Highest temperature in Shenzhen on June 4?

Platform comparison

Active sub-markets

Market context

Shenzhen will experience peak summer heat on 4 June 2026, with the highest daily temperature recorded at Bao'an International Airport determining the settlement outcome. The market divides the range into discrete bands, each representing a possible high for that date. The 0% crowd probability across all temperature ranges suggests either insufficient liquidity or a technical issue with market initialisation, a pattern occasionally seen when weather markets first open on smaller platforms before traders establish baseline positions.

Historical June temperatures in Shenzhen cluster between 28–35°C, with occasional peaks above 36°C during early summer heat waves. The city's subtropical climate produces consistent warming through spring into June, though the exact daily high depends on cloud cover, rainfall, and monsoon activity. Comparable markets on Polymarket, Kalshi, and Betfair show divergent approaches: Polymarket typically uses binary YES/NO structures with implied probabilities displayed as decimals, whilst Kalshi offers range-based contracts with clearer settlement bands. Betfair's exchange model allows decimal odds matching that can reflect sharper probability shifts than order-book platforms, though all three require KYC verification with varying geographic restrictions affecting liquidity depth.

Traders should monitor China Meteorological Administration forecasts released in late May and early June, which provide 10-day outlooks for Guangdong Province. Tropical cyclone activity tracking from June onwards could suppress temperatures, whilst high-pressure systems typically elevate them. The settlement window closes at 12:00 UTC on 4 June, meaning final price movements will compress into a narrow window once morning weather data becomes available.

Methodology

This page compares Highest temperature in Shenzhen on June 4? 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 Polymarket Alternative, 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 Polymarket Alternative, 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 does it cost to trade on Polymarket Alternative?

Zero. Polymarket Alternative 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, Polymarket Alternative triggers a quick verification flow that finishes in minutes.