Last updated: August 21, 2025
In April, Foz do Iguaçu experiences a delightful blend of weather patterns that appeal to many visitors. With maximum temperatures soaring to 35°C (95°F) and a warm average of 22°C (73°F), the days are perfect for outdoor exploration. However, early mornings and evenings can cool down to a refreshing 8°C (47°F). This month sees a precipitation total of 105 mm (4.1 in) spread over 6 days, leading to a somewhat humid environment with a relative humidity level of 74%. Travelers are advised to prepare for both bright sunny days and occasional showers, making it an ideal time to experience the natural wonders of this stunning destination.
In April, Foz do Iguaçu experiences a noticeable shift in temperatures as autumn sets in. The month greets visitors with minimums of 8°C (47°F) and averages around 22°C (73°F), providing a mild respite from the sweltering heat of summer. While the maximum temperature can still reach a warm 35°C (95°F), it's a significant drop from the peak summer highs, marking a transition to more comfortable weather. This time of year not only offers pleasant daytime temperatures but also cooler evenings, making it an ideal period for exploring the breathtaking waterfalls and lush landscapes of this stunning region. The gradual cooling trend leads into even chillier months ahead, inviting nature enthusiasts to savor the beauty of Foz do Iguaçu without the intense heat.
In April, Foz do Iguaçu experiences a moderate precipitation total of 105 mm (4.1 in), with rainfall typically occurring over just 6 days. This consistent, though relatively lower, rainfall marks a slight dip compared to the wetter months of January through March. As the area transitions into the dry season, April’s weather sets the stage for a gradual decrease in precipitation, leading into the dryer months of July and August. Despite the reduced rainfall, the lush landscape of Foz do Iguaçu remains vibrant, offering a stunning backdrop for visitors eager to explore its natural wonders.
In April, Foz do Iguaçu experiences a pleasant dip in humidity, averaging around 74%. This marks a continued decline from March's 75%, suggesting the transition into the drier months ahead. As summer recedes, the region gradually shifts towards lower humidity levels, with the previous month showing notable reductions. Following April, the humidity remains relatively stable in May before dropping significantly in the cooler months of winter, where it bottom out at 61% in July. This trend of decreasing humidity not only enhances comfort for outdoor activities but also showcases the region's shifting climate dynamics as it moves from the sweltering heat of summer towards a milder, more temperate atmosphere.
In April, Foz do Iguacu experiences a commendable drop in the UV Index to 10, categorized as very high. This provides a slightly better environment for outdoor activities compared to the earlier months, where indices soared as high as 15. With a burn time of 15 minutes, sun safety remains crucial; however, visitors can enjoy slightly extended time under the sun without immediate risk. As the UV Index trends downward from the intense peaks of summer, April brings a moment of respite while still reminding everyone to stay vigilant. For more detailed insights, check the full report on the Foz do Iguacu UV Index.
UV Risk Categories
April in Foz do Iguaçu brings a delightful 286 hours of sunshine, making it a fantastic month for outdoor adventures and breathtaking views of the iconic waterfalls. As the year progresses, it follows a pattern of fluctuating sunlight, with a notable dip in June at just 233 hours, before gradually rising again. Interestingly, April's sunshine hours are slightly lower than the vibrant glow of February and March, both boasting 310 hours, but they still provide ample opportunity to explore this stunning Brazilian destination. Looking ahead, November and December offer the promise of even more sun, peaking with 319 and 351 hours respectively, setting the stage for idyllic summer experiences. Overall, April stands out as a sweet spot in the sunlit year, bridging the gap between the lively summer months and the quieter winter ahead.
In April, Foz do Iguaçu enjoys a promising 62% chance of sunny weather, marking a delightful transition as the rainy season wanes and pleasant conditions begin to prevail. This month follows a brisk march from February, where sunny days peak at 67%, and maintains a strong outlook alongside May's 63%. Notably, April stands as a sweet spot within the annual cycle, delivering more sunshine compared to the cooler months of June and October, which dip to 46% and 42%, respectively. As spring unfolds in Brazil, visitors can expect an invigorating blend of warmth and sunshine, making it an opportune time to explore all that this breathtaking region has to offer.
