Highest temperature in Wellington on July 6?

Platform comparison

Market context

Wellington’s highest temperature on 6 July 2026 is the real-world event this contract prices, with the market currently assigning a 0% probability to any outcome above the lowest range. On Polymarket, traders use USDC on Polygon to buy conditional tokens representing temperature bands, and the 8°C or below option dominates with $2,794 in volume against negligible backing for higher ranges [5]. The settlement hinges on Wunderground’s recorded high for Wellington Intl Airport Station, locking in once the first data point for the day is published [2].

Historically, July is Wellington’s coldest month, with average highs near 12°C (54°F) and lows around 7°C (47°F), making extreme warmth unlikely [7]. A comparable July 5 market shows 14°C as the frontrunner at 85–100% probability, suggesting the crowd expects mild but not cold conditions for early July [1]. The current 0% YES probability implies traders view any temperature above the lowest bracket as effectively impossible, consistent with the city’s typical winter climate.

Traders should monitor MetService New Zealand’s daily forecasts, particularly the shift in wind patterns; a recent update for July 7 cited a light northerly flow pushing highs to exactly 14°C, hinting that northerlies could influence July 6 as well [6]. No official temperature announcements are scheduled before settlement, so the key dependency is the Wunderground data release, which typically occurs within hours after midnight local time. Until that data point is published, the market remains static, with volume concentrated in the lowest temperature bands [2].

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

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 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 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 Legit? 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.