Highest temperature in Taipei on August 2?

Platform comparison

Market context

Taipei’s daytime high on the airport station contract is ordinarily a **hot, humid August number**, with climatology clustering around the low 30s Celsius rather than anything extreme. Historical guides put Taipei’s August average high near 32–33°C, while some daily August highs can reach 36°C, and one broader Taiwan weather guide notes that August commonly brings about 34°C in Taipei with frequent showers and occasional typhoons[1][2][6][12][14]. That makes a crowd-implied **0% YES** on a high-temperature band look materially detached from the base rate: the weather regime favours a warm daytime peak unless rain, cloud cover or an early storm suppresses heating.

Comparable cases matter here because Taipei’s summer ceiling is usually driven more by monsoon clouds and tropical systems than by cold anomalies. Time and Date lists an August climate high of 93°F, while whereandwhen cites a record high of 103°F and an average August top end around 94°F, reinforcing that the distribution is skewed well above the lower Celsius bands typically used in these contracts[4][11]. In cross-platform terms, sportsbook-style weather pricing would usually lean on the same seasonal statistics, so any sharp gap between an exchange-implied 0% and a more conventional weather expectation would point to either thin liquidity or an overreaction to near-term precipitation risk rather than a genuine cold-weather signal.

The main catalysts are the actual morning and early-afternoon observations at Taipei Songshan Airport, plus whether the day turns into a rain-led event before the daily maximum is set. August in Taipei is often wet, and multiple sources flag thunderstorms or typhoon risk as a meaningful constraint on highs, which can cap the outcome if cloud cover arrives early[1][6][9][12]. Traders should also watch official local forecasts and any tropical weather updates that affect northern Taiwan, because the market resolves on the highest temperature recorded on the station feed rather than on the forecast high, so late clearing can still produce a stronger reading than the headline forecast suggests[15].

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.

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.