Highest temperature in Hong Kong on July 16?

Platform comparison

Market context

Hong Kong faces its peak summer heat on 16 July 2026, with the market betting on whether the Hong Kong Observatory will record a daily maximum temperature within a specific Celsius range. The current 0% implied probability for the “YES” outcome suggests traders view the proposed range as implausibly low or misaligned with historical extremes for mid-July in the region.

Historically, Hong Kong’s highest temperatures in July frequently exceed 33°C, with the all-time record for the month reaching 36.1°C in 2017 [1]. Comparable cases from the past decade show that daily maxima on 16 July typically fall between 31°C and 34°C, making a sub-30°C outcome highly unlikely under normal climatic conditions. This historical pattern explains why the market has priced in near-zero confidence for lower temperature brackets.

Traders should monitor real-time data releases from the Hong Kong Observatory, particularly the “Daily Extract” published after 12:00 UTC, which will confirm the official “Absolute Daily Max” [1]. No scheduled political debates, campaign-finance disclosures, or conventions influence this weather event, as the market is purely climatological. The sole catalyst is the finalisation of the Observatory’s data, which will settle the market once published. Until then, the 0% probability reflects the absence of any credible forecast supporting the stated range.

Sources: 1

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 16? 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.

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.

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.