Highest temperature in Hong Kong on May 26?

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Market context

On 26 May 2026, the Hong Kong Observatory will record the highest temperature reached that day in degrees Celsius. The market will settle to whichever temperature band contains the official daily maximum, drawn from the Observatory's finalised "Daily Extract" data. Settlement cannot occur until the Observatory publishes its confirmed readings for that specific date.

Hong Kong's May temperatures typically range between 28°C and 32°C, with occasional peaks above 33°C during heat waves or pre-monsoon conditions. Historical data from the Observatory shows that daily maxima in late May cluster around 30–31°C in average years, though the 1998 heat wave pushed readings to 36.1°C on 22 May. The current 0% crowd probability suggests traders are either awaiting clearer seasonal forecasts or treating this as a placeholder market pending more granular temperature-band options. Comparable May markets in previous years have shown modest volatility once April weather patterns emerge.

Traders should monitor the Hong Kong Observatory's monthly climate summaries and the progression of the Western Pacific subtropical high-pressure system, which typically intensifies through May and influences local temperatures. The El Niño or La Niña status heading into May 2026 will shape regional atmospheric conditions; current climate outlooks from the Japan Meteorological Agency and the National Oceanic and Atmospheric Administration provide leading indicators. Any significant tropical cyclone activity in the weeks preceding 26 May could alter local temperature patterns, though such systems are less common before June's peak typhoon season.

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Hong Kong on May 26? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

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 Trump 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.

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 Trump Prediction?

Zero. Trump Prediction 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, Trump 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.