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Climate - Ecuador

Temperature, rainfall, prevailing weather conditions, when to go, what to pack

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Flag - Ecuador

Map - Ecuador

As the name suggests, Ecuador is bisected by the equator (in the north), the imaginary line that divides the Earth, in which the days last 12 hours throughout the year. One would expect, therefore, an equatorial climate, hot and humid with year-round rains, but this is only true for the eastern part of the country and the northernmost part of the coast, both covered by forests. The central part is in fact crossed by the Andes and is therefore more or less cold depending on altitude, while almost the entire western plain and coast, is affected by a cool ocean current, which lowers a bit the temperature and makes the climate more arid.

Ecuador, equatorial climate
In the far north-west of Ecuador, on the border with Colombia, and across the vast eastern Amazon area, the climate is equatorial, ie hot and humid with year-round rains. The amount of rainfall is quite remarkable, around 2,800/3,000 millimetres per year in most of the low-lying areas. The rains occur primarily in the form of heavy showers or thunderstorms in the afternoon. The period (relatively) less rainy goes from August to November in the north-west, while in the Amazon it goes from November to March, when, however, from 150 to 200 mm of rain per month fall. The average temperature ranges from 26 °C in the Southern Hemisphere summer (December-January), to 23 °C in winter (July is the coolest month). The relative humidity is constantly high and makes the heat sweltering.
In the central area Ecuador, along the eastern slopes of the Andes, we find the rainiest part of the country. In the city of Puyo, at almost 1,000 metres above sea level, therefore at the boundary between the tierras calientes and the tierras templadas, 4,300 millimetres of rain per year fall. It rains almost every day, and the sunshine is scarce because the sky is often cloudy.
Here is the average precipitation.
Average precipitation Puyo
Puyo J F M A M J J A S O N D Year
Prec. (mm) 300 295 390 455 325 390 340 345 355 360 365 370 4290
Days 21 19 22 23 22 22 22 21 21 23 21 21 258

The only consolation is that the altitude makes the temperatures pleasant, around 20 °C as daily average all year round. Here it doesn't really make sense to speak of "best time", however, January and February are the only months in which "only" 300 mm of rain per month fall.
Here are the average temperatures of Puyo.
Puyo average temperatures
Puyo J F M A M J J A S O N D
Min (°C) 17 17 17 17 17 16 16 16 16 16 17 17
Max (°C) 26 26 26 26 26 25 25 26 27 27 27 27

Ecuador, climate of the west
West of the Andes, there's a plain which has a tropical climate, with a dry season (July to November in the north, May to December in the south) and a wet season (December to June in the north, January to April in the south), although the rainfall varies greatly: in general, the coasts are drier than the areas at the foothills of the Andes, and the north is rainier than the south.
The temperature is high throughout the year, however, it decreases slightly in the austral winter and spring, as we can see from the temperature of Manta, located in the central part of the coast.
Manta average temperatures
Manta J F M A M J J A S O N D
Min (°C) 22 23 22 22 22 21 20 20 20 20 20 21
Max (°C) 30 30 30 30 30 29 28 28 28 28 28 29

On much of the coastline, the cool current inhibits the formation of clouds that can generate rains, for many months a year. However, the sunshine amount is low, because even in the dry period, the sky is often cloudy, and fogs and mists form. Here is the average rainfall.
Average precipitation Manta
Manta J F M A M J J A S O N D Year
Prec. (mm) 40 95 70 25 3 5 5 1 1 1 3 5 254
Days 5 7 6 4 1 1 1 0 0 0 1 1 27

Along the southern part of the coast (see Santa Elena, General Villamil Playas) there's even a desert, where less than 100 mm per year fall; rainfall is concentrated in the period from January to April. Even though generally the rains are very scarce in this period, in the years of El Niño there can be heavy rains, and even floods. In addition, in this period, although it's the warmest of year, the sunshine is not so frequent, because there is often a haze that covers the sun. The period from June to October is better: the heat is less intense and therefore more enjoyable, and it never rains. It must be said that the amount of sunshine is not good even in this period.
Continuing north, as mentioned in Manta the rainfall amounts to about 250 mm per year, while in Bahia de Caraquez and in Esmeraldas it's about 500 mm.
As you move away from the coast, the rains increase, reaching the highest levels at the foot of the Andes. From south to north, precipitation ranges from 1,000 mm per year in Guayaquil, to 2,000 mm in Montoya, to 2,800 mm in Santo Domingo de los Colorados, where it rains a lot from February to April, and it still rains a lot in June: here the driest months are definitely July and August, with less than 40 mm per month, anyway, from July to November, less than 70 mm per month fall.
Here is the average rainfall of Guayaquil, in the south central part, a short distance from the coast.
Average precipitation Guayaquil
Guayaquil J F M A M J J A S O N D Year
Prec. (mm) 230 242 252 153 60 33 10 1 2 3 6 34 1026
Days 18 20 20 14 6 2 1 0 0 1 1 4 87

