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Climate - Paraguay


Average weather, temperature, rainfall, sunshine

Flag - Paraguay

Map - Paraguay

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Index


  • Introduction
  • North-west - Mariscal Estigarribia
  • Center-south - Asunción, Encarnación

Introduction


In Paraguay, the climate is subtropical, with very mild winters from mid-May to mid-August (which are dry in the north-west and rainy in the south-east) and long and very hot summers from November to March, with possible showers and thunderstorms in the afternoon throughout the country. However, given that the country is exposed to different air masses, it can experience rapid changes in temperature.
The country is in the Southern Hemisphere, so the seasons are reversed in comparison with North America or Europe.
In the northwestern part of the country, sparsely populated, we find the region called Chaco Boreal, ie the northern part of the Gran Chaco, a plain occupied by savannah, which extends into the neighbouring countries, i.e. Brazil, Argentina and Bolivia, while the central-eastern part is more humid and often marshy.
The rains increase proceeding from the north-west to the south-east: the driest area is the Gran Chaco, where precipitation drops below 1,000 millimeters (40 inches) per year, while the rainiest area is that of the Paraná River, covered by forests, where annual precipitation approaches 2,000 mm (80 in).
The main differences in the rainfall are found in winter, which is dry in the Chaco and rainy in the south-east of the country; so, the south-east, being rainy even in winter, has no dry season. During winter, in fact, the eastern and southern parts of the country are affected by weather fronts, which usually spare the north. Spring and autumn are rainy as well. However, the rains in countries having a tropical or sub-tropical climate are irregular: weeks may well pass without rain, and then heavy showers or downpours can occur, maybe in a few days, releasing large amounts of water on the ground.
Although the winter in Paraguay is mild, the country, especially in the south, can be affected by cold air outbreaks from May to September (the cold wind blowing from Argentina is called Pampero), which can lead to nighttime temperatures around freezing (0 °C or 32 °F), but sometimes even a little below. In Paraguay, however, snow is virtually unknown, and daytime temperatures are mild even in these circumstances.
Throughout the year, Paraguay is also exposed to warm air masses, which can bring warm days even in winter, with peaks above 30 °C (86 °F). During summer, however, the heat is permanent, although it is generally torrid (hot and dry) in the north-west, with peaks above 40 °C (104 °F), and more humid (therefore more uncomfortable) in the eastern and southern regions.
However, heat waves can occur from mid-August to April. Between the end of September and the beginning of October 2020, the temperature reached 45.5 °C (114 °F) in Pozo Hondo, in the northwest on the border with Argentina (national record), and 42.8 °C (109 °F) in Asunción.

North-west


Mariscal Estigarribia

In the northwest, the Gran Chaco is very hot in the summer, and it is still quite warm in the winter, at least during the day, as we can see from the average temperatures of Mariscal Estigarribia.
Mariscal Estigarribia - Average temperatures
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January233529.2739684.5
February223428.3729482.9
March223327.4719281.4
April183024.4658675.8
May162721.5618170.7
June142519.5577867.1
July132619.5558067.1
August142921.4588470.6
September173123.9628875
October203427689380.5
November213427.7709481.9
December223528.8729583.8
Year18.431.324.865.288.376.5

In this northern area, as mentioned, the rainfall is lower than 1,000 mm (40 in) per year, and winter is dry. Here is the average rainfall.
Mariscal Estigarribia - Average precipitation
MonthMillimetersInchesDays
January1305.18
February953.76
March1405.58
April7536
May401.65
June2513
July100.42
August150.62
September200.83
October552.25
November953.77
December1204.77
Year82532.562

In the far north, near the border with Bolivia, the average daily temperature rises above 20 °C (68 °F) even in the coldest months, so the climate can be called tropical.

Center-south


Asunción

Asuncion

In the capital, Asunción, located in the southwest, a short distance from the border with Argentina, the average daily temperature ranges from 29 °C (84 °F) in January to 18.5 °C (65.5 °F) in July.
Asuncion - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January233528.8739583.9
February223428.1729382.5
March213326.9709180.5
April193024.4668676
May152620.5597868.8
June142519.3577666.7
July132518.7557765.7
August142720.9588169.6
September162922.8618573
October193125.3678877.5
November203226.1689079
December223427.8719382.1
Year18.23024.0564.886.175.5

Precipitation amounts to nearly 1,400 mm (55 in) per year, including more than 100 mm (4 in) per month from October to May, while there's a remarkable decrease in winter, with a minimum of 40 mm (1.6 in) in July. In fact, looking at the map above, we can see that the capital is located in the center of the country, halfway between the north-west, which has a dry winter, and the south-east, which is rainy in winter as well. Here is the average precipitation.
Asuncion - Average precipitation
MonthMillimetersInchesDays
January1455.78
February1305.17
March1204.77
April1656.58
May1154.57
June803.17
July401.64
August7535
September903.56
October1305.18
November1656.58
December1505.98
Year140055.183

Despite the thunderstorms, the amount of sunshine in Paraguay is good in summer, while in winter, sunny days alternate with cloudy days. Here are the sunshine hours per day in Asunción.
Asuncion - Sunshine hours
MonthAverageTotal
January9275
February8.5245
March8255
April7.5230
May6.5205
June5.5165
July6.5195
August7225
September7205
October8240
November9270
December9.5295
Year7.72805

In the east, the city of Pedro Juan Caballero, being located at 600 meters (2,000 feet) above sea level, is less hot in summer and cooler in winter.

Encarnación

In the far south-east, in Encarnación, the temperature is a few degrees lower throughout the year. Here are the average temperatures.
Encarnacion - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January213327.2709281
February213326.6699179.9
March193125.3678877.5
April172922.8628473
May132519567766.3
June122317.4537463.3
July102316.6517361.9
August122618.8547865.8
September142720.6578169.1
October173023.3628574
November183124.3648875.8
December203326.5689179.7
Year16.128.622.361.183.472

In addition, the rains in Encarnación are more abundant: they exceed 100 mm (4 in) per month even in winter, and there is no dry season. Here is the average rainfall.
Encarnacion - Average precipitation
MonthMillimetersInchesDays
January1505.99
February1606.38
March1405.57
April1606.38
May1455.77
June1355.38
July1054.18
August1154.58
September1505.99
October1807.19
November1606.39
December1505.99
Year176069.398

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 Concepcion
 Encarnacion

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