Last updated: August 21, 2025
Experience October in Foz do Iguaçu, Brazil, where the climate offers a dynamic mix of warmth and moisture. With maximum temperatures soaring to 40°C (103°F), the average daily warmth remains a comfortable 24°C (75°F). Nights cool down to a pleasant 12°C (53°F), making for refreshing evenings. This month witnesses 171 mm (6.7 in) of precipitation spread over 12 days, contributing to the lush surroundings. Coupled with a moderate humidity level of 55%, October in Foz do Iguaçu invites both adventure and relaxation amidst its natural wonders.
In October, Foz do Iguaçu experiences a delightful shift as temperatures begin to rise, offering a harmonious blend of warmth and comfort. With minimums around 12°C (53°F) and average highs reaching an impressive 40°C (103°F), it marks one of the warmer months of the year. Compared to the cooler temperatures of the preceding months, October showcases a noticeable trend towards summer-like conditions, making it an inviting time for outdoor adventures. Visitors can revel in the pleasant average of 24°C (75°F), perfect for exploring the breathtaking waterfalls and lush landscapes that the region is famous for. As the month progresses, the anticipation of warmer days sets the tone for a vibrant atmosphere, drawing both locals and tourists alike to enjoy the rich natural beauty of this Brazilian gem.
October in Foz do Iguaçu marks a notable increase in rainfall, with 171 mm (6.7 in) of precipitation recorded over 12 days. This spike sets October apart as one of the wetter months of the year, following the relatively drier spell in July and August when only 43 mm and 76 mm fell, respectively. As the region transitions from the dry winter months into a more humid spring, rainfall begins to pick up significantly. The trend highlights how October serves as a bridge, welcoming higher precipitation levels that hint at the upcoming summer, which often sees sustained rainfall. This pattern not only enriches the lush landscapes around the iconic Iguazu Falls but also prepares the region for the vibrant natural beauty that thrives in the subsequent humid months.
In October, Foz do Iguaçu experiences a noticeable shift in humidity, with levels hovering around 55%. This is a moderate increase compared to the dry months of July and August, which see some of the lowest humidity levels at 61% and 49% respectively. As the region transitions from the dryness of winter to the more humid conditions of late spring, October’s levels are still comfortably lower than the peak humidity of January and December, which soar to 82% and 85%. This month serves as a bridge, paving the way to the wetter summer months ahead while offering visitors a more pleasant atmosphere to explore the breathtaking natural beauty of the area.
As October rolls into Foz do Iguacu, the UV Index remains impressively high, peaking at 13, placing it squarely in the extreme exposure category. This means that sunbathers and outdoor enthusiasts should be prepared for a swift burn in just 10 minutes of unprotected exposure. Following a summer pattern, October's UV levels closely mirror those of March, highlighting a consistent trend of elevated UV radiation as the months transition into the warmer season. With November expected to maintain a similarly intense UV Index of 15, vigilance against sun damage is crucial this time of year. For more details on how to protect yourself from UV rays, check out the Foz do Iguacu UV Index.
UV Risk Categories
As autumn settles in, October brings an ample 276 hours of sunshine to Foz do Iguaçu, making it a delightful time to explore the famous waterfalls and lush landscapes. Following a warm September, which saw nearly the same amount of sun, October showcases a slight dip in hours, yet remains comfortably luminous compared to the winter months ahead. The trend is clear: Foz do Iguaçu enjoys a radiant climate as it rolls from the abundant days of summer into the golden hues of fall, setting the stage for the sunnier months of December and November that follow. This month is ideal for travelers eager to embrace the vibrant beauty of Brazil while basking in the gentle warmth of early summer's fading glory.
As October rolls in, Foz do Iguaçu experiences a notable dip in sunshine, with only a 42% chance of clear skies. This marks a contrast to the sunniest months of the year, such as December with a 75% chance and February, which boasts a 67% chance of sunlight. The month sits among the transitional period where the sunny allure of spring begins to wane, making way for the rainy season. While it's not the sunniest time of year, October still offers a fair share of pleasant days for visitors eager to explore the breathtaking beauty of this unique destination.
