About this Market

Recent meteorological forecasts for Shanghai on September 4, 2026, converge on daytime highs of 29–31°C under partly to mostly cloudy skies with northeasterly winds near 10–15 km/h and moderate humidity. These conditions, typical of early September in the subtropical East Asian monsoon regime following peak summer heating, limit surface warming while scattered showers or lingering moisture suppress extreme maxima. Model consensus across sources shows limited day-to-day variability, positioning 30–31°C as the most probable range and explaining the market’s heavy weighting on those outcomes. Updated runs from agencies like the China Meteorological Administration or global ensembles could shift probabilities if steering patterns or cloud cover change materially before resolution.