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The Top 10 Countries With The Most Rainfall In The World

The only phenomenon responsible for accumulating freshwater on Earth is precipitation. Our world would not exist without precipitation. As a result, the entire ecosystem depends on the amount of rainfall it receives each year. Any disruption in this cycle can cause large-scale droughts and famines, resulting in starvation. It is intriguing to know that there is a great deal of disproportionality when we study patterns of rain in different parts of the world. In some places, the rainfall rate is extremely high, while it is very minimal or nonexistent in other places. It is proven that countries in tropical areas with thick green forests receive the most rain each year. The topic of today’s discussion is the Top 10 Countries with Most Rainfall in the World.


Where does it rain the most in the world ? On this day, we will discuss which countries have the highest precipitation rates. The study reveals that excessive rainfall may support live, but destroy it on the other hand through a large number of floods it causes in many states. The following top ten countries experience heavy, constant rainfall throughout the year.


Bangladesh lies on the edge of a bay with several rivers, and the monsoon climate of the country brings heavy rains to most of its parts. The monsoon season generally lasts from June to October. Nearly 80% of the rainfall occurs during this time. Near the foothills of the Himalayas receive the most rainfall, which includes the Sylhet region. The average annual precipitation is estimated at 2666 millimeters.


With its reservoirs of warm water, Indonesia is a beautiful country with a tropical climate that causes more rain. Warm waters cover 81% of the total land area. The monsoon season lasts from December to March. Rainfall is highest in the western and northern parts of the country. It is estimated that the country receives almost 2702 mm of rainfall each year.


Brunei is also located in the tropical belt of the world, so it receives most rain. Mostly sub-tropical and tropical climate conditions result in heavy rain and hot weather with high humidity. Precipitation averages 2722 millimeters per year, making it the 8th wettest country in the world.


Malaysia comes next in the list with 2875 millimeters of precipitation per year. Additionally, it is located in a tropical region of the world, which results in heavy rainfall. Here too, the monsoon season begins in early December and ends in early March. The rainiest regions are located in the north and west, such as the slopes of Sarawak and Sabah, which receive more than 70% of the total precipitation this country receives.


The country of Costa Rica is known for its sandy white beaches, which attract many tourists from around the world. This is the perfect place to spend your summer doing surfing and sunbathing. Each year, this country also receives a heavy spell of rain that begins in May and lasts for seven months. It is advised that tourists avoid visiting the beaches during these months because the tides are high. Recent statistics show that the country receives an average rainfall of 2926 mm per year.


In Panama, the monsoon season begins in April and lasts until December. You’re right! The rainy season lasts for nine months. Almost every year, 2926 millimeters of rain fall during this period. The geography of Panama alone is responsible for excessive rains. The vapors are carried from the north and northeast of the Caribbean, which causes rain. The majority of the rain falls near the coastline.


Solomon Islands is ranked 4th in the list of top ten countries with most rainfall. Discover two distinct climates, one wet and the other dry. Rainy season begins in February and ends in May, while the second round of wet season occurs from September to November. The country also faces the threat of typhoons crossing from the far north of the islands. There are 3,028 millimeters of precipitation on average every year.


There are 10 countries in the world with the most rainfall, and Papua New Guinea is ranked third. The monsoon season usually starts in December and ends in March, causing an average annual rainfall of 3142 millimeters. The western parts and northern parts of the country receive the most arainfall. If rainwater is not properly utilized or channeled, flooding and destruction will occur.


There are two phases to the rainy season in the country. The first short season begins in October and lasts until November, while the second longer season runs from March to May and both seasons have high rainfall. The total average precipitation for both seasons is approximately 3200 mm per year. Around and near the equator, the country receives the most rain. It is ranked 2nd on the list of countries with the most rainfall.


Precipitation in Colombia is estimated to be 3240 millimeters per year. A region of the state is permanently under the spell of floods due to excessive and heavy rainfall. Areas facing the Pacific receive the most rain. Here, it rains almost every day. Because of this, the country has an abundance of rainforests. As we moved towards the eastern part of the country, precipitation decreased.



  1. Columbia – 3240
  2. Sao Tome – 3200
  3. Papa New Guinea -3142
  4. Solomon Island – 3028
  5. Panama – 2929
  6. Costa Rica – 2926
  7. Malaysia – 2875
  8. Brunei – 2722
  1. Indonesia – 2702
  2. Bangladesh – 2666

Here is the list of top-10 rainiest cities in the world 2024:

Rainiest Cities in the World 2024

RankCityLocationAnnual Rainfall (in inches)
1.MawsynramMeghalaya, India467
2.CherrapunjiMeghalaya, India463
3.TutendoColombia, South America463
4.Cropp RiverNew Zealand453
5.Bioko IslandEquatorial Guinea411
7.Big BogMaui, Hawaii404
8.Puu KukuiMaui, Hawaii386
9.Mount WaialealeKauai, Hawaii384
10.Mount EmeiSichuan Province, China321
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