Highest temperature in Wellington on June 24?

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Market context

On 24 June 2026, Wellington International Airport will record its peak daily temperature, a figure that currently sits at a 0% crowd-implied probability for exceeding the highest market range. This near-zero pricing suggests the consensus expects a cool, typical June day, yet historical data reveals a volatile undercurrent. Last month, Wellington shattered its record June maximum with temperatures surpassing 19°C on the 1st and 2nd, proving that extreme warmth is not impossible in this season [5]. Average June highs typically dip from 57°F to 54°F, but the overcast conditions covering 42% of the month often mask sudden thermal spikes, creating a potential value spot for contrarian traders betting against the prevailing cold narrative [3].

The primary catalyst for this market is the immediate weather pattern, specifically the light rain and gentle southerly breeze forecast for today, which currently caps temperatures at 15°C [2]. Traders must monitor the MetService NZ updates, as their recent record-breaking alerts indicate that atmospheric instability can rapidly override seasonal averages [5]. While the current 13°C observation and rising pressure of 998mb suggest stability, the moderate 16 mph wind speed could either suppress or enhance thermal accumulation depending on cloud cover shifts [2]. The value lies in the possibility that the 19°C anomaly from early June was not a fluke but a signal of a warmer June trend, making the 0% probability a significant underdog position worth scrutinising before the settlement window closes in 2026.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

On Who Will Win, 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?

Who Will Win 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.

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.

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.