Last updated: August 21, 2025
August in Puerto Iguazu, Argentina offers a fascinating climatic experience, where temperatures can soar to a sweltering 34°C (94°F) while averaging a comfortable 19°C (66°F). Visitors should be prepared for occasional cooler moments, with lows dipping to 3°C (38°F). The month sees 76 mm (3.0 in) of rainfall spread across about 6 rainy days, ensuring the region's lush landscapes remain vibrant. With humidity levels hovering around 49%, the weather is generally pleasant, making August an ideal time to explore the breathtaking natural beauty of this enchanting destination.
In August, Puerto Iguazu experiences a noticeable shift in temperatures as winter transitions into early spring, with the minimum dropping to a cool 3°C (38°F), while the average hovers around a mild 19°C (66°F). The maximum temperature reaches a comfortable 34°C (94°F), striking a balance that invites outdoor exploration without the sweltering heat of summer. This month marks a gradual warming trend, reflecting the impending warmth of spring with the scenery lush and vibrant, making it an ideal time for visitors to experience the breathtaking beauty of the Iguazu Falls and the surrounding rainforest.
In August, Puerto Iguazu receives an average precipitation of 76 mm (3.0 in) over six days, marking a slight increase from the dry spells of July, yet still lower than the wetter months that follow. This transitional month typically witnesses a shift in weather patterns, paving the way for the heavier rains of spring. While August's rainfall is more modest when compared to the peaks in January and October, it sets the stage for the refreshing changes ahead. The region's vibrant ecosystem begins to respond to the earlier moisture, hinting at the lush landscapes that will soon flourish as humidity and rain continue to rise in the coming months.
In August, Puerto Iguazu experiences a noticeable shift in humidity, with levels dropping to a comfortable 49%. This is part of an overall trend of decreasing humidity that begins in July, where the air feels considerably drier compared to the sweltering summer months. As the year progresses into the spring, the humidity gradually rises again, reaching 52% in September, but August stands out as a particularly refreshing time to visit. This lower humidity enhances the region's natural beauty, making it an ideal moment for exploring the breathtaking Iguazu Falls and surrounding lush landscapes without the oppressive stickiness that characterizes the hotter months.
In August, Puerto Iguazu experiences a UV Index of 8, categorized as very high, which means sun protection is still essential as the risk of harm from unprotected sun exposure rises significantly. This index marks a slight increase from the previous month's moderate rating, suggesting that while the intensity of UV rays fluctuates seasonally, the region's residents and visitors must remain vigilant throughout the year. With a recommended burn time of just 15 minutes, it's clear that even during the tail end of winter, the sun can pack a punch. As we head into September, the UV Index will maintain its heightened levels, underscoring the importance of sun safety. For more detailed insights about UV exposures throughout the year, visit Puerto Iguazu UV Index.
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In August, Puerto Iguazu basks in 279 hours of bright sunshine, marking a pleasant transition as winter gives way to the warmer months ahead. This period is characterized by a mild climate, where daylight hours slightly exceed those of the preceding winter months, such as June and July, which recorded lower totals of 233 and 277 hours respectively. The months leading up to August generally showcase a gradual increase in sunshine, peaking with 319 hours in November and culminating in a splendid 351 hours come December. This consistent rise not only highlights the region's appeal for outdoor adventurers but also sets the stage for vibrant natural beauty, making August a delightful time to experience the lush landscapes and enchanting waterfalls that define Puerto Iguazu.
In August, Puerto Iguazu experiences a promising likelihood of sunny weather, with a 62% chance of sunshine. This figure is consistent with the highs seen in February and July, showcasing a trend of increased brightness during the winter months. While the sun shines less frequently than in the peak of summer, the likelihood remains robust compared to the cooler transitional months of March and April. As the region begins to transition toward spring, August offers visitors a delightful balance of warmth and sunshine, making it an ideal time to explore the breathtaking beauty of the Iguazu Falls.
In August, Puerto Iguazu experiences a resurgence in daylight, with approximately 11 hours of natural light gracing the picturesque landscape. This marks a subtle transition from the deeper winter months of June and July, where daylight was consistent at 10 hours. As the region inches closer to spring, August serves as a gentle reminder of the longer days to come, setting the stage for even greater daylight in September and October. Overall, this trend reflects a gradual warming and lengthening of days as the year progresses, inviting both locals and travelers alike to bask in the stunning natural beauty that the area has to offer.
