Highest temperature in Taipei on August 2?

Platform comparison

Market context

Taipei Songshan Airport’s highest temperature on 2 August will be set by the day’s peak reading at the station, with settlement using the Wunderground history page for that airport rather than a citywide average. The current prediction-market book is concentrated in the mid-to-high 30s Celsius: Polymarket shows **37°C** as the front-runner at **37%**, **36°C** at **33%**, and **38°C** at **18%**, while the contract’s **0% YES** crowd-implied probability on this venue suggests the market is either still thinly priced or being interpreted differently across platforms.[2]

Historical and forecast context both argue that a very hot outcome is normal, but not extreme, for early August in Taipei. AccuWeather’s August forecast for Taipei City points to daily highs of roughly **86°F to 92°F** (about **30°C to 33°C**), while other climate guides place August highs around **32°C to 34°C**; that leaves room for a station-level spike into the mid-30s on a clear, humid day, but makes anything far above 38°C less typical.[1][4][11] In other words, the cross-platform picture is one of broad agreement on heat, but a sharper split on whether the maximum lands at 36–37°C or slips a degree lower.

The main catalysts are the day’s actual cloud cover, sea-breeze timing, and any afternoon shower activity, because even a small change in mixing or shading can shift the recorded maximum by 1°C. Traders will also watch the latest Taipei-specific forecast updates from the Central Weather Administration and any revisions from major forecast providers as the morning progresses, since the market resolves on the *highest* station reading, not the forecast high.[2][1] The practical comparison here is that sportsbook-style weather lines, where available, usually cluster tightly around the forecast range; by contrast, prediction-market pricing is already split between adjacent temperature buckets, reflecting uncertainty about the exact peak rather than the general heat level.[2]

Sources: 1 · 2 · 3 · 4 · 5

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

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 Best Prediction Markets UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.

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.