Highest temperature in Wellington on August 16?

Platform comparison

Market context

Wellington International Airport will record a maximum temperature on 16 August 2026, measured via the Daily Observations table on Weather Underground rather than the Day High & Low summary section. The settlement window closes at 12:00 UTC that day, meaning the highest reading captured at the airport station determines which temperature band resolves YES. Polymarket currently prices all temperature ranges at 0%, reflecting either a data gap or the market's nascent state; conditional tokens on Polygon will activate only once trading establishes meaningful liquidity and price discovery across the available brackets.

August in Wellington sits within the southern hemisphere's winter, when daily maxima typically range between 11–13°C, though the airport's coastal exposure occasionally produces sharper fluctuations. Historical August records show Wellington rarely exceeds 16°C during this month, with extreme highs around 19–20°C occurring only in exceptional years. The 0% crowd probability suggests traders have not yet engaged with the contract, leaving price discovery entirely dependent on first-mover activity and the specificity of Weather Underground's Daily Observations methodology, which can diverge from casual weather summaries.

New Zealand's MetService issues seasonal outlooks and monthly forecasts that influence longer-term temperature expectations; traders should monitor late July 2026 forecasts for any indication of anomalous warming patterns or cold fronts approaching the Wellington region. The airport station's measurement protocols remain consistent year-on-year, eliminating methodological uncertainty, though USDC settlement on Polygon depends entirely on accurate data extraction from Wunderground's primary source table at market close.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.

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.

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.

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%.