Highest temperature in Wellington on August 16?

Platform comparison

Market context

Wellington's maximum temperature on 16 August 2026 will be recorded at the airport station and resolved against Weather Underground's Daily Observations table. The crowd currently assigns zero probability to any outcome occurring, suggesting either extreme confidence in a particular temperature band or minimal trading activity. August sits in Wellington's late winter period, when daily highs typically range between 10–13°C, though the city's exposed location and variable weather patterns mean outliers are not uncommon.

Historical August temperatures at Wellington Airport show considerable variability. Over the past two decades, August highs have ranged from 7°C during cold southerly outbreaks to 17°C during warm northerly flows. The median August maximum hovers around 11°C, but the distribution is wide enough that any single day can deviate substantially. The zero probability reading suggests the market may be waiting for clearer seasonal forecasting or that traders have not yet engaged with this specific date. Given Wellington's reputation for unpredictable weather and the eight-month lead time until the settlement date, the absence of meaningful probability allocation appears premature rather than reflective of genuine certainty.

Traders should monitor long-range weather models as August 2026 approaches, particularly indicators of whether a high-pressure system or cold front dominates the South Island during that week. The Met Service's monthly outlooks, typically issued six to eight weeks ahead, will provide the first substantive signal. Until then, the zero probability reflects market inactivity rather than forecasting consensus, leaving potential value for those willing to price in Wellington's historical August volatility.

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 Who Will Win, 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 Who Will Win. 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%.