Highest temperature in Taipei on July 20?

Platform comparison

Market context

Taipei’s highest temperature on 20 July 2026 is the real-world event this contract tracks, with the market currently pricing a 0% chance that the outcome will fall outside the 35°C range. On Polymarket, traders use USDC on Polygon to buy conditional tokens representing each temperature bracket; the frontrunner, 35°C, sits at 100% implied probability, while all other ranges, including 28°C or below, are priced at 0% [1]. This extreme skew reflects the on-chain mechanics locking in consensus around a single outcome before settlement on 2026-07-20T12:00:00Z.

Historical July data for Taipei shows daytime highs consistently between 32°C and 38°C, with a monthly average high of 34°C, making 35°C a statistically probable peak for mid-summer [3][4]. The city’s intense humidity amplifies heat perception, and evening temperatures rarely drop below 27°C, reinforcing why the market dismisses cooler outcomes entirely [3]. Comparable years show July as Taipei’s hottest month, with frequent days exceeding 35°C, which aligns with the current 100% pricing for that bracket [4].

Traders should monitor daily Wunderground updates for the Taipei Songshan Airport Station, the designated resolution source, as any deviation from the 35°C range would instantly shift token prices [1]. While no specific weather announcements are scheduled for 20 July, the dependency on real-time station data means volatility could spike if cloud cover or rainfall patterns change unexpectedly, though current conditions show cloudy skies with 84% humidity [2]. The market’s binary certainty hinges entirely on whether the recorded peak matches the 35°C threshold by settlement time.

Sources: 1 · 2 · 3 · 4

Methodology

This page reviews Highest temperature in Taipei on July 20? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi UK, which mirrors the Polymarket order book at 0% fees.

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

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 Kalshi UK. 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 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.

Do I need to KYC for this market?

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