Climate and monthly weather forecast
Paraguay

Paraguay, a landlocked country located in South America, is principally split into two topographical regions: the tropical Chaco region to the west and the subtropical Paranaense region to the east. The climate of Paraguay is characterized by warm to hot temperatures throughout the year, with marked variability in rainfall patterns, leading to distinct wet and dry seasons.

In the Paranaense region, temperatures are moderate with an average of 17.9°C (64.2°F) during winter (July) and 28°C (82.4°F) in summer (January). This region experiences considerable rainfall throughout the year, averaging 1,270mm (10.63") annually. The rainfall is fairly distributed throughout the year, with March through May and October through November being the wettest periods. This region also faces occasional frost threats in winter due to cold Antarctic air masses.

On the other hand, the Chaco region has a more tropical climate with modest temperature variations and less rainfall. This region is characterized by seasons that alternately flood and parch the land, but despite the flooding, the area remains warm throughout the year. The rainfall here is between 500mm (19.69") and 1,0mm (0") per year, concentrated mainly in the summer months. In contrast to the Paranaense region, the Chaco region experiences a semi-arid climate during winters and transforms into swampy landscapes in summers.

Considering Paraguay's climate throughout the year, the best time to visit the country is from April to September. During this period, Paraguay experiences its winter and spring. The temperatures are more moderate and the weather is mostly dry, especially in the Paranaense region, making it ideal for sightseeing and outdoor activities. Also, the Chaco region is relatively drier during this period, making it easier to explore. Moreover, the risk of heavy rainfall and sweltering heat is minimal.

The worst time to visit Paraguay, especially if you're not fond of intense heat or heavy rainfall, would be the summer season from October to March. This period marks the onset of high temperatures, which can easily reach 38°C (100.4°F) in the Paranaense region. The Chaco region also experiences high temperatures, but the main discomfort comes from the alternating flooding and parching of the land due to irregular rainfall. Additionally, this season sees the greatest risk of heavy storms, particularly in the Paranaense region.

Springtime in Paraguay, from September to November, is a period of transition from the cooler temperatures of winter to the heat of summer. The weather during this period is relatively dry and the temperature gradually increases. In the Paranaense region, average temperatures range from 20°C (68°F) to 25°C (77°F), providing a comfortable climate for outdoor activities. The Chaco region remains hot but is less affected by rainfall, resulting in a semi-arid climate.

Summertime in Paraguay, from December to February, is the hottest and wettest period of the year. In the Paranaense region, temperatures can soar to 38°C (100.4°F). The region also faces heavy rainfall, which often leads to sudden and violent storms. In the Chaco region, the weather remains hot, and despite being the wettest period for this region, the rainfall is significantly less compared to the Paranaense region.

The autumn season in Paraguay, from March to May, brings a gradual decrease in temperature and rainfall. In the Paranaense region, temperatures range from 22°C (71.6°F) to 27°C (80.6°F). This period also marks one of the two annual rainfall peaks, particularly in March. However, the amount of rainfall starts decreasing towards the end of the season. In the Chaco region, the temperatures remain high, but the area starts to dry out after the summer rains.

Winter in Paraguay, from June to August, is characterized by mild temperatures and lower rainfall. In the Paranaense region, the average temperature is about 17.9°C (64.2°F) in July, the coldest month. Although occasional cold Antarctic air masses can bring subfreezing temperatures, it is a relatively rare occurrence. The Chaco region experiences mild temperatures as well, and it is the driest period for this region, transforming it into a semi-arid landscape.

January is the middle of summer in Paraguay, and it is typically the hottest month of the year. Both the Paranaense and Chaco regions experience high temperatures, but the conditions vary significantly in terms of rainfall and humidity. In the Paranaense region, which includes the capital city of Asunción, January sees the highest average temperatures of the year, approximately 28°C (82.4°F). Weather in January »

In February, Paraguay continues to experience summer with persistently high temperatures, albeit slightly lower than in January. The weather conditions during this month can be quite diverse across the two key regions: the Paranaense and the Chaco. The Paranaense region, which encompasses the capital, Asunción, witnesses a slight decrease in temperature compared to January. Weather in February »

March marks the transition from summer to autumn in Paraguay and brings about changes in the weather conditions across the Paranaense and Chaco regions. Although the temperatures remain high, they begin to decrease slightly as the month progresses. In the Paranaense region, home to the capital city of Asunción, average temperatures start to decline from the peak summer heat but still remain relatively high, generally ranging around 26°C (78.8°F). Weather in March »

April in Paraguay marks the full onset of autumn, bringing with it a considerable change in weather conditions across the country's two main regions, the Paranaense and the Chaco. In the Paranaense region, including the capital Asunción, average temperatures continue to decline from the high heat of summer, settling around 23°C (73.4°F) to 25°C (77°F). Weather in April »

May in Paraguay signifies a further progression into autumn, with noticeable changes in weather conditions across the Paranaense and the Chaco regions. In the Paranaense region, where the capital city of Asunción is located, the temperatures continue their downward trend from the highs of summer, with averages settling between 20°C (68°F) and 22°C (71.6°F). Weather in May »

June marks the arrival of winter in Paraguay, bringing further changes in the climate across the Paranaense and the Chaco regions. In the Paranaense region, including the capital Asunción, the temperature continues to drop, averaging 18°C (64.4°F) to 20°C (68°F). Weather in June »

July is typically the coldest month in Paraguay, with winter in full swing across the country. Both the Paranaense region and the Chaco region experience lower temperatures, but the amount of rainfall and overall climate conditions vary between these two regions. In the Paranaense region, which includes the capital Asunción, average temperatures drop to about 17.9°C (64.2°F) in July, making it the coldest month of the year. Weather in July »

August in Paraguay signifies the transition from winter to spring, with gradual changes in weather conditions evident across the Paranaense and the Chaco regions. In the Paranaense region, home to the capital city Asunción, average temperatures begin to rise slightly from the winter lows, with averages ranging between 18°C (64.4°F) to 21°C (69.8°F). Weather in August »

September in Paraguay marks the onset of spring, bringing about noticeable changes in weather conditions across both the Paranaense and the Chaco regions. In the Paranaense region, which includes the capital city Asunción, average temperatures continue to rise from the cooler winter months, averaging 22°C (71.6°F) to 24°C (75.2°F). Weather in September »

October in Paraguay marks a further progression into spring, with increasing temperatures and rainfall across both the Paranaense and the Chaco regions. In the Paranaense region, where the capital Asunción is located, the average temperatures rise further, ranging from 24°C (75.2°F) to 27°C (80.6°F). Weather in October »

November in Paraguay signals the transition from spring to summer, bringing about substantial changes in weather conditions across both the Paranaense and the Chaco regions. In the Paranaense region, including the capital Asunción, the average temperatures continue to rise, often ranging between 27°C (80.6°F) and 29°C (84.2°F). Weather in November »

December in Paraguay marks the onset of summer, bringing with it significant changes in weather conditions across both the Paranaense and the Chaco regions. In the Paranaense region, which includes the capital city Asunción, average temperatures peak, often reaching between 30°C (86°F) and 33°C (91.4°F). Weather in December »