Highest temperature in Shenzhen on June 4?

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Market context

Shenzhen's climate on 4 June 2026 will determine whether the highest recorded temperature at Bao'an International Airport exceeds specific thresholds. Early June sits within the city's pre-monsoon transition period, when daily highs typically range between 28–32°C, though heat waves can push readings several degrees higher. The settlement mechanism relies on Wunderground's historical weather database, which archives hourly observations from the airport station—the primary meteorological reference point for the region. Traders automating this market should note that Wunderground updates its records with a lag of 24–48 hours, meaning final confirmation arrives after the settlement window closes, requiring conditional order logic that accounts for delayed data availability.

Historical June temperatures in Shenzhen show considerable year-on-year variance. The 30-year average high for early June sits around 30°C, but individual days have recorded peaks of 35–36°C during anomalous heat events. The 0% crowd probability suggests either systematic underpricing of heat risk or confidence in typical seasonal patterns. Traders evaluating this programmatically should cross-reference China Meteorological Administration forecasts and regional atmospheric pressure systems; subtropical high-pressure ridges moving northward in late May typically correlate with elevated June temperatures. Recent patterns (2023–2025) show increasing frequency of early-season heat spikes, though this remains a marginal statistical shift rather than a structural climate change signal affecting June specifically.

Methodology

This page reviews Highest temperature in Shenzhen on June 4? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket App UK — the application we operate, where you trade directly against 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?

On Polymarket App 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 App UK?

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

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.