Vellore Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Vellore, Tamil Nadu, India. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Let's explore the details to provide you with a complete overview.
Generally, Vellore experiences moderate precipitation patterns, averaging 947 mm (37 in) yearly. However, this average masks significant seasonal variation, including a distinct dry season during certain months that are clearly visible in our monthly breakdown below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, October receives substantial rainfall, averaging 176 mm (6.9 in) of precipitation, recorded across 8 rainy days.
In contrast, the driest month, February brings less rainfall, with 8.5 mm (0.3 in) over a single rainy day.
October, the wettest month, has a maximum daytime temperature of 32°C (90°F). During the driest month February you can expect a temperature of 33°C (91°F). For more detailed insights into the city's temperatures, visit our Vellore Temperature page.
Annual Rainfall in India: City Comparison
The map below shows the annual precipitation across India. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Vellore vs World: Rainfall Compared
Vellore's average annual precipitation is 947 mm (37 in). Let's compare this to some popular worldwide tourist destinations:
The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.
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.
The proximity of a location to a large body of water can significantly affect its rainfall patterns:
- Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
- Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
- Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
- In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) 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 Vellore's weather, including sunshine hours, humidity levels, and temperature data, visit our Vellore Climate page.
