Highest temperature in Hong Kong on August 1?

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Market context

Hong Kong’s hottest reading on 1 August will be set by the Hong Kong Observatory’s **Absolute Daily Max** in degrees Celsius, and the crowd’s **0% yes** price implies the market is treating an outcome in the published temperature range as effectively impossible. August normals for Hong Kong point to a mean maximum of **31.6°C** on 1 August, with average daily rainfall still material and humidity high, which usually caps extreme upside unless there is a short-lived inland heat build-up and strong sunshine early in the day.[1] The implied consensus is therefore firmly in the low-temperature bands, with value only if a trader believes the day can spike above the usual August ceiling rather than merely sit near it.

History argues for caution on the short side, because Hong Kong’s August climate is hot enough that mid-30s readings are not rare in stronger heat events, and the city has recently been recording exceptionally hot summers and record-breaking heat episodes.[5][20] HKO’s own climatology pages show that the market is not about a monthly average, but the single-day maximum printed in the Daily Extract, so the exact settlement depends on that one published figure rather than any forecast high.[14] That means the favourite remains the cooler-band outcome, but the contrarian angle is that one sunny, suppressed-rainfall day can still force a materially higher max than the crowd currently prices.

For catalysts, the key dependency is the Hong Kong Observatory’s final publication of the 1 August Daily Extract, which will not be available until the day’s data is finalised on the climatology page.[14] In practical terms, traders should watch the HKO current weather updates and the daily climatological release timing, because the market cannot settle until the official maximum is posted; the question is then whether the day logs a routine low-30s result or a heat-advantaged outlier. Forecast products already point to August highs around the upper 80s Fahrenheit, broadly consistent with low-to-mid 30s Celsius, which supports the consensus side but leaves some room for a hotter-than-normal surprise if cloud and rain stay away.[2][3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win 2026, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.