Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legal UK) Pick polygram.ink (preferred broker) |
99% | 1% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
99% | 1% | 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 |
|---|---|
| 28°C | 99% |
| 29°C | 1% |
| 20°C or below | 0% |
| 21°C | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 22°C | 0% |
| 23°C | 0% |
| 24°C | 0% |
| 25°C | 0% |
| 30°C or higher | 0% |
Market context
On 2 July 2026, the real-world event at Chongqing Jiangbei International Airport will be the recording of the day’s peak temperature in degrees Celsius, a figure that determines the outcome of the prediction market. Chongqing, famously one of China’s “Four Furnaces,” routinely sees July temperatures soar above 35°C, with extreme cases reaching 40°C or higher, and perceived heat often hitting 38°C due to humidity [2][4][5]. The current crowd-implied probability of 0% for any specific outcome suggests the market is either mispriced or awaiting critical data, as historical records confirm such highs are not anomalies but seasonal norms [3].
Comparable cases from Guangzhou’s July 2 market show traders pricing 34–37°C outcomes with significant confidence, reflecting ensemble forecasts and typical summer spreads [1]. In Chongqing, July and August are the hottest months, averaging 33°C, yet daytime highs frequently breach 35°C, making a 0% probability for any range inconsistent with climatic reality [2][5]. Traders should watch for official weather bulletins from the China Meteorological Administration and Wunderground’s daily updates, which will settle the market by 12:00 UTC on 2 July [3]. Recent forecasts from Trip.com note summer temperatures in Chongqing span 25–35°C, but extreme heat events remain a key dependency for this market’s resolution [7].
Regulatory accessibility hinges on jurisdiction: German GlüStV rules may restrict participation for residents, while US CFTC reach could impose compliance burdens for larger trades. The “no-KYC up to $1,500” threshold allows traders to access this market without identity verification, provided their stake remains under that limit, enhancing accessibility for those in permissive jurisdictions. However, this does not override local laws, and traders must ensure their participation aligns with national regulations. The market’s settlement window ends 2026-07-02T12:00:00Z, with Wunderground as the definitive resolution source [3].
Methodology
This overview of Highest temperature in Chongqing on July 2? 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 Legal UK?
- 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 Legal UK exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- 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 Legal UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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