Highest temperature in Shenzhen on July 21?

Platform comparison

Market context

On 21 July 2026, the highest temperature recorded at Shenzhen Bao'an International Airport Station will determine which range this market resolves to. July sits firmly within Shenzhen's summer monsoon season, when daily highs routinely exceed 32°C and frequently reach into the mid-to-high 30s. The settlement window closes at midday UTC, meaning the resolution captures the full calendar day's peak temperature across all local times.

Historical records from Shenzhen's airport station show July averages around 32–34°C for daily highs, with extremes occasionally pushing toward 37–38°C during particularly intense heat waves. The 0% implied probability across all temperature ranges suggests either a technical issue with market setup or extreme undervaluation of outcomes. Given that temperatures below 30°C would represent a substantial departure from seasonal norms—requiring unusual cloud cover, rainfall, or atmospheric disruption—and that readings above 35°C occur in roughly one-third of July days at the station, the consensus pricing appears disconnected from climatological precedent.

Traders should monitor tropical cyclone activity in the South China Sea during early-to-mid July 2026, as systems tracking toward the Pearl River Delta region could suppress temperatures through cloud cover and precipitation. Conversely, high-pressure systems anchored over southern China typically intensify heat. The China Meteorological Administration's seasonal forecasts, typically issued in June, will provide early signals on whether July 2026 tracks toward above or below-normal temperatures. No scheduled infrastructure changes at Bao'an airport are anticipated to affect measurement consistency.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win 2026, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.