Lowest temperature in Hong Kong on August 11?

Platform comparison

Market context

The event is the **lowest official temperature** recorded by the Hong Kong Observatory for Hong Kong on 11 August, with settlement tied to the final “Absolute Daily Min (deg. C)” once the day’s Daily Extract is published. Hong Kong’s August climatology is persistently warm and humid: the HKO’s 1991–2020 normals put 11 August at a mean minimum of 26.7°C, while other climatology sources place typical August night-time lows around the upper 20s Celsius[2][12].

A **0% YES** crowd price is best read as a stale or ultra-illiquid signal rather than a literal zero-probability weather forecast. Comparable cases show Hong Kong’s lowest temperatures in August rarely stray far from the mid-to-high 20s Celsius, and even a trough or shower-driven cool-down typically leaves the city well above temperate-market thresholds; in 2025, for example, the Observatory reported a minimum of 28.1°C by 9 a.m. on 11 August, while media coverage of a rain-cooled 11 August described 25.7°C as the month’s low and still unusually warm by historical standards[7][6]. That context matters because the market is resolved on the Observatory’s final published figure to one decimal place, so the live price should track whether traders expect an unusually cool morning, not just the seasonally normal baseline[1][2].

For accessibility, the main frictions are regulatory and onboarding rather than the weather data itself. German **GlüStV** rules can affect availability of online wagering products in Germany, while the **US CFTC** has broad reach over derivatives-style market access for US persons, which is why platform availability can vary by jurisdiction. “**No-KYC up to $1,500**” generally means a user may trade or withdraw within that cumulative limit without full identity verification, but that does not remove geo-blocking, sanctions screening, or local eligibility checks; for this market, it mainly lowers the entry threshold for small positions while keeping higher-volume access subject to verification.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Lowest temperature in Hong Kong on August 11? 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

On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.

FAQ

Is Polymarket legal in my country?

Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Is Kalshi Legal in California has a different geo footprint.

Can I trade anonymously?

Pseudonymously, yes — up to the KYC threshold. Is Kalshi Legal in California stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.

What happens during a tax audit?

You're responsible for documenting your trades. Is Kalshi Legal in California 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?

If regulation changes in your jurisdiction (e.g. prediction markets are banned), Is Kalshi Legal in California would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.