Highest temperature in Hong Kong on June 6?

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Market context

On 6 June 2026, the Hong Kong Observatory will record the day's highest temperature in Celsius. Polymarket currently prices all temperature ranges at 0%, reflecting the market's inability to settle until official data publishes post-event. The settlement mechanism relies on the Observatory's "Absolute Daily Max" figure from their Daily Extract dataset, measured to one decimal place. Traders holding conditional tokens on Polygon will await this publication before USDC payouts execute.

Hong Kong's June temperatures cluster reliably between 28°C and 34°C based on thirty-year normals, with extreme highs occasionally reaching 36–37°C during early-season heat waves. The 6 June date falls within the pre-monsoon period when subtropical high-pressure systems can drive temperatures sharply upward. Historical records show June extremes have ranged from 23.9°C to 37.3°C, establishing the plausible bounds for any single day's maximum. Current zero pricing suggests the market awaits clearer seasonal forecasting or simply reflects low trading volume on a specific date contract.

The key dependency is the Hong Kong Observatory's publication timeline. Their Daily Extract typically releases within 48 hours of the observation date, though official finalisation can extend longer during data verification. Tropical cyclone activity in early June could suppress temperatures significantly, whilst any westerly wind pattern would favour higher readings. Traders should monitor seasonal forecasts from the Observatory and regional meteorological services in May 2026, as these will provide the first substantive signals about atmospheric conditions likely to prevail on that specific date.

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

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 Kalshi UK?

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

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?

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

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.