Last updated: August 21, 2025
May in Guaiba, Brazil features a dynamic climate with maximum temperatures reaching 32°C (90°F) and an average of 17°C (63°F), while nights can dip to a cool 5°C (41°F). This transitional month experiences a notable precipitation total of 153 mm (6.0 in) over approximately 10 days, contributing to the region's lush scenery. With a humidity level lingering at a high 87%, residents and visitors alike can expect a mix of warm, balmy days alongside refreshing, rain-soaked moments that exemplify the beauty of autumn in Brazil.
In May, Guaiba, Brazil, transitions into cooler temperatures as autumn settles in, bringing a noticeable drop in the thermometers. The minimum temperature dips to a cool 5°C (41°F), while the average climbs to a mild 17°C (63°F), offering a refreshing contrast to the sweltering summer months. Despite the chill, daytime highs can still reach a comfortable 32°C (90°F), hinting at the lingering warmth of the season. This blend of cooler nights and pleasantly warm days makes May an ideal time to enjoy outdoor activities while savoring the beauty of Guaiba's autumn. As the month progresses, the gradual decrease in temperature foreshadows the cooler winter months ahead, making it a beautiful transition period.
In May, Guaíba experiences a notable peak in precipitation, with an impressive 153 mm (6.0 in) falling over 10 days. This heightened rainfall marks a sharp contrast to the preceding months, particularly April, which saw only 73 mm (2.9 in) across fewer days. The shift into the late fall season not only brings increased moisture but also sets the stage for the wetter months ahead, as June typically maintains substantial rainfall at 113 mm (4.4 in). Interestingly, May’s robust precipitation heralds a seasonal transition, bridging the drier spells of early year to the anticipated deluge in late winter and spring, solidifying its position as one of the wettest months in Guaíba’s annual climate cycle.
In Guaíba, Brazil, May marks a notable peak in humidity, reaching a significant 87%, the highest level in the year. This gradual rise in moisture begins from January's 77%, steadily climbing through the months. As the seasons transition, humidity increases more dramatically, particularly in the spring, with April already at 82%. Following May, humidity levels remain high but begin to taper off, settling at 85% in June, and gradually decreasing through the colder months. This trend reflects Guaíba's tropical climate, where humidity is a constant presence, peaking in the vibrant month of May, fostering lush landscapes and a rich ecosystem.
In May, Guaíba experiences a UV Index of 6, categorized as high, which allows for a safer outdoor experience with a burn time of approximately 25 minutes before skin damage can occur. This marks a notable decrease from the extreme levels seen at the beginning of the year, where January through March recorded indices above 12, and as high as 14, necessitating quick sun protection measures. As the month transitions into June, the UV Index further drops to 4, indicating a shift towards moderate exposure. This trend highlights the importance of adjusting sun safety practices as the year progresses. For detailed information on UV levels throughout the year, visit Guaiba UV Index.
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In May, Guaiba, Brazil, experiences about 230 hours of sunshine, marking a gentle dip in daylight as the region transitions into the cooler months. This decline follows a burst of brightness in the earlier months, particularly February and March when the sun shone for over 310 hours. Interestingly, May's sunshine is higher than the subsequent month, June, which sees only 220 hours. The patterns suggest that although May serves as a prelude to the winter chill, it still benefits from a fair share of light before the sun's presence becomes more fleeting in the winter months of June and July. As the year progresses, Guaiba's sunlight peaks in December with an impressive 361 hours, offering a bright reminder of the vibrant summer ahead.
As May rolls into Guaiba, Brazil, the likelihood of sunny weather remains quite promising, with a 55% chance of sunshine. This positions May as one of the sunnier months, following a relatively bright April at 54% and slightly ahead of the other transitional months that lead into winter. Notably, while the chances of sunshine dip significantly in June to 32%, July rebounds to an impressive 60%, suggesting that the region's weather patterns play an intriguing dance of sun and cloud. Overall, May stands out as an appealing time for outdoor activities, as the sun's rays are likely to outshine the clouds more often than not.
