Highest temperature in Hong Kong on July 11?

Platform comparison

Market context

Hong Kong will record its peak temperature for 11 July 2026 at the Hong Kong Observatory station, with the market resolving to the specific Celsius range containing that official daily maximum. Today, Polymarket prices the YES outcome at 0% implied probability, suggesting traders see virtually no chance the event will trigger the specific condition tied to that bin, likely because the temperature bin in question is implausibly low for mid-summer in the region.

Historical July data frames this near-zero pricing as rational rather than speculative. The average high for Hong Kong in July sits between 32°C and 28°C, while the seasonal forecast for July–September 2026 predicts normal to above-normal temperatures driven by ENSO conditions [2][3][4]. Past peaks in early July 2026 have already reached 30°C under cloud cover, and forecasts for the month routinely show highs up to 94°F (34.4°C), making a resolution in a lower temperature bin statistically negligible [1][2].

Traders should monitor the Hong Kong Observatory’s 48-hour and 24-hour forecast updates released daily, as these are the primary price movers for temperature contracts [1]. The market cannot settle until the official “Daily Extract” publishes the finalized “Absolute Daily Max” for 11 July, a dependency that locks resolution until data is confirmed [1]. On-chain mechanics remain standard: trades execute in USDC on Polygon using conditional tokens, with liquidity thin enough that a single well-placed order can shift odds meaningfully, as seen in comparable July 2026 temperature markets [1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Scam?, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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.

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.

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.

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.