Highest temperature in Beijing on July 9?

Platform comparison

Market context

The underlying real-world event is the highest temperature recorded at Beijing Capital International Airport on 9 July 2026, measured in degrees Celsius. Today, the Polymarket contract for this outcome shows a 0% probability for any temperature above 33°C, implying the crowd expects a cool day or a data anomaly, despite July being Beijing’s hottest month with an average high of 88°F [3]. Historical patterns frame this probability as highly questionable: early July in Beijing typically sees maximums between 31°C and 34°C, with daily peaks often rising 3°C to 5°C above the average [2]. In 2023, temperatures reached 40°C, and 2024 marked China’s hottest July since 1961, with peaks hitting 41.1°C [4][5]. Even in 2009, Beijing recorded 36°C on 7 July, suggesting the current 0% pricing ignores robust climatological evidence [7].

Traders should monitor the official Wunderground release for ZBAA at 12:00 UTC on 9 July, as resolution hinges entirely on this conditional token’s data feed. The key catalyst is the Beijing Meteorological Bureau’s daily forecast, which often updates hourly during heatwaves and may signal a spike before the settlement window closes. Recent reports confirm China is experiencing extreme heat across northern provinces, with temperatures averaging 23.21°C last month—eclipsing 2017’s record [6]. On-chain mechanics mean USDC payouts on Polygon will execute automatically if the temperature exceeds 33°C, but the current 0% pricing suggests the market is either misreading the data or betting on a sensor failure. Watch for any sudden announcements from the bureau regarding heat advisories, as these dependencies directly influence the conditional token’s outcome.

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 Polymarket Scam?, 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 Polymarket Scam?. 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.

Do I need to KYC for this market?

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

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.