Average annual precipitation by countries in Latin America

[Ranger0075]

Northern and Central Chile is dry while Southern regions such as Valdivia has heavy rain which skew the average precipitation of the country?

For example, Ancud has around 2539.6 mm of average precipitation: https://en.wikipedia.org/wiki/Ancud

Melinka, a town in the Aysen region has 3137.7 mm of average precipitation: https://en.wikipedia.org/wiki/Melinka

Puerto Aysen receives approx 2238.5 mm on average: https://en.wikipedia.org/wiki/Puerto_Ays%C3%A9n

Is the climate data for these places reliable?

Yes, but it's about averages, if we take into consideration ocean effects such like el niño or la niña which happens some years (being el niño often), then we can change these numbers kinda drastically

[RMuller]

Yes also add Ecuador and Peru because they also have very high annual precipitations.

Peru is a rather complex case because the coastal areas like Lima literally has no rain and andean highlands such as cusco, huancayo, puno receive approximately 700-900 mm of precipitation. So its must be from the amazon lowland jungle area which also makes up the rest of Peru's territory that heavily skew the average annual precipitation to 1732 mm which could unrepresentative of the whole nation as there are many regions where they are very low to no rain/snow. As the amazon jungle regions of Peru has very heavy rain almost all year long.

So most of the rain must happen in the Amazon region? I believe Peru is mostly lowlands and highlands and only tropical in the Amazon region.I wouldn't consider Peru a tropical country.

[Zanzibar]

Yes, but it's about averages, if we take into consideration ocean effects such like el niño or la niña which happens some years (being el niño often), then we can change these numbers kinda drastically

Alright. Is there any data or records on the average annual precipitation of Chile for many different years?

[Zanzibar]

So most of the rain must happen in the Amazon region? I believe Peru is mostly lowlands and highlands and only tropical in the Amazon region.I wouldn't consider Peru a tropical country.

Anyway, to answer your question, that seems to be the case; rains seems to mainly occur in Amazon. Yep it seems the Amazon region which makes up a very significant percentage of the Peru's land area is the only area that can be considered tropical. There are two places which are considered lowlands in Peru: the Amazon and the coast. However, the latter is literally a long desert area with virtually no rain. Moreover, the Andean highlands also receive rather low amounts of precipitation around 700-900 mm on average, although it can go as low as less than 100 mm (in the case of Arequipa, for instance).

These cities are in the Amazonian area of Peru. They have a lot of rain compared to the coastal and highland regions

This is Iquitos, a city which is in the Amazon region. It has almost 3000 mm of rain annually: https://en.wikipedia.org/wiki/Iquitos#Climate

Puerto Maldonado, another city in the jungle area. It has around 2157 mm of rain per year: https://en.wikipedia.org/wiki/Puerto_Maldonado

Pucallpa which is also in the Amazon. 1565 mm of rain per year: https://en.wikipedia.org/wiki/Pucallpa

Moyobamba, seem to still be located in the Amazon area but has higher elevation and cooler average temperature compared to most other Amazonian towns/cities. Also has approx 1344 mm of rain which is less than other places in the jungle region but still a lot more than the coast and highlands: https://en.wikipedia.org/wiki/Moyobamba

Now compared to Lima, Trujillo, Piura and Tacna which are situated in the coast which is literally a desert.

Lima, virtually no rain: https://en.wikipedia.org/wiki/Lima#Climate

Trujillo, also hardly any rain: https://en.wikipedia.org/wiki/Trujillo,_Peru#Climate

Piura, on the Northern coast of Peru, very little amounts of average precipitation: https://en.wikipedia.org/wiki/Piura#Climate

Tacna which is on the far southern coast and borders Chile, almost zero rain: https://en.wikipedia.org/wiki/Tacna#Climate

Or compared to the Andean highlands with cities such as Arequipa, Cusco, Huanuco and Puno. These cities/towns also receives very low precipitation compared to the Amazonian areas:

Arequipa receives only 96.5 mm per year. That's literally desert-like with colder climates and high elevation: https://en.wikipedia.org/wiki/Arequipa#Climate

Cusco has an average annual precipitation of 737 mm: https://en.wikipedia.org/wiki/Cusco#...hy_and_climate

Huanuco in the highlands of Central Peru has a semi-arid climate with only 353.6 mm annually: https://en.wikipedia.org/wiki/Hu%C3%A1nuco

Puno which is located in Southern highlands close to Bolivia receives average annual precipitation of 751 mm: https://en.wikipedia.org/wiki/Puno#Climate

Therefore, yep, the coast and highlands are very dry compared to the amazon jungle territories of Peru. I feel that 1732 mm which is supposedly the average annual precipitation of Peru is heavily skewed as a result of the Amazon and thus rather unrepresentative and could be misleading as the rest of the country is very dry/arid and even desert. I am very convinced that if Peru lost at least a half or more of its Amazon territory to other countries like Brazil or due to deforestation, the average annual precipitation of the country will drastically decrease from 1732 mm to probably approximately 1200 or 1300 mm, which would be considered pretty dry for Latin American standards..

