Mumbai is hot. That is not news. But when the India Meteorological Department issues a yellow alert for Mumbai, Thane, Palghar and Raigad in the first week of March, before summer has even properly arrived, it is worth paying attention.
Mumbai experienced its first heatwave of the 2026 season on 6 March, with maximum temperatures reaching 38.9 degrees Celsius in the suburbs and 36.2 degrees Celsius in South Mumbai. The Santacruz weather station recorded a maximum temperature of 38.7 degrees Celsius, significantly higher than the seasonal average, while the Colaba Coastal Observatory recorded around 35.7 degrees Celsius, several degrees above normal levels.
Those are not comfortable numbers for early March. They are, frankly, alarming ones.
What the Yellow Alert Actually Means
The IMD yellow alert is part of the weather department’s colour-coded warning system. A yellow alert generally means residents should stay updated and be prepared, as conditions may escalate if temperatures continue to rise. It is not a red flag, but it is not nothing either. The IMD issued the yellow alert specifically for hot and humid conditions, with maximum temperatures forecast to reach 37 degrees Celsius across the Mumbai Metropolitan Region.
Why Temperatures Are Spiking
IMD officials attributed the spike in temperatures to easterly winds and an anticyclonic circulation near south Gujarat and neighbouring areas, which has led to increased heat and humidity across the city. Officials also noted that as wind patterns change, there could be a slight dip in temperature, but overall mercury will remain above 30 degrees Celsius through the month of March.
The Rest of Maharashtra
It is not just Mumbai. In eastern Maharashtra, including Nagpur, Amravati, Akola, Yavatmal, Chandrapur and Gadchiroli, maximum temperatures are expected to range between 37 degrees Celsius and 41 degrees Celsius. Jalgaon reported a maximum of 38 degrees Celsius, while Solapur registered 38.4 degrees Celsius. Aurangabad and Malegaon both recorded 36.8 degrees Celsius. Even coastal Ratnagiri crossed 36 degrees Celsius. The heat, in short, is everywhere.
Air Quality Taking a Hit Too
Mumbai’s air quality index, which had been at a satisfactory level of 64 earlier in the week, fell to 111, with several areas recording AQI above 150. Kandivali West recorded 166, while Powai, Mulund West and Deonar also saw high readings. Heat and poor air together make for a genuinely unpleasant combination, especially for the elderly, children and outdoor workers.
What Lies Ahead
This is where things get a bit grim. The IMD’s Hot Weather Outlook for March to May 2026 suggests that most parts of the country are very likely to experience above-normal minimum and maximum temperatures, with an increased number of heatwave days anticipated over large areas of the country including parts of Maharashtra. Heatwave conditions are expected in April and May, and there will be no respite from the hot and humid weather until the monsoon.
Authorities have urged residents to stay hydrated, avoid direct exposure to sunlight, and limit outdoor activities between noon and 4 pm. Farmers, labourers, senior citizens and tourists have been specifically advised to exercise caution.
March has barely begun. The city is already sweating through its shirt. The months ahead are going to demand more than a fan and a cold drink. Plan accordingly.
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