Heatwaves and Supply Chains: Mumbai’s Resilience Tested in March Mumbai is ending the month with a sigh of relief as temperatures stabilize at 33°C after three intense heatwave warnings earlier in March. IMD scientists note that a shift in the anticyclone over South Gujarat has brought in cooler sea breezes, providing much-needed respite. The city’s AQI stands at a satisfactory 92, a rare green spot for the metropolis during the transition to summer.