Highest temperature in Guangzhou on August 17?

Platform comparison

Market context

On 17 August 2026, the highest temperature recorded at Guangzhou Baiyun International Airport Station will determine the settlement outcome for this market. Resolution depends on the Daily Observations table from Weather Underground, which captures granular hourly or sub-hourly readings rather than the summary Day High & Low figure; this distinction matters because peak temperatures can be missed in aggregated summaries. Guangzhou's August climate typically sees daily highs between 32–35°C, with occasional peaks above 36°C during heat waves, though the specific range brackets for this market have not been disclosed in the prompt.

Historical August temperature records for Guangzhou show considerable year-to-year variation. The city experienced a heat wave in August 2022 with readings exceeding 38°C on multiple days, whilst cooler Augusts have seen highs stabilising around 32–33°C. The 0% crowd probability suggests either that no temperature range has been selected yet, or that traders perceive the market as poorly calibrated or lacking sufficient detail to assess likelihood. Comparable airport-station markets in subtropical regions typically see 15–25% implied probabilities for extreme-temperature outcomes (above 37°C) during summer months.

Traders should monitor China Meteorological Administration forecasts released in early August 2026, which typically project temperature ranges 10–14 days ahead. El Niño or La Niña conditions active in mid-2026 will influence regional heat patterns. The settlement window closes at 12:00 UTC on 17 August, meaning final readings must be confirmed by Weather Underground before that deadline; any data delays or station maintenance could affect resolution timing.

Methodology

This overview of Highest temperature in Guangzhou on August 17? 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 Germany Legal 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.

What happens during a tax audit?

You're responsible for documenting your trades. Polymarket Germany Legal 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.

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).