Highest temperature in Guangzhou on July 10?

Platform comparison

Market context

The underlying event is the peak daily temperature recorded at Guangzhou Baiyun International Airport on 10 July 2026, a date historically synonymous with extreme heat in southern China. Current crowd-implied probability of 0% for the highest temperature range suggests a market mispricing, as July is consistently the hottest month in Guangzhou, with average highs near 33°C and peaks frequently reaching 39°C[2][4]. Historical data confirms daily highs rarely fall below 30°C (85°F), with the highest average high occurring on 25 July at 33°C (91°F)[1]. Recent records show China experienced its hottest July on record since 1961, and Guangzhou specifically saw its longest summer since that year, indicating a strong upward trend in thermal maxima[5][7].

Traders should monitor real-time Wunderground updates for the Baiyun station, as the resolution source is explicitly tied to this dataset[8]. No scheduled political debates or campaign-finance disclosures directly influence weather outcomes, but the market is leaning on the established climatic catalyst of mid-July heat domes common in the Pearl River Delta. The absence of any cooling weather systems in recent forecasts, coupled with the record-breaking summer trends noted by Xinhua News Agency, reinforces the expectation of temperatures well above the 0% implied threshold[7]. The primary dependency is the reliability of the Wunderground feed, which must be watched continuously as the settlement window closes on 12:00 UTC on 10 July 2026.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Guangzhou on July 10? 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.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Election Predictions UK route into the same order book at 0% fees.

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.

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.