Highest temperature in Shenzhen on August 17?

Platform comparison

Market context

On 17 August 2026, the highest temperature recorded at Shenzhen Bao'an International Airport will determine the settlement outcome for this market. The contract currently trades at 0% on Polygon, indicating traders assign negligible probability to any single temperature band resolving YES. The market uses Weather Underground's Daily Observations table as its authoritative source, not the summary high-low figures, a distinction that matters when comparing historical records across platforms. Settlement occurs at 12:00 UTC on the resolution date, giving traders a fixed window to observe the final recorded temperature before conditional tokens convert to USDC.

Shenzhen's August climate presents a narrow historical band for temperature extremes. The city's August average high sits around 32–33°C, with recorded highs rarely exceeding 36°C in the past two decades. The 0% pricing reflects the market's implicit assumption that whatever temperature range the market creator selected sits outside historical norms for mid-August conditions. Traders should examine the specific temperature thresholds embedded in the market's outcome categories; if the lowest bracket begins at 35°C or higher, the current pricing becomes more defensible given climatological data.

Tropical cyclone activity represents the primary catalyst that could shift August temperatures downward. The Western Pacific typhoon season peaks in August, and any system tracking toward Guangdong Province would suppress daytime highs through cloud cover and precipitation. The China Meteorological Administration publishes seasonal outlooks and typhoon forecasts; traders monitoring these resources can adjust positions if a significant system emerges in the forecast window approaching late August 2026.

Methodology

This page reviews Highest temperature in Shenzhen on August 17? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Scam?, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

UK Frequently Asked Questions

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.