Highest temperature in Shanghai on August 5?

Platform comparison

Market context

Shanghai’s August heat means the market’s **0% YES** crowd price looks like a deep favourite on a conventional summer outcome, but the underlying question is the *single highest reading* at Pudong Airport, not the average daytime high. Forecasts for 5 August cluster around the low- to mid-30s Celsius, with one source showing a daily peak of **34°C** and others pointing to **32–35°C** ranges for Shanghai in early August.[2][3][4] On that framing, the consensus sits around the mid-30s bucket, with **34°C** or nearby bands the clear benchmark and little support for outright cold outcomes.[10]

For a handicapper, the historical set-up favours heat but not a runaway number: Shanghai’s August averages are typically around **30–32°C** highs, with high humidity and frequent rainfall, which often caps extremes even when the month is hot.[3][6][17] That makes the market’s current zero-implied chance on a specific top-end outcome less a clean underdog and more a warning that traders are concentrating in the middle of the distribution. Value, if any, is usually on the *first tier above consensus* when forecasts lean hot but not exceptional, while contrarian interest sits in lower buckets if cloud cover or showers suppress the daytime maximum.[4][10]

Catalysts are straightforward: the key watchpoint is whether the Shanghai area sees stronger-than-expected cloud, rain, or thunderstorms during the daytime heating window, as these can shave the peak down by a degree or two. The final settlement depends on the highest temperature recorded at **Shanghai Pudong International Airport Station** on 5 August, and revisions only matter until the first datapoint for the following date is published, so late-evening updates and next-day data release timing are operationally important.[10] Forecast services currently show some split between dry-hot scenarios and patchy-rain possibilities, which is where the last-minute pricing risk lives.[2][4]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Shanghai on August 5? 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 2026, which mirrors the Polymarket order book at 0% fees.

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 Who Will Win 2026. 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 Who Will Win 2026 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.