In Guaíba, Brazil, the daylight duration exhibits notable seasonal trends throughout the year. The summer months of January and February enjoy the longest days, basking in 13 hours of sunlight, while as autumn approaches in March, daylight begins to taper off to 12 hours. The trend continues into April, with daylight decreasing further to 11 hours, heralding the arrival of May when the sun shines for just 10 hours a day. This pattern of shorter days persists through June and July, making these months the darkest of the year. As spring arrives in August, daylight begins to lengthen slightly again, reaching 11 hours. This gradual increase continues until November, where the days stretch back to 13 hours in anticipation of summer, culminating in December with the year's peak at 14 hours of glorious sunlight. Overall, Guaíba's daylight hours reflect a rhythmic cycle influenced by the changing seasons, creating a dynamic environment that varies throughout the year.
As May rolls into Guaiba, Brazil, the average wind speed holds steady at 2.7 m/s (6 mph), mirroring the gentle breezes of the previous month. This modest wind pattern is characteristic of late autumn in the region, showing a slight dip from the early months of the year, which experienced stronger currents, particularly in January where the winds reached 3.1 m/s (7 mph). Following a gradual increase towards June, where winds pick up to 3.2 m/s (7 mph), this transitional month offers a tranquil experience. Interestingly, the overall trend showcases a fluctuation between calm and breezy conditions throughout the year, with winds peaking in the winter months, making Guaiba's climate uniquely balanced for nature lovers and outdoor enthusiasts alike.
Weather in Guaiba varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Guaiba, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present distinct weather characteristics that greatly influence the experience of each month. In May, temperatures range from a cool 5°C (41°F) at night to a warm 32°C (90°F) during the day, with an average of 17°C (63°F). This month also sees significant rainfall, with 153 mm (6.0 in) spread over approximately 10 days, accompanied by high humidity levels at 87%. In contrast, January boasts much warmer temperatures, with a minimum of 15°C (58°F) and a maximum of 39°C (103°F), averaging 26°C (79°F). Despite being a wetter month with 93 mm (3.7 in) of rain over about 12 days, the humidity is lower at 77%. For more detailed insights into the weather conditions of January, you can check Guaiba weather in January.
When comparing the weather in May and February, it is clear that February tends to be warmer overall. In February, temperatures range from a minimum of 14°C (58°F) to a maximum of 38°C (100°F), with an average of 25°C (77°F). This contrasts with May, where temperatures vary from 5°C (41°F) to 32°C (90°F), with an average of 17°C (63°F). Additionally, February has slightly less precipitation at 112 mm (4.4 in) over 11 days, compared to May’s 153 mm (6.0 in) over 10 days, and a lower humidity level at 79% versus May's 87%. For a more detailed look at February weather, you can visit Guaiba weather in February.
In comparing the weather between May and March, we see distinct differences in both temperature and precipitation. May typically features a minimum temperature of 5°C (41°F) and averages around 17°C (63°F), with a maximum reaching 32°C (90°F). In contrast, March starts off warmer, with minimum temperatures around 13°C (56°F), averaging 23°C (75°F), and peaking at a high of 38°C (100°F). While May experiences more rain, accumulating about 153 mm (6.0 in) over 10 days with a humidity level of 87%, March has slightly less precipitation at 109 mm (4.3 in) over 12 days, alongside a lower humidity of 79%. For a more detailed look at March weather specifics, you can check Guaiba weather in March.
In comparing the weather of May and April, April boasts slightly warmer temperatures, with an average of 21°C (71°F) and maximum highs reaching up to 34°C (93°F), compared to May's average of 17°C (63°F) and a maximum of 32°C (90°F). However, May experiences more frequent rainfall, with a total precipitation of 153 mm (6.0 in) over 10 days, whereas April has only 73 mm (2.9 in) over 8 days. Additionally, May has higher humidity levels at 87%, compared to April’s 82%. For a more detailed look at April's weather, you can visit Guaiba weather in April.
May and June exhibit comparable temperatures, with May having a slightly higher average temperature of 17°C (63°F) compared to June's 16°C (60°F). May's maximum temperature reaches up to 32°C (90°F), while June sees a slightly lower maximum of 31°C (88°F). Precipitation levels are higher in May, with 153 mm (6.0 in) over 10 days, compared to June's 113 mm (4.4 in) over 9 days. Additionally, humidity is slightly higher in May at 87%, compared to June at 85%. For more details on June weather, you can check Guaiba weather in June.
