Highest temperature in Guangzhou on August 14?

Platform comparison

Market context

Guangzhou's August weather remains locked in its summer peak, with daily highs consistently exceeding 33°C through mid-month. The 0% crowd probability suggests traders are either awaiting specific threshold data or treating this as a placeholder market pending clarification on which temperature range the market will actually resolve to—a critical detail given Weather Underground's distinction between Daily Observations and Day High & Low summaries.

Historical August records for Guangzhou Baiyun International Airport show temperatures regularly reaching 34–36°C, with occasional spikes toward 37°C during heat waves. The past five years' mid-August patterns indicate sustained high pressure systems dominating the region, making temperatures below 32°C exceptionally rare and readings above 37°C possible but not routine. This distribution should anchor expectations around the 33–36°C band as most probable, though the market's current zero probability signals either incomplete information or pending resolution criteria confirmation.

Traders should monitor China Meteorological Administration forecasts released in early August 2026, which typically provide 10-day outlooks with reasonable accuracy for maximum temperatures. Any tropical cyclone activity in the South China Sea could introduce volatility, though August typically sees such systems further east. The settlement window closes at midday UTC on 14 August, requiring resolution source confirmation from Weather Underground's Daily Observations table well before markets close—watch for any platform updates clarifying which specific temperature ranges are available for resolution.

Methodology

We track Highest temperature in Guangzhou 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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

UK Frequently Asked Questions

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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%.