Highest temperature in Hong Kong on June 10?

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Market context

Hong Kong's weather on 10 June 2026 will be measured against the Hong Kong Observatory's official daily maximum temperature record, with settlement determined by the absolute highest reading in degrees Celsius recorded that day. June sits firmly within Hong Kong's pre-monsoon season, when afternoon temperatures typically range between 28–32°C, though humidity levels often exceed 80 per cent.

Historical data from the Hong Kong Observatory shows June daily maxima have reached into the mid-to-high 30s Celsius during heat waves, with the territory's all-time June record standing at 36.3°C. The 0% crowd probability suggests traders are pricing in either a specific temperature threshold that rarely materialises in early June, or uncertainty about which resolution bracket the market has defined. Comparable June days over the past decade reveal that temperatures exceeding 34°C occur roughly once every three to four years during this month, making extreme heat plausible but not routine.

Traders should monitor seasonal weather patterns emerging in May 2026, particularly the onset timing of the southwest monsoon and any tropical systems tracking towards the South China Sea. The Hong Kong Observatory publishes extended forecasts approximately ten days ahead; any signals of an anomalous heat dome or delayed monsoon arrival would shift expectations materially. Settlement depends entirely on the Observatory's published daily extract data, which typically becomes available within days of the observation date.

Methodology

We track Highest temperature in Hong Kong on June 10? on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Champions League Prediction, 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.

What does it cost to trade on Champions League Prediction?

Zero. Champions League Prediction 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.

Do I need to KYC for this market?

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

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.