Highest temperature in Taipei on July 19?

Platform comparison

Market context

On 19 July 2026, Taipei will record a daily high temperature at Songshan Airport Station, with the market currently pricing all temperature ranges at 0% probability across the board. This pricing anomaly suggests either technical settlement concerns or insufficient liquidity to establish meaningful odds. The market resolves based on historical temperature data from Wunderground, with settlement occurring at 12:00 UTC on the same day—a tight window that requires the data to be publicly available and verified by morning.

Taipei's July climate is remarkably consistent, with daily highs clustering between 32–35°C during the monsoon season. Historical records from the past decade show only occasional excursions above 36°C, typically during heat waves driven by Pacific high-pressure systems. The 0% pricing across all brackets likely reflects market participants' uncertainty about whether the contract will settle at all rather than scepticism about any particular temperature range. Traders should verify that Wunderground's historical data for Songshan Airport remains accessible and that the station continues normal operations.

The primary catalyst affecting this market is weather forecast confidence in the 72-hour window before settlement. Taiwan's Central Weather Administration publishes daily forecasts that typically show high accuracy for daily maximums within five days. Any typhoon activity—common in July—could disrupt normal temperature patterns, though such systems are usually well-flagged in advance. Traders entering positions should confirm the settlement mechanism functions properly and that conditional token redemption on Polygon executes without delays.

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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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.

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.