Highest temperature in Taipei on July 20?

Platform comparison

Market context

Taipei Songshan Airport Station will record its peak daily heat on 20 July 2026, a date historically locked into the city’s most intense summer window. July in Taipei routinely delivers daytime highs between 32°C and 38°C, with 38°C representing the typical ceiling under clear skies and strong solar radiation [1]. The crowd-implied probability of 0% for the YES outcome suggests the market currently expects the temperature to fall outside the specific range offered, likely betting on a lower bracket or a significant cooling event. Yet, historical comparables show that temperatures hitting 35°C or above are common in mid-July, making the 0% line appear starkly contrarian against the baseline climate data.

Traders should monitor the Taiwan Central Weather Bureau’s daily forecasts for typhoon development or heavy rain systems, which are the primary catalysts for sudden temperature drops in late July. A typhoon approaching the east coast could suppress highs to 30°C or below, validating the current 0% pricing, whereas a persistent subtropical ridge would push temperatures toward the 37–38°C range, exposing the underdog value in the YES position. Recent weather patterns in early July 2026 saw Taipei hit 35°C on 9 July, confirming that the atmosphere remains capable of sustaining extreme heat this season [2]. The key dependency is the absence of convective rainfall; if the sky stays clear through the settlement window, the consensus 0% probability may represent a significant mispricing of the historical likelihood of extreme heat.

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 Who Will Win, which mirrors the Polymarket order book directly.

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

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.

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.