Highest temperature in Taipei on July 22?

Platform comparison

Market context

The real-world event is the highest temperature recorded at Taipei Songshan Airport on 22 July 2026, with settlement tied to the Wunderground daily history page for RCSS. The market is pricing **0% YES** on the broader event framing, but the temperature-range book is already anchored to a very different consensus: the front-runner is **36°C**, with **37°C or higher** a distant outsider.[1]

For a handicapper, that makes **36°C the favourite** and the upper-tail ranges the underdogs. The recent distribution on the market suggests traders see a fairly tight July cluster, with 35°C and 36°C carrying most of the weight and only a small residual tail above 37°C.[1] In practical terms, the value question is whether the crowd is underestimating how often Taipei’s urban heat and humid summer conditions push the airport reading into the mid-30s rather than above it; the current shape says the consensus is already leaning to that mid-30s band, so contrarian value is more likely in the lower or higher fringe ranges than at the centre.[1]

The main catalysts are meteorological rather than event-driven: morning cloud cover, sea-breeze strength, afternoon convection, and any monsoon or tropical disturbance affecting northern Taiwan. A typhoon is not the baseline case in the available source material, which said there was no indication of one forming before the end of July in a recent discussion of Taipei heat extremes.[2] That leaves the forecast path relatively dependent on day-of heating and humidity rather than a single binary weather shock, so traders should watch short-range forecasts for Taipei Songshan Airport specifically as the settlement window approaches.[1][2]

Sources: 1 · 2

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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.