Highest temperature in Shanghai on August 2?

Platform comparison

Market context

Shanghai’s daytime heat is the real-world event here, and the market is asking for the **highest reading at Pudong Airport on 2 August 2026**. With the crowd at **0% YES**, the consensus is firmly on the under, which makes the obvious handicapper’s note that the favourite is “not especially hot” on record terms, while any upside surprise sits with the contrarian long. August in Shanghai is usually very warm, with typical highs around the low 30s Celsius and a meaningful ceiling in the mid-to-upper 30s, but the airport station’s settled daily maximum still has to beat whatever is observed during the full reporting window.[1][4][12]

For framing, the historical read says this should not be priced like a dead cert for an extreme print: Shanghai’s August averages cluster around 32–35°C, while recent August extremes have been much higher in heatwave years, including a 39.5°C hottest day in August 2025 and a 41°C all-time city high in 2013.[2][3][5] That leaves the favourite as a fairly ordinary late-summer high, with value more likely in the contrarian view that airport conditions can undershoot city-centre extremes if cloud, rain, or a sea-breeze effect cap the maximum. If consensus is anchored on “another sweltering Shanghai day”, the value spot is the possibility of a merely warm, not exceptional, airport reading.[1][2][12]

The main catalyst is the day’s actual weather evolution: whether a heat ridge holds over eastern China, or whether showers, typhoon remnants, or early cloud cover suppress the afternoon peak. Forecast services already point to August highs in the low 30s Celsius for Shanghai, but that is an area-wide guide rather than a station-specific settlement cue, and the market resolves on the Pudong Airport history page’s maximum for the day.[9][12][18] Traders should watch for short-range updates on rain bands and typhoon tracks, because a late change in cloud or precipitation timing can shift the intraday high even if the morning starts hot.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Shanghai on August 2? 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 Who Will Win, 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 Who Will Win. 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.

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.