Highest temperature in Wellington on July 24?

Platform comparison

Market context

The event is the day’s **highest air temperature at Wellington International Airport**, measured in degrees Celsius and then matched to the market’s settlement range. For a programme-driven approach, the cleanest method is to poll the airport’s station history feed or extract the day’s maximum from the downloadable chart data, then map that single value to the market’s brackets before the settlement window closes.[1]

A **0% YES** price implies the crowd sees the outcome as already effectively impossible or mispriced, rather than merely unlikely. That is a useful signal to sanity-check against comparable winter Wellington readings: late-July conditions at the airport are typically cool, windy and maritime, so the distribution of highs is usually clustered in the low teens rather than near summer-like values, which makes a wide upper range less probable than a narrow cooler band.[2]

For catalysts, the main inputs are local weather evolution rather than formal announcements: synoptic shifts, frontal passages, wind direction and cloud cover can move the daily maximum by several degrees, and Wellington’s exposed airport site can differ from inland city impressions. A trader running bots or conditional orders would usually watch the live station plot, any updated aviation or forecast guidance, and the Wunderground history page as the final arbiter, because settlement depends on the recorded airport maximum rather than a forecast headline.[1][2]

Sources: 1 · 2

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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Bot UK 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.