Highest temperature in Hong Kong on June 24?

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Market context

The real-world event centres on the highest temperature recorded by the Hong Kong Observatory on 24 June 2026, with the market currently implying a zero per cent chance of the “YES” outcome. Historical data frames this probability: June 2023 saw Hong Kong’s hottest summer on record with a mean of 29.7°C, while June 2025 reached an absolute maximum of 35.6°C, the highest for that month in the city’s history [3][6]. The 2026 seasonal forecast explicitly predicts above-normal temperatures for June through August, with the Observatory warning that 2026 could rank among the top ten hottest years on record [1][7][9]. This regulatory backdrop means traders must consider German GlüStV implications, which restrict unlicensed betting platforms, and US CFTC reach, which governs commodity-based prediction markets. The “no-KYC up to $1,500” clause allows accessibility for smaller participants without identity verification, but only if the platform complies with these overlapping jurisdictions.

Key catalysts include the Hong Kong Observatory’s Daily Extract publication, which finalises the “Absolute Daily Max (deg. C)” for 24 June once data is confirmed [5]. Traders should monitor announcements on extreme heat warnings, particularly those affecting the New Territories, where temperatures have recently hit 37°C [4]. Recent news from the South China Morning Post confirms Hong Kong recorded its hottest day of the year so far at 34.6°C, underscoring the trend toward higher extremes [5]. The settlement window ends 2026-06-24T12:00:00Z, meaning resolution cannot occur until the Observatory publishes the official figure. Accessibility remains tied to compliance with KYC thresholds, ensuring that even with no verification up to $1,500, the market operates within legal boundaries under German and US regulations.

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

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 KYC 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 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 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 KYC 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.