India, Aug. 31 -- Delhi ended August with a monthly rainfall excess of 72%, and September is expected to start on an equally wet note, according to data and forecasts made by the India Meteorological Department (IMD)-it has already issued a yellow alert for Monday, predicting moderate showers across the city, with isolated pockets likely to receive heavy rainfall.

The IMD attributed the rainfall prediction to a combination of the monsoon trough and active weather systems, including a western disturbance. The IMD on Sunday also issued its monthly forecast for September, stating northwest India, including Delhi, is likely to record above "normal" rainfall in the month.

August ended with a monthly rainfall total of 400.1mm, which is 72% ov...