Highest temperature in Beijing on July 24?

Platform comparison

Market context

Polymarket is pricing this Beijing airport temperature contract at **0% YES** on the USDC rails today, which means the market is effectively treating a qualifying high for 24 July as very unlikely. Because the market resolves off the **highest temperature recorded at Beijing Capital International Airport Station** on the day, the relevant question is not whether Beijing feels hot in general, but whether the airport observation reaches the contract’s target range before the settlement window closes on Polygon’s conditional-token framework.

The backdrop is still a peak-summer Beijing setup. July is typically the city’s hottest month, with average daytime highs around **31°C** and occasional spikes to **40°C** in recent years; humidity and rain can also suppress daytime maxima, especially when showers move through in the afternoon.[2] That makes the current 0% price look like a strong view that today’s reading will land below the market’s payoff band, rather than a judgement on seasonality alone. On Polymarket, that matters because traders are pricing the exact station-based outcome, not a citywide average or a general weather impression.

For a trader, the main catalysts are the local forecast for the airport area, whether cloud cover or rain limits afternoon heating, and any change in synoptic conditions over northern China as the day develops. July is also Beijing’s wettest month, with heavy rain episodes more common in the second half of the month, so a shower line or storm timing shift can move the daily maximum materially.[2] Short-term forecast services currently point to warm but not extreme July conditions, with highs in the low-30s Celsius rather than the upper-30s or 40°C zone that would be needed for a more dramatic upside repricing.[1][3]

Sources: 1 · 2 · 3 · 4

Methodology

This page reviews Highest temperature in Beijing on July 24? 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 PolyGram, which mirrors the Polymarket order book at 0% fees.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram 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.