Last updated: April 17, 2025
Asunción, Paraguay, exhibits a Cfa climate classification, characterized by a humid subtropical environment. The city experiences a minimum temperature that can drop to 0°C (32°F) during the chilly month of July, while the average annual temperature hovers around a warm 23°C (74°F). In contrast, the peak heat can be quite intense, with maximum temperatures soaring to 43°C (110°F) in October. This variation highlights the distinct seasonal shifts in temperature experienced in Asunción, framing it as a region with both stark winter coolness and sweltering summer heat.
Asunción, Paraguay, experiences a pronounced seasonal temperature pattern characterized by hot summers and cooler winters. The summer months of January to March see minimum temperatures ranging from 15°C (60°F) to 13°C (56°F) and average highs soaring to 41°C (107°F), reflecting a peak of heat. As the seasons transition into April and May, temperatures begin to cool, with averages falling to around 20°C (68°F) and maximums decreasing to the mid-30s Celsius. The winter months of June and July are notably cooler, with lows dropping to as low as 0°C (32°F) and averaging around 17°C (64°F). However, by August, temperatures gradually start to rise again, culminating in warm spring months of September to November, where the city can again reach highs near 41°C (107°F). This fluctuation marks Asunción's climate as dynamic, with a distinctive range from brisk winters to sweltering summers.
Asuncion experiences a significant temperature range throughout the year, with minimum temperatures dropping to 0°C (32°F) in July and peaking at a sweltering 43°C (110°F) in October. For more detailed monthly temperature information, you can visit monthly temperatures in Asuncion.
Asunción, Paraguay, showcases a distinct precipitation pattern throughout the year, with notable rainfall concentrated in the warmer months. January typically experiences the highest rainfall at 132 mm (5.2 in), occurring over an average of 13 days, followed closely by October with an even more substantial 180 mm (7.1 in). The wet season, generally spanning from October to January, includes consistent precipitation, with November also receiving a significant 165 mm (6.5 in), making it a crucial period for water supply in the region.
In contrast, the cooler months register markedly less rainfall, particularly from June to August, where totals drop to a low of 43 mm (1.7 in) in July, spread over just 6 days. This trend of reduced precipitation continues into September, with 71 mm (2.8 in) over 6 days, suggesting a dry spell that prepares the city for the wetter months ahead. Overall, Asunción's precipitation patterns reveal a pronounced seasonal cycle, reflecting the interplay between temperature and humidity typical of its humid subtropical climate.
Asunción, Paraguay experiences a significant variation in humidity throughout the year, creating a unique climate that influences daily life. The year kicks off with high humidity levels of around 80% in January, gradually decreasing to 74% in February and 75% in March. By April and May, humidity returns to 80%, setting a warm, sticky tone for the early winter months. June and July bring a notable dip, with humidity dropping to 67% and 61%, respectively, ensuring a more comfortable atmosphere. However, the shift towards spring sees an increase again, as August plummets to a crisp 40%, before gradually rising through September and October. Finally, the year culminates in a steamy December, shooting back up to 82%, illustrating the intense tropical nature of Asunción's climate that alternates between humid and drier spells throughout the year.
Asunción, Paraguay, experiences a notable variation in sunshine duration throughout the year, with a clear trend towards increased sunlight as the seasons transition from winter to summer. The beginning of the year, particularly January and February, boasts impressive sunshine totals, with 274 and 305 hours, respectively. This upward trajectory continues into March, where sunshine peaks at 306 hours, showcasing a vibrant summer climate that plays a significant role in the city’s warm weather and outdoor activities. As the year progresses into the later months, November emerges as an exceptional period for sunlight, accumulating an impressive 316 hours, while December takes the crown with a remarkable 363 hours of sunshine, making it one of the sunniest months of the year.
In contrast, the winter months, particularly June and July, experience a decline in sunshine duration, with total hours falling to a low of 226 hours in June. Although sunshine hours gradually recover in August and September, peaking again in October at 289 hours, it remains clear that the summer months command the most sunlight. Despite some variability, the overall trend illustrates a transition from shorter, cooler days to longer, sun-filled days as Asunción favors warmth and brightness through the steamy summer season. This dynamic cycle not only influences the city's climate but also impacts social activities and agricultural practices in the region.
The UV Index in Asunción, Paraguay, presents a striking seasonal pattern that underscores the intensity of sunlight throughout the year. During the peak summer months—January to March—the UV Index reaches extreme levels, peaking at a staggering 15 in January. This high level of UV radiation corresponds to a burn time of just 10 minutes, accentuating the need for effective sun protection during this critical period. As the weather transitions into cooler months, the UV Index gradually declines, dropping to 10 in April and then further to 7 in May, indicating a shift towards high but more manageable exposure levels.
As winter approaches, from June to September, the UV Index remains moderate to high, with values fluctuating between 5 and 10. Notably, June sees a reduction to 5, which allows for more extended sun exposure of up to 30 minutes without significant risk of burning. The UV Index takes another upturn in August and September, climbing back to levels classified as very high, which necessitates caution for outdoor activities. As spring arrives, the UV Index spikes again, with October and November both reaching 14 before culminating in December, where it again hits 15, reinforcing the importance of sun safety measures throughout the year, particularly during the summer months.
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Asunción, Paraguay, experiences a notable variation in daylight duration throughout the year, significantly influenced by its subtropical climate. In the height of summer, January enjoys approximately 13 hours of daylight, providing ample time for outdoor activities and promoting a vibrant atmosphere. As the summer gradually transitions into autumn, daylight remains consistent at 12 hours during February and March, before tapering off to 11 hours in April. This gradual decrease marks the onset of cooler weather as the days start to shorten.
As May ushers in winter, daylight diminishes to 10 hours, a duration that remains steady through June and July. However, as early spring approaches in August, daylight begins to lengthen again, reaching 11 hours. This upward trend continues through the fall months, peaking back at 12 hours in October and then reverting to 13 hours in November and December. This cyclical pattern highlights Asunción's climatic rhythm, showcasing a perfect balance of daylight that varies seasonally, allowing residents and visitors alike to anticipate and adapt to the changing lengths of day and the resultant impact on lifestyle and activities.
Asuncion, Paraguay experiences a humid subtropical climate characterized by hot summers and mild winters. January and February see maximum temperatures reaching up to 41°C (107°F) with significant rainfall, averaging 132 mm and 95 mm respectively, while December records the highest sunshine at 363 hours. The cooler months, from June to August, have milder temperatures between 0°C (32°F) and 18°C (65°F) and lower precipitation, averaging around 40-68 mm. The transition months of spring and autumn witness variations in temperature, with October being the wettest month at 180 mm. For more details, visit Asuncion climate.
In conclusion, the climate of Asunción, Paraguay, is marked by significant seasonal variations, encompassing temperature, precipitation, sunshine duration, UV Index, and daylight hours. The city experiences a humid subtropical climate that features hot summers with extreme UV exposure and ample daylight, allowing for vibrant outdoor experiences. Conversely, the winter months introduce cooler temperatures and reduced sunlight, highlighting a balance that characterizes the year-round climate. Understanding these patterns is not only essential for residents and tourists alike in planning their activities but also underscores the importance of practicing sun safety during peak UV months. Overall, Asunción’s dynamic climate offers a unique backdrop that reflects the broader environmental trends of the region.