Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Germany Legal) Pick polygram.ink (preferred broker) |
98% | 2% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
98% | 2% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 29°C | 98% |
| 30°C | 3% |
| 24°C or below | 0% |
| 25°C | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C or higher | 0% |
Market context
Shanghai's highest temperature on 13 August 2026 will be recorded at Pudong International Airport Station and measured in degrees Celsius. The resolution will draw from Weather Underground's Daily Observations table, which captures sub-hourly readings, rather than the Day High & Low summary section. This distinction matters: intraday peaks sometimes diverge from rounded daily summaries, and the market explicitly prioritises the granular data source.
August in Shanghai typically sees daily highs between 32–36°C, with occasional peaks above 37°C during heat waves. The 0% crowd probability suggests traders are either uncertain about the specific temperature range being offered or treating this as a calibration exercise rather than a directional bet. Historical August data from Pudong shows that extreme heat (above 38°C) occurs in roughly one year per decade, whilst temperatures in the 33–35°C band are modal. The settlement window closes at midday UTC on 13 August 2026, which is early evening Shanghai time, potentially excluding any late-afternoon temperature spike depending on the exact resolution methodology.
From a regulatory standpoint, this market falls within the German GlüStV framework for prediction markets and remains subject to CFTC oversight if US persons participate. The no-KYC threshold of $1,500 applies to individual positions; traders holding stakes above that figure or aggregating multiple positions should expect identity verification requirements. Weather markets typically attract lower regulatory scrutiny than financial derivatives, though cross-border participation still triggers jurisdiction-specific compliance obligations. Traders should confirm their local jurisdiction's stance on weather derivatives before committing capital.
Methodology
This overview of Highest temperature in Shanghai on August 13? 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. Polymarket Germany Legal has a different geo footprint.
- Do I need to KYC for Polymarket Germany Legal?
- 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.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Polymarket Germany Legal 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.
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Germany Legal would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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