Highest temperature in Hong Kong on July 7?

Platform comparison

Market context

The real-world event is the daily maximum temperature recorded by the Hong Kong Observatory on 7 July 2026, which will determine the settlement of a prediction market focused on whether that peak reaches a specific threshold. Current crowd-implied probability for the "YES" outcome sits at 0%, suggesting traders believe the temperature will fall below the defined range, despite seasonal data indicating Hong Kong’s July highs typically range from 86°F to 95°F (30°C to 35°C)[3].

Historical July records and the Observatory’s own seasonal forecast for 2026 project normal to above-normal temperatures, with daily highs averaging around 30.4°C in early July[4][10]. Comparable markets on Polymarket show the leading outcome for highest temperature is 30°C at 40%, closely followed by 31°C at 37%, reinforcing that 30°C is a plausible and frequently observed peak[2]. The 0% YES probability appears inconsistent with this climatological baseline, possibly reflecting a mispricing or an overly narrow threshold in the market definition.

Traders should monitor the Hong Kong Observatory’s finalised "Daily Extract" for the Absolute Daily Max, which will be published after the settlement window closes on 12:00 UTC, 7 July 2026[4]. Key catalysts include the broad trough of low pressure expected to affect the South China Sea in early July, which may increase moisture transport and influence peak temperatures[4]. No scheduled political debates or campaign-finance disclosures are directly relevant to this weather event, but the market leans on the Observatory’s official data release as the definitive settlement catalyst, as cited in their seasonal forecast documentation[5].

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 7? 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

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

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.

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.

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.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.

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.