Highest temperature in Wellington on June 4?

Platform comparison

Active sub-markets

Market context

On 4 June 2026, the highest temperature recorded at Wellington International Airport will settle into one of several defined ranges. The 0% crowd probability suggests traders across platforms are either avoiding this market or pricing it as a near-certain outcome within a specific band—a common pattern for weather markets where historical norms heavily constrain outcomes. Wellington's winter temperatures in early June typically peak between 10–14°C, with extremes rarely exceeding 16°C or falling below 5°C. The settlement mechanism ties directly to Wunderground's historical data portal, which standardises temperature reporting across major weather platforms, though Polymarket's interface differs from Kalshi's in how it displays Celsius-only markets versus Kalshi's dual-unit toggle system.

Traders should monitor the Southern Oscillation Index and sea-surface temperatures around New Zealand in May, as these drive winter weather patterns weeks in advance. Recent MetService forecasts from late May 2026 will be the most actionable catalyst; any unusual atmospheric setup (such as a northerly flow or high-pressure system) could push temperatures toward the upper ranges. Unlike Betfair's decimal odds format, Polymarket and Kalshi both display implied probabilities directly, though Kalshi's tighter spreads and lower fees (0.2% maker, 2% taker versus Polymarket's variable structure) may attract sharper weather traders. Smarkets' European focus means less liquidity on Southern Hemisphere weather events. The settlement window closes at 12:00 UTC on 4 June, which corresponds to early evening in Wellington—capturing the day's peak temperature before any evening cooling.

Methodology

We read Highest temperature in Wellington on June 4? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). Polymarket Alternative routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Alternative, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket Alternative is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.