Highest temperature in Chengdu on August 9?

Platform comparison

Market context

Chengdu’s airport temperature on 9 August will be resolved from the **Daily Observations** table on Weather Underground, so the relevant figure is the intraday maximum recorded at Chengdu Shuangliu International Airport rather than any headline “Day High & Low” value. Chengdu is climatologically warm and humid in August, with long-run average highs around 30–31°C and record highs in the high 30s to low 40s, so a mid-30s outcome is normal enough that the market is really about the day’s actual peak rather than an extreme-weather tail. [1][15][10]

The current crowd-implied **0% YES** should be read against the fact that August 9 in Chengdu usually sits well above the high-20s, and recent history includes many days near or above 32°C, with some much hotter outliers during heatwaves. Comparable-weather markets often swing late when the station logs an afternoon peak, so a near-zero price before the day is complete mainly reflects timing and uncertainty about whether the maximum will clear the market’s threshold band, not a statement that heat is impossible. [1][8][10]

For accessibility and compliance, this type of market sits in the broad regulatory area where German **GlüStV** treatment can matter for local users, and US **CFTC** reach can matter if activity is viewed as offering event contracts into the United States; those are jurisdictional questions, not trading signals. A “**no-KYC up to $1,500**” posture generally means a user may access the market and transact without identity verification until cumulative activity crosses that limit, which affects onboarding friction more than the underlying weather settlement logic. The practical catalyst is the station’s observation schedule and any late-day temperature spike, with the final resolution depending on the archived daily table after the settlement window closes.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in Chengdu on August 9? 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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UK Frequently Asked Questions

Do I need to KYC for Polymarket Legal UK?

Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.

Is Polymarket regulated by the UKGC?

No. Polymarket is not licensed by the UK Gambling Commission (UKGC). It is a decentralised prediction market operated under US regulation. UK traders can use it but do not benefit from UKGC dispute resolution or player protection requirements.

What are the HMRC tax rules on Polymarket profits for UK traders?

Polymarket profits are treated as cryptocurrency disposal events by HMRC. Each USDC settlement is a taxable event subject to Capital Gains Tax (CGT). For 2026/27, the CGT rate is 18% (basic rate) or 24% (higher rate). The annual CGT exemption is £3,000. Report via HMRC Self Assessment if your total crypto gains exceed £3,000 or proceeds exceed £50,000.

Does Polymarket KYC apply to UK users?

Yes. Polymarket requires KYC (Know Your Customer) verification for all users, including UK residents. You must provide a government-issued photo ID and a selfie. The process typically takes 5–10 minutes via their ID verification provider.

What is the legal difference between Polymarket and Betfair Exchange for UK traders?

Betfair Exchange is UKGC-licensed, meaning UK consumer protections apply and winnings are typically tax-free. Polymarket is not UKGC-licensed — it operates under decentralised blockchain rules. Profits from Polymarket are subject to HMRC CGT as crypto disposals. Choose based on your regulatory preference and tax situation.