Highest temperature in Wellington on July 23?

Platform comparison

Market context

Polymarket is pricing the Wellington airport temperature contract at **0% YES** on USDC collateral on Polygon, so the market is effectively saying the chance of a qualifying high at Wellington Intl Airport on 23 July is negligible. The settlement uses conditional tokens, and the relevant print is the *highest* temperature recorded at the station during the day, not the afternoon peak or a generic city forecast.

For context, Wellington is one of New Zealand’s milder but wind-exposed climates, and winter highs are often restrained by maritime air and frequent cloud cover. WeatherBlaze’s history page for Wellington notes an all-time recorded high of **26.0°C**, in February 1982, which underscores how far July conditions normally sit from the sort of warmth that would move this market into higher bands. A 0% quote is consistent with a deep winter setup, especially in a city where temperature swings are usually muted by the sea.

What matters now is the live weather setup at Wellington Airport: any unexpected warm airflow, a strong nor’west event, or a short-lived foehn-style burst could lift the day’s maximum, but those are the only credible pathways for this contract to reach an upper range. Traders should watch the airport station observations and forecast updates through the UTC morning and local afternoon, because the market resolves from the station’s recorded daily high rather than from a single forecast headline.

Sources: 1

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.

FAQ

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.

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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.