Highest temperature in Hong Kong on June 10?

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Market context

The Hong Kong Observatory will record the highest temperature in degrees Celsius on 10 June 2026, with settlement determined by the official daily maximum reading published in the Observatory's climate data portal. The market currently shows 0% probability assigned to any outcome, suggesting traders have not yet engaged with this weather-specific contract ahead of the settlement window closing at midday on the specified date.

Hong Kong's June temperatures are shaped by the onset of the southwest monsoon and pre-typhoon season conditions. Historical data from the Observatory shows June daily maxima typically range between 28°C and 34°C, with occasional spikes above 35°C during heat waves. The 2023 June maximum reached 34.6°C, whilst 2022 peaked at 33.8°C. These precedents establish the baseline against which traders should calibrate their expectations; early-season heat waves occasionally push readings into the upper 30s, but sustained temperatures above 36°C remain uncommon for this month.

Traders should monitor the Meteorological and Geophysical Bureau of Macau and regional weather forecasts from late May onwards, as these typically provide 10-day outlooks that can signal anomalous heat patterns. The Hong Kong Observatory publishes extended forecasts on its website, with particular attention warranted to any alerts regarding heat waves or tropical cyclone activity that might suppress temperatures. The settlement window's noon closure means final readings must be confirmed by the Observatory's daily climate extract before resolution occurs, making timeliness of data publication a secondary dependency for contract closure.

Methodology

This page tracks Highest temperature in Hong Kong on June 10? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. Election Predictions UK routes every trade through to Polymarket — at 0% fees.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

Where can I trade this market with the lowest fees?

On Election Predictions 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.

Is this market available outside the US?

Election Predictions UK 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 Election Predictions UK?

Zero. Election Predictions 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 fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.