Highest temperature in Wellington on August 3?

Platform comparison

Market context

Wellington Airport’s recorded peak temperature on 3 August will be the settlement point, so the practical question is whether the day ever produces an outlier warm spike rather than the more usual winter level. Wellington’s August climate is typically cool, with average highs around 12°C and lows near 9°C, and current observations around the city are still in single digits to low teens, which is consistent with a low-volatility setup for the day’s maximum. [2][11]

That is why a 0% crowd-implied “YES” reads as a strong statement that the market expects no meaningful upside surprise. For a programmatic trader, the cleanest approach is to treat this as a single-source daily high extracted from Wunderground’s history page for Wellington Intl Airport Station, then map the final observed maximum into the market’s temperature bands once the day is complete. The key historical frame is that Wellington in August is usually stable enough that the realised high often sits close to forecast ranges, so the main risk is not a broad trend but a brief sunbreak, downslope wind, or forecast miss that nudges the maximum a degree or two higher than implied. [2][9][11]

For catalysts, watch the morning and midday weather updates, any rapidly shifting wind regime, and whether the station’s live observations show warming into the settlement window; those are the variables most likely to move the day’s top reading. MetService and BBC Weather both show Wellington conditions can change through the day, with wind and showers being the usual drivers of short-lived deviations, so a bot or conditional order should key off the latest hourly forecast, observed temperature, and wind direction rather than a static daily average. [5][9][16]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

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

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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

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.