Highest temperature in Taipei on July 12?

Platform comparison

Market context

Taipei Songshan Airport is currently overcast with a temperature of 31°C and 82% humidity, as the settlement window for the July 12 high-temperature market closes in just one hour. The crowd-implied probability of 0% for a specific outcome appears to stem from a misalignment with the active Polymarket ledger, where "34°C" leads at 37% and "35°C" follows at 29%, while "37°C" dominates as the frontrunner at 96% [1]. This divergence suggests the 0% figure may reflect a technical glitch or a specific binary contract rather than the broader range-based consensus, creating a notable odds gap when compared against the live prediction-market lines.

Historical climate data frames this current pricing, with July being Taipei’s hottest month, averaging a high of 32°C (92°F) and typically ranging between 32°C and 38°C [3][4]. The intense humid nature of the season often pushes real-feel temperatures significantly higher, making the market’s heavy weighting on 37°C consistent with seasonal norms rather than an outlier [4]. Traders comparing Polymarket to Kalshi should note that while sportsbooks rarely offer granular daily temperature ranges, the prediction-market consensus here aligns closely with the upper bound of the standard July daytime bracket, suggesting the 0% line is the primary anomaly to exploit.

Immediate catalysts include the final METAR observations from the Central Weather Administration, which recorded an apparent temperature of 36°C at 09:30 local time [8]. With rain forecast for the afternoon and heavy cloud cover persisting, the actual peak may struggle to reach the 37°C frontrunner if precipitation intensifies before noon [10]. The resolution source, Weather Underground, will capture the day’s absolute maximum, meaning traders must monitor the transition from the current overcast state to any potential late-morning sun break that could spike the reading before the 12:00 UTC settlement [1][9].

Sources: 1 · 2 · 3 · 4 · 5

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

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 PolyGram. 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.

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.