In April, Foz do Iguaçu experiences a shift in daylight duration, with 11 hours of sunlight, marking a gradual decline as the region transitions from the long, sunlit days of summer. This decrease follows a pattern established in March, where daylight lasted 12 hours, and is part of a larger trend that sees daylight tapering off into the winter months. As May approaches, the daylight further drops to 10 hours, hinting at the upcoming cooler season. However, April is a beautiful time in Foz do Iguaçu, offering travelers a balance of sunlight and comfortable temperatures, perfect for exploring the breathtaking waterfalls and lush landscapes before the shorter days fully set in.
In Foz do Iguaçu, April brings a gentle breeze with an average wind speed of 2.5 m/s (6 mph), slightly higher than the preceding months of January through March. This seasonal shift hints at the transition into the cooler months ahead, with wind speeds gradually increasing towards the mid-year mark. From April onwards, a noticeable upward trend occurs, peaking in September at 2.9 m/s (6 mph). While April's winds are mild, they lay the groundwork for the invigorating breezes that follow, making it a perfect time to explore the breathtaking landscapes surrounding the iconic Iguazu Falls.
Weather in Foz do Iguacu varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Foz do Iguacu, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in April and January, distinct differences emerge. April experiences a wider temperature range, with minimums of 8°C (47°F) and maximums reaching up to 35°C (95°F), averaging around 22°C (73°F). The month sees about 105 mm (4.1 in) of precipitation over 6 days, accompanied by a humidity level of 74%. In contrast, January is warmer, with minimums of 16°C (62°F) and maximums soaring to 39°C (102°F), leading to an average temperature of 27°C (80°F). This month is also wetter, receiving around 154 mm (6.1 in) of rain over 16 days and higher humidity at 82%. For more details about January weather, visit Foz do Iguacu weather in January.
When comparing the weather in April and February, there are some notable differences. In April, temperatures range from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), while February sees milder nights with a minimum of 15°C (59°F) and hotter days peaking at 37°C (98°F). April experiences an average temperature of 22°C (73°F), compared to February's warmer average of 26°C (79°F). Precipitation is slightly less in April at 105 mm (4.1 in) over 6 days, compared to February's 111 mm (4.4 in) across 11 days. Additionally, humidity levels are higher in February at 79%, while April has a humidity of 74%. For more detailed insights, check out Foz do Iguacu weather in February.
In comparing the weather between March and April, we observe notable differences in temperature and precipitation patterns. April features a minimum temperature of 8°C (47°F) and an average of 22°C (73°F), which is cooler than March, where temperatures start at a minimum of 13°C (55°F) and average around 25°C (78°F). Additionally, although April peaks at a maximum temperature of 35°C (95°F), March reaches an even higher maximum of 36°C (97°F). Precipitation is slightly lower in April at 105 mm (4.1 in) over 6 days, compared to March's 121 mm (4.8 in) over 11 days. Both months have similar humidity levels, with April at 74% and March at 75%. For more detailed insights, you can check Foz do Iguacu weather in March.
In April, the weather typically features a warm average temperature of 22°C (73°F), with maximum highs reaching up to 35°C (95°F) and a minimum of 8°C (47°F). The month experiences about 105 mm (4.1 inches) of precipitation over 6 days, while humidity averages around 74%. In contrast, May brings slightly cooler conditions, with an average temperature of 19°C (67°F) and a maximum of 33°C (91°F), although it can dip to a minimum of 6°C (44°F). Precipitation increases to 149 mm (5.9 inches) over 10 days, accompanied by a marginal rise in humidity to 75%. For more detailed weather insights, you can check Foz do Iguacu weather in May.
April and June present contrasting weather characteristics. April boasts a wider temperature range, with minimums of 8°C and maximums reaching up to 35°C. The average temperature sits at a comfortable 22°C, accompanied by moderate rainfall of 105 mm over about 6 days, contributing to a high humidity of 74%. In contrast, June sees cooler conditions, with temperatures dropping to a minimum of 2°C and averaging 18°C, while maximums reach 30°C. Rainfall in June increases to 146 mm, occurring over 9 days, and the humidity lowers slightly to 70%. For more specific details on the weather, you can visit the following link: Foz do Iguacu weather in June.