As October rolls into Foz do Iguaçu, residents and visitors alike can expect a pleasant 12 hours of daylight. The month stands out as a transitional phase, reflecting a gradual shift in daylight duration that mirrors the changing seasons. Following the 11 hours in September, October marks a return to the longer days seen earlier in the year, echoing the 12 hours of sunshine in February and March. This trend continues as daylight extends again in November, returning to 13 hours. Overall, October provides a comfortable balance, offering ample time to explore the stunning natural beauty of the region, while hinting at the longer days that the approaching summer will bring.
As October rolls into Foz do Iguaçu, the air is gently stirred by an average wind speed of 2.6 m/s (or 6 mph), consistent with the breezy conditions seen throughout the previous few months. This stability reflects a slight increase from the earlier spring months, where wind speeds gradually ascended from 2.2 m/s in February to a peak of 2.9 m/s in September. As autumn settles in, the winds remain comfortably mild, inviting visitors to embrace the enchanting surroundings of this stunning region. With a historical pattern demonstrating these light to moderate breezes, October provides an ideal backdrop for experiencing the natural beauty and vibrant wildlife that characterize Foz do Iguaçu.
Weather in Foz do Iguacu varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Foz do Iguacu, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between October and January, October experiences a broader temperature range, with minimums around 12°C (53°F) and maximums reaching up to 40°C (103°F). The average temperature sits at a comfortable 24°C (75°F), but with 171 mm (6.7 in) of precipitation over 12 days, it can feel quite humid at 55%. On the other hand, January tends to be warmer overall, with minimum temperatures of 16°C (62°F) and an average of 27°C (80°F), while maxing out at 39°C (102°F). Despite slightly less precipitation at 154 mm (6.1 in) across 16 days, January is notably more humid, with levels rising to 82%. For those planning to visit, you can find more details about the weather patterns in January here: Foz do Iguacu weather in January.
When comparing the weather in October and February, we see distinct differences in temperature and humidity. October boasts a minimum temperature of 12°C (53°F) and an average high of 40°C (103°F), with an average humidity of 55%. In contrast, February has a slightly higher minimum temperature of 15°C (59°F) and an average maximum of 37°C (98°F), along with increased humidity at 79%. Additionally, October experiences more precipitation at 171 mm (6.7 in) over 12 days, compared to February's 111 mm (4.4 in) spread over 11 days. For more detailed insights, you can refer to Foz do Iguacu weather in February.
In comparing the weather between October and March, we see some notable differences. October generally experiences warmer temperatures, with an average high of 40°C (103°F), compared to March's maximum of 36°C (97°F). However, March has slightly higher humidity at 75%, compared to October's 55%. Precipitation levels are also lower in March, with 121 mm (4.8 in) over 11 days, compared to October's 171 mm (6.7 in) over 12 days. For more information, you can check out Foz do Iguacu weather in March.
When comparing the weather in October to that of April, we can see some notable differences. In October, temperatures can reach a striking maximum of 40°C (103°F), while in April, the highest temperature is more moderate at 35°C (95°F). October's average temperature of 24°C (75°F) is slightly warmer than April's average of 22°C (73°F). Additionally, October experiences more rainfall, with 171 mm (6.7 in) over 12 days, compared to April's 105 mm (4.1 in) over just 6 days. Humidity levels also differ, as October has a relative humidity of 55%, while in April, it is considerably higher at 74%. For a detailed look at weather conditions specific to April, you can visit Foz do Iguacu weather in April.
When comparing the weather in October and May, we see notable differences in temperature and humidity. October typically boasts higher temperatures, with a minimum of 12°C (53°F) and an average reaching 24°C (75°F), peaking at a scorching 40°C (103°F). In contrast, May experiences cooler conditions, with temperatures ranging from a minimum of 6°C (44°F) to an average of 19°C (67°F) and a maximum of 33°C (91°F). Additionally, October has a slightly higher average precipitation of 171 mm (6.7 in) over 12 days, while May sees 149 mm (5.9 in) over 10 days, accompanied by higher humidity levels at 75%. For a more detailed look at the weather specifics in May, you can visit Foz do Iguacu weather in May.
