Climate - Asuncion (Paraguay)
Average weather, temperature, rainfall, sunshine hours
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Climate chart - Asuncion (Paraguay)
The climate of Asunción is subtropical, with very mild winters (from May to August), and very hot, muggy and rainy summers (from November to March).
The city is the capital of Paraguay and is located in the south of the country, on the border with Argentina, at 25 degrees south latitude. The Pilcomayo River marks the border with Argentina north of the city, and joins the Paraguay River near Asunción. Across the border is the Argentine town of Clorinda.
The rains are abundant in the hot period: precipitation exceeds 100 millimeters (4 inches) per month from October to May. Winter is the driest season: in July and August, it rains on average for 4/5 days a month. In summer, the rains often occur in the form of thunderstorms, sometimes intense and accompanied by hail and gusts of wind. When the rains are particularly abundant, the river can overflow, flooding parts of the city.
In winter, clashes between air masses can lead to sudden changes in temperature. There are hot periods, with highs around 30 °C (86 °F) or higher, however, there can also be quite cold periods, usually of short duration, in which the temperature can drop to about 0 °C (32 °F) at night, while during the day it can remain around 11/12 °C (52/54 °F).
Instead, from mid-August to April there can be heat waves, in which the temperature reaches 40 °C (104 °F). Between late September and early October 2020, the temperature reached or exceeded 40 °C (104 °F) for six out of eight days, and reached a maximum of 42.8 °C (109 °F).
Asuncion - Climate data
The average temperature of the coldest month (July) is of 18.7 °C (65.7 °F), that of the warmest month (January) is of 28.8 °C (83.9 °F). Here are the average temperatures.Asuncion - Average temperatures (1991-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
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| January | 22.9 | 34.8 | 28.8 | 73 | 95 | 83.9 |
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| February | 22.3 | 33.8 | 28.1 | 72 | 93 | 82.5 |
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| March | 21.2 | 32.7 | 26.9 | 70 | 91 | 80.5 |
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| April | 18.7 | 30.2 | 24.4 | 66 | 86 | 76 |
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| May | 15.2 | 25.8 | 20.5 | 59 | 78 | 68.8 |
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| June | 14 | 24.6 | 19.3 | 57 | 76 | 66.7 |
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| July | 12.7 | 24.8 | 18.7 | 55 | 77 | 65.7 |
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| August | 14.3 | 27.5 | 20.9 | 58 | 81 | 69.6 |
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| September | 16.2 | 29.3 | 22.8 | 61 | 85 | 73 |
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| October | 19.2 | 31.4 | 25.3 | 67 | 88 | 77.5 |
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| November | 20 | 32.2 | 26.1 | 68 | 90 | 79 |
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| December | 21.9 | 33.7 | 27.8 | 71 | 93 | 82.1 |
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| Year | 18.2 | 30 | 24.05 | 64.8 | 86.1 | 75.5 |
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Precipitation amounts to 1400 millimeters (55.1 inches) per year: it is therefore quite abundant. It ranges from 40 mm (1.6 in) in the driest month (July) to 165 mm (6.5 in) in the wettest ones (April, November) Here is the average precipitation.Asuncion - Average precipitation| Month | Millimeters | Inches | Days |
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| January | 145 | 5.7 | 8 |
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| February | 130 | 5.1 | 7 |
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| March | 120 | 4.7 | 7 |
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| April | 165 | 6.5 | 8 |
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| May | 115 | 4.5 | 7 |
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| June | 80 | 3.1 | 7 |
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| July | 40 | 1.6 | 4 |
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| August | 75 | 3 | 5 |
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| September | 90 | 3.5 | 6 |
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| October | 130 | 5.1 | 8 |
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| November | 165 | 6.5 | 8 |
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| December | 150 | 5.9 | 8 |
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| Year | 1400 | 55.1 | 83 |
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There are on average around 2805 sunshine hours per year. Here are the average hours of sunshine per day.
Asuncion - Sunshine hours| Month | Average | Total |
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January | 9 | 275 | February | 8.5 | 245 | March | 8 | 255 | April | 7.5 | 230 | May | 6.5 | 205 | June | 5.5 | 165 | July | 6.5 | 195 | August | 7 | 225 | September | 7 | 205 | October | 8 | 240 | November | 9 | 270 | December | 9.5 | 295 | Year | 7.7 | 2805 |
Asuncion - Weather by month
Based on the period 1991-2020
January, the hottest month of the year, is generally a very hot month. The average temperature is of 28.8 °C (84 °F), with a minimum of 22.9 °C (73.2 °F) and a maximum of 34.8 °C (94.6 °F).
On the coldest nights of the month, the temperature usually drops to around 18 °C (64.5 °F). However, it dropped to 13.2 °C (55.8 °F) in January 1992.
On the warmest days of the month, the temperature usually reaches around 38 °C (100.5 °F). However, it reached 40.8 °C (105.4 °F) in January 2013.
Precipitation amounts to 145 mm (5.7 in), distributed over 8 days.
The day lasts on average 13 hours and 30 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 67%.
The average wind speed is 11 kph (7 mph).
February is generally a very hot month. The average temperature is of 28.1 °C (83 °F), with a minimum of 22.3 °C (72.2 °F) and a maximum of 33.8 °C (92.8 °F).
On the coldest nights of the month, the temperature usually drops to around 17 °C (62.5 °F). However, it dropped to 12.4 °C (54.3 °F) in February 1991.
On the warmest days of the month, the temperature usually reaches around 38 °C (100 °F). However, it reached 40.8 °C (105.4 °F) in February 2010.
Precipitation amounts to 130 mm (5.1 in), distributed over 7 days.
The day lasts on average 12 hours and 55 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 70%.
The average wind speed is 11 kph (7 mph).
