Highest temperature in Hong Kong on August 2?

Platform comparison

Market context

Polymarket is pricing this Hong Kong temperature contract at **0% YES** right now, so the market is effectively saying none of the listed Celsius bands is being assigned meaningful value on conditional tokens settled in USDC on Polygon. The event itself is straightforward: the Hong Kong Observatory’s final “Absolute Daily Max (deg. C)” for 2 August 2026 will determine which temperature range wins, once the Daily Extract is published and the market can resolve.

For context, Hong Kong is in its hottest stretch of the year in August, and broad forecast pages for this month point to daytime highs in the low 30s Celsius, with AccuWeather showing August 2026 daily highs around 86°F to 92°F, or roughly 30°C to 33°C, and other climate summaries clustering the month’s maximum around 31°C.[1][4] That makes the likely resolution band highly sensitive to whether the Observatory records a value near the upper end of the seasonal range, especially if a hot spell pushes the reading to 32°C or above. Recent local reporting has also highlighted Hong Kong’s hottest-day records being broken in 2026, which is relevant because it shows the season can still produce brief spikes above the norm.[5][14]

A trader watching this market should focus on the Hong Kong Observatory’s daily readings and the timing of the finalised extract, not just generic weather apps, because the market only resolves from the Observatory’s published figure.[9][19] Typhoon or thunderstorm signals can also matter indirectly by capping daytime heating, while clear-sky, low-wind afternoons tend to favour the upper temperature bands.[8] In hands-on Polymarket terms, the main catalysts are the official morning and afternoon updates, any local weather alerts, and the eventual confirmation in the Observatory archive that locks the contract outcome.[9][19]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Hong Kong on August 2? 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 Scam?, 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 Scam?. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 Polymarket Scam? trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.