Last updated: August 21, 2025
In May, São Miguel do Iguaçu, Brazil experiences vibrant weather marked by a maximum temperature reaching up to 32°C (91°F) and a comfortable average of 20°C (68°F). As the region transitions into late autumn, nighttime temperatures can dip to a minimum of 7°C (45°F), creating a delightful contrast. With precipitation measuring 134 mm (5.3 in) over approximately 10 days, the lush surroundings come alive, although travelers should be prepared for occasional rain. The humidity level remains around 75%, adding a tropical feel to the crisp air, making it an ideal time for exploring the natural beauty and cultural richness of the region.
In May, São Miguel do Iguaçu experiences a notable transition in temperatures, making it a refreshing time to visit. With a minimum of 7°C (45°F) and an average of 20°C (68°F), the month marks a dip from the warmer summer averages, yet still offers a pleasant climate. While daytime highs can reach up to 32°C (91°F), the evenings become cooler, inviting cozy gatherings after a day of exploration. This shift from the intense heat of earlier months like January, where temperatures soared to 39°C (102°F), reinforces the mildness of May, providing an ideal backdrop for enjoying the breathtaking natural wonders and vibrant culture of the region.
In May, São Miguel do Iguaçu experiences a notable uptick in precipitation, with 134 mm (5.3 in) of rainfall spread over 10 rainy days. This amount is a continuation of a trend observed from the previous months, as May's rainfall is slightly higher than April's 83 mm (3.3 in), aligning closely with the totals in January and June, both averaging 142 mm (5.6 in). This pattern suggests that the region is transitioning into a wetter season, setting the stage for the more intense rainfall typically seen in the months of October and November. As the year progresses, it becomes evident that May serves as a pivotal month in the precipitation dynamics of São Miguel do Iguaçu, bridging the drier early months with the wetter latter half of the year.
In May, humidity in São Miguel do Iguaçu, Brazil, hovers around 75%, marking a slight increase compared to the previous months, which generally show a steady decline from the highs of early year. After the peak humidity of 82% in January and the gradual reduction throughout the following months, May registers a comfortable balance. This level of humidity paves the way for pleasant weather, perfectly suited for exploring the breathtaking natural beauty and vibrant culture of the region. As the year progresses towards the cooler, drier months of late winter and early spring, the humidity will continue to drop, reaching a low of 49% in August, creating a dynamic climate that shifts appealingly throughout the seasons.
In May, Sao Miguel do Iguacu experiences a notable drop in the UV Index, measuring at 7, which classifies the exposure category as high. This allows for a more manageable burn time of 25 minutes, compared to earlier months where extreme levels were the norm. While January and February hit the charts with an extreme UV Index of 15, a shift occurs in the latter months as the index gradually decreases, culminating in May's more moderate level. This trend continues into June and July, where the UV levels remain consistently high but more tolerable. If you're planning outdoor activities, understanding the changing UV index is crucial for sun safety. To explore more about the UV levels throughout the year, check out Sao Miguel do Iguacu UV Index.
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May in São Miguel do Iguaçu experiences a delightful average of 254 hours of sunshine, showcasing a steady transition from the vibrant light of previous months. Although this month sees fewer sun-drenched hours compared to the peaks of November (320 hours) and December (346 hours), it still captures the essence of autumn with a comfortable warmth. As the year unfolds, sunshine gradually decreases from the summer heights of January and February (253 and 311 hours, respectively), hinting at the cooler months ahead. This gentle decline in daylight hours makes May a charming choice for visitors seeking to enjoy the lush landscapes and the natural beauty that São Miguel do Iguaçu has to offer.
May in Sao Miguel do Iguacu welcomes an average of 64% chance of sunny weather, marking it as a delightful time for outdoor activities and exploration. This slightly above-average probability follows a series of months displaying varied sunshine, notably peaking in February with a remarkable 67% chance and maintaining a strong showing in April. The trend indicates that while winter months like June see a drop to 47%, the sun tends to shine a bit more consistently in late spring, making May a fantastic choice for those seeking the warmth and beauty of the Brazilian climate. With just a few clouds to contend with, May promises plenty of opportunities to bask in the sun.
