Highest temperature in Wellington on July 8?

Platform comparison

Market context

On 8 July 2026, Wellington International Airport faces a day of strong winds and persistent rain, with temperatures hovering near 15°C. The current crowd-implied probability of 0% for the market “Highest temperature in Wellington on July 8?” reflects the overwhelming likelihood that the peak temperature will fall well below any threshold requiring a “YES” outcome. This aligns with real-time observations showing 12°C at midday, heavy rainfall, and wind speeds of 50km/h, conditions that suppress thermal accumulation.

Historically, July in Wellington is one of the coldest months, with average daily highs rarely exceeding 13°C. Comparable cases from recent years, including July 6 and 7 2026, confirm maximum temperatures capped at 13°C, reinforcing the market’s tight odds. Summer averages at the airport show highs increasing from 65°F to 69°F, but July remains firmly in the winter range, making any significant heat spike improbable.

Traders should monitor updates from Wunderground and the National Weather Service for any sudden shifts in cloud cover or wind direction, though current forecasts indicate no change. The settlement window ends 2026-07-08T12:00:00Z, and with no extreme heat warnings issued for the region, the catalysts for a temperature spike are absent. Recent news from Yahoo confirms record-breaking heat elsewhere, but Wellington remains unaffected, further validating the 0% implied probability.

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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

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 PolyGram. 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.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.