Highest temperature in Hong Kong on July 14?

Platform comparison

Market context

The Hong Kong Observatory will record the highest temperature on 14 July 2026 in degrees Celsius, with settlement tied to the official "Absolute Daily Max" figure published in the Daily Extract once data is finalised. The 0% crowd-implied probability suggests traders are either awaiting range options to be listed or treating this as a placeholder contract pending full market activation.

Hong Kong's July temperatures are remarkably consistent year-on-year. Historical data from the Observatory shows daily maxima in mid-July typically cluster between 32–34°C, with extreme readings above 35°C occurring in roughly 15–20% of years during this period. The 2015 heatwave pushed readings to 36.1°C on 10 July, whilst cooler summers have seen maxima settle around 31–32°C. This narrow seasonal band means the resolution range brackets will be critical to pricing; a 1°C difference between range thresholds can shift odds substantially given the tight historical distribution.

Traders should monitor the Hong Kong Observatory's seasonal forecasts and any El Niño or La Niña updates from late 2025 onwards, as these influence summer temperature patterns across the region. Typhoon activity in early July 2026 could also suppress temperatures if systems approach the territory. The settlement window closes at 12:00 UTC on 14 July 2026, giving traders only hours after the daily maximum is recorded to adjust positions. Cross-platform comparison between Polymarket and Kalshi will likely show divergence once range options populate; sportsbooks do not typically offer weather derivatives at this granularity, leaving prediction markets as the primary pricing mechanism.

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 PolyGram, 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

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 PolyGram. 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.

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.