Pronóstico: Highest temperature in Shenzhen on July 27?

Platform comparison

Market context

Polymarket is pricing this Shenzhen airport temperature contract at **0% YES**, so the market is currently saying the chance of the day’s top reading landing in the specified Celsius range is negligible in conditional-token terms on Polygon, with settlement tied to USDC and the Wunderground airport station record. The underlying event is straightforward: the highest temperature recorded at Shenzhen Bao’an International Airport on 27 July 2026, with the resolution source defined as Wunderground’s daily history page for that station.

For context, Shenzhen’s July climate is normally hot, humid, and rain-affected rather than extreme on the high end. Seasonal guides put average daytime highs around **32°C** and nighttime lows around **26–27°C**, while July is also described as one of the city’s wetter months, with frequent rain and substantial monthly rainfall. Current near-term forecasts are in the high 80s Fahrenheit, with cloud cover and a meaningful rain chance, which can restrain afternoon maxima even when the air mass is warm.

A trader watching the tape should focus on the station’s actual hourly observations rather than city-wide forecasts, because the market resolves to the single highest reading captured at the airport site. The main catalysts are late-morning and early-afternoon heating, cloud cover, rain bands, and any convective burst that could either cap the top reading or briefly spike it before showers arrive. With the market still open around the settlement window, the practical watchpoint is whether Shenzhen Bao’an can print a late-afternoon high above the seasonal norm, or whether precipitation and maritime humidity keep the day anchored near the low 30s Celsius.

Sources: 1 · 2 · 3 · 4

Methodology

This page reviews Pronóstico: Highest temperature in Shenzhen on July 27? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Qué Es, which mirrors the Polymarket order book at 0% fees.

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 Polymarket Qué Es. 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 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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.