Highest temperature in Shenzhen on August 1?

Platform comparison

Market context

Polymarket is currently pricing the **highest temperature in Shenzhen** on this contract at **0% YES**, which effectively means the market sees no chance of a top-end reading in the relevant Celsius band on the Shenzhen Bao’an International Airport Station source. The settlement is tied to the day’s maximum from Wunderground’s history page for that station, so traders are really holding USDC on Polygon via conditional tokens against a single published weather print rather than a broad city-average outcome.[18]

August in Shenzhen is normally hot enough to keep the upper bands in play, but not so extreme that very high readings are routine. Published climate summaries put Shenzhen’s August average high around **32°C to 32.2°C**, with daily highs often near **89°F to 90°F** and occasional spikes into the mid-30s Celsius; one climate reference notes the month is typically “very hot, muggy”, with warm-day maxima usually around **36°C** and a historical August peak of **38°C**.[2][8][10][20] For a market settled on the *highest* recorded temperature, that history matters more than the mean: if the day turns out merely typical, the chance of a higher bracket can collapse quickly.

For a trader, the live catalysts are the same ones that move the airport reading itself: incoming monsoon rain bands, thunderstorm coverage, cloud build-up and any late-morning heating before the settlement window closes at **12:00 UTC**. Shenzhen in August also tends to be rain-prone, with several sources showing frequent precipitation and humid conditions that can cap the afternoon maximum.[4][10][15] With the market resolving from a single station observation, the key dependency is not citywide sentiment but whether conditions at Bao’an Airport allow temperatures to climb before midday and whether Wunderground posts a final daily high that lands inside the chosen range.[18]

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 Kalshi UK, 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

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 Kalshi UK. 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 Kalshi UK 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.