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Highest temperature in Chongqing on August 4?

Regulatory snapshot for "Highest temperature in Chongqing on August 4?": platform geo-block status, KYC thresholds, tax implications.

32°C 100% 27°C or below 0% 28°C 0% 29°C 0% Volume: $77K Liquidity: $203K Closes: 4 Aug 2026
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Highest temperature in Chongqing on August 4?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Polymarket Tax UK) Pick
polygram.ink (preferred broker)
100% 0% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Trade this market →
Polymarket (direct)
polymarket.com
100% 0% 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.

OutcomeProbability
32°C100%
27°C or below0%
28°C0%
29°C0%
30°C0%
31°C0%
33°C0%
34°C0%
35°C0%
36°C0%
37°C or higher0%

Market context

The real-world event is the day’s **highest recorded temperature at Chongqing Jiangbei International Airport Station** on 4 August, and the market resolves to the temperature band containing that observed peak. On seasonal context alone, Chongqing is one of China’s hottest major cities in August, with typical daytime highs around 34°C and some references placing early-August maxima in the mid-30s Celsius, while historical extremes for the city reach above 40°C.[1][6][7][12][14]

The current **0% YES** crowd-implied probability is best read as a pricing anomaly rather than a temperature signal, because comparable August data show that Chongqing can and does produce very high maxima in early August, including a reported 41.8°C on 4 August 2025 in one weather-history source.[14] That said, this market is settled on the airport station reading from Wunderground, so citywide climate averages are only a rough guide; local airport conditions, cloud cover, rain, and afternoon convection matter more than the broader municipal climatology.[1][7][8][11]

For accessibility, the regulatory frame matters more than the weather pattern: markets offered without full identity checks are typically easier to access, but **“no-KYC up to $1,500”** means only that a platform may allow smaller trading volume before extra verification is requested, not that funds, tax reporting, or legal obligations disappear. In Germany, the **GlüStV** gambling framework can affect whether access is permitted from a consumer-law standpoint, while in the US the **CFTC** has potential reach where a contract is treated as a derivatives product, so traders often face jurisdictional and compliance constraints even on a weather market. Catalysts to watch are the midday local temperature path in Chongqing, any airport observation gaps, and the final Wunderground daily high once the settlement window closes; if afternoon heating is capped by rain or cloud, the realised band can stay below the city’s usual August peak.[1][8][19]

Sources: 1 · 2 · 3 · 4 · 5

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

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 Tax UK has a different geo footprint.
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.
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).
What if regulation changes?
If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Tax UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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