Highest temperature in Shenzhen on June 8?

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Market context

On 8 June 2026, Shenzhen will experience its early summer climate, and this market asks traders to forecast the single highest temperature recorded that day at Bao'an International Airport Station. A YES share pays out if the actual peak temperature falls within a specific range (the exact bands appear in the full market details); a NO share pays if it falls outside. Traders are essentially betting on whether Shenzhen's heat will reach, or stay below, particular thresholds on that date.

Shenzhen's June temperatures are historically consistent. The city sits in a subtropical zone where early June typically sees highs between 28–32°C, with occasional spikes toward 33–34°C during heat waves. Weather records from Wunderground for previous Junes show that extreme outliers—temperatures above 35°C or below 27°C on this date—are rare. The current 0% crowd probability suggests traders are heavily sceptical of one or more of the offered ranges, possibly because they fall outside the normal seasonal band or because the settlement window (ending at noon UTC) may miss the actual daily peak if it occurs later in the afternoon.

The key variable is the East Asian summer monsoon's timing and intensity. By early June, the monsoon typically begins transitioning northward, which can either suppress temperatures through cloud cover and rainfall or intensify heat through humidity and stagnant air masses. China's meteorological forecasts, published by the China Meteorological Administration, will be available weeks before the date and should guide expectations. Traders should monitor whether any unusual pressure systems or tropical systems develop in the South China Sea during May–early June 2026, as these can materially shift Shenzhen's weather patterns.

Methodology

We track Highest temperature in Shenzhen on June 8? on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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?

On Prediction Market 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.

Is this market available outside the US?

Prediction Market UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

What does it cost to trade on Prediction Market UK?

Zero. Prediction Market 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 fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

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