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Highest temperature in Beijing on July 25?

"Highest temperature in Beijing on July 25?" on Polymarket, Kalshi and Is Polymarket Legal in Canada — what traders need to know about platform choice, KYC and tax law.

31°C 100% 26°C or below 0% 27°C 0% 28°C 0% Volume: $66K Liquidity: $260K Closes: 25 Jul 2026
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Highest temperature in Beijing on July 25?

Platform comparison

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

Outcome probabilities

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

OutcomeProbability
31°C100%
26°C or below0%
27°C0%
28°C0%
29°C0%
30°C0%
32°C0%
33°C0%
34°C0%
35°C0%
36°C or higher0%

Market context

Beijing's weather on 25 July 2026 will be measured at the Capital International Airport Station, with the highest temperature recorded that day determining the resolution bracket. July is peak summer in Beijing, with historical daily highs typically ranging from 29–35°C, though extreme heat events have pushed readings above 40°C in recent years. The settlement window closes at midday UTC, meaning traders must account for the full calendar day's temperature swing before the market locks.

Historical precedent shows that summer temperature prediction markets in northern China have clustered around 32–36°C ranges during comparable periods. The 0% crowd probability currently assigned suggests either extreme confidence in a specific temperature band or insufficient liquidity in competing brackets. Beijing's urban heat island effect and proximity to the airport's measurement station—located in a built-up area—typically yields readings 1–2°C higher than surrounding rural zones. Recent summers (2023–2025) have seen occasional heat waves push July peaks toward 38–40°C, establishing a material tail risk that the market's current odds may underweight.

From a regulatory standpoint, this market's accessibility depends on jurisdiction. Under Germany's GlüStV framework, weather derivatives require specific licensing; EU traders should verify their platform's authorisation. US CFTC oversight applies to prediction markets with real-money settlement, though enforcement varies by state. Platforms offering no-KYC access up to $1,500 notional exposure typically classify weather markets as low-risk, permitting participation without identity verification below that threshold—a practical advantage for small-stake traders testing forecast models before larger commitments.

Methodology

This overview of Highest temperature in Beijing on July 25? 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 Polymarket Legal in Canada 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 Polymarket Legal in Canada 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.
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).
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