Highest temperature in Beijing on August 16?

Platform comparison

Market context

Beijing's weather on 16 August 2026 will depend heavily on the East Asian summer monsoon pattern and any tropical cyclone activity in the Western Pacific during mid-August. The 0% crowd probability suggests traders are either uncertain about the specific temperature range or awaiting clearer seasonal forecasts as the date approaches. Current atmospheric conditions and model consensus from late July or early August will be critical inputs, as summer heat waves in Beijing can push daily highs above 35°C, whilst monsoon troughs occasionally moderate temperatures into the high 20s.

Historical August data from Beijing Capital International Airport shows considerable variability. Between 2015 and 2024, mid-August highs ranged from 24°C to 37°C depending on whether the monsoon was active or a high-pressure system dominated. The most common outcome clusters around 30–34°C, though extreme heat events pushing above 36°C occur roughly once every three to four years during this period. This range reflects the transition zone between peak summer heat and the onset of autumn weather patterns.

Traders should monitor China Meteorological Administration forecasts released in the week preceding 16 August, particularly any alerts for heat waves or tropical cyclone impacts. International model guidance from the European Centre for Medium-Range Weather Forecasts and the US Global Forecast System will converge more reliably within 10 days of the target date. The settlement source—Weather Underground's Daily Observations table from Beijing Capital International Airport—is the definitive measure; discrepancies with summary high-low figures have occurred historically and will be resolved in favour of the detailed observations record.

Methodology

We track Highest temperature in Beijing on August 16? 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

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'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%.