Highest temperature in Taipei on August 2?

Platform comparison

Market context

Taipei’s hottest reading at Songshan Airport on 2 August will be the settlement variable, and the market is effectively asking where the day’s maximum lands within the contract’s Celsius bands. The crowd has it at **0% YES**, which is a stark divergence from the broader weather picture: seasonal guides put Taipei’s August average high around **32–33°C**, with occasional days pushing into the mid-30s, while short-range forecast pages for early August show highs in the low 30s rather than anything extreme.[1][3][9][15]

That makes the current pricing look materially lower than the climatology would suggest. August is usually Taipei’s hottest, muggiest stretch, with frequent rain and a typhoon tail risk, but the distribution is still centred well above the low-30s, not near cooler bands.[2][4][13] For comparison, a neighbouring Polymarket contract on 1 August was already skewed towards **36°C** and **37°C**, indicating that traders have recently treated upper-30s outcomes as live in this part of the calendar even if the exact day-to-day line-up shifts with cloud cover and convection.[11]

For this contract, the key catalysts are the morning and midday forecast updates, any Central Weather Administration typhoon or heavy-rain advisories, and whether convective showers suppress the airport maximum before the 12:00 UTC close. At 07:00 UTC, Taipei is still early morning local time, so the market can reprice quickly as the daytime heating forecast firms up; recent early-August outlooks have shown highs around **32–34°C** with rain chances embedded in the pattern, which would favour a band in the low-to-mid 30s rather than an outlier hot reading.[14][1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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

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'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.

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.

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.