Highest temperature in Guangzhou on July 23?

Platform comparison

Market context

Guangzhou’s heat on 23 July will be judged by the highest reading at Baiyun International Airport, and the market is leaning towards a very hot but not extreme outcome. The front-running band is **36°C**, with **37°C** the next most likely result, which suggests traders expect peak temperatures to sit just below the upper end of the forecast range rather than break sharply higher.[1]

That pricing fits Guangzhou’s midsummer profile: hot, humid conditions are common, and the city can post oppressive apparent temperatures even when the actual peak lands in the mid-30s Celsius.[2] For a market settled on the day’s maximum rather than an average, the key comparison is whether the airport station reaches the sort of value that normally separates a standard heatwave day from a genuinely exceptional one. A 0% YES price implies the crowd has already ruled out an outcome it sees as effectively unreachable under the current setup, rather than merely unlikely.[1]

The main catalysts are the live weather pattern over the Pearl River Delta and any last-minute shift in cloud cover, rain bands, or sea-breeze effects that could cap the daytime high. Traders should watch the afternoon evolution around Guangzhou’s airport specifically, because settlement depends on the station reading rather than citywide conditions, and local convection can keep the official maximum a degree or two below the broader urban temperature. Current observations already show very warm, humid air in Guangzhou, which supports the case for a high peak if daytime heating is not interrupted.[2]

Sources: 1 · 2 · 3

Methodology

Football-specific comparison page for Highest temperature in Guangzhou on July 23?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

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