Highest temperature in Wellington on July 9?

Platform comparison

Market context

The real-world event hinges on the highest temperature recorded at Wellington International Airport on 9 July 2026, with current crowd-implied odds of 0% favouring any specific range above the baseline. Historical data confirms July is Wellington’s coldest month, averaging highs of just 12°C and lows of 4°C at the airport [4]. Current forecasts for today predict strong winds, rain, and temperatures hovering near 10°C, with wind speeds reaching 54km/h from the south [2][9]. This aligns with the 0% probability, as extreme heat in mid-winter Wellington is statistically negligible; the 11°C contract on a competing platform trades at nearly even odds, suggesting the market expects temperatures to remain close to the seasonal average rather than spike [1].

A power-user evaluating this market programmatically would monitor live Wunderground feeds for the 9 July daily maximum, setting conditional orders to trigger only if temperatures breach the 15°C threshold—a rare deviation for July. Traders should watch for sudden shifts in wind direction or pressure systems, as the current rising pressure of 996mb and south-south-westerly winds typically suppress temperature spikes [2]. While recent global news highlights record-breaking heat elsewhere, such as 95°F at O’Hare, these events are geographically isolated and irrelevant to Wellington’s microclimate [7]. No local announcements or schedules indicate artificial heating or weather anomalies; the market’s 0% stance reflects the robust dependency on natural winter conditions, where temperatures exceeding 15°C are virtually unheard of in Wellington during July.

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 Polymarket Review UK, which mirrors the Polymarket order book directly.

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

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 Polymarket Review UK. 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.

Do I need to KYC for this market?

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