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Highest temperature in Guangzhou on August 1?

"Highest temperature in Guangzhou on August 1?" — odds, fees, regulatory status. Polymarket Legal UK as a Polymarket alternative.

31°C 100% 25°C or below 0% 26°C 0% 27°C 0% Volume: $75K Liquidity: $129K Closes: 1 Aug 2026
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Highest temperature in Guangzhou on August 1?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Polymarket Legal 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
31°C100%
25°C or below0%
26°C0%
27°C0%
28°C0%
29°C0%
30°C0%
32°C0%
33°C0%
34°C0%
35°C or higher0%

Market context

The relevant real-world event is the **highest temperature at Guangzhou Baiyun International Airport Station on 1 August 2026**, with settlement based on the day’s maximum Celsius reading in Wunderground’s daily history for that station. August in Guangzhou is normally hot, humid and rain-prone, with typical average highs around 32–33°C and monthly weather guides describing it as the city’s hottest month, so a print in the low-to-mid 30s would be unsurprising on climatology alone.[1][4][13][19]

The current **0% YES** implied probability sits well below the historical pattern, and that matters because the market is not asking whether it will be hot, but whether the day’s maximum lands in the specific range that resolves to YES. Comparable August references for Guangzhou show many days above 33°C, including examples in the 35–36°C area, which suggests that low probabilities can quickly become stale if a forecast keeps pointing to a routine summer heat peak.[5][10] By contrast, heavy rain, cloud cover or a maritime airflow can pull the airport maximum down several degrees even in August, which is why airport-station markets can diverge from broad city averages.[14][16]

For accessibility, this type of contract also sits inside a regulatory and platform-access frame: German GlüStV treatment can restrict or require additional checks for locally classed gambling-style products, while US CFTC reach is relevant where a venue or user activity falls within US derivatives oversight. A **no-KYC up to $1,500** rule typically means small-value participation can be entered with lighter identity checks, improving access for low-stakes trading, but it does not remove venue limits, geo-restrictions or any verification triggered by larger deposits, withdrawals or compliance review. For the near-term catalyst set, traders should watch local forecast updates, typhoon/rainfall tracks and any last-minute airport observations that could shift the day’s high; with settlement tied to Wunderground’s station data, the late-morning to early-afternoon temperature trend is usually the key signal.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in Guangzhou on August 1? 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 Legal UK has a different geo footprint.
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.
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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