Highest temperature in Hong Kong on July 18?

Platform comparison

Market context

The Hong Kong Observatory will record the highest temperature in degrees Celsius on 18 July 2026, with settlement determined by the official "Absolute Daily Max" figure published in the Observatory's Daily Extract. The market currently shows 0% implied probability across all temperature ranges, suggesting either insufficient trader participation or uncertainty about which bracket will ultimately contain the recorded maximum.

Hong Kong's July temperatures are among the year's most predictable. Historical data from the Observatory shows July daily maxima typically range between 31°C and 34°C, with extreme readings above 35°C occurring roughly once per decade during particularly intense heat waves. The 2015 heat wave produced readings near 36°C; more recently, July 2023 saw several days exceed 34°C. These historical patterns provide a baseline for evaluating which temperature bands carry genuine probability versus those representing tail-risk scenarios.

Traders should monitor meteorological forecasts released in early July 2026, particularly from the Hong Kong Observatory's own seasonal outlooks and regional weather models tracking Pacific typhoon activity and monsoon patterns. Tropical cyclone positioning significantly influences Hong Kong's July temperatures—systems bringing moisture can suppress peaks through cloud cover and rainfall, whilst high-pressure systems intensify heat. The Observatory publishes monthly climate summaries with preliminary data within days of month-end, though final "Absolute Daily Max" figures for specific dates may require additional verification before market settlement becomes possible.

Methodology

This page tracks Highest temperature in Hong Kong on July 18? 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 Trump Prediction 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

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.