Highest temperature in Taipei on July 12?

Platform comparison

Market context

Taipei Songshan Airport is currently overcast at 29°C with 88% humidity and heavy precipitation expected, suppressing any immediate heat spike on 12 July 2026. This live weather reality explains why the Polymarket contract for the highest temperature today sits at a near-zero 0% probability for the YES outcome, as traders price in the cloud cover and rain forecast rather than abstract summer averages. The on-chain mechanics on Polygon, settled in USDC via conditional tokens, reflect this immediate dampening effect, with liquidity flowing away from high-temperature ranges as the day begins under grey skies.

Historically, July is Taipei’s hottest month, averaging a high of 33°C (92°F) at Songshan, yet extreme heat events typically require clear skies and minimal wind to drive temperatures above 36°C [2]. The current 0% implied probability aligns with comparable cases where thunderstorms or overcast conditions override seasonal highs, as seen in June when cloud fractions increased and solar energy remained constant despite rising degree days [1]. Traders reading this probability should note that while the monthly average supports higher ranges, the specific meteorological setup today—precipitation exceeding 95% chance and temperatures capped near 28°C—frames the market’s bearish stance on heat [5].

Key catalysts to watch include the Central Weather Administration’s hourly updates, which currently show no rain accumulation but maintain high humidity and apparent temperatures of 36°C [7]. A sudden shift to clear skies or a drop in cloud cover could act as a catalyst for rapid price movement, though the forecast for heavy precipitation and limited sun visibility suggests this is unlikely before the 12:00 UTC settlement window [5][9]. Traders should monitor Wunderground’s real-time hourly data for any deviation from the 28–29°C ceiling, as the market’s resolution depends entirely on the peak reading recorded at RCSS before noon UTC.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Taipei on July 12? 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

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.

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.