Highest temperature in Wellington on July 25?

Platform comparison

Market context

Wellington's maximum temperature on 25 July 2026 will be measured at the International Airport weather station and resolved against historical records from Wunderground. July falls within Wellington's winter season in the Southern Hemisphere, when daily highs typically range between 8–13°C, though the city's exposed coastal location and variable weather patterns mean forecasts carry considerable uncertainty even days in advance.

Wellington's winter temperatures have historically shown wide variance. Over the past decade, July maxima at the airport have ranged from below 5°C during cold snaps to occasional peaks above 15°C during mild spells. The 0% implied probability across prediction markets suggests traders are pricing in either extreme confidence in a specific temperature band or minimal liquidity in this contract. This divergence from typical weather-market activity warrants scrutiny: winter weather forecasting in Wellington remains notoriously difficult given the Southern Ocean's influence and local topography, making outright dismissal of any single range questionable.

Traders should monitor MetService's extended forecast releases in the days preceding 25 July, particularly any alerts regarding unusual pressure systems or frontal activity crossing the region. Seasonal patterns favour cooler outcomes during mid-winter, yet the absence of consensus among major meteorological services on specific temperature bands suggests meaningful uncertainty persists. Historical volatility in Wellington's winter maxima indicates that settlement could fall across multiple temperature ranges with non-trivial probability, despite current market pricing suggesting otherwise.

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 Best Prediction Markets UK, 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.

FAQ

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 Best Prediction Markets UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.