Highest temperature in Taipei on August 16?

Platform comparison

Market context

On 16 August 2026, the highest temperature recorded at Taipei Songshan Airport Station will fall into one of several defined ranges measured in degrees Celsius. The market currently prices all YES outcomes at 0%, meaning traders are pricing in either extreme confidence in a specific temperature band or minimal liquidity across the contract. Settlement hinges on Weather Underground's Daily Observations table rather than the Day High & Low summary, a distinction that matters when station instruments record peak readings at different times or when data corrections occur post-publication.

Taipei's August temperatures have historically clustered between 32–37°C, with extreme heat events pushing toward 38–40°C during particularly intense heat waves. The city's position on the northern Taiwan coast means sea-breeze patterns can moderate afternoon peaks, though urban heat island effects around the airport station frequently elevate readings above surrounding areas. August 2023 saw Taipei record 38.8°C, whilst August 2024 peaked at 36.9°C, providing recent benchmarks for the range of plausible outcomes this market encompasses.

Traders should monitor tropical cyclone activity in the Western Pacific during early-to-mid August 2026, as storm systems can suppress temperatures significantly or, conversely, create stagnant high-pressure conditions that amplify heat. The Central Weather Administration's seasonal forecasts, typically released in July, will signal whether La Niña or El Niño conditions are expected. Additionally, any equipment maintenance or recalibration at Songshan Airport Station announced before settlement could affect how readings are recorded, though such notices rarely emerge with sufficient advance warning to influence market pricing materially.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

UK Frequently Asked Questions

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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%.