As the seasons change in São Miguel do Iguaçu, the duration of daylight follows a cyclical pattern that reflects the shifting climate. January begins the year with an impressive 13 hours of daylight, gradually tapering down to 10 hours by May, marking the start of winter in the Southern Hemisphere. This decrease continues through June, July, and August, where daylight levels stabilize at 10 hours. However, as spring approaches in September, daylight perks up once again to 11 hours, and by October, it returns to 12 hours. The trend takes a full circle by November, with daylight extending back to 13 hours, restoring that initial summer brightness as the year draws to a close. This rhythm not only shapes daily life but also highlights the region's vibrant seasonal transitions.
In May, Sao Miguel do Iguacu experiences a gentle breeze, with an average wind speed of 2.6 m/s (6 mph), consistent with the calmness of the preceding months. This slight uptick in wind speed is indicative of a seasonal trend, as the area begins to transition from the lighter winds of early summer to slightly more invigorating breezes heading into winter. Interestingly, June and July see a gradual increase in wind speed, peaking at 2.9 m/s (6 mph), suggesting a subtle shift in the regional weather patterns. Overall, May maintains a pleasantly mild atmosphere, making it an ideal time for outdoor exploration as the moderate winds add to the charm of Sao Miguel do Iguacu's natural beauty.
Weather in Sao Miguel do Iguacu varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Sao Miguel do Iguacu, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January in Sao Miguel do Iguacu present contrasting weather patterns. In May, temperatures range from a minimum of 7°C (45°F) to a maximum of 32°C (91°F), with an average of 20°C (68°F). This month experiences 134 mm (5.3 in) of precipitation over about 10 days and a humidity level of 75%. In contrast, January is significantly warmer, with minimum temperatures around 17°C (62°F) and maximums soaring to 39°C (102°F), averaging 26°C (80°F). January also has higher precipitation at 142 mm (5.6 in) across 16 days and a slightly higher humidity of 82%. For more detailed insights on January weather, check out Sao Miguel do Iguacu weather in January.
When comparing the weather of May and February, a few key differences stand out. In February, temperatures range from a minimum of 15°C (59°F) to a maximum of 37°C (99°F), with an average of 26°C (79°F), making it generally hotter than May, where temperatures vary from 7°C (45°F) to 32°C (91°F) with an average of 20°C (68°F). Precipitation in February is slightly lower at 99 mm (3.9 in) over 9 days, compared to May's 134 mm (5.3 in) over 10 days. Additionally, February experiences a higher humidity level at 79%, while May has humidity at 75%. For more detailed information, you can check Sao Miguel do Iguacu weather in February.
In comparing the weather of May and March, March tends to be warmer overall, with average temperatures reaching up to 25°C (78°F) and maximums hitting 36°C (96°F). In contrast, May has a cooler average of 20°C (68°F) and a maximum of 32°C (91°F). While both months feature similar humidity levels at 75%, March has slightly more precipitation (109 mm) over 11 days, compared to May's 134 mm across 10 days. For more details on March weather, you can visit Sao Miguel do Iguacu weather in March.
When comparing the weather in April and May, April tends to be slightly warmer with an average temperature of 23°C (73°F), peaking at 34°C (94°F) compared to May's average of 20°C (68°F) and maximum of 32°C (91°F). Despite April's warmer temperatures, it experiences less precipitation, totaling 83 mm (3.3 in) over six days, while May has a higher rainfall of 134 mm (5.3 in) over ten days. Humidity levels are fairly similar, at 74% in April and 75% in May, contributing to a generally muggy atmosphere during both months. For more detailed insights into the April climate, you can visit Sao Miguel do Iguacu weather in April.
May and June in São Miguel do Iguaçu present some intriguing weather contrasts. In May, temperatures range from a mild 7°C (45°F) at night to a warm 32°C (91°F) during the day, averaging around 20°C (68°F). This month receives about 134 mm (5.3 in) of precipitation over roughly 10 days, with humidity levels around 75%. In contrast, June sees slightly lower temperatures, with a minimum of 2°C (37°F), an average of 18°C (65°F), and a maximum of 30°C (87°F). The rainfall increases slightly to 142 mm (5.6 in), spread over 9 days, while humidity drops to 70%. For detailed weather insights specific to June, visit Sao Miguel do Iguacu weather in June.
In comparing the weather between May and July, we see distinct differences. May experiences a wider temperature range, with minimums dropping to 7°C (45°F) and maximums reaching up to 32°C (91°F), averaging around 20°C (68°F). Precipitation is notably higher during this month, with 134 mm (5.3 in) spread over 10 days, and the humidity level sits at a relatively high 75%.
