Highest temperature in Taipei on July 12?

Platform comparison

Market context

The market tracks the peak Celsius temperature at Taipei Songshan Airport on 12 July 2026, with settlement tied to Wunderground’s daily high for RCSS. Today’s overcast conditions and 88°F reading suggest suppressed peaks, yet July remains Taipei’s hottest month, averaging 92°F highs historically [1]. The crowd-implied 0% probability for any specific range likely reflects a misalignment between current cloud cover and seasonal norms; programmatically, traders should back-test RCSS July 2024–2025 daily highs to identify the most frequent 35–37°C bands, as historical data shows consistent clustering above 34°C even during cloudy intervals [1].

Key catalysts include the Central Weather Administration’s hourly updates, which currently report 29°C apparent temperature and 88% humidity, alongside the 95mm precipitation forecast for Sunday [6][8]. A sudden drop in cloud cover or wind speed below 10 m/s could trigger rapid heat spikes, a dependency often exploited in conditional order bots that monitor METAR RCSS real-time feeds [4]. Traders should also watch for Wunderground’s 12:00Z settlement cutoff, ensuring automated scrapers capture the final daily high before resolution, as late-afternoon heatwaves in Taipei frequently push temperatures past 36°C despite morning overcast [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 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 Polymarket Review UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.