Highest temperature in Hong Kong on July 24?

Platform comparison

Market context

Hong Kong’s weather is the underlying event here, and the market turns on the highest official temperature the Hong Kong Observatory records for 24 July. July is normally the city’s hottest month, with average daytime highs around 32°C and a humid, storm-prone setup that can either cap temperatures with cloud and rain or, on clearer days, allow a sharp spike well into the mid-30s.[1][2]

The 0% implied probability looks easy to read against that climate background: a zero has little meaning in a one-day temperature market unless the settlement window has already passed or the data are unavailable. Comparable late-July readings show Hong Kong can still produce extreme heat despite the season’s wetness; the Observatory once logged 35.6°C at its office and 37°C in some districts during a July heat event, illustrating why outright dismissal of a hot outcome is risky when conditions align.[3] WeatherSpark’s July profile also shows little day-to-day change in solar input and consistently warm conditions, which supports a broad distribution clustered around the low-30s rather than a hard ceiling.[2][4]

For traders, the main catalyst is the Observatory’s daily extract for 24 July, since the market cannot resolve until the official “Absolute Daily Max” is published. In the short term, the key dependency is whether Hong Kong spends the day under bright, hot conditions or gets relief from showers, cloud or a tropical disturbance; local reporting from DotDotNews noted the Observatory was already forecasting around 35°C for 24 July, pointing to heat as the active theme rather than a cool escape.[5]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Hong Kong on July 24? 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. For users geo-blocked from Polymarket directly, brokers like Election Predictions UK provide a 0%-fee route into the same order book.

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

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.