Highest temperature in Hong Kong on July 8?

Platform comparison

Market context

The Hong Kong Observatory forecasts a maximum of 31°C for 8 July 2026, with partly cloudy to showery conditions expected to keep temperatures between 27°C and 31°C[2]. This official projection aligns with the market’s leading outcome of 31°C, which currently holds a 31% implied probability, while the crowd-implied probability for any temperature exceeding the forecast range sits at 0%[2].

Historically, late May to mid-September represents Hong Kong’s warmest period, with daily highs averaging 33°C during these months[4]. July 2026 is projected to be normal to above-normal in temperature, consistent with the seasonal trend where 86°F to 94°F (30°C–34°C) is typical for daily highs[5][9]. The current 0% probability for higher extremes reflects the reliability of the Observatory’s forecast rather than an anomaly in seasonal patterns[2].

Traders should monitor the Hong Kong Observatory’s finalised “Daily Extract” for the “Absolute Daily Max (deg. C)” once data is published, as the market cannot resolve until this official figure is released[2]. The market leans on the Observatory’s forecast as its primary catalyst, with no scheduled political debates or campaign-finance disclosures influencing weather outcomes[3]. For real-time updates, the Observatory’s automatic regional weather station provides the latest max and min temperature readings for 8 July 2026[8].

Sources: 1 · 2 · 3 · 4 · 5

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 July 8? 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

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

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.

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 Trump Prediction 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.