-entertainment crossover markets?

Yes — e.g. "Will X be parodied on SNL?", "Who will host the next Oscars?". These have thinner liquidity but offer alpha for traders who read pop-culture and political worlds together.