Highest temperature in Beijing on August 16?

Platform comparison

Market context

Beijing's daily maximum temperature on 16 August 2026 will be measured at the Capital International Airport Station and recorded in Weather Underground's Daily Observations table. The settlement hinges on this specific data source rather than the Day High & Low summary, a distinction that matters for automated resolution and API-based monitoring. Traders building conditional orders or bots should configure queries to pull directly from the Daily Observations endpoint, as discrepancies between summary and detailed tables have historically caused resolution disputes on weather markets.

August in Beijing typically sees highs between 29–33°C, with occasional peaks above 35°C during heat waves. The 0% crowd probability suggests either extreme confidence in a narrow range or insufficient liquidity for higher brackets. Historical data from the China Meteorological Administration shows that mid-August temperatures in Beijing rarely exceed 37°C; the 2010 heat wave peaked at 40.6°C, but such events remain statistical outliers. Examining Weather Underground's historical records for 16 August across prior years provides a baseline: 2023 recorded 32°C, 2022 reached 31°C, and 2021 peaked at 30°C.

Traders should monitor China's National Meteorological Centre forecasts released in early August, which typically provide 10-day outlooks with reasonable accuracy for temperature ranges. Urban heat island effects around the airport station can inflate readings by 1–2°C relative to surrounding areas. Programmatic traders should establish data-pull schedules starting 48 hours before settlement to capture any late-model adjustments from Wunderground, as station maintenance or sensor recalibration occasionally occurs without advance notice.

Methodology

This page reviews Highest temperature in Beijing on August 16? 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 Review UK, which mirrors the Polymarket order book at 0% fees.

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

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%.