October and June exhibit contrasting weather patterns. October features a wider temperature range, with minimums around 12°C (53°F), averages of 24°C (75°F), and maximums soaring up to 40°C (103°F). In comparison, June offers milder conditions, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 30°C (87°F) and an average of 18°C (64°F). While both months experience significant precipitation, October sees slightly higher rainfall totaling 171 mm (6.7 in) over 12 days, compared to June's 146 mm (5.7 in) over 9 days. Additionally, June has a higher humidity level at 70% versus October's 55%. For more details on June weather, you can check Foz do Iguacu weather in June.
In comparing the weather between October and July, October experiences significantly higher temperatures, with a minimum of 12°C (53°F) and a maximum soaring to 40°C (103°F), while July sees much cooler conditions, ranging from a chilly 1°C (34°F) to a warm 30°C (87°F). Additionally, October is characterized by greater precipitation, recording 171 mm (6.7 in) over 12 days, compared to July's lighter rainfall of 43 mm (1.7 in) spread across just 6 days. Interestingly, October's humidity is slightly lower at 55%, whereas July remains more humid at 61%. For more details, you can check Foz do Iguacu weather in July.
In comparing the weather of October to August, we see significant differences in temperature and precipitation. October boasts a much warmer average temperature of 24°C (75°F) with maximum highs reaching as high as 40°C (103°F), while August experiences a cooler average of 19°C (66°F) and maximum temperatures peaking at 34°C (94°F). Additionally, October is notably wetter, with 171 mm (6.7 in) of precipitation spread over 12 days, compared to August's 76 mm (3.0 in) over just 6 days. The humidity is also higher in October at 55%, versus 49% in August. For more details on August weather, you can check Foz do Iguacu weather in August.
October weather in Foz do Iguacu sees slightly warmer temperatures than September, with a minimum of 12°C (53°F) and an average high reaching 40°C (103°F). In contrast, September’s temperatures are a bit cooler, boasting a minimum of 9°C (49°F) and a maximum of 39°C (102°F). Additionally, October experiences more significant rainfall, totaling 171 mm (6.7 in) over 12 rainy days, compared to September's 78 mm (3.1 in) across just 6 days. Humidity levels also rise slightly in October to 55%, compared to 52% in September, adding to the overall warmth of the month. For more details, check out Foz do Iguacu weather in September.
In October, the weather in Foz do Iguacu is characterized by warm temperatures, with a minimum of 12°C (53°F) and an average high of 40°C (103°F). This month experiences considerable rainfall, totaling 171 mm (6.7 in) over 12 days, and humidity levels are around 55%. In contrast, November sees slightly warmer conditions, with minimum temperatures of 14°C (58°F) and an average high of 37°C (98°F), accompanied by reduced precipitation of 118 mm (4.7 in) spread over 9 days. Additionally, November is notably more humid, with levels reaching 73%. For more details, check out Foz do Iguacu weather in November.
In October, the weather features a range of temperatures with a minimum of 12°C (53°F) and an average high of 24°C (75°F), peaking at 40°C (103°F). This month experiences significant rainfall, with around 171 mm (6.7 in) over 12 days, and a comfortable humidity level of 55%. In contrast, December offers slightly warmer temperatures, with a minimum of 14°C (58°F) and an average high of 26°C (79°F), although it peaks lower at 38°C (100°F). Rainfall decreases to 155 mm (6.1 in) over 11 days, but humidity rises to a more muggy 85%. For more details, check Foz do Iguacu weather in December.
October in Foz do Iguaçu brings a delightful blend of warm temperatures and manageable humidity, setting it apart from the cooler months preceding it. With an average high of 24°C, the weather invites outdoor adventures, though occasional rain may grace the landscape, as indicated by the 12 rainy days throughout the month. Compared to the cooler winter months, October offers a refreshing change, transitioning into the warmer, wetter conditions typical of the approaching summer. For those looking to explore the stunning natural beauty of the region, understanding the October climate is essential. Dive deeper into the details to plan your perfect getaway by visiting Foz do Iguacu Climate.