April and July present notable differences in weather patterns. April enjoys warmer temperatures, with an average of 22°C (73°F) and maximums reaching up to 35°C (95°F), contrasted by July's cooler average of 17°C (63°F) and a maximum of 30°C (87°F). Additionally, April tends to be rainier, receiving 105 mm (4.1 in) of precipitation over six days, while July is drier, with only 43 mm (1.7 in) of rainfall, also occurring over six days. Humidity is higher in April at 74%, compared to July's 61%. For more details on July weather, you can check Foz do Iguacu weather in July.
April and August present contrasting weather conditions. In April, temperatures range from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), with an average of 22°C (73°F). The month also experiences higher humidity at 74% and more precipitation, totaling 105 mm (4.1 in) over 6 days. In contrast, August features cooler temperatures, with a minimum of 3°C (38°F), an average of 19°C (66°F), and a maximum of 34°C (94°F). The humidity drops to 49%, and there is less rainfall, amounting to 76 mm (3.0 in) also over 6 days. For more details on the weather in this month, check out Foz do Iguacu weather in August.
April and September present distinct weather patterns, with April generally being warmer overall. In April, temperatures range from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), while September sees slightly higher temperatures, with a minimum of 9°C (49°F) and a maximum of 39°C (102°F). Both months experience about six days of precipitation, but April has higher rainfall at 105 mm (4.1 in) compared to September's 78 mm (3.1 in). Additionally, humidity levels are noticeably higher in April at 74%, whereas September enjoys a more comfortable 52%. For those interested in a detailed look at September's weather, visit Foz do Iguacu weather in September.
April and October present contrasting weather patterns. In April, temperatures range from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), with an average of 22°C (73°F). The month experiences around 105 mm (4.1 in) of precipitation over 6 days and a relatively high humidity level of 74%. In contrast, October sees higher temperatures, with a minimum of 12°C (53°F) and a peak of 40°C (103°F), averaging 24°C (75°F). The month is wetter, with 171 mm (6.7 in) of rainfall spread over 12 days, but has a lower humidity level of 55%. For more details on October weather, visit Foz do Iguacu weather in October.
In comparing the weather of April and November, April features a wider temperature range, with minimums at 8°C (47°F) and maximums reaching up to 35°C (95°F). On the other hand, November offers milder minimum temperatures of 14°C (58°F) and higher average temperatures at 25°C (77°F), peaking at 37°C (98°F). Both months experience significant rainfall, with April receiving 105 mm (4.1 in) over 6 days and November slightly higher at 118 mm (4.7 in) across 9 days. Humidity levels are similar, hovering around 74% in April and slightly lower at 73% in November. For more detailed insights on November weather, you can check Foz do Iguacu weather in November.
When comparing the weather in April and December, April tends to be slightly cooler with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), averaging around 22°C (73°F). It also experiences moderate rainfall, with 105 mm (4.1 in) of precipitation over about 6 days and a humidity level of 74%. In contrast, December offers warmer temperatures, with a minimum of 14°C (58°F) and reaching up to 38°C (100°F), while averaging 26°C (79°F). The month is wetter, receiving 155 mm (6.1 in) of rainfall across 11 days and higher humidity at 85%. For detailed insights on December's weather, visit Foz do Iguacu weather in December.
As April rolls into Foz do Iguacu, the weather shifts from the intense heat of summer to a more temperate climate, making it an ideal time for exploration. With temperatures ranging from cooler nights to pleasantly warm days, visitors can enjoy the vibrant natural beauty without the sweltering heat. While April does bring some rainfall, with about six days of precipitation, the humidity remains manageable, ensuring a comfortable experience. This transitional month stands out for its moderate climate compared to the preceding summer months, inviting travelers to enjoy outdoor adventures with a refreshing backdrop. For a deeper insight into the region's weather patterns throughout the year, check out Foz do Iguacu Climate.