Highest temperature in Wellington on August 10?

Platform comparison

Market context

Wellington is trading as a **0% yes** event on Polymarket, even though the live weather feed already shows a mild August day at Wellington International Airport and forecast highs in the low teens Celsius rather than anything extreme. Because this contract settles on the **highest temperature in Wunderground’s Daily Observations table** for Wellington Intl Airport Station, the relevant Polymarket mechanics are straightforward: USDC backs the position, the market is represented by conditional tokens on Polygon, and the final outcome depends on the observed Celsius reading rather than the broader city forecast. [4][2][13]

That zero price is best read against Wellington’s winter climatology, which usually clusters around low-teens daytime highs in August rather than heat spikes. Historical and forecast sources point to typical August highs near 11–12°C, with daily highs rarely moving far beyond the mid-teens and winds often making conditions feel cooler; in that context, a very high terminal reading is structurally unlikely, which helps explain why the crowd is effectively assigning no chance to the top bracket. [9][15][17][18]

For traders, the key catalysts are not speeches or economic releases but the station-level observation path through the rest of the day: any sharp clearing, föhn-style warming, or late-morning solar rise would matter more than the headline forecast. Weather Underground’s station page was already updating in real time for Wellington Intl Airport, and the market’s own wording makes the Daily Observations table the decisive source if it diverges from the summary display, so the last few hours before the settlement window closes are where the odds can still move. [4][10][13]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Wellington on August 10? 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

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

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 PolyGram 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.