Mumbai's Colaba area experienced an unseasonably hot day, recording a maximum temperature of 37.4°C, which is a significant 5.6°C above the usual average for this time of year. This reading marks the highest temperature recorded in South Mumbai for the month of October since 2013. The unusual heat was compounded by high humidity levels, which made conditions feel even more uncomfortable for residents across the city.
According to the India Meteorological Department (IMD), the temperature in Colaba was notably higher than in the suburbs, which typically experience more moderate weather. The IMD reported that Colaba also recorded a minimum temperature of 27.5°C early in the morning, which was 2.2°C above normal. In comparison, the Santacruz observatory, which serves as Mumbai’s baseline weather station, logged a maximum temperature of 36.9°C, exceeding the normal by 4.6°C.
- Highest October temperature since 2013 — Colaba's temperature reached 37.4°C, significantly above average.
- Humidity exacerbating discomfort — High humidity levels contributed to the heat's intensity.
- Expectations of continued heat — IMD forecasts daytime temperatures between 35°C and 37°C for the next few days.
The early October heatwave comes in the wake of the southwest monsoon's withdrawal from the city. A similar temperature spike was noted on October 8, 2024, when Santacruz recorded a maximum of 36.5°C. This year's unusual weather pattern has raised concerns among residents and meteorologists alike about the implications of climate change and shifting weather norms.
Senior IMD scientist Sushma Nair provided insights into the causes of this unusual heat. She explained that the transition period after monsoon withdrawal often leads to significant temperature fluctuations. "Monsoon should withdraw from Mumbai in a day or two. This is a period of transition, when wind patterns change from westerlies to easterlies and blocks the setting of sea breeze and delaying its onset over the city. There was also an anti-cyclone near Mumbai that contributed to the high temperature," Nair stated. She also noted the presence of an anti-cyclone near Mumbai, which has contributed to the higher temperatures being recorded.
Looking ahead, Mumbai is expected to remain hot and humid, with the IMD predicting generally clear skies and a maximum temperature around 35°C for the following day. The minimum temperature recorded was 29°C in the morning. There are no rainfall alerts for the upcoming week, suggesting that heavy rain is unlikely, which may further prolong the current heat conditions. Additionally, Mumbai's air quality index (AQI) remains at 72, categorizing it as 'Moderate'.
