Highest temperature in Shenzhen on June 7?

Platform comparison

Active sub-markets

Market context

Shenzhen will experience early-summer weather on 7 June 2026, with the highest daily temperature at Bao'an International Airport Station determining the resolution. June marks the onset of the pre-monsoon season in southern China, when daytime highs typically range between 28–34°C, though heat waves occasionally push readings above 35°C. The settlement window closes at midday UTC, meaning traders must account for the full calendar day's peak before final resolution.

Historical June data from Bao'an shows considerable year-to-year variation. In 2023, the highest temperature on 7 June reached 31.2°C under partly cloudy conditions; in 2022, it climbed to 33.8°C. The 0% implied probability currently displayed reflects either sparse liquidity or a technical display lag across prediction platforms—Polymarket's decimal-odds interface and Kalshi's percentage-based format sometimes diverge in real-time updates, particularly for weather markets with thin order books. Betfair and Smarkets typically show tighter spreads on established weather contracts, though their KYC requirements and regional restrictions limit access for some traders.

Traders should monitor China Meteorological Administration forecasts released in the week preceding 7 June, which will clarify whether subtropical high-pressure systems or tropical moisture patterns dominate. Typhoon activity in the western Pacific during early June can suppress temperatures significantly, whilst clear skies and light winds favour heat accumulation. Wunderground's historical data feed, the official settlement source, updates daily and remains accessible without subscription, allowing traders to cross-reference competing platforms' odds against recent seasonal trends.

Methodology

This page compares Highest temperature in Shenzhen on June 7? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Where can I trade this market with the lowest fees?

On Kalshi Alternative 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?

Kalshi Alternative 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'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 Kalshi Alternative UK?

Zero. Kalshi Alternative 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.