Highest temperature in Taipei on July 11?

Platform comparison

Market context

Taipei Songshan Airport is currently under heavy rain and strong winds from Typhoon Bavi, with afternoon and evening forecasts predicting 72 mm of precipitation and wind speeds of 11 m/s on Saturday 11 July [4][9]. This severe weather system suppresses daytime heating, making a high-temperature record for the day statistically improbable and explaining the crowd-implied 0% probability for any significant heat spike [8].

Historical July data for Taipei City typically shows highs near 30°C, but typhoon conditions drastically alter this baseline by introducing cloud cover and rain that prevent solar radiation from raising surface temperatures [10]. Comparable cases from previous typhoon impacts on major airports show crosswind components exceeding 15 kt and sustained precipitation that keep daily maximums well below seasonal averages, often dropping them into the 26–28°C range [1][2].

Traders should monitor real-time updates from the Central Weather Administration and Wunderground history pages as the settlement window approaches, specifically watching for any sudden dissipation of the typhoon’s rain band [4]. The resolution depends entirely on the highest temperature recorded at RCSS for all times on this day, so any late announcement regarding flight cancellations or weather shifts due to Typhoon Bavi will be the primary catalyst for price movement [7][8]. On-chain mechanics on Polygon using USDC will reflect these shifts instantly as conditional tokens adjust to the updated meteorological data.

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.

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 Kalshi UK 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.