Highest temperature in Beijing on August 16?

Platform comparison

Market context

Beijing's highest temperature on 16 August 2026 will be measured at Capital International Airport Station and resolved against Weather Underground's Daily Observations table. The settlement window closes at 12:00 UTC on that date, locking in the official reading. This is a straightforward weather observation contract with USDC settlement, typical of on-chain meteorological derivatives that have grown in volume as institutional traders hedge climate-adjacent exposure across commodity and energy portfolios.

Historical August temperatures in Beijing show a consistent pattern: daily highs typically range between 29–33°C during mid-August, with occasional spikes above 35°C during heat waves. The 0% crowd probability suggests either extreme confidence in a specific temperature band or minimal trading activity; comparable weather markets on prediction platforms rarely show zero probability unless the underlying event has already partially resolved or liquidity is concentrated in adjacent ranges. Beijing's August climate is relatively predictable compared to monsoon-dependent regions, which typically explains tighter probability distributions and lower volatility in similar contracts.

Traders should monitor China Meteorological Administration forecasts released in early August and any official heat warnings issued by Beijing municipal authorities. Recent summers have seen occasional extreme heat events; the 2023 Beijing summer recorded multiple days above 35°C. Real-time satellite data from NOAA and local weather station updates become material in the final 48 hours before settlement. Funding rates on weather derivative indices have remained modest, indicating this contract sits outside major macro positioning flows, though any broader climate narrative shift affecting commodity markets could shift trader attention toward temperature extremes.

Methodology

This page reads Highest temperature in Beijing on August 16? on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

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

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

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%.