Kochi Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Kochi, Kochi, Japan. This average is based on long-term data collected between 1990 and 2020. Let's explore the details to provide you with a complete overview.

Kochi has a relatively rain/snowy climate with high precipitation levels, averaging 2572 mm (101 in) of rain/snowfall annually. Despite the high annual total, it does experience a distinct 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 Kochi, bring significant changes in precipitation. The wettest month, June, receives heavy rainfall, with an average of 373 mm (15 in) of precipitation. This rainfall is distributed across 19 rainy days.

In contrast, the driest month, January, experiences much less rainfall, totaling 77 mm (3 in) over 13 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

June, the wettest month, has a maximum daytime temperature of 26°C (79°F). During the driest month January you can expect a temperature of 11°C (52°F). For more detailed insights into the city's temperatures, visit our Kochi Temperature page.

Annual Rainfall in Japan: City Comparison

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

Kochi vs World: Rainfall Compared

Kochi's average annual precipitation is 2572 mm (101 in). Let's compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm (49 in) of annual precipitation, including significant snowfall during the winter.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.

Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.

Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

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.

Climate change is affecting precipitation patterns worldwide, including Kochi:

• 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 Kochi's weather, including sunshine hours, humidity levels, and temperature data, visit our Kochi Climate page.