Climate - 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).




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.
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.
On average, there are around 2805 sunshine hours per year. Here are the average sunshine hours per day.

Asuncion - Weather by month

Based on the period 1991-2020
(January - February - March - April - May - June - July - August - September - October - November - December)

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In January, the warmest month of the year, the average temperature in Asuncion 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, in January 1992, it dropped to 13.2 °C (55.8 °F).
On the warmest days of the month, the temperature usually reaches around 38 °C (100.5 °F). However, in January 2013, it reached 40.8 °C (105.4 °F).
Precipitation amounts to 145 mm (5.7 in), distributed over 8 days.
On average, there are 275 hours of sunshine per month, i.e. 9 hours per day.
The average humidity is 67%.
The average wind speed is 11 kph (7 kph).

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In February, the average temperature in Asuncion 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, in February 1991, it dropped to 12.4 °C (54.3 °F).
On the warmest days of the month, the temperature usually reaches around 38 °C (100 °F). However, in February 2010, it reached 40.8 °C (105.4 °F).
Precipitation amounts to 130 mm (5.1 in), distributed over 7 days.
On average, there are 245 hours of sunshine per month, i.e. 8.5 hours per day.
The average humidity is 70%.
The average wind speed is 11 kph (7 kph).

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In March, the average temperature in Asuncion 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 of the month, the temperature usually drops to around 15.5 °C (59.5 °F). However, in March 2012, it dropped to 9 °C (48.2 °F).
On the warmest days of the month, the temperature usually reaches around 37 °C (98.5 °F). However, in March 2004, it reached 40.6 °C (105.1 °F).
Precipitation amounts to 120 mm (4.7 in), distributed over 7 days.
On average, there are 255 hours of sunshine per month, i.e. 8 hours per day.
The average humidity is 71%.
The average wind speed is 10 kph (6 kph).

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In April, the average temperature in Asuncion 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 of the month, the temperature usually drops to around 11 °C (51.5 °F). However, in April 1999, it dropped to 6.5 °C (43.7 °F).
On the warmest days of the month, the temperature usually reaches around 35.5 °C (95.5 °F). However, in April 1993, it reached 40 °C (104 °F).
Precipitation amounts to 165 mm (6.5 in), distributed over 8 days.
On average, there are 230 hours of sunshine per month, i.e. 7.5 hours per day.
The average humidity is 73%.
The average wind speed is 11 kph (7 kph).

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In May, the average temperature in Asuncion 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 of the month, the temperature usually drops to around 7 °C (45 °F). However, in May 2008, it dropped to 2.6 °C (36.7 °F).
On the warmest days of the month, the temperature usually reaches around 32 °C (90 °F). However, in May 2020, it reached 36 °C (96.8 °F).
Precipitation amounts to 115 mm (4.5 in), distributed over 7 days.
On average, there are 205 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 76%.
The average wind speed is 11 kph (7 kph).

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In June, the average temperature in Asuncion 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 of the month, the temperature usually drops to around 4.5 °C (40 °F). However, in June 2011, it dropped to -1.2 °C (29.8 °F).
On the warmest days of the month, the temperature usually reaches around 30.5 °C (87.5 °F). However, in June 2003, it reached 33.5 °C (92.3 °F).
Precipitation amounts to 80 mm (3.1 in), distributed over 7 days.
On average, there are 165 hours of sunshine per month, i.e. 5.5 hours per day.
The average humidity is 76%.
The average wind speed is 12 kph (8 kph).

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In July, the coldest month of the year, the average temperature in Asuncion 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, in July 2017, it dropped to -1 °C (30.2 °F).
On the warmest days of the month, the temperature usually reaches around 32 °C (89.5 °F). However, in July 2003, it reached 34.7 °C (94.5 °F).
Precipitation amounts to 40 mm (1.6 in), distributed over 4 days.
On average, there are 195 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 69%.
The average wind speed is 14 kph (8 kph).

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In August, the average temperature in Asuncion 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, in August 1993, it dropped to 0 °C (32 °F).
On the warmest days of the month, the temperature usually reaches around 35.5 °C (96 °F). However, in August 2020, it reached 40 °C (104 °F).
Precipitation amounts to 75 mm (3 in), distributed over 5 days.
On average, there are 225 hours of sunshine per month, i.e. 7 hours per day.
The average humidity is 62%.
The average wind speed is 15 kph (9 kph).

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In September, the average temperature in Asuncion 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 of the month, the temperature usually drops to around 7 °C (44.5 °F). However, in September 2002, it dropped to 2.6 °C (36.7 °F).
On the warmest days of the month, the temperature usually reaches around 37.5 °C (99 °F). However, in September 2020, it reached 42.2 °C (108 °F).
Precipitation amounts to 90 mm (3.5 in), distributed over 6 days.
On average, there are 205 hours of sunshine per month, i.e. 7 hours per day.
The average humidity is 61%.
The average wind speed is 15 kph (9 kph).

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In October, the average temperature in Asuncion 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 of the month, the temperature usually drops to around 12 °C (54 °F). However, in October 1995, it dropped to 7.6 °C (45.7 °F).
On the warmest days of the month, the temperature usually reaches around 38 °C (100 °F). However, in October 2020, it reached 42.8 °C (109 °F).
Precipitation amounts to 130 mm (5.1 in), distributed over 8 days.
On average, there are 240 hours of sunshine per month, i.e. 8 hours per day.
The average humidity is 66%.
The average wind speed is 15 kph (9 kph).

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In November, the average temperature in Asuncion 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 of the month, the temperature usually drops to around 13.5 °C (56.5 °F). However, in November 1992, it dropped to 9 °C (48.2 °F).
On the warmest days of the month, the temperature usually reaches around 37.5 °C (99.5 °F). However, in November 2019, it reached 41 °C (105.8 °F).
Precipitation amounts to 165 mm (6.5 in), distributed over 8 days.
On average, there are 270 hours of sunshine per month, i.e. 9 hours per day.
The average humidity is 65%.
The average wind speed is 13 kph (8 kph).

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In December, the average temperature in Asuncion 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, in December 2010, it dropped to 10 °C (50 °F).
On the warmest days of the month, the temperature usually reaches around 37.5 °C (99.5 °F). However, in December 2008, it reached 40.6 °C (105.1 °F).
Precipitation amounts to 150 mm (5.9 in), distributed over 8 days.
On average, there are 295 hours of sunshine per month, i.e. 9.5 hours per day.
The average humidity is 68%.
The average wind speed is 12 kph (7 kph).