In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 32°C (90°F), with an average of 17°C (63°F). This month is characterized by higher humidity at 87% and more precipitation, totaling 153 mm (6.0 in) over about 10 days. In contrast, July experiences slightly cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 30°C (87°F), and an average of 14°C (58°F). Precipitation in July is somewhat lower at 122 mm (4.8 in), occurring over 8 days, and the humidity is also reduced to 82%. For more detailed insights, you can check Guaiba weather in July.
In comparing the weather patterns of May and August, we see some notable differences. May typically has a broader temperature range, with minimums around 5°C (41°F) and maximums reaching up to 32°C (90°F), while August's temperatures are slightly cooler, with minimums around 3°C (38°F) and maximums peaking at 34°C (94°F). Precipitation levels are higher in May, totaling 153 mm (6.0 in) over about 10 days, compared to August, which experiences only 70 mm (2.8 in) over 8 days. Additionally, humidity remains higher in May at 87%, whereas August sees a decrease to 81%. For more details on August conditions, check out Guaiba weather in August.
Comparing the weather between May and September reveals some interesting trends. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 32°C (90°F), with an average of 17°C (63°F) and a relatively high humidity level of 87%. The month typically experiences about 153 mm (6.0 in) of precipitation over 10 days.
In contrast, September features slightly warmer conditions, with minimum temperatures of 7°C (45°F) and maximums reaching 36°C (96°F). The average temperature is marginally higher at 18°C (65°F), and the month sees a comparable amount of precipitation at 155 mm (6.1 in) over 12 days, but with slightly lower humidity at 84%. For more details, you can check Guaiba weather in September.
May and October exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 32°C (90°F), with an average of 17°C (63°F) and a humidity level of 87%. This month also sees considerable precipitation, totaling 153 mm (6.0 in) over approximately 10 days. In contrast, October enjoys slightly warmer temperatures, with a minimum of 9°C (49°F) and a maximum of 37°C (100°F), averaging 20°C (68°F) and featuring a lower humidity of 85%. October experiences a bit less rainfall, totaling 139 mm (5.5 in) over 13 days. For more detailed insights, you can check out Guaiba weather in October.
In May, the weather features a broad temperature range with minimums around 5°C (41°F) and maximums reaching up to 32°C (90°F), resulting in an average of 17°C (63°F). The month sees substantial rainfall, totaling 153 mm (6.0 in) over roughly 10 days, accompanied by high humidity levels of 87%. In contrast, November presents a warmer climate with minimum temperatures of 12°C (53°F) and maximums soaring to 37°C (99°F), averaging at 22°C (72°F). Rainfall is somewhat less, totaling 112 mm (4.4 in) over the same number of days, with a slightly lower humidity of 82%. For a detailed look at November weather in Guaiba, check out Guaiba weather in November.
In comparing the weather of May and December, we can observe some notable differences. May typically experiences a wider temperature range, with minimums dipping to 5°C (41°F) and maximums reaching up to 32°C (90°F). In contrast, December maintains a warmer atmosphere with a minimum of 13°C (55°F) and maximums soaring to 38°C (101°F). While May has higher precipitation levels at 153 mm (6.0 in) over about 10 days, December receives less rainfall at 80 mm (3.2 in) across approximately 8 days. Humidity levels are relatively close, with May sitting at 87% and December slightly lower at 84%. For more detailed information, you can check out Guaiba weather in December.
As May unfolds in Guaíba, the weather transforms dramatically, offering a unique blend of warmth and refreshing humidity. Unlike the summer peak months with sweltering heat, May experiences average temperatures that are pleasantly mild, perfect for outdoor activities. The increased humidity and frequent rain—spanning about ten days—contribute to a lush, green landscape that stands in stark contrast to the drier, sunnier days of earlier months. For those looking to explore the vibrant scenery and experience the enchanting atmosphere of Guaíba in this transitionary period, May offers a truly special perspective reshaping the local climate. For more detailed insights, be sure to check out Guaiba Climate.