Highest temperature in Hong Kong on June 8?

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Market context

Hong Kong's maximum temperature on 8 June 2026 will be recorded by the Hong Kong Observatory and published in their Daily Extract climate data. The settlement window closes at noon UTC on that date, though the actual temperature reading will not be finalised until the Observatory publishes its official records, which typically occurs within days of the observation period. The market currently shows 0% implied probability across all temperature ranges, suggesting either insufficient trading activity or technical display issues rather than genuine consensus that no temperature will be recorded.

June represents the onset of Hong Kong's summer monsoon season, with historical daily maxima typically ranging between 29°C and 33°C during this period. The Observatory's 30-year climate normals show a mean maximum of approximately 31°C for early June, with extreme records reaching 35°C or higher during particularly intense heat events. The 0% crowd probability across all ranges is anomalous given that temperatures in these historical bands occur reliably each year; comparable prediction markets on established weather platforms typically show distributed probabilities reflecting seasonal norms rather than concentrated positions at extremes.

Traders should monitor the Hong Kong Observatory's seasonal forecasts and any issued heat warnings in the weeks preceding 8 June, as these may signal deviation from typical patterns. The El Niño/La Niña status and broader Pacific pressure systems influence Hong Kong's early-summer temperatures materially. Settlement depends entirely on the Observatory publishing its Daily Extract data; any delays in their publication schedule could postpone resolution beyond the nominal settlement date, though this occurs infrequently.

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 Best Prediction Markets, 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 Best Prediction Markets, 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?

Best Prediction Markets 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 does it cost to trade on Best Prediction Markets?

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

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Best Prediction Markets triggers a quick verification flow that finishes in minutes.