Pronóstico: Highest temperature in Wellington on July 8?

Platform comparison

Market context

On 8 July 2026, the Wellington International Airport Station will record its highest temperature in degrees Celsius, a real-world event that currently trades at 0% probability for any specific outcome on Polymarket. This near-zero pricing reflects the market’s view that no single temperature range is sufficiently likely to justify a bet, despite July being Wellington’s coldest month. The contract resolves via conditional tokens on the Polygon network, settling in USDC once Wunderground publishes the official daily maximum.

Historical data frames this 0% probability as rational rather than anomalous. In July 2026, Wellington’s mean temperature sits at 6.4°C, with recorded lows of 1.8°C and highs of 12.5°C, making extreme outliers statistically improbable [3]. Comparable markets, such as the July 6 and July 7 Wellington temperature contracts, show coin-flip odds centred around 13°C and 14°C respectively, aligning with the historical distribution’s peak [1][2]. This consistency suggests the current 0% pricing is not a market error but a reflection of natural variability.

Traders should monitor NIWA’s heatwave announcements and the Wellington Kelburn station’s real-time readings, as recent records show the area reached 30.3°C during an unprecedented heatwave [4]. While such extremes are rare in July, any sudden shift in regional weather patterns—driven by southerly wind changes or marine anomalies—could alter the temperature distribution. The settlement window ends 12:00 UTC on 8 July 2026, so timely updates from Wunderground and NIWA are critical for assessing emerging catalysts before the market closes.

Sources: 1 · 2 · 3 · 4 · 5

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

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.

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.