Highest temperature in Hong Kong on June 23?

Platform comparison

Active sub-markets

Market context

Hong Kong’s June 23, 2026, high-temperature market hinges on whether the day’s peak heat will breach 31°C, despite the crowd currently assigning zero probability to that outcome. Long-term averages place daytime maximums at 30°C with high humidity, while the Hong Kong Observatory’s seasonal forecast for June–August 2026 predicts above-normal temperatures across the region[1][4]. Historical data shows July and August are typically hotter, averaging 32°C, but June still frequently sees spikes to 31°C or higher, especially when tropical storms pass nearby[1][3]. The current 0% YES probability appears misaligned with these patterns, suggesting either a data lag or an overreaction to recent cooler mornings.

Traders must monitor the Hong Kong Observatory’s Daily Extract for the finalized “Absolute Daily Max (deg. C)” figure, which will only be published after the settlement window closes on 23 June 2026 at 12:00 UTC[1]. Key catalysts include the timing of any tropical storm activity—June averages 1.4 storm-affected days—and real-time updates from the Observatory’s multi-model consensus forecast system[1][6]. Recent travel forums highlight early June typhoon concerns, which could suppress temperatures if a system approaches before 23 June[7]. No official announcement has yet confirmed a storm, but the above-normal temperature forecast increases the likelihood of heatwaves, making the 31°C threshold a plausible, if currently underpriced, outcome.

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 Champions League Prediction, 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

Is this market available outside the US?

Champions League Prediction 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'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 Champions League Prediction?

Zero. Champions League Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.