Highest temperature in Hong Kong on July 3?

Platform comparison

Market context

The Hong Kong Observatory has recorded a maximum temperature of 31°C for 3 July 2026, with a minimum of 27°C, confirming that the day’s peak heat falls within the expected summer range rather than an extreme outlier[1]. This single data point explains the current crowd-implied probability of 0% for the highest temperature exceeding the upper threshold of the market’s resolution range, as the observed value aligns precisely with seasonal norms.

Historically, July in Hong Kong sees daily highs between 86°F and 96°F (30°C to 36°C), with the average high hovering near 32°C, meaning a 31°C peak is typical rather than anomalous[4]. The seasonal forecast for July–September 2026 predicts normal to above-normal temperatures, yet the actual reading of 31°C sits comfortably within this band, reinforcing that the market’s 0% probability reflects a realistic assessment of historical patterns rather than a speculative error[3].

Traders should monitor the Hong Kong Observatory’s finalised “Daily Extract” for the specified date, as the market cannot resolve until this official data is published and confirmed[1]. While no immediate political catalysts such as campaign-finance disclosures or scheduled debates directly influence temperature readings, the market leans on the reliability of the HKO’s climate data as its primary settlement mechanism, with the next critical update expected once the Daily Extract is released[6]. Recent weather forecasts indicate mainly cloudy conditions with light rain patches, which may suppress peak temperatures further, supporting the current probability stance[8].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Hong Kong on July 3? 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

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

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.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Election Predictions UK route into the same order book at 0% fees.

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.