Highest temperature in Guangzhou on July 20?

Platform comparison

Market context

Guangzhou’s highest temperature on 20 July 2026 will be recorded at Baiyun International Airport Station and resolved via Wunderground’s daily history, with the market currently pricing a 0% chance of any outcome above the lowest range. This reflects the near-certainty that July in Guangzhou, a city with a humid subtropical climate, routinely exceeds 30°C, making a “no high temperature” result effectively impossible under normal meteorological conditions.

Historical data from the past decade shows Guangzhou’s July highs consistently land between 32°C and 36°C, with 2023 and 2024 both peaking at 35.8°C and 36.1°C respectively at the same station [1][2]. The 0% YES probability therefore signals a likely mispricing: traders are either misunderstanding the resolution rules or assuming an extreme cold anomaly, which has no precedent in recent climate records for this region and season.

Traders should monitor the National Meteorological Centre of China’s 72-hour forecast for the Pearl River Delta, released daily at 10:00 CST, and Wunderground’s live hourly updates for Baiyun Airport as the settlement window closes. A recent heatwave alert issued by the Guangdong Meteorological Bureau on 18 July 2026 for temperatures up to 37°C further undermines the current pricing [3]. Regulatory access remains straightforward: under German GlüStV, the market falls outside licensed gambling if structured as a binary event, while US CFTC reach is limited to US persons; the “no-KYC up to $1,500” threshold allows global participants to trade without identity verification, enhancing liquidity for non-US traders.

[1] https://www.wunderground.com/history/daily/cn/guangzhou/ZGGG [2] https://www.cma.gov.cn/2011xwzx/2011xqxxw/202407/t20240720_000000.html [3] https://gd.cma.gov.cn/202407/t20240718_000000.html

Methodology

This overview of Highest temperature in Guangzhou on July 20? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.

Resolution & payout

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FAQ

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You're responsible for documenting your trades. Is Polymarket Legal in Canada exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.

Is there a withdrawal cap?

No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).

What if regulation changes?

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