Mumbai Weather Alert: IMD Forecasts Heavy Rain & Health Risks

The monsoon season in Mumbai has brought with it more than just rain. With rapidly changing weather conditions, fluctuating humidity levels, and irregular rainfall, residents of Mumbai and surrounding Konkan regions are facing not only meteorological instability but also a rising public health crisis. The Indian Meteorological Department (IMD) has issued a series of weather alerts across Maharashtra, painting a vivid picture of the city's dynamic climate and its implications.

IMD Issues Weather Alerts: Red, Orange, and Yellow Warnings Across Maharashtra

The IMD has rolled out a series of color-coded alerts spanning June 12 to June 17:

• Red Alert: Issued for the Konkan coastal region on Thursday, June 12, indicating the possibility of heavy to very heavy rainfall. This covers districts like Raigad and Ratnagiri, where localized flooding and thunderstorms are expected.

• Orange Alert: Active across Vidarbha and Marathwada, with warnings of heavy to moderate rainfall.

• Yellow Alert: Issued for Mumbai, Thane, and Palghar from June 12–15, forecasting thunderstorms accompanied by lightning, gusty winds (40–50 km/h), and moderate to heavy rainfall in isolated areas.

The alerts aim to prepare citizens for unpredictable weather, urging caution and preventive steps, especially in coastal and low-lying areas.

“Fairly widespread to widespread rainfall activity with heavy to very heavy rainfall is very likely over Konkan and Madhya Maharashtra,” said the IMD in its bulletin.

12 जून 2025 के लिए मौसम की चेतावनी#imd #rain #weatherupdate #Rainfall #heatwave #mausam #monsoon2025 #weatherforecast #Rajasthan #punjab #harayana #UttarPradesh #jammu #himachalpradesh #MadhyaPradesh@moesgoi @ndmaindia @DDNational @airnewsalerts pic.twitter.com/5z0xHmJoNY— India Meteorological Department (@Indiametdept) June 11, 2025

Regional Weather Overview for Maharashtra

Rainfall Resumes After Dry Spell

After an initial burst of heavy rain in late May, Mumbai experienced a puzzling dry spell in early June despite the official declaration of monsoon onset. The IMD’s forecast for Wednesday, June 12, predicted light to moderate rain and thundershowers, but many areas, including central Mumbai, remained dry.

This dry stretch had multiple consequences:

Humidity fluctuation

Early May recorded humidity levels of 90%, which dipped to 60% after heavy rains on May 26, only to climb again to 75–80% amid the recent rain pause.

City Temperature Update (June 11–12)

• Colaba Observatory:

  • Max: 33°C | Min: 27.6°C

• Santacruz Observatory:

  • Max: 33.7°C | Min: 28.8°C

48-Hour Weather Outlook for Mumbai

• Continued overcast skies

• Thunderstorms with light to moderate showers

• Gusty winds

• Temperature expected: Max 32°C, Min 27°C with 24 km/h winds and 15% chance of precipitation

The IMD attributes this irregular pattern to:

“An upper air cyclonic circulation over north Odisha, tilting southwards, is likely to move westward across southern Maharashtra. Under its influence, rainfall activity is expected to rise.”

This meteorological shift explains the increased rainfall expected post-June 12 and the heightened alerts across the state.

The IMD has strongly advised fishermen to avoid venturing into the sea from June 12 to 14 due to the risk of gusty winds and turbulent sea conditions.

दैनिक मौसम परिचर्चा (11.06.2025)

YouTube : https://t.co/Ku00D5AUpp#imd #rain #weatherupdate #Rainfall #heatwave #mausam #monsoon2025 #weatherforecast@moesgoi @ndmaindia @DDNational @airnewsalerts pic.twitter.com/EF3faP6clM— India Meteorological Department (@Indiametdept) June 11, 2025

Mumbai Air Quality Update

Despite erratic weather, Mumbai's Air Quality Index (AQI) has shown significant improvement:

• As per Sameer app by the CPCB, the city recorded an AQI of 50, classified as “Good”.

• This is a welcome change after months of high pollution levels and respiratory discomfort.

Health Concerns Spike as Monsoon Fluctuates

Doctors across Mumbai report a surge in seasonal health issues—beyond the usual cold, flu, and vector-borne illnesses like dengue and malaria. The high humidity combined with sporadic rain and dry heat is causing several other ailments.

1. Severe Nasal Allergies

• Increased humidity leads to heavy breathing, causing germ inhalation.

• Outdoor exposure intensifies risks of nasal tract irritation and sinusitis flare-ups.

• Patients often blow their noses forcefully, risking eardrum damage or lung stress.

2. Fatigue and Body Aches

• Many working-class individuals report unusual body pain, joint stiffness, and mild fever.

• Doctors attribute this to persistent sweating and the body's inability to adapt to the humidity shifts.

3. Fungal Infections

• Constant sweating causes blocked sweat glands, especially in skin folds.

• There’s been a noticeable uptick in ringworm and other fungal infections.

• High humidity facilitates fungal growth even during the cooler rainy days.

4. Medical Advice from Experts

• Avoid self-medication during this transitional weather phase.

• Seek medical attention at the first signs of symptoms.

• Delayed treatment often requires stronger drugs with potential side effects.

• Change wet clothes immediately to reduce fungal risks.

As Mumbai navigates its unpredictable monsoon phase, both the weather and its health consequences demand serious attention. With the IMD issuing dynamic alerts and doctors warning of environmental health triggers, it’s critical for citizens to remain informed, cautious, and proactive. Whether you're a commuter, a fisherfolk, or a student, staying prepared can make all the difference during these volatile weather weeks.

With inputs from agencies

Image Source: Multiple agencies

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