IMD predicts thunderstorms, lightning in Mumbai after brief rainfall lull

27 June,2026 07:59 AM IST |  Mumbai  |  Eshanpriya MS

After a sharp decline in rainfall over the past two days, the IMD has forecast thunderstorms, lightning and gusty winds in Mumbai on Saturday and Sunday

A woman and girl brave the afternoon heat near the Gateway of India on Friday. Pic/Ashish Raje


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[popcorn number="5.4 MM" desc=" Rainfall recorded in Colaba betweeen Thurs and Fri " class="Default"]

[popcorn number="0 MM" desc=" Rainfall recorded in Santacruz from Thursday to Friday " class="Default"]

After not receiving a significant amount of rain following two days of heavy rain earlier this week, the India Meteorological Department (IMD) has predicted a thunderstorm accompanied by lightning and gusty winds for Saturday and Sunday.

Mumbai reported a significant drop in rainfall in the 48 hours between Wednesday and Friday, after heavy to very heavy rainfall lashed across the city between Tuesday and Wednesday morning.

Chhatrapati Shivaji Maharaj Terminus is silhouetted by the blazing sun on Friday morning. Pic/Ashish Raje

IMD data revealed that between 8 am on Thursday and Friday, Colaba and Santacruz received only 5.4 mm and 0 mm of rainfall, respectively.

Similarly, in the 24 hours between 8 am on Wednesday and Thursday, 26 mm of rainfall was recorded at Colaba, and 13.6 mm was recorded at Santacruz, whose weather station's readings are considered those of Mumbai. Effectively, June's cumulative rainfall has jumped by one percentage point since Tuesday's heavy downpour, according to official information.

By this time last year, Colaba and Santacruz had already received 542 mm and 478.1 mm of rainfall. However, so far this year, the former spot has received 354.5 mm, and the latter 284.2 mm, indicating a deficit for now. Colaba observatory has recorded a departure of -22.6 per cent of average rainfall, and Santacruz -34.7 per cent. IMD figures indicate that until Friday, the Colaba weather station has recorded 16.92 per cent of average seasonal rainfall, and Santacruz 12.26 per cent.

0 mm
Rainfall recorded in Santacruz from Thursday to Friday

Weak season

In May, IMD's long-range forecast indicated a weak monsoon season for India, expecting below-normal rainfall, at approximately 90 per cent of the average seasonal rainfall figures of the past decade. A senior IMD official said, "Last year, Mumbai had reported the earliest arrival of the southwest monsoon."

May numbers

Last year, Mumbai recorded its wettest May in 107 years, with the early arrival of the monsoon by May 26, 2025. Last May, the Colaba and Santacruz observatories recorded 509 mm and 395 mm of rainfall, respectively.

IMD forecast for Mumbai

Saturday: Yellow alert Thunderstorm accompanied by lightning and gusty winds. Light to moderate rainfall in isolated parts

Sunday: Yellow alert Thunderstorm accompanied by lightning and gusty winds. Light to moderate rainfall in isolated parts

Monday: Green alert Light to moderate rainfall

It's raining numbers

. Between 8 am on Tuesday and 8 am on Wednesday
Colaba: 247.8 mm
Overall % of June rainfall received: 15.42%
Santacruz:
224.8 mm

Overall % of June rainfall received: 11.68%
. Between 8 am on Wednesday and 8 am on Thursday
Colaba: 26 mm
Overall % of June rainfall received: 16.66%
Santacruz: 13.4 mm

Overall % of June rainfall received: 12.26%
. Between 8 am on Thursday and 8 am on Friday
Colaba: 5.4 mm
Overall % of June rainfall received: 16.92%
Santacruz: 0 mm

Overall % of June rainfall received: 12.26%

Seasonal rainfall so far:
Colaba: 354.5 mm
Departure: - 22.6%
Santacruz: 284.2mm
Departure: - 34. 7%

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