Highest temperature in Taipei on July 22?

Platform comparison

Market context

Taipei Songshan Airport’s highest temperature on 22 July 2026 is the underlying event, and the market is already pricing a very warm day: the Polymarket contract has **36°C** as the clear frontrunner at **93%**, with **37°C or higher** still only **5%**.[1] That implies a much tighter expected range than the headline probability suggests, because the market is effectively saying a mid-30s peak is overwhelmingly more likely than an extreme late-day surge.

The historical read-through matters because Taipei in July is typically a monsoon-season heat-and-humidity setup, where cloud cover and showers can cap the top end even when apparent temperatures feel oppressive. In that context, the current 0% YES framing from your prompt looks inconsistent with the exchange price quoted by Polymarket, so the meaningful comparison is less about whether it will be hot and more about whether the day tops out at 36°C or pushes into 37°C-plus territory.[1] The most useful cross-platform watchpoint is any divergence between derivative-style pricing and weather-forecast consensus, because a one-degree shift at the airport can flip the contract’s bucket.

For traders, the key catalysts are the local morning-to-afternoon forecast updates, cloud-break timing, and any convective rain risk over northern Taiwan, since those determine whether insolation is strong enough for a late peak. Real-time conditions at Songshan already show cloud and high humidity, with AccuWeather reporting 88°F and a RealFeel of 103°F, which supports the warm baseline but does not by itself lock in the upper bucket.[2] That leaves the main sensitivity in whether afternoon skies clear enough to add another degree or two before the settlement window closes.[2]

Sources: 1 · 2

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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'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 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.