Highest temperature in Hong Kong on July 2?

Platform comparison

Market context

Hong Kong faces its peak summer heat today, with the Hong Kong Observatory set to record the absolute daily maximum temperature for 2 July 2026. The market currently assigns a 0% probability to any outcome above the baseline, a stark contrast to the Polymarket frontrunner of 32°C at 45% and 33°C at 28%[1]. This divergence suggests the crowd-implied 0% may reflect a specific, narrow interpretation of the data release rather than a consensus on the weather itself.

Historically, July in Hong Kong sees daytime maximums averaging 31°C, with very high heat and humidity typical of the season[2]. The Hong Kong Observatory’s seasonal forecast for July to September 2026 predicts normal to above-normal temperatures, influenced by the latest ENSO status and climate models[3]. In comparable years, temperatures have frequently reached 32°C or higher, making July one of the hottest months with average highs around 32°C[8]. The 0% probability appears inconsistent with these long-term averages and the current seasonal outlook.

Traders should monitor the Hong Kong Observatory’s "Daily Extract" for the finalized "Absolute Daily Max (deg. C)" once published, as the market cannot resolve until this data is available[1]. The immediate forecast indicates mainly cloudy conditions with light rain patches, potentially moderating temperatures to a range of 16°C to 20°C for the next few days[5]. The market is leaning on the official data release from the Observatory as the primary catalyst, with no scheduled political debates or campaign-finance disclosures influencing this weather-specific outcome. The Hong Kong Observatory remains the definitive source for the resolution[3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Hong Kong on July 2? 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

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.

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.

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.