Highest temperature in Beijing on August 6?

Platform comparison

Market context

The payout depends on the **highest temperature recorded at Beijing Capital International Airport** on 6 August 2026, as logged on Wunderground, so the practical task is to map the day’s observed peak into the market’s temperature bands before the 12:00 UTC settlement window closes. Polymarket’s live book already shows the market clustered around the mid-30s Celsius, with 36°C and 34°C near the front, while the venue’s own reference page indicates the market resolves against the airport station rather than a city-wide average.[5]

In Beijing, August is normally the hottest part of the year, with typical daytime highs around 30°C to 31°C and a hot, humid profile that can support short-lived spikes above the seasonal mean.[2][17][18] A useful way to read the current 0% implied YES on any single band is to treat it as a dispersion problem: if the day finishes close to forecast, the highest reading will usually sit in the high-20s to mid-30s Celsius, but a stronger heating pulse can still push the airport’s max into the upper-30s.[1][3][18] Historical and seasonal guides therefore matter less than the live intraday forecast envelope, because this market settles on the day’s *maximum*, not the daily average.[2][16]

For a programmatic trader, the main catalysts are the morning evolution of the Beijing forecast, any updates to local cloud cover or rain chances, and the timing of the airport’s reported peak relative to the UTC settlement cut-off. A bot or conditional order set-up would typically poll the Wunderground history page and compare the latest airport observations against threshold bands, then adjust exposure if the realised maximum is tracking one bracket below or above the market’s frontrunner. Recent public forecasts have already shown Beijing around the mid-30s Celsius, which keeps the upper outcomes live if the afternoon heats up as expected.[3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Beijing on August 6? 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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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%.