Bombay Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Bombay. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s break down all the details for a clearer picture.

Bombay has a relatively rainy climate with high precipitation levels, averaging 1199 mm of rainfall annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

Bombay offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between July (129 mm) and March (75 mm) is not too significant, making the climate enjoyable for visitors and residents alike.

July, the wettest month, has a maximum daytime temperature of 16°C. The city receives 130 hours of sunshine in this period. During the driest month March you can expect a temperature of 24°C. For more detailed insights into the city’s temperatures, visit our Bombay Temperature page.

Annual Precipitation in New Zealand

The map below shows the annual precipitation across New Zealand. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Bombay’s average annual precipitation is 1199 mm. Let’s compare this to some popular worldwide tourist destinations:

Athens, Greece, receives an average annual precipitation of 400 mm, making it one of the drier Mediterranean climates with rainfall mostly in winter.

Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.

Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.

Ho Chi Minh City, Vietnam, receives 1955 mm of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Interesting weather facts

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm per year, with some years recording virtually no rainfall.
• Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

For more detailed information about Bombay’s weather, including sunshine hours, humidity levels, and temperature data, visit our Bombay Climate page.