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 maximum temperature in degrees Celsius. The market currently prices all temperature ranges at 0% probability on Polygon, meaning no trader has committed USDC to any outcome cluster. Settlement depends entirely on the Observatory's published "Absolute Daily Max" figure from their Daily Extract database, rounded to one decimal place. The conditional token structure means whichever temperature band resolves TRUE will distribute the full pool to holders of that outcome.

Hong Kong's June climate sits at the threshold of the summer monsoon season. Historical data from the Observatory shows June daily maxima typically range between 29°C and 33°C, with occasional excursions to 34°C during early heat waves. The 0% crowd probability reflects genuine uncertainty rather than consensus that extreme temperatures are impossible—it signals the market awaits price discovery as traders begin positioning. Comparable June days from 2015 to 2024 show clustering around 31–32°C as modal outcomes, though individual variation remains substantial depending on whether monsoon systems have fully established.

Traders should monitor the Hong Kong Observatory's seasonal forecasts and any tropical cyclone activity in the Western Pacific during late May and early June, as these systems materially shift temperature patterns. The China Meteorological Administration's subseasonal outlook, typically released fortnightly, provides advance indication of whether high-pressure systems or monsoon troughs will dominate. Settlement cannot occur until the Observatory publishes finalised daily data, typically within 48 hours of the observation date, creating a hard deadline for market closure.

Methodology

This page reviews Highest temperature in Hong Kong on June 6? 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

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

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.

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.

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, 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.