Highest temperature in Hong Kong on July 1?

Platform comparison

Market context

The real-world event is the official daily maximum temperature recorded by the Hong Kong Observatory on 1 July 2026, which will determine the settlement of this prediction market. Current crowd-implied probability for any specific range sits at 0% YES, yet trader consensus clusters firmly around 31–33°C, reflecting uncertainty between seasonal warmth and short-term synoptic shifts [1]. Historical data confirms July is Hong Kong’s hottest month, with the 2007 record holding the highest monthly mean maximum at 32.9°C [6]. Recent records show July 2023 was the city’s hottest month on record since 1884, featuring the most hot nights and days in a single month [2]. The seasonal outlook for June–August 2026 calls for above-normal temperatures amid the long-term warming trend, consistent with typical early-July daytime highs of ~31°C under prevailing southwesterly flow [1].

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 [1]. Short-term synoptic influences, such as the strength of southwesterly flow or transient cloud cover, will be the primary catalysts determining whether temperatures breach the 33°C threshold [1]. AccuWeather forecasts July 2026 daily highs ranging from 85°F to 93°F (approximately 29.4°C to 33.9°C), with the average high at 90°F (32.2°C) [3]. The market leans on the catalyst of seasonal warmth amplified by the long-term warming trend, rather than any specific political or campaign-finance declaration, given the weather-driven nature of the event [1]. No polling aggregator or news source is relevant here, as the outcome depends solely on meteorological data from the Hong Kong Observatory.

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 1? 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.

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.