Lowest temperature in Hong Kong on August 9?

Platform comparison

Market context

Hong Kong’s overnight minimum on 9 August is the figure that matters here, not the daytime high, because the market resolves off the Hong Kong Observatory’s “Absolute Daily Min (deg. C)” for that date once the daily extract is finalised. In practical terms, that means the market is really asking whether the city posts an unusually cool dawn reading by Hong Kong summer standards, or simply another humid, warm minimum in the mid-to-high 20s Celsius.

Recent and climatological context both argue against a very low result. The Observatory’s August normal for 9 August shows a mean minimum of 26.9°C, while recent Hong Kong weather history has also been very warm, with 2024 described by the Observatory as “exceptionally hot” and 3–9 August dominated by persistent heat.[2][6] Comparable late-summer weather records in Hong Kong usually cluster well above the cool-season range, so a sub-25°C outcome would be more notable than ordinary. That helps explain why a 0% crowd-implied YES is easy to understand as a market read: it is effectively pricing in another standard tropical minimum rather than a rare cool excursion.

The main trader focus is whether a late-night rain band, stronger easterly flow, or an unexpected cloudier spell trims the pre-dawn low enough to shift the final one-decimal reading. The Hong Kong Observatory’s short-range forecast and daily readings matter more than broad monthly averages, because the market resolves from the official day-specific extract after publication.[7][11][16] For context, current weather services show very warm August conditions in Hong Kong, with forecast lows around 27–28°C and highs around 31–32°C, which keeps the balance of risk tilted towards a standard warm minimum unless conditions change materially before the daily observation is locked in.[15][18]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Entertainment-specific comparison page for Lowest temperature in Hong Kong on August 9?. 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.

Is entertainment trading worth the effort?

Niche, but lucrative for experts. Award markets have fewer informed traders than political markets; combining industry expertise (film, music) with active research often surfaces mispricings. Volume cap: large bets move the market.