Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legal UK) Pick polygram.ink (preferred broker) |
94% | 6% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
94% | 6% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 24°C | 94% |
| 25°C | 5% |
| 26°C | 1% |
| 23°C or below | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C or higher | 0% |
Market context
The underlying event is the **highest temperature** recorded at Chongqing Jiangbei International Airport on 3 August 2026, with the market settling on the Celsius band that contains that day’s peak reading from Wunderground. August is normally Chongqing’s hottest month, and published climate guides put typical August highs around **33–34°C**, with some daily peaks in the mid-30s even before heatwave outliers are considered.[2][9]
That history explains why the current crowd-implied **0% YES** looks more like a pricing artefact than a statement about the weather itself: a late-summer maximum in the low-to-mid 30s is common, and Chongqing’s all-time extreme has reached **43°C**, showing the city can produce very high daytime readings when conditions align.[3][20] For market-reading purposes, the practical comparison is not with annual extremes but with the distribution of ordinary August afternoons, where one extra degree can shift the result into a different settlement band.[2][9]
For traders, the main catalysts are operational rather than political: the airport station’s official daily high must be posted by the resolution source, and any short-lived heat spike before the 12:00 UTC settlement cut-off can matter more than the full-day average. On access, the market sits in a regulatory environment where German **GlüStV** restrictions can affect availability for users in Germany, while the US **CFTC** perimeter remains relevant because prediction-market products with event-settlement features can attract scrutiny if offered to US persons. “No-KYC up to $1,500” generally means small balances or volumes may be accessible with lighter identity checks, but that does not remove geo-blocking, sanctions screening, or local compliance limits, so accessibility for this specific market can still vary by jurisdiction and account status.
Methodology
This overview of Highest temperature in Chongqing on August 3? 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. Polymarket Legal UK 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. Polymarket Legal UK 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 Legal UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
Trade Highest temperature in Chongqing on August 3? on Polymarket Legal UK
Live order book, 0% fees, USDC settlement in seconds.
Open live market →