Highest temperature in Hong Kong on June 16?

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Market context

The Hong Kong Observatory will record the highest temperature reached on 16 June 2026, measured in degrees Celsius to one decimal place. This single daily maximum will determine which temperature band the market settles into, with resolution contingent on official publication in the Observatory's Daily Extract dataset. The settlement window closes at 12:00 UTC on that date, though actual resolution may occur later once the Observatory finalises and publishes the reading.

Historical June temperatures in Hong Kong cluster between 28–32°C for daily maxima, with occasional excursions toward 33–34°C during early-season heat waves. The 0% crowd probability suggests either extreme confidence in a specific range or insufficient liquidity to establish meaningful odds across all bands. June sits in Hong Kong's pre-monsoon period, when thermal conditions are typically warm but not yet at peak summer intensity; comparing adjacent years' data from the Observatory archives shows variability of ±2–3°C is normal for this date.

Traders should monitor the Hong Kong Observatory's seasonal forecasts and any issued heat advisories in the fortnight preceding 16 June 2026. Broader Asian weather patterns—particularly the onset timing of the Southwest Monsoon and any tropical systems tracking toward the region—will influence daily maxima. Real-time satellite imagery and the Observatory's own 9-day outlook, updated regularly on their website, will provide the most actionable signals as the date approaches. USDC settlement occurs post-publication of the official reading, so confirmation lag should be factored into position management.

Methodology

This page reads Highest temperature in Hong Kong on June 16? on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed for comparison. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

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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.

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