Highest temperature in Hong Kong on June 6?

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Market context

Hong Kong's daily maximum temperature on 6 June 2026 will be recorded by the Hong Kong Observatory and published in their Daily Extract dataset. The settlement hinges on the official "Absolute Daily Max (deg. C)" figure, measured to one decimal place, which typically becomes available within days of the observation date. This is a straightforward instrumental reading with no discretionary interpretation—the Observatory's automated weather stations and manual verification procedures produce a single, definitive value each day.

June sits within Hong Kong's pre-monsoon season, when temperatures typically range from 28–33°C, though extremes occasionally exceed 35°C during heat waves. Historical data from the Observatory shows that early June maxima cluster around 31–32°C in most years, with outliers driven by high-pressure systems or tropical air masses. The 0% crowd probability suggests either low trading volume or genuine uncertainty about which temperature band will resolve—a common pattern for single-day weather markets where granular forecasting adds friction.

For programmatic traders, the key dependency is the Observatory's publication schedule. Data release typically occurs by mid-June, though delays occasionally extend to late June during periods of system maintenance. Automated resolution monitoring should account for this lag; conditional orders keyed to "market resolves" will fire only after the Observatory publishes the Daily Extract. Real-time weather forecasts from the Observatory's public API become increasingly accurate from 72 hours before the date, making that window the practical point for position adjustments. No scheduled weather alerts or typhoon warnings currently affect early June 2026 forecasts.

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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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.

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.

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.