Highest temperature in Hong Kong on June 2?

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Market context

Hong Kong's weather on 2 June will be shaped by the onset of the southwest monsoon and early-season heat patterns typical of early summer. The Hong Kong Observatory will record the daily maximum temperature, which typically ranges between 28–32°C during early June, though heat waves can push readings several degrees higher. Current crowd probability sitting at 0% suggests traders are awaiting clearer atmospheric signals before committing positions.

Historical data from the Hong Kong Observatory shows June maxima have occasionally exceeded 34°C during particularly intense heat episodes, though such extremes remain uncommon in the first week of the month. The median high for early June hovers around 30°C, with roughly 70% of years recording maxima between 28–32°C. Anomalously hot days—those exceeding 33°C—occur in approximately one in five years during this period, providing a baseline for assessing tail-risk scenarios.

Traders should monitor the Observatory's 7–10 day forecasts, which typically become reliable 5–6 days ahead of the target date. Atmospheric pressure patterns, tropical cyclone activity in the western Pacific, and the strength of the southwest monsoon flow will be critical determinants. Any developing heat ridge over southern China or delayed monsoon onset could elevate temperatures materially. The Observatory publishes daily forecasts and extended outlooks at weather.gov.hk, with final temperature data typically available within 24 hours of the observation date.

Methodology

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Resolution & payout

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FAQ

Where can I trade this market with the lowest fees?

On Prediction Today, 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.

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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.