Highest temperature in Guangzhou on August 14?

Platform comparison

Market context

Guangzhou's peak temperature on 14 August 2026 will be measured at Baiyun International Airport Station and resolved against Weather Underground's Daily Observations table. The current crowd-implied probability of 0% suggests traders expect the highest temperature to fall below the lowest available range threshold, though the specific temperature bands have not been disclosed in this market brief. Resolution hinges on the primary data source—the Daily Observations table rather than the Day High & Low summary—a distinction that matters when Weather Underground's systems occasionally display minor discrepancies between real-time station data and aggregated summaries.

Guangzhou's August climate is remarkably consistent. Historical records from the airport station show daily highs clustering between 32–35°C during mid-August, with extreme readings rarely exceeding 37°C. The 0% implied probability suggests the market has priced in a temperature floor well above typical August maxima, or traders are hedging against an unusually cool day driven by tropical storm activity. August is Guangzhou's peak typhoon season; cyclonic systems can suppress temperatures by 3–5°C, though such events typically generate headline coverage weeks in advance.

Traders monitoring this contract should track tropical cyclone forecasts from the China Meteorological Administration and regional weather alerts issued in early August 2026. Any named storm system approaching southern Guangdong province would materially shift expectations. Conversely, absence of significant weather systems would reinforce the current pricing, as typical August conditions would likely produce daily highs within the range thresholds the market has already priced to near-zero probability.

Methodology

This page reviews Highest temperature in Guangzhou on August 14? 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 Best Prediction Markets UK, 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

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 Best Prediction Markets UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

What are the best prediction markets for UK traders in 2026?

For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.