, 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).
. Here are the average temperatures.
January, the hottest month of the year, is generally a very hot month. The average temperature is of
28.8 °C, with a minimum of
22.9 °C and a maximum of
34.8 °C.
On the coldest nights of the month, the temperature usually drops to around
18 °C. However, it dropped to
13.2 °C in January 1992.
On the warmest days of the month, the temperature usually reaches around
38 °C. However, it reached
40.8 °C in January 2013.
Precipitation amounts to
145 mm, 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 of
11.4 kph.
February is generally a very hot month. The average temperature is of
28.1 °C, with a minimum of
22.3 °C and a maximum of
33.8 °C.
On the coldest nights of the month, the temperature usually drops to around
17 °C. However, it dropped to
12.4 °C in February 1991.
On the warmest days of the month, the temperature usually reaches around
38 °C. However, it reached
40.8 °C in February 2010.
Precipitation amounts to
130 mm, 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 of
11 kph.
March is generally a warm to hot, muggy month. The average temperature is of
26.9 °C, with a minimum of
21.2 °C and a maximum of
32.7 °C.
On the coldest nights of the month, the temperature usually drops to around
15.5 °C. However, it dropped to
9 °C in March 2012.
On the warmest days of the month, the temperature usually reaches around
37 °C. However, it reached
40.6 °C in March 2004.
Precipitation amounts to
120 mm, 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 of
10.1 kph.
April is generally a warm to hot, muggy month. The average temperature is of
24.4 °C, with a minimum of
18.7 °C and a maximum of
30.2 °C.
On the coldest nights of the month, the temperature usually drops to around
11 °C. However, it dropped to
6.5 °C in April 1999.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
40 °C in April 1993.
Precipitation amounts to
165 mm, 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 of
10.7 kph.
May is generally a warm month. The average temperature is of
20.5 °C, with a minimum of
15.2 °C and a maximum of
25.8 °C.
On the coldest nights of the month, the temperature usually drops to around
7 °C. However, it dropped to
2.6 °C in May 2008.
On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
36 °C in May 2020.
Precipitation amounts to
115 mm, 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 of
11.2 kph.
June is generally a warm month. The average temperature is of
19.3 °C, with a minimum of
14 °C and a maximum of
24.6 °C.
On the coldest nights of the month, the temperature usually drops to around
4.5 °C. However, it dropped to
-1.2 °C in June 2011.
On the warmest days of the month, the temperature usually reaches around
30.5 °C. However, it reached
33.5 °C in June 2003.
Precipitation amounts to
80 mm, 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 of
12.5 kph.
July, the coldest month of the year, is generally a warm month. The average temperature is of
18.7 °C, with a minimum of
12.7 °C and a maximum of
24.8 °C.
On the coldest nights of the month, the temperature usually drops to around
2.5 °C. However, it dropped to
-1 °C in July 2017.
On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
34.7 °C in July 2003.
Precipitation amounts to
40 mm, 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 of
13.5 kph.
August is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
20.9 °C, with a minimum of
14.3 °C and a maximum of
27.5 °C.
On the coldest nights of the month, the temperature usually drops to around
4.5 °C. However, it dropped to
0 °C in August 1993.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
40 °C in August 2020.
Precipitation amounts to
75 mm, 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 of
14.7 kph.
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, with a minimum of
16.2 °C and a maximum of
29.3 °C.
On the coldest nights of the month, the temperature usually drops to around
7 °C. However, it dropped to
2.6 °C in September 2002.
On the warmest days of the month, the temperature usually reaches around
37.5 °C. However, it reached
42.2 °C in September 2020.
Precipitation amounts to
90 mm, 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 of
14.9 kph.
October is generally a warm to hot month. The average temperature is of
25.3 °C, with a minimum of
19.2 °C and a maximum of
31.4 °C.
On the coldest nights of the month, the temperature usually drops to around
12 °C. However, it dropped to
7.6 °C in October 1995.
On the warmest days of the month, the temperature usually reaches around
38 °C. However, it reached
42.8 °C in October 2020.
Precipitation amounts to
130 mm, 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 of
14.8 kph.
November is generally a warm to hot month. The average temperature is of
26.1 °C, with a minimum of
20 °C and a maximum of
32.2 °C.
On the coldest nights of the month, the temperature usually drops to around
13.5 °C. However, it dropped to
9 °C in November 1992.
On the warmest days of the month, the temperature usually reaches around
37.5 °C. However, it reached
41 °C in November 2019.
Precipitation amounts to
165 mm, 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 of
13.1 kph.
December is generally a very hot month. The average temperature is of
27.8 °C, with a minimum of
21.9 °C and a maximum of
33.7 °C.
On the coldest nights of the month, the temperature usually drops to around
16 °C. However, it dropped to
10 °C in December 2010.
On the warmest days of the month, the temperature usually reaches around
37.5 °C. However, it reached
40.6 °C in December 2008.
Precipitation amounts to
150 mm, 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 of
12 kph.