Highest temperature in Beijing on July 16?

Platform comparison

Market context

Beijing faces a mid-July heat check on 16 July 2026, with the Beijing Capital International Airport Station set to record its peak temperature for the day. The crowd currently assigns a 0% probability to any outcome exceeding the market’s implied favourite, yet ensemble forecasts point to seasonal norms around 32–34°C, making the 33°C range the frontrunner at 39% and 34°C the next closest at 27%[1]. This 0% YES implies a near-total consensus that extreme outliers are unlikely, but short-range models show modest afternoon heating hinging on boundary-layer mixing and insolation, suggesting the underdog could hold value if cloud cover or wind shifts unexpectedly[1].

Historically, Beijing’s mid-July peaks cluster tightly between 32°C and 35°C, with 33°C appearing most frequently in comparable cases over the past decade. The current 0% implied probability for higher ranges ignores the sensitivity of afternoon heating to subtle atmospheric variables, creating a potential contrarian angle if forecasts tighten toward the upper end of the seasonal band[1]. Traders should monitor the 12-hour forecast updates from Wunderground and local meteorological bulletins for changes in boundary-layer dynamics, as these will directly influence insolation and peak temperature[1]. Any announcement of reduced cloud cover or weaker wind shear could push the market toward the 34°C underdog, where value may sit relative to the crowded 33°C favourite[1].

Sources: 1

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 Who Will Win, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

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.

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 Who Will Win 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.