Highest temperature in Chengdu on August 9?

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Market context

Chengdu’s daytime heat on 9 August is usually enough to keep the market focused on the upper 20s to low 30s Celsius, but the city can still push into the mid-30s when skies brighten and rainfall is limited. Long-run August climatology points to average highs around 30–31°C, while recent August readings have repeatedly reached 32–34°C and occasionally higher, including 34.3°C on 7 August in the historical series cited by TravelChinaGuide and 2026 daily history listings showing a 32°C high for 8 August.[1][4][16]

That makes the current 0% yes price for a very specific temperature band hard to square with Chengdu’s normal summer pattern, especially because Weather Underground’s Daily Observations can differ from the headline “Day High & Low” summary that traders may be glancing at.[2] For context, comparable August traces across the city show a wide but still heat-leaning distribution, with several recent years posting 32–34°C maxima and the all-time August record above 39°C, so outcomes in the low-to-mid 30s are materially more plausible than cooler bands if the day turns dry and sunny.[4][5][16]

Traders should watch the intra-day observation feed at Chengdu Shuangliu International Airport rather than the summary panel, because the settlement source is the Daily Observations table and the final outcome can hinge on the highest hourly reading recorded before the window closes.[2] The practical catalysts are straightforward: whether afternoon convection develops, whether cloud cover suppresses the peak, and whether the airport station logs a late-day spike after a warm morning start; recent forecast-style listings for 9 August already point to cloudy conditions and a high around 33°C, which supports a warmer range but still leaves room for a one-degree overshoot if sunshine breaks through.[7][20]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Chengdu on August 9?. 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 or Manifold.

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