Munnar Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Munnar, Kerala, India. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Let's now guide you through the details for a complete overview.
Munnar has a relatively rainy climate with high precipitation levels, averaging 2791 mm (110 in) of rainfall annually. Despite the high annual total, it does experience a distinct dry and rainy season during certain months. Examine our detailed charts below to understand these seasonal patterns.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The seasons in Munnar, bring significant changes in precipitation. The wettest month, July, receives heavy rainfall, with an average of 433 mm (17 in) of precipitation. This rainfall is distributed across 11 rainy days.
In contrast, the driest month, January, experiences much less rainfall, totaling 28 mm (1.1 in) over 2 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.July, the wettest month, has a maximum daytime temperature of 25°C (77°F). The city receives 126 hours of sunshine in this period. During the driest month January you can expect a temperature of 28°C (82°F). For more detailed insights into the city's temperatures, visit our Munnar Temperature page.
Explore Munnar's Historical Precipitation: 2000-2026
Browse day-by-day precipitation records for Munnar spanning 27 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
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
Munnar vs World: Rainfall Compared
Munnar's average annual precipitation is 2791 mm (110 in). Let's compare this to some popular worldwide tourist destinations:
New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.
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.
Precipitation has a very strong role in determining the local climate and ecosystem:
- Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
- Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.
- The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
- Approximately 70% of lightning bolts strike land rather than oceans.
- A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.
For more detailed information about Munnar's weather, including sunshine hours, humidity levels, and temperature data, visit our Munnar Climate page.
