The rainfall until Monday has already exceeded the monthly average for June, even though the monsoon arrived 10 days late.
Since June 1, the weather station at Santacruz, representative of the suburbs, recorded 547.3mm rainfall until 5.30pm on Monday as against the month’s average of 523.1mm. The Colaba weather station, which is representative of south Mumbai, recorded 428.5mm. The monsoon had set in the city on June 20. The usual date of onset is June 10.
Last June, too, Mumbai received more rain than the month’s average, with 1106.7mm in the suburbs and 866.3mm in south Mumbai, which was the all-time high for the month.
Weathermen said the city can expect ‘moderate’ to ‘heavy’ rain over the next two days, starting Monday. “Of the two synoptic situations responsible for rain over the Konkan coast, including Mumbai, the distinct offshore trough between south Gujarat and Kerala still persists. However, the upper air cyclonic circulation over south Gujarat has died down. Hence, the city can expect intermittent rain over the next 48 hours,” said VK Rajeev, director, western region, India Meteorological Department (IMD).
Between 8.30am Sunday and 8.30am Monday, the Colaba weather station recorded 33.2mm of rain and the Santacruz weather station recorded 33.6mm .
Under the IMD’s new classification, 15.6mm to 64.4mm of rain is ‘moderate’, 64.5mm to 115.5mm is ‘heavy’, 115.6mm to 204.4mm is ‘very heavy’ and more than 204.5mm is ‘extreme’.
The new week began with intermittent rain and sporadic spells of sunshine during the day on Monday. Between 8.30am to 5.30pm, Santacruz recorded 48.6mm of rain, but Colaba recorded only 6.4mm.
The maximum temperatures, both at the suburbs and south Mumbai continued to be below normal levels on Monday. While Colaba recorded 29.5 degrees Celsius, 29.6 degrees Celsius was recorded at Santacruz, both 1.5 degree Celsius below normal. Minimum temperatures, too, were a degree Celsius below normal at both weather stations.
Moisture levels remained high with Colaba and Santacruz recording 95% and 92% humidity respectively.