In the north-central part of the coast, the sea is warm all year round, while in the southern part it becomes a little cool from July to November, as you can see in the following table.
Sea temperature Guayaquil
Guayaquil J F M A M J J A S O N D
Sea (°C) 24 26 25 24 24 23 22 21 21 22 22 23

As already mentioned, the climate of Ecuador is affected by a cycle in which normal periods alternate with those of El Niño and La Niña. During the years of "El Niño", the sea level rises by about 2/3 centimetres, the water (and air) temperature rises by a few degrees, and heavy rains affect the coastal zones, which are normally arid, in the period from December to May. Even the Andean areas receive more rainfall than usual. On the contrary, during the years of "La Niña", the temperature of the sea (and the air) becomes cooler than normal, and rainfall more scarce.

Ecuador, climate of the Andes
The central part of Ecuador is crossed by the Andes, which are divided into two mountain ranges, and include several volcanoes of considerable height. Glaciers start at a height of about 5,000 metres. In the Cordillera Occidental lies the volcano Chimborazo, the highest peak of the country with its 6,268 metres, while in the Cordillera Real we find Cotopaxi, 5,897 metres, Antisana, 5,704 metres and Cayambe, 5,790 metres.


Between the mountain ranges there are plateaus, in which we find important cities, like the capital Quito, which is the second highest capital in the world, being located at 2,850 metres above sea level. Here the temperatures are mild, spring-like throughout the year, with highs around 19/20 °C, but some days can be a bit warmer, and minima at night around 10 °C, but sometimes at night the temperature can approach the freezing point.
Quito average temperatures
Quito J F M A M J J A S O N D
Min (°C) 10 10 10 10 10 9 9 9 9 9 9 10
Max (°C) 18 18 18 18 18 19 19 19 20 19 19 18

The rainfall amount to 1,200 mm per year, and is frequent and abundant from October to May. Therefore, the best time here goes from June to mid-September, but in reality the only months where it rarely rains are July and August. In the capital, the amount of sunshine throughout the year is acceptable, but nothing more, because the sky is fairly often cloudy. Here is the average precipitation.
Average precipitation Quito
Quito J F M A M J J A S O N D Year
Prec. (mm) 120 130 155 185 130 55 20 25 80 135 95 105 1235
Days 13 14 17 19 16 9 4 4 9 16 12 12 145

At higher altitudes, the temperature decreases further. At 3,500 metres, the daily average temperature is around 7/8 °C throughout the year, this means that it's cold and can freeze at night.
Other cities, located at high altitudes in the Andes, are drier than the capital. For example in Cuenca, in the south, 710 mm of rain per year fall, which drop to 625 mm in Ibarra, located in the north.
Along the western slopes of the Andes, even at low altitudes, the sky is often overcast during the drier season (July-December).

If we want to find a single period which is best to visit Ecuador, we can choose the Northern Hemisphere summer, and in particular the months of July and August, which are the least rainy and the sunniest. It must be said, however, that in the area of the forest it rains a lot even in this period, and the amount of sunshine is low. On the other hand, along the west coast, although it rarely rains, the sky is often cloudy.

What to pack

For the Amazon, in the plain, loose fitting, lightweight clothing of natural fibres, maybe with long sleeves for mosquitoes; possibly a light sweatshirt and a light raincoat for thunderstorms. For the Amazon at low-mountain altitude (see Puyo), light clothes, sweatshirt and light jacket for the evening, raincoat.
For the western plains and the coast: light clothing, raincoat and lightweight sweatshirt in the rainy season (December to June in the north, January to April in the south), sweatshirt for the evening in the cooler season (June to September).
For the southernmost part of the coast, throughout the year, a sweatshirt for the evening; from June to September, a sweater or sweatshirt, a light jacket.
For Quito and the Andes, clothes for spring and autumn, sweatshirt or sweater, warm jacket for the evening, sun hat; raincoat or umbrella especially from October to May.
For the high mountains, warm clothes, down jacket, hat, gloves, scarf.

See also the climate of the Galápagos.

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