Highest temperature in Hong Kong on May 31?

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Market context

On 31 May 2026, the Hong Kong Observatory will record the day's highest temperature in Celsius to one decimal place. Polymarket currently prices this contract at 0% implied probability across all temperature bands, reflecting either a technical settlement lag or genuine uncertainty about which range will ultimately contain the official reading. The market settles against the "Absolute Daily Max" figure published in the Observatory's Daily Extract dataset, making the resolution deterministic once the data is finalised and available on their climate information system.

Hong Kong's May temperatures cluster reliably between 28°C and 32°C based on thirty-year climatological records. The city experiences late spring conditions during this period, with occasional heat spikes driven by subtropical high-pressure systems moving northward from the South China Sea. Historical daily maxima for late May range from lows around 26°C during cooler years to peaks exceeding 34°C during heat waves, though readings above 33°C remain relatively uncommon. The 0% pricing suggests traders may be awaiting clarity on the specific temperature bands offered, or the market may have recently opened without sufficient liquidity to establish meaningful probability distributions across the available ranges.

Traders monitoring this contract should track the Hong Kong Observatory's seasonal forecasts and any issued heat advisories as May 2026 approaches. The Observatory publishes monthly climate outlooks and issues special weather statements when significant temperature anomalies are anticipated. Broader regional weather patterns—particularly the timing and intensity of the South China Sea monsoon transition—will influence whether late May experiences typical conditions or elevated temperatures. Settlement depends entirely on the Observatory publishing finalised data; any delays in their Daily Extract release would postpone resolution beyond the stated window.

Methodology

This page reviews Highest temperature in Hong Kong on May 31? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket Legit? — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

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.

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.

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, Polymarket Legit? 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.