Highest temperature in Hong Kong on July 28?

Platform comparison

Market context

Hong Kong's summer temperatures in late July typically peak between 32–34°C, with the Observatory recording absolute daily maxima that occasionally exceed 35°C during heat waves. The settlement window closes at midday on 28 July 2026, meaning the final temperature reading must be published by the Hong Kong Observatory's Daily Extract before resolution can occur. The 0% crowd probability suggests either insufficient liquidity or a misalignment between market structure and expected outcomes; historical July data shows the territory rarely records temperatures below 30°C during this period, making lower-range outcomes statistically improbable.

Hong Kong's summer weather patterns are driven by the Pacific subtropical high-pressure system and the onset of the southwest monsoon. The Observatory publishes daily climate data with a lag of several days, so traders automating resolution checks should account for publication delays beyond the settlement window. Recent meteorological conditions and seasonal forecasts from the Japan Meteorological Agency or regional climate models can inform positioning, though short-term temperature variance in July remains substantial. Programmatic approaches should flag the dependency on official Observatory publication timing; markets cannot resolve until the "Absolute Daily Max" figure appears in the relevant Daily Extract, creating a hard constraint on settlement regardless of observed conditions.

Methodology

This page reviews Highest temperature in Hong Kong on July 28? 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 Polymarket Bot UK, 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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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?

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

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.