March is generally a warm to hot, muggy month. The average temperature is of 26.9 °C (80 °F), with a minimum of 21.2 °C (70.2 °F) and a maximum of 32.7 °C (90.8 °F).
On the coldest nights, the temperature usually drops to around 15.5 °C (59.5 °F). However, it dropped to 9 °C (48.2 °F) in March 2012.
On the warmest days, the temperature usually reaches around 37 °C (98.5 °F). However, it reached 40.6 °C (105.1 °F) in March 2004.
Precipitation amounts to 120 mm (4.7 in), distributed over 7 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
April is generally a warm to hot, muggy month. The average temperature is of 24.4 °C (76 °F), with a minimum of 18.7 °C (65.7 °F) and a maximum of 30.2 °C (86.3 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 11 °C (51.5 °F). However, it dropped to 6.5 °C (43.7 °F) in April 1999.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 35.5 °C (95.5 °F). However, it reached 40 °C (104 °F) in April 1993.
Precipitation amounts to 165 mm (6.5 in), distributed over 8 days.
The day lasts on average 11 hours and 30 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
May is generally a warm month. The average temperature is of 20.5 °C (69 °F), with a minimum of 15.2 °C (59.3 °F) and a maximum of 25.8 °C (78.4 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 7 °C (45 °F). However, it dropped to 2.6 °C (36.7 °F) in May 2008.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 32 °C (90 °F). However, it reached 36 °C (96.8 °F) in May 2020.
Precipitation amounts to 115 mm (4.5 in), distributed over 7 days.
The day lasts on average 10 hours and 55 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
June is generally a warm month. The average temperature is of 19.3 °C (67 °F), with a minimum of 14 °C (57.1 °F) and a maximum of 24.6 °C (76.3 °F).
On the coldest nights, the temperature usually drops to around 4.5 °C (40 °F). However, it dropped to -1.2 °C (29.8 °F) in June 2011.
On the warmest days, the temperature usually reaches around 30.5 °C (87.5 °F). However, it reached 33.5 °C (92.3 °F) in June 2003.
Precipitation amounts to 80 mm (3.1 in), distributed over 7 days.
The day lasts on average 10 hours and 35 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
There are on average 5.5 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 12 kph (8 mph).
July, the coldest month of the year, is generally a warm month. The average temperature is of 18.7 °C (66 °F), with a minimum of 12.7 °C (54.9 °F) and a maximum of 24.8 °C (76.6 °F).
On the coldest nights of the month, the temperature usually drops to around 2.5 °C (36.5 °F). However, it dropped to -1 °C (30.2 °F) in July 2017.
On the warmest days of the month, the temperature usually reaches around 32 °C (89.5 °F). However, it reached 34.7 °C (94.5 °F) in July 2003.
Precipitation amounts to 40 mm (1.6 in), distributed over 4 days.
The day lasts on average 10 hours and 50 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 69%.
The average wind speed is 14 kph (8 mph).
August is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 20.9 °C (70 °F), with a minimum of 14.3 °C (57.8 °F) and a maximum of 27.5 °C (81.5 °F).
On the coldest nights of the month, the temperature usually drops to around 4.5 °C (40 °F). However, it dropped to 0 °C (32 °F) in August 1993.
On the warmest days of the month, the temperature usually reaches around 35.5 °C (96 °F). However, it reached 40 °C (104 °F) in August 2020.
Precipitation amounts to 75 mm (3 in), distributed over 5 days.
The day lasts on average 11 hours and 20 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 62%.
The average wind speed is 15 kph (9 mph).
September is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of 22.8 °C (73 °F), with a minimum of 16.2 °C (61.2 °F) and a maximum of 29.3 °C (84.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 7 °C (44.5 °F). However, it dropped to 2.6 °C (36.7 °F) in September 2002.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 37.5 °C (99 °F). However, it reached 42.2 °C (108 °F) in September 2020.
Precipitation amounts to 90 mm (3.5 in), distributed over 6 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 61%.
The average wind speed is 15 kph (9 mph).
October is generally a warm to hot month. The average temperature is of 25.3 °C (78 °F), with a minimum of 19.2 °C (66.6 °F) and a maximum of 31.4 °C (88.4 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 12 °C (54 °F). However, it dropped to 7.6 °C (45.7 °F) in October 1995.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 38 °C (100 °F). However, it reached 42.8 °C (109 °F) in October 2020.
Precipitation amounts to 130 mm (5.1 in), distributed over 8 days.
The day lasts on average 12 hours and 40 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 66%.
The average wind speed is 15 kph (9 mph).
November is generally a warm to hot month. The average temperature is of 26.1 °C (79 °F), with a minimum of 20 °C (68 °F) and a maximum of 32.2 °C (90 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 13.5 °C (56.5 °F). However, it dropped to 9 °C (48.2 °F) in November 1992.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 37.5 °C (99.5 °F). However, it reached 41 °C (105.8 °F) in November 2019.
Precipitation amounts to 165 mm (6.5 in), distributed over 8 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 65%.
The average wind speed is 13 kph (8 mph).
December is generally a very hot month. The average temperature is of 27.8 °C (82 °F), with a minimum of 21.9 °C (71.5 °F) and a maximum of 33.7 °C (92.7 °F).
On the coldest nights of the month, the temperature usually drops to around 16 °C (61 °F). However, it dropped to 10 °C (50 °F) in December 2010.
On the warmest days of the month, the temperature usually reaches around 37.5 °C (99.5 °F). However, it reached 40.6 °C (105.1 °F) in December 2008.
Precipitation amounts to 150 mm (5.9 in), distributed over 8 days.
The day lasts on average 13 hours and 40 minutes. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
There are on average 9.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 68%.
The average wind speed is 12 kph (7 mph).
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