Highest temperature in Wellington on July 1?

Platform comparison

Market context

Wellington International Airport is starting the day around **12°C** with light north winds and fine conditions, so the highest temperature before the 12:00 UTC settlement cut-off will be driven by the usual daytime rise rather than any obvious heat event.[9][1] For a market that settles on the day’s peak at NZWN, the practical question is whether the airport gets enough solar heating and sheltered airflow to lift temperatures above the early-morning base into the mid-teens or higher.[1][9]

The current **0% YES** crowd view looks consistent with the fact that July is Wellington’s coldest month, with average highs around **54°F / 12°C** at Wellington International Airport.[3] Historical context at the airport matters because this venue is often wind-exposed and winter maxima can stay subdued; traders who automate around weather markets usually model the distribution from the station’s seasonal normal rather than anchoring on headline city forecasts, then update the path once the morning observation and hourly trend become available.[3][5]

For a programmatic approach, the key inputs are the hourly trajectory, the station-specific history page, and any shift in wind or cloud that changes the daytime ceiling.[5][6] The BBC forecast shows a sunny-intervals start with a gentle breeze, while the airport’s own forecast flags a transition from fine conditions to cloudier periods, which is the sort of intraday detail that can move the max temperature by a degree or two if the boundary layer stays mixed.[1][9]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Wellington on July 1? 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

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.

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