Highest temperature in Hong Kong on June 26?

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Market context

The real-world event is the highest temperature recorded by the Hong Kong Observatory on 26 June 2026, measured in degrees Celsius to one decimal place. Current crowd-implied probability sits at 0% YES, suggesting traders believe the outcome will fall outside the specific range being wagered on. Historical seasonal forecasts for June–August 2026 indicate above-normal temperatures for Hong Kong, with daily highs typically ranging from 30°C to 33°C during heatwaves, as confirmed by the Hong Kong Observatory’s latest outlook [1][7]. Comparable June records show average highs near 29°C, but recent heat events have pushed temperatures to 33°C, framing the 0% probability as a likely mismatch between the wagered range and expected climatic conditions [1][4].

Traders should monitor the Hong Kong Observatory’s “Daily Extract” publication schedule, which finalises the “Absolute Daily Max” data after the settlement window ends on 26 June 2026 at 12:00 UTC [5]. Key catalysts include any official heatwave advisories or temperature spikes announced in the coming days, particularly given the current forecast of 33°C from Tuesday to Friday [7]. Regulatory accessibility is shaped by German GlüStV implications, which restrict unlicensed prediction markets, and US CFTC reach, which enforces strict KYC for platforms exceeding $1,500 in user activity. The “no-KYC up to $1,500” threshold means this market remains accessible to smaller traders without identity verification, provided they stay within that limit, aligning with Polymarket’s brand-legal-focused approach to compliance [1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket KYC UK, which mirrors the Polymarket order book directly.

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

Is this market available outside the US?

Polymarket KYC 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.

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 KYC UK?

Zero. Polymarket KYC 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 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.