Highest temperature in Wuhan on August 11?

Platform comparison

Market context

Wuhan's highest temperature on 11 August 2026 will be recorded at Tianhe International Airport Station and resolved against Weather Underground's Daily Observations table. The settlement window closes at 12:00 UTC on that date, with USDC payouts distributed to holders of the correct temperature range. Current crowd pricing reflects 0% probability across all outcomes, suggesting either extreme uncertainty or insufficient liquidity depth in the order book at present.

August in Wuhan typically sees daily highs between 32–36 °C, with occasional peaks above 37 °C during heat waves. Historical data from 2015–2023 shows that mid-August temperatures in the city rarely exceed 39 °C, though the 2022 summer brought sustained readings above 40 °C across central China. The 0% implied probability on this market likely reflects the early settlement window—traders may be waiting for nearer-term weather forecasts before committing capital, as meteorological confidence improves substantially within 7–10 days of the event date.

Traders should monitor China Meteorological Administration updates and regional heat advisories issued in late July and early August. El Niño or La Niña conditions, tracked by NOAA, influence East Asian summer patterns and can shift Wuhan's temperature regime by 1–3 °C. Funding rates on BTC and ETH futures remain stable, indicating no macro tail-risk repricing that might correlate with broader market disengagement from weather derivatives. Weather Underground's data feed updates daily; discrepancies between the Daily Observations and Day High & Low sections have historically been minor but should be cross-checked at settlement.

Methodology

Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

UK Frequently Asked Questions

What are crypto prediction markets?

Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.

What does a transaction cost on Polygon?

Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.

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%.