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Highest temperature in Chongqing on August 10?

"Highest temperature in Chongqing on August 10?" on Polymarket, Kalshi and Is Kalshi Legal in California — what traders need to know about platform choice, KYC and tax law.

34°C 100% 28°C or below 0% 29°C 0% 30°C 0% Volume: $78K Liquidity: $220K Closes: 10 Aug 2026
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Highest temperature in Chongqing on August 10?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Is Kalshi Legal in California) Pick
polygram.ink (preferred broker)
100% 0% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Go to the live market →
Polymarket (direct)
polymarket.com
100% 0% 0% Geo-blocked in US/UK/EU USDC, on-chain Go to the live market →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Go to the live market →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Go to the live market →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Go to the live market →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
34°C100%
28°C or below0%
29°C0%
30°C0%
31°C0%
32°C0%
33°C0%
35°C0%
36°C0%
37°C0%
38°C or higher0%

Market context

Chongqing is heading into one of its hottest periods, and the market will settle on the highest **observed** temperature at Chongqing Jiangbei International Airport, not the headline high from a forecast summary. August normals for the city sit in the mid-30s Celsius, with several climate sources describing August as the hottest month and peak readings often pushing into the upper 30s or low 40s in heatwave conditions.[2][4][6][8][17]

The current **0% YES** crowd price is well below the seasonal baseline, so it reads more like a lack of participation than a strong view that sub-bracket outcomes are impossible. Comparable Chongqing temperature markets on prediction platforms have resolved on exact observed daily highs, which underlines that late-day cooling, showers, or station-specific observations can matter more than citywide expectations.[3][20] For accessibility, the market’s “no-KYC up to $1,500” framing usually means smaller positions can be taken without full identity verification, while larger activity may still trigger checks; if the venue is offered to Germans, the GlüStV regime is relevant because it can restrict or reshape access to games and wagering products, and US-facing activity can fall within CFTC reach if it implicates derivatives-style trading rather than simple commentary.

The main catalysts are the airport observations themselves, the timing of any thunderstorms, and whether the daily sequence of reports confirms a late-afternoon peak before the settlement window closes. AccuWeather’s forecast for Chongqing on 10 August points to a hot, humid day with a 95°F/79°F range and possible thunderstorms, which would support temperature variability rather than a locked-in outcome.[12][14] Because the market resolves from Weather Underground’s Daily Observations table, traders should watch for the final reported high there, especially if rain, cloud cover, or a later update changes the apparent maximum.[3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in Chongqing on August 10? 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. Is Kalshi Legal in California 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.
Can I trade anonymously?
Pseudonymously, yes — up to the KYC threshold. Is Kalshi Legal in California 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. Is Kalshi Legal in California 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.
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