Highest temperature in Wellington on July 23?

Platform comparison

Market context

Wellington Airport’s recorded high on 23 July will be set by the warmest hour of the day at the airport station, with settlement tied to Wunderground’s daily history page rather than a local forecast model. Early market pricing at 0% YES implies traders see a very low chance that the day’s maximum lands in the contract’s upper temperature bands, and that is consistent with the winter climatology for Wellington, where July daytime highs are usually around 11°C and night-time readings are much lower.[5]

Comparable public forecasts point to a cool, unsettled day rather than anything close to a heat spike. Live weather pages for Wellington show temperatures clustered around 9°C to 13°C, with patchy rain or light showers and moderate winds, which usually caps the upside for the afternoon maximum unless there is an unusual break in the cloud or a brief warm northerly surge.[1][2][3][4] There is no obvious sportsbook-style line to compare here, so the useful comparison is between the near-zero prediction-market price and the broader weather consensus: the market is already heavily weighted towards a low maximum, and the main residual risk is a short-lived warm spell lifting the airport reading above the expected range.[1][5]

For traders, the key watchpoints are the morning and early-afternoon observation updates from Wellington Airport and any shift in wind direction, cloud cover, or rain timing, because those variables will determine whether the day peaks in the low teens or stays cooler. Airport-specific outcomes can diverge from city forecasts when northerlies strengthen or showers clear briefly, so the most relevant catalyst is not a headline event but the intraday weather evolution around the airport itself.[1][3][4]

Sources: 1 · 2 · 3 · 4 · 5

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, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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. 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.

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.

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.