Highest temperature in Hong Kong on June 12?

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Market context

The Hong Kong Observatory will record the highest temperature on 12 June 2026, measured to one decimal place in Celsius. Polymarket currently prices all temperature ranges at zero, reflecting either insufficient liquidity or genuine uncertainty about which bracket will settle. The settlement window closes at noon UTC on that date, after which the Observatory's official daily maximum—published in its "Daily Extract" climate data—becomes binding. Traders cannot exit positions until the Observatory publishes verified data, which typically occurs within days of the observation date.

Hong Kong's June temperatures cluster predictably around 28–32°C, with occasional peaks above 33°C during heat waves. Historical records show that extreme heat events (above 35°C) occur roughly once per decade in early June, whilst temperatures below 27°C are rare. The 0% probability across all ranges suggests the market has not yet attracted sufficient volume to establish meaningful price discovery. Early June typically marks the transition into the southwest monsoon season, when humidity rises sharply but sustained extreme heat remains uncommon before mid-month.

Traders should monitor the Hong Kong Observatory's seasonal forecasts and any tropical cyclone activity in the western Pacific during early June 2026, as both influence temperature trajectories. The Observatory publishes monthly outlooks and weekly forecasts that can shift probability distributions weeks in advance. Liquidity on Polymarket's weather contracts tends to concentrate in the final 48 hours before settlement, so initial positions may face wide spreads. The USDC settlement on Polygon means traders must hold conditional tokens through the full observation period without early cash-out options.

Methodology

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

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Legit?, 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.

Is this market available outside the US?

Polymarket Legit? is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 Polymarket Legit??

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