Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Germany Legal) Pick polygram.ink (preferred broker) |
96% | 4% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
96% | 4% | 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 |
|---|---|
| 36°C | 96% |
| 37°C | 6% |
| 30°C or below | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 38°C | 0% |
| 39°C | 0% |
| 40°C or higher | 0% |
Market context
Shenzhen’s maximum temperature on 8 August will be taken from Weather Underground’s **Daily Observations** for Shenzhen Bao’an International Airport, not the headline day-high figure, so intraday readings matter more than the summary box. At 11:00 AM local time, the station was already reporting **93°F** (about **33.9°C**), with earlier readings of **83°F**, **88°F** and **93°F** across the morning, which puts the current crowd price of 0% YES well below what the live conditions have already implied.[9][17]
For historical framing, August in Shenzhen is normally hot, humid and often near the low 30s Celsius; WeatherSpark puts the typical August daily high around **89°F** and says highs rarely fall below **83°F** or exceed **93°F**, while other climate pages show average August highs around **32°C** and frequent rain.[16][19][20] That makes a finish in the upper temperature buckets more plausible than an unusually cool outcome, but the market settles only on the highest observed airport reading on the day, so a late-morning or early-afternoon peak is decisive.[9][10]
On the market-access side, German GlüStV treatment depends on whether the product is viewed as gambling-style participation or as a financial/prediction instrument; that classification affects whether local operators can offer it without German authorisation. In the US, the CFTC’s jurisdiction can reach event contracts linked to commodities, weather and other contingent outcomes if they are structured as swap or futures-style products, so venue and user location matter. “No-KYC up to $1,500” generally means a trader can access the market and withdraw within that cumulative threshold without identity checks, but larger balances, higher activity, or compliance triggers can still bring verification and geo-restriction screens into play.
Methodology
This overview of Highest temperature in Shenzhen on August 8? 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
- 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.
- 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. 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.
- 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).
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