[Zanzibar]

So most of the rain must happen in the Amazon region? I believe Peru is mostly lowlands and highlands and only tropical in the Amazon region.I wouldn't consider Peru a tropical country.

Are you surprised by how dry Bolivia (only 1146 mm of average annual precipitation) is compared to Peru (1732 mm on average) and Ecuador (2200 mm of average yearly precipitation)? It seems like Bolivia doesn't have as much area with heavy amounts of rain unlike Peru and Ecuador.

[Zanzibar]

Cuba is very flat compared to the island of Santo Domingo (yes, this is his original name!), Jamaica and even Puerto Rico. That except for the easternmost part.

There are also many Caribbean, Sub Saharan African, South Asian, Oceanian, European, East Asian countries that have similar or even higher amounts of precipitation (rain/snow) than most Latin American nations.

-Grenada is #17 at 2350 mm, Saint Lucia ranks #21 at 2301 mm, Trinidad and Tobago ranks #25 at 2200 mm, Jamaica is the 30th most wettest country at 2051 mm per year, Haiti is #62 at 1440 mm.
-Sao Tome and Principe is the 2nd most wettest nation at 3200 mm, Liberia is the 15th most wettest out of 182 countries at at 2391 mm, Seychelles rank #20 at 2330 mm, Equatorial Guinea ranks #26 at 2156 mm, Democratic Republic of Congo ranks #55 at 1543 mm
-Bangladesh is the 11th most wettest nation at 2666 mm of average annual precipitation, Bhutan is #24 at 2200 mm, Maldives is #36 out of 182 countries at 1972 mm, Sri Lanka ranks 46th at 1712 mm, Nepal ranks 59th at 1500 mm
-Papua New Guinea is the 3rd most wettest country with 3142 mm of yearly precipitation, Solomon Islands is the 4th rainiest place at 3028 mm, Samoa is #7 at approx 2880 mm per year, Fiji is #12 at 2592 mm, Vanuatu ranks #33 at 2000 mm on average.
-Iceland ranks #37 out of 182 nations at 1940 mm, Switzerland is the #56 at 1537 mm, Albania is the #61 at 1485 mm on yearly average, Norway ranks #65 at 1414 mm
-Mauritius ranks #32 at 2041 mm, New Zealand is the 45th out of 182 countries in the annual average amount of precipitation (rain/snow) at 1732 mm, Madagascar ranks #58 at 1513 mm, Timor Leste ranks #60 at 1500 mm
-Indonesia is #10 at 2702 mm, Philippines ranks #18 at 2348 mm, Vietnam is #41 at 1821 mm, Japan is the 48th most wettest country at an average annual precipitation of 1668 mm, Thailand is #51 at 1622 mm

[Ranger0075]

Alright. Is there any data or records on the average annual precipitation of Chile for many different years?

Sorry, some of your quotes doesn't show me. I would need to do a search, but I am sure we've different seasons causes by pacific ocean effects. I am an engineer, my geography's knownledge is almost to zero lol

[Zanzibar]

Sorry, some of your quotes doesn't show me. I would need to do a search, but I am sure we've different seasons causes by pacific ocean effects. I am an engineer, my geography's knownledge is almost to zero lol

That's strange. I wonder why some of it doesn't show up for you.

Oh ok. Well would still appreciated it if you can find the average annual precipitation data in the last 10 or 20 years for Chile.

[samario]

Facts are facts. Indeed Colombia's Pacific Coast is super rainy to most other parts of the world averaging up to more than 10000mm of rain on average per year.

[Rafael Passoni]

"....a study concluded that total deforestation of the Amazon would result in a 10-20% decrease in rainfall in the coastal northwest US and up to 50% decrease in snowpack in the Sierra Nevada..."

South America will become drier, maybe a desert: "It is this Flying River that is faltering due to human activity, putting vast portions of the Amazon and southern South America at risk of drought."

Source:
https://www.amazonfrontlines.org/chr...leeding-river/