Highest temperature in Shanghai on August 19?

Platform comparison

Market context

Shanghai's highest temperature on 19 August 2026 will be recorded at Pudong International Airport Station and resolved via Weather Underground's Daily Observations table rather than its summary display. The settlement window closes at 12:00 UTC on that date, meaning final readings must be captured before noon London time. August in Shanghai typically sees daily highs between 32–35 °C, though extreme heat events pushing toward 40 °C have occurred in recent summers.

Historical August temperatures at Pudong show that readings above 37 °C occur roughly once every three to five years during the month. The current 0% crowd probability suggests traders are pricing in either a cooler-than-average August or confidence that the specific range offered does not capture the expected outcome. Shanghai's August heat is driven by subtropical high-pressure systems and proximity to the East China Sea; anomalies typically emerge from delayed monsoon patterns or intensified continental air masses. Comparable August 2023 data recorded a peak of 36.9 °C on the 13th, whilst August 2022 saw several days above 38 °C.

From a regulatory standpoint, this market operates under different compliance frameworks depending on trader location. German traders fall under GlüStV (Glücksspielstaatsvertrag) provisions governing prediction markets, which require operator licensing. US CFTC jurisdiction applies to US persons, though prediction markets on non-financial events occupy a grey zone distinct from derivatives oversight. Platforms offering no-KYC access up to $1,500 USD typically apply this threshold per account per calendar year; traders exceeding that volume face standard identity verification. For this Shanghai temperature market, accessibility remains subject to your jurisdiction's local rules and the host platform's registration status.

Methodology

This overview of Highest temperature in Shanghai on August 19? 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

How are winnings taxed?

Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.

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.

Are prediction markets gambling?

Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.

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.