Mumbai: Mumbai experienced an unusually early spell of October heat on Friday, with Colaba recording a maximum temperature of 37.4°C, which was 5.6°C above normal. The reading marked the highest October temperature recorded in South Mumbai since at least 2013, as high humidity added to the discomfort across the city.Colaba Records Higher Minimum Temperature According to the India Meteorological Department (IMD), Colaba was significantly warmer than the suburbs.