Highest temperature in Shenzhen on August 9?

Platform comparison

Market context

Shenzhen has already spent the morning in the low-to-mid 30s Celsius, and the latest local guidance still clusters the day’s peak around **36°C to 37°C**, with short-lived spikes to **38°C** only a minor tail risk. Weather Underground’s daily observations are the settlement source here, so the relevant question is not the headline forecast but whether the airport station logs a single reading above the 36°C band before the day rolls over in the record used by the market.[4][1]

That leaves the current **0% YES** crowd view looking unusually cautious relative to the broader forecast stack. Recent market pricing on Polymarket has centred on **36°C** and **37°C** as the main outcomes, while other forecast outlets have shown similar highs in the mid-to-upper 30s and a hot, humid profile typical of August in Shenzhen.[1][8][11][17] August climatology also supports reading this as a heat-driven market rather than a low-volatility one: the city’s average high sits around the low 30s, but late-summer heat frequently pushes maxima several degrees above normal when skies stay hazy or cloudy.[10][18]

The main catalysts are straightforward: the afternoon temperature path, any convective showers or thunderstorm cover, and whether marine or monsoon flow limits heating before the daily maximum is fixed at the airport station. Traders should watch the latest Weather Underground observation updates against nearby forecast products from AccuWeather, timeanddate, and the Hong Kong Observatory, because they have broadly converged on a hot day but still differ on whether Shenzhen stops at **35–36°C** or briefly reaches **37°C+**.[6][11][17][8]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

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