Mumbai records 15% less rainfall in September; uneven monsoon distribution noted
Mumbai records 15% less rainfall in September; uneven monsoon distribution noted
IN · Published Oct 1, 2026
• Mumbai experienced a notably dry September this year, with rainfall figures falling below average.
• The IMD's Santacruz observatory recorded 306.6mm of rainfall, marking the second-lowest September rainfall in a decade and 15% less than the monthly average of 359.6mm.

Impact & Risks

The uneven distribution of rainfall has implications for water resources and agricultural activities in Mumbai and surrounding areas. While suburban regions received adequate monsoon rainfall, the city centre experienced a significant deficit, which could affect local water storage and supply. The suppressed movement of weather systems and the influence of El Niño may also signal potential challenges for future monsoon patterns. Residents and planners may need to account for these variations in water management and urban planning.

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