In August, Puerto Iguazu experiences a gentle uptick in average wind speed, reaching 2.8 m/s (6 mph), the highest for the year since July. This slight increase marks a transition into the spring months, creating a refreshing outdoor atmosphere ideal for exploring the region's stunning landscapes, particularly the magnificent Iguazu Falls. Following August, the wind continues to strengthen into September at 2.9 m/s (6 mph), suggesting a seasonal shift that enhances the invigorating breezes felt throughout the area. As we move towards the end of the year, wind speeds remain relatively stable, hovering around 2.4 to 2.6 m/s (5-6 mph) from October to December, providing a consistent backdrop for both locals and visitors alike to enjoy the lush beauty of this remarkable destination.
Weather in Puerto Iguazu varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Puerto Iguazu, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present strikingly different weather patterns. In August, temperatures range from a minimum of 3°C (38°F) to a maximum of 34°C (94°F), with an average of 19°C (66°F). The month typically experiences 76 mm (3.0 in) of precipitation over about 6 days, coupled with a relatively low humidity level of 49%. In contrast, January is significantly warmer, with minimum temperatures of 16°C (62°F) and maximums reaching up to 39°C (102°F), averaging 27°C (80°F). This month sees much higher rainfall at 154 mm (6.1 in), spread over approximately 16 days, and a high humidity level of 82%. For more details, you can check Puerto Iguazu weather in January.
When comparing the weather in August and February, notable differences emerge in temperature and humidity levels. In August, temperatures range from a minimum of 3°C (38°F) to a maximum of 34°C (94°F), with an average of 19°C (66°F). The month experiences approximately 76 mm (3.0 in) of precipitation over six days and a humidity level of 49%. In contrast, February features milder temperatures, with a minimum of 15°C (59°F) and a maximum reaching 37°C (98°F), averaging 26°C (79°F). Precipitation is higher in February at 111 mm (4.4 in), occurring over eleven days, and humidity also escalates to 79%. These differences highlight February as a warmer and more humid month compared to the cooler and drier conditions of August. For more detailed insights, refer to Puerto Iguazu weather in February.
When comparing the weather in August and March, significant differences emerge. August tends to be cooler, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 34°C (94°F) and an average of 19°C (66°F). In contrast, March experiences warmer temperatures, with a minimum of 13°C (55°F), an average of 25°C (78°F), and a maximum reaching up to 36°C (97°F). Additionally, March sees more precipitation at 121 mm (4.8 in) over 11 days, compared to August's 76 mm (3.0 in) over just 6 days, and higher humidity levels at 75% versus August’s 49%. For a detailed look at March weather specifically, check out Puerto Iguazu weather in March.
When comparing the weather in August and April, we see notable differences in temperature and humidity. August has a wider temperature range, with minimums dipping to 3°C (38°F) and maximums reaching 34°C (94°F), resulting in an average of 19°C (66°F). In contrast, April offers warmer conditions, featuring a minimum of 8°C (47°F) and an average temperature of 22°C (73°F), with maximum highs slightly higher at 35°C (95°F). Although both months experience six days of precipitation, April sees a higher total of 105 mm (4.1 in) compared to August's 76 mm (3.0 in). Additionally, April's humidity averages 74%, significantly higher than August's 49%, making for a more humid and potentially muggy feel during that month. For more details, you can check Puerto Iguazu weather in April.
When comparing the weather in August and May, we see distinct differences. August has a broader temperature range, with minimums around 3°C (38°F) and maximums reaching 34°C (94°F), while May's temperatures are slightly warmer, starting at a minimum of 6°C (44°F) and peaking at 33°C (91°F). Both months offer average temperatures of around 19°C (66°F) to 19°C (67°F), indicating mild overall conditions. However, precipitation is noticeably higher in May, with 149 mm (5.9 in) across about 10 days, compared to August's 76 mm (3.0 in) over just 6 days. The humidity in May also tends to be higher at 75%, versus August’s 49%. For more detailed insights on May weather, you can check Puerto Iguazu weather in May.
