Pronóstico: Highest temperature in Wellington on July 9?

Platform comparison

Market context

Wellington on 9 July 2026 is forecast to hit a high of 5°C, with strong winds and rain dominating the day, making a temperature above 9°C virtually impossible under current conditions. This starkly contrasts with the crowd-implied 0% probability for a "YES" outcome on the prediction market, which instead prices "11°C" as the leading result at 65% on Polymarket, suggesting the market is betting on a significant deviation from the immediate forecast or a data discrepancy.

Historically, July is Wellington’s coldest month, with average highs around 14°C (54°F) and lows near 4°C (47°F), yet extreme cold snaps have occasionally pushed highs below 5°C, as seen in recent years when the airport recorded just one day surpassing 25°C this summer instead of the typical five. The current 65% probability for 11°C aligns with the climatological median for early July, but the 0% implied chance for any temperature above 9°C in the "YES" market appears to ignore the natural variability that has produced 10–12°C days in past winters, as noted in NIWA’s analysis of Wellington’s summer anomalies.

Traders should monitor real-time updates from Wunderground and the National Weather Service for any sudden shifts in wind patterns or cloud cover that could elevate temperatures, as well as official announcements from NIWA regarding potential microclimate effects. A recent BBC Weather report confirms the current 5°C forecast, but conditional tokens on Polygon remain sensitive to on-chain USDC liquidity flows that could amplify price swings if new data contradicts the prevailing model, making the settlement window ending 2026-07-09T12:00:00Z a critical point for resolution.

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Methodology

We track Pronóstico: Highest temperature in Wellington on July 9? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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 Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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 Polymarket Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.