Highest temperature in Hong Kong on June 17?

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Market context

On 17 June 2026, the Hong Kong Observatory will record a daily maximum temperature in Celsius, rounded to one decimal place. This market resolves to whichever temperature band contains that official reading, drawn from the Observatory's "Absolute Daily Max" metric published in their Daily Extract dataset. The settlement window closes at midday UTC on the resolution date, though actual data publication typically occurs within days of the observation period.

Hong Kong's June temperatures cluster reliably between 28–32°C, with historical extremes rarely exceeding 34°C during this month. The 0% crowd probability suggests traders are either awaiting clearer seasonal forecasting models or treating this as a calibration exercise for temperature-band markets. Comparable June days from the past decade provide a baseline: the Observatory's records show consistent patterns tied to the onset of the southwest monsoon, which moderates peak daytime heat compared to May or July. Reviewing the Observatory's monthly climate summaries reveals that anomalous heat events in June are infrequent enough that extreme-range bands typically carry minimal backing.

Traders automating exposure to this market should integrate the Observatory's publication schedule into conditional order logic, since resolution data becomes available only after the settlement window opens. The Hong Kong Meteorological Society publishes seasonal outlooks in May, which can inform early positioning. Monitoring the Observatory's real-time weather bulletins in early June will flag any unusual pressure systems or heat-dome formations that might shift probabilities toward higher bands. API integration with the Observatory's climate database allows programmatic settlement verification once the Daily Extract is finalised.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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

Where can I trade this market with the lowest fees?

On Polymarket Bot UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket Bot UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does it cost to trade on Polymarket Bot UK?

Zero. Polymarket Bot UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Bot UK triggers a quick verification flow that finishes in minutes.