Highest temperature in Hong Kong on June 14?

Platform comparison

Active sub-markets

Market context

Hong Kong's highest daily temperature on 14 June 2026 will be recorded by the Hong Kong Observatory and published in their Daily Extract dataset. The settlement hinges on the official "Absolute Daily Max" figure in degrees Celsius to one decimal place, with resolution delayed until that data is finalised and made public. The 0% crowd probability reflects the market's current state rather than any meteorological certainty; this is a straightforward factual resolution tied to a single, verifiable measurement.

Mid-June in Hong Kong typically falls within the early monsoon season, with historical daily maxima ranging between 29°C and 34°C depending on weather patterns. The Hong Kong Observatory's 30-year climate normals show average highs around 31–32°C for this period, though individual years vary. Traders should compare how different platforms price uncertainty around seasonal variance: Polymarket's implied probability display differs from Kalshi's decimal-odds presentation, and fee structures (Polymarket's 2% taker fee versus Kalshi's variable model) affect breakeven thresholds across temperature bands.

The key dependency is the East Asian summer monsoon's timing and intensity in early June 2026. Traders monitoring meteorological forecasts from late May onwards will have better visibility on whether conditions favour cooler, wetter patterns or hotter, drier spells. Cross-platform liquidity varies significantly on weather markets; Betfair and Smarkets typically show deeper order books on established weather contracts, whilst niche temperature-band markets may see wider spreads on smaller platforms. Settlement cannot occur before the Observatory publishes its data, typically within days of the measurement date.

Methodology

This page compares Highest temperature in Hong Kong on June 14? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Where can I trade this market with the lowest fees?

On Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees. 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 it cost to trade on Kalshi Alternative UK?

Zero. Kalshi Alternative UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.