Highest temperature in Shenzhen on August 14?

Platform comparison

Market context

On 14 August 2026, the highest temperature recorded at Shenzhen Bao'an International Airport will fall into one of several defined ranges, measured in degrees Celsius via Weather Underground's Daily Observations table. The market currently prices all YES outcomes at 0%, reflecting either extreme confidence in a particular temperature band or insufficient liquidity to establish meaningful pricing across the range options. Polymarket settles this contract on USDC via Polygon once the settlement window closes at 12:00 UTC on the resolution date, with conditional tokens representing each temperature bracket redeemable for their respective payouts.

Shenzhen's August climate presents relatively constrained variability. Historical data from the airport station shows mid-August highs typically cluster between 31–34°C, with extreme readings rarely exceeding 36°C or falling below 29°C. The 0% pricing across all outcomes suggests the market may lack sufficient trader participation to calibrate probabilities, or reflects a consensus that one specific range dominates expectations so heavily that alternatives trade at negligible value. Comparable August markets at other Chinese coastal stations have shown similar concentration, with tropical monsoon patterns limiting daily swings during this period.

Traders monitoring this contract should track any tropical cyclone activity in the South China Sea during early-to-mid August 2026, as storm systems can suppress temperatures significantly. Shenzhen's airport weather station operates continuously, and Weather Underground's Daily Observations table updates automatically, eliminating ambiguity around the resolution source. The distinction between the Daily Observations and Day High & Low sections matters operationally; traders should verify which table Weather Underground prioritises during any data discrepancies.

Methodology

We track Highest temperature in Shenzhen on August 14? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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%.