Weather in Asunción

Stay up to date with the latest weather conditions in Asunción. Below you will find current data, forecasts, and useful weather charts for the capital of Paraguay.

Asunción is characterized by a subtropical climate, typified by warm or hot weather throughout most of the year. Average annual temperatures make the capital of Paraguay attractive to visit in various seasons; however, it is important to consider the weather conditions specific to each period.

Two main seasons stand out quite clearly in Asunción. Summer, which lasts roughly from December to March, is the hottest time of the year. Average daytime temperatures during this period fluctuate in the 27-29°C range, and maximums can rise to 32-33°C. Summer months are also characterized by increased humidity. Winter, falling on June-August, is distinguished by milder and more comfortable weather: average temperatures are around 19-21°C, with minimum night values around 14-15°C. Spring (September-November) and autumn (April-May) are pleasant transitional periods with moderate temperatures.

Regarding precipitation, according to the provided data, it falls in Asunción throughout the year, however, the total monthly amount is small. The greatest amount of precipitation (6 mm per month) and the highest number of rainy days (up to 13 days) are characteristic of October and November. The driest months, in terms of total rainfall volume, are July (1 mm) and August (2 mm), with 5-6 rainy days counted in these months. Even in the hottest summer months, for example in January, with 12 rainy days, the total amount of precipitation is about 4 mm. This indicates that rains can be a frequent occurrence, but as a rule, they are not prolonged or too intense.

The temperature regime in Asunción demonstrates a clearly defined seasonality characteristic of a subtropical climate. The annual range of average temperatures fluctuates from 18.7°C in July to 28.7°C in January. Thus, January is the hottest month, when the average maximum temperature reaches 33.3°C, and the average minimum does not drop below 24.1°C. The coolest month is considered to be July, with an average temperature of 18.7°C, while night minimums can drop to 14.0°C, and day maximums rise to 23.5°C.

Summer months in Asunción, covering the period from December to March, are characterized by consistently hot weather. Average daily temperatures at this time hold steadily above 27°C. For example, in February the average temperature is 27.8°C, with daily peaks up to 32.7°C and night temperatures around 22.9°C. A similar picture is observed in December (average 27.5°C, max 32.5°C) and March (average 27.0°C, max 31.7°C). Nights in the summer period also remain very warm, which creates a sensation of tropical sultriness, especially taking humidity into account.

Winter in the capital of Paraguay, falling on June, July, and August, brings significant relief from the summer heat. Temperatures become much more moderate and comfortable. In June, the average temperature is 19.1°C, with daily maximums around 23.2°C and night minimums around 15.0°C. August is slightly warmer, with an average temperature of 20.6°C and a maximum daily up to 26.1°C. In general, winter in Asunción is mild, without frosts, with pleasant warm days and cool nights. Diurnal temperature fluctuations are noticeable throughout the year, averaging 8-11°C between the daily maximum and night minimum, which is especially felt in the transitional seasons and winter.

In Asunción, precipitation is distributed throughout the year, however, its intensity and frequency vary noticeably. Although the city does not have a clearly pronounced season of torrential rains, periods with higher and lower probability of precipitation can be distinguished. Overall, the monthly amount of precipitation remains moderate or even low, indicating that rains, as a rule, are not too prolonged or excessively heavy.

The wettest months, both by total volume of precipitation and by the number of rainy days, are October and November. In each of these months, an average of 6 mm of precipitation falls. At the same time, October counts the highest number of days with rain – about 13, and in November – about 10. January is also distinguished by a relatively high frequency of precipitation (about 12 rainy days), although their total amount is about 4 mm. Such a picture testifies that in these periods rains can be a frequent phenomenon, but most likely, they are short-lived or light.

The driest period in Asunción falls on the winter months. The record holder for the minimum amount of precipitation is July – only 1 mm on average per month, with about 6 rainy days counted. Slightly more precipitation falls in June and August – 2 mm each, with 7 and 5 rainy days respectively. In the remaining months of the year, the amount of precipitation usually fluctuates within 3-4 mm, and the number of days with rain varies from 7 to 10. Snow is uncharacteristic for the climate of Asunción.

When planning a trip to Asunción, it is important to consider its subtropical climate with hot summers and mild winters. Throughout the year, you will need light and breathable clothing, especially made from natural fabrics like cotton or linen. Do not forget sunscreen with high SPF, sunglasses, and a hat, as the sun here is quite active. Comfortable walking shoes are your best friend for exploring the city, as well as a light jacket or wrap in case of evening coolness, especially in the winter months.

Summer months (from December to March) in Asunción are very hot, with average maximum temperatures above 30°C, so pack the lightest summer clothes: shorts, T-shirts, sundresses. In winter (June-August), the weather is more moderate, warm during the day (about 23-26°C), but evenings and nights can be cool (down to 14-15°C). For this period, the layering principle is ideal: take T-shirts, long-sleeved shirts, light sweaters or a fleece jacket, as well as jeans or trousers. Although the total amount of precipitation in Asunción is small, rainy days happen throughout the year, especially in October and November. Therefore, a compact umbrella or a light raincoat will be very handy.

Regardless of the season, bring insect repellent, especially if you plan walks in nature or during the evening. For transitional seasons – spring (September-November) and autumn (April-May) – the layering principle is also relevant, as the weather can be changeable. Given the frequent, albeit not abundant, rains, quick-drying clothes may prove useful. And, of course, do not forget an adapter for electrical appliances if it is necessary for your equipment.