Highest temperature in Taipei on July 1?

Platform comparison

Market context

The underlying event is the highest temperature recorded at Taipei Songshan Airport on 1 July 2026, measured in degrees Celsius. Today’s weather forecast for the station predicts a high of 95°F (35°C) with a 40% chance of precipitation and possible local thunderstorms[1]. Historical data confirms July is the hottest month at this location, with an average high of 92°F (33°C) and lows around 80°F (27°C)[3].

Current crowd-implied probability of 0% for a “YES” outcome suggests the market expects the temperature to fall outside the defined range, though this diverges sharply from climatic reality. In 2023, Taipei recorded 39.7°C (103.5°F), its highest temperature in 124 years, driven by intense heat influence[8]. More recently, May 2026 saw temperatures soar to 38.3°C (100.9°F), marking the hottest May day since records began[9]. These extremes indicate that July highs in Taipei frequently exceed 35°C, making a 0% implied probability highly questionable.

Traders should monitor real-time updates from Wunderground, the official resolution source, and watch for announcements from the Central Weather Administration regarding heat advisories or monsoon shifts[4]. Any sudden spike in temperature readings or reduction in cloud cover could invalidate the current market stance. Given the historical precedent of extreme heat in Taipei during summer, the 0% probability appears inconsistent with observed patterns, suggesting a potential mispricing across platforms.

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 Kalshi vs Polymarket, 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

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 vs Polymarket. 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.

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 vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.