When comparing the weather in August with that of June, we see notable differences. August typically has warmer temperatures, with a minimum of 3°C (38°F), an average of 19°C (66°F), and a maximum reaching 34°C (94°F). In contrast, June features a slightly cooler range, with minimum temperatures around 2°C (36°F), an average of 18°C (64°F), and a maximum of 30°C (87°F). Precipitation also varies significantly; August receives 76 mm (3.0 in) of rain over 6 days, whereas June is wetter, accumulating 146 mm (5.7 in) over 9 days. Additionally, humidity levels are higher in June at 70%, compared to August's 49%. For more information, you can check Puerto Iguazu weather in June.
In comparing the weather between July and August, August tends to be warmer overall, with average temperatures rising from 17°C (63°F) in July to 19°C (66°F) in August. August also sees higher maximum temperatures, peaking at 34°C (94°F) compared to July's maximum of 30°C (87°F). Precipitation increases from 43 mm (1.7 in) in July to 76 mm (3.0 in) in August, while the number of rainy days remains consistent at six. Additionally, humidity is slightly lower in August at 49%, compared to 61% in July, suggesting that while August is warmer, it may also feel less sticky. For more details on July weather, check out Puerto Iguazu weather in July.
August and September present a noticeable shift in weather patterns. In August, temperatures range from a minimum of 3°C (38°F) to a maximum of 34°C (94°F), with an average of 19°C (66°F). The month experiences 76 mm (3.0 in) of precipitation over six days, accompanied by a humidity level of 49%. In contrast, September sees warmer temperatures, with a minimum of 9°C (49°F) and a striking maximum of 39°C (102°F), leading to an average of 23°C (74°F). Precipitation increases slightly to 78 mm (3.1 in), still spread over six days, while humidity also rises marginally to 52%. For a more detailed look at conditions, visit Puerto Iguazu weather in September.
In August, the weather typically features a cooler range of temperatures, with a minimum of 3°C (38°F), an average of 19°C (66°F), and a maximum of 34°C (94°F). During this month, precipitation is moderate at 76 mm (3.0 in), occurring over about 6 days, and humidity levels sit at 49%. In contrast, October brings a warmer and more humid atmosphere, characterized by a minimum temperature of 12°C (53°F), an average of 24°C (75°F), and a peak of 40°C (103°F). Rainfall increases significantly to 171 mm (6.7 in) over 12 days, with humidity rising to 55%. For more details and specific information about October's climate, you can check Puerto Iguazu weather in October.
In August, the weather is generally cooler, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 34°C (94°F) and an average of 19°C (66°F). This month sees relatively moderate precipitation of 76 mm (3.0 in) over about 6 days, alongside a humidity level of 49%. In contrast, November experiences warmer temperatures, with a minimum of 14°C (58°F) and a peak of 37°C (98°F), leading to an average of 25°C (77°F). However, it also brings increased rainfall, totaling 118 mm (4.7 in) over 9 days, and higher humidity at 73%. For a more detailed look at weather conditions, you can check Puerto Iguazu weather in November.
August and December exhibit contrasting weather patterns. In August, temperatures range from a cool 3°C (38°F) overnight, peaking at a comfortable 34°C (94°F) during the day, with an average of 19°C (66°F). Precipitation occurs over six days, totaling 76 mm (3.0 in), and the humidity sits at a moderate 49%. In stark contrast, December brings significantly warmer temperatures, with nighttime lows of 14°C (58°F) and daytime highs reaching a scorching 38°C (100°F), averaging 26°C (79°F). The month is also wetter, with precipitation of 155 mm (6.1 in) across eleven days, resulting in higher humidity levels of 85%. For more details, you can check Puerto Iguazu weather in December.
August in Puerto Iguazu presents a unique blend of mild temperatures and relatively low humidity, making it distinct from the hotter summer months. With maximums reaching up to 34°C, the warmth is tempered by cooler mornings and evenings, dipping to 3°C at times. Rainfall is moderate, with just a handful of wet days throughout the month, contributing to a pleasant environment for exploration. Overall, August offers a refreshing escape, ideal for visitors looking to experience the stunning natural beauty of the area without the peak season crowds. For more insights on what to expect throughout the year, visit Puerto Iguazu Climate.