Highest temperature in Hong Kong on July 13?

Platform comparison

Market context

Hong Kong faces its peak summer heat on 13 July 2026, with the Hong Kong Observatory set to record the day’s absolute maximum temperature in degrees Celsius. The market currently implies a 0% chance of the temperature exceeding the highest defined range, suggesting traders expect a value well within standard July extremes rather than an outlier event. Historical data confirms July is Hong Kong’s hottest month, with average highs near 31.7°C (89°F) and record daily maxima often exceeding 35°C during exceptionally hot periods like July 2024, when the daily mean reached 30.8°C [1][6].

Traders should monitor the Observatory’s upcoming “Daily Extract” publication, which finalises the “Absolute Daily Max” figure for settlement. Recent forecasts for July 2026 indicate daily highs between 29°C and 34°C (84°F–94°F), aligning with the 0% implied probability for extreme outliers [2]. A key dependency is the absence of significant tropical cyclones or heavy rain systems, which typically suppress peak temperatures; Visual Crossing data shows a recent peak of 33.7°C (92.7°F) on 11 July 2026, reinforcing expectations of moderate heat rather than record-breaking conditions [3]. No immediate weather announcements suggest a sudden spike, keeping the probability of extreme ranges negligible.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Hong Kong on July 13? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Best Prediction Markets, which mirrors 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

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.