Highest temperature in Hong Kong on June 16?

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Market context

On 16 June 2026, the Hong Kong Observatory will record the day's maximum temperature in degrees Celsius. That single reading—published to one decimal place in the Observatory's Daily Extract—will determine which temperature band this contract settles into. The market currently prices all outcomes at 0% YES across available ranges, reflecting the standard state of long-dated weather contracts before meaningful historical data or seasonal models can anchor expectations. Settlement depends entirely on the Observatory publishing its official daily maximum for that date; the contract cannot resolve until that data is finalised and available on the Observatory's climate information system.

Hong Kong's June temperatures follow a consistent pattern shaped by the onset of the southwest monsoon and pre-typhoon season conditions. Historical data shows daily maxima in mid-June typically cluster between 31–34°C, with occasional peaks above 35°C during heat waves. The 2015 heat wave pushed June readings toward 36–37°C; more recently, June 2023 saw maxima consistently in the 32–34°C range. These precedents suggest the market's current flat pricing reflects genuine uncertainty rather than an absence of plausible outcomes.

Traders monitoring this contract should track seasonal forecasts from the Hong Kong Observatory and regional meteorological bodies as June 2026 approaches. The timing coincides with the early monsoon transition, when upper-level troughs and tropical moisture interact unpredictably. Any significant weather announcements—typhoon formation, heat dome development, or official seasonal outlooks—will likely shift conditional token valuations on Polygon as the settlement date draws closer.

Methodology

This page reviews Highest temperature in Hong Kong on June 16? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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 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 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 does it cost to trade on Polymarket UK?

Zero. Polymarket 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 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.