In contrast, July offers milder temperatures, where the minimum dips to 2°C (35°F) and the average is around 18°C (64°F), while the maximum temperature reaches 31°C (88°F). This month also sees significantly less rainfall, with only 37 mm (1.5 in) over just 4 days, and lower humidity at 61%. For more detailed information, check out Sao Miguel do Iguacu weather in July.
May and August exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 7°C (45°F) to a maximum of 32°C (91°F), with an average of 20°C (68°F). The month experiences higher precipitation, totaling 134 mm (5.3 in) over approximately 10 days, and a humidity level of 75% adds to the overall dampness. In contrast, August features a slightly cooler temperature range, with a minimum of 3°C (38°F) and a maximum of 34°C (94°F), while the average drops to 19°C (67°F). Precipitation is lower at 84 mm (3.3 in) during about 7 days, and the humidity decreases to 49%, creating a drier atmosphere. For further details, check the Sao Miguel do Iguacu weather in August.
In comparing the weather between May and September, May presents a more varied climate with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 32°C (91°F) and an average of 20°C (68°F). However, it also experiences significantly higher humidity at 75% and a total precipitation of 134 mm (5.3 in) over approximately 10 days. In contrast, September enjoys milder temperatures with a minimum of 10°C (50°F) and a maximum reaching 38°C (100°F), averaging 23°C (74°F). This month sees less precipitation, totaling 78 mm (3.1 in) over just 6 days, and humidity drops to a more comfortable 52%. For a detailed look at September weather patterns, you can check Sao Miguel do Iguacu weather in September.
In comparing the weather between May and October, we see some notable differences. May typically experiences a minimum temperature of 7°C (45°F) and an average of 20°C (68°F), with maximums reaching up to 32°C (91°F). During this month, there is significant rainfall, averaging 134 mm (5.3 in) over about 10 days, coupled with high humidity at 75%. In contrast, October sees higher temperatures, with a minimum of 12°C (53°F), an average of 24°C (75°F), and maximums soaring to 40°C (105°F). Precipitation increases as well, with 180 mm (7.1 in) expected over 12 days, but the humidity drops to a more comfortable 55%. For more details, you can check out Sao Miguel do Iguacu weather in October.
May and November in Sao Miguel do Iguacu showcase different yet appealing weather patterns. In May, temperatures range from a cooler minimum of 7°C (45°F) to a warm maximum of 32°C (91°F), creating a comfortable average of 20°C (68°F). However, this month sees more precipitation, totaling 134 mm (5.3 in) over about 10 days, combined with a higher humidity of 75%.
In contrast, November experiences warmer temperatures, with a minimum of 15°C (59°F) and a maximum reaching up to 36°C (97°F), yielding an average of 25°C (77°F). The rainfall in November is slightly less at 111 mm (4.4 in) over 9 days, and humidity drops slightly to 73%. For those interested in November's climatic conditions, more details can be found here: Sao Miguel do Iguacu weather in November.
May and December in Sao Miguel do Iguacu present contrasting weather patterns. May experiences a temperature range from a cool 7°C (45°F) at night to a warm 32°C (91°F) during the day, with an average temperature around 20°C (68°F). The month sees about 134 mm (5.3 in) of precipitation over 10 days, accompanied by a humidity level of 75%. In contrast, December boasts warmer temperatures, with minimums of 15°C (59°F) and daytime highs that can reach up to 37°C (99°F), averaging at 26°C (79°F). Precipitation is slightly higher at 138 mm (5.5 in), occurring over 12 days, and the humidity increases to 85%. For more detailed information on December weather, you can check Sao Miguel do Iguacu weather in December.
As May unfolds in Sao Miguel do Iguacu, the weather begins to mellow, marking a transition from the warmer months. Temperatures are pleasantly moderate, generally hovering around a comfortable average of 20°C while occasionally spiking to a balmy 32°C. This month brings a slight uptick in precipitation, with rain gracing the region on about 10 days, feeding the lush landscapes and contributing to the 75% humidity that feels vibrant yet refreshing. Compared to the heat of the summer months, May offers milder conditions, making it an ideal time for outdoor adventures amid nature's rejuvenation. For more insights into the yearly weather patterns, explore Sao Miguel do Iguacu Climate.