Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Germany Legal) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| 32°C | 100% |
| 27°C or below | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 36°C | 0% |
| 37°C or higher | 0% |
Market context
Chongqing’s airport station can still finish the day with a very high reading even if the broader city sees cloud or showers, because the market settles on the *highest* temperature recorded at Chongqing Jiangbei International Airport Station on 4 August 2026. The crowd’s 0% YES pricing implies the relevant outcome is currently expected to fall outside the YES range, but that should be read against a location-specific weather series rather than the citywide average. August is normally Chongqing’s hottest month, with typical highs around 34–35°C and frequent extremes much higher; historical August 4 data cited for Chongqing show a mean high of 34.6°C, while city records have reached 40°C-plus in summer heat events.[1][7][9]
For traders, the main catalysts are the afternoon maximum at the airport, any mesoscale rain or thunderstorm cluster, and whether official forecasts hold a high-heat signal through the local daytime peak. Recent reporting has already described Chongqing residents seeking shelter during a heatwave, which is consistent with the sort of conditions that can keep a daily high elevated even after a humid or cloudy start.[19] Settlement depends on the Wunderground history page for the airport station, so final prints matter more than app forecasts; in practice, that means late-day updates and the actual daily high on the station history page are the key dependency, not the city headline temperature.[15]
From a market-access perspective, German GlüStV concerns are about whether a platform’s offering is treated as gambling-like under German rules, while the US CFTC can reach event markets that function as derivatives or swaps if they fall within its jurisdiction. For a “no-KYC up to $1,500” structure, the practical meaning is limited onboarding friction for smaller positions: users can usually open and trade without full identity verification until cumulative activity or withdrawals cross that threshold, after which KYC becomes necessary. That affects accessibility, not settlement, and it does not change the underlying weather reference point for this market.
Methodology
This overview of Highest temperature in Chongqing on August 4? 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.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Germany Legal 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), Polymarket Germany Legal would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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