Highest temperature in Shenzhen on May 30?

Platform comparison

Active sub-markets

Market context

Shenzhen's late-May weather sits at the threshold between spring and summer, with the city transitioning into its pre-monsoon season. Historical data from Bao'an International Airport shows May 30th typically records highs between 28–32°C, though extremes have reached 34°C in anomalous years. The current 0% crowd probability suggests either insufficient liquidity depth to attract initial positions or genuine uncertainty about whether the market's range brackets will capture the actual reading. Wunderground's historical archive for this station provides granular daily records, making settlement straightforward once the date passes.

Traders monitoring this market should track the South China Sea's thermal patterns through late May, particularly any early monsoon onset or high-pressure systems stalling over the Pearl River Delta. The China Meteorological Administration publishes 10-day forecasts that typically firm up by mid-May; these often precede Wunderground's recorded highs by several days. Deposit friction remains material for smaller traders—SEPA transfers and Klarna's payment rails carry settlement delays that can affect position entry timing relative to forecast updates. Book depth will likely remain thin until late May approaches, when weather certainty increases and traders can confidently size positions without tying up capital through extended holding periods.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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?

On Polymarket Deposit UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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 it cost to trade on Polymarket Deposit UK?

Zero. Polymarket Deposit UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Deposit UK triggers a quick verification flow that finishes in minutes.