Last updated: August 21, 2025
In May, Blumenau, Brazil experiences a vibrant transition into winter, with temperatures reaching a maximum of 31°C (89°F) and an average of 18°C (65°F). While warm days invite outdoor activities, nights can dip to a cooler 5°C (41°F), reminding residents of the approaching chill. The month sees significant precipitation, totaling 112 mm (4.4 in) over 13 days, contributing to the lush, green landscapes the region is known for. High humidity levels around 86% create a tropical atmosphere, making May a unique blend of warmth and refreshing showers in Blumenau.
In May, Blumenau experiences a transition into cooler temperatures, marking a noteworthy shift from the warmth of the previous months. With a minimum of 5°C (41°F) and an average of 18°C (65°F), the city's climate becomes more temperate, making it an ideal time for outdoor activities. Despite the drop in temperature, the days remain pleasant, peaking at a comfortable 31°C (89°F), reminiscent of early summer warmth. This unique blend of cooler mornings and mild afternoons makes May a delightful month, as the vibrancy of autumn settles in, paving the way for the cooler winter months ahead. Overall, it's a time of transition that balances the lingering heat with refreshing breezes, creating a perfect playground for both locals and visitors alike.
In May, Blumenau experiences a moderate precipitation level of 112 mm (4.4 in), falling in line with the trend of decreasing rainfall as the region transitions into winter. This month typically sees around 13 days of rain, which is notably fewer than the earlier months of the year, suggesting a shift towards drier weather patterns. Following the heavy downpours of January to March, which collectively exceed 200 mm, May's rainfall is a gentle moderation, offering a brief respite before the colder months that precede it. As June approaches, precipitation inches upward slightly to 117 mm, signaling a gradual increase once again, albeit with fewer rainy days, setting the stage for the diverse weather shifts that define Blumenau's dynamic climate.
In Blumenau, Brazil, May humidity remains consistently high, measuring at 86%, closely mirroring the levels seen in January and November. This persistently elevated humidity signifies a tropical climate, delivering a lush and vibrant environment, particularly in this late autumn month. As the seasons transition, humidity levels show a decline in the following months, with July and August experiencing the lowest averages at 80% and 79% respectively. However, the pattern of hovering around the mid-80s during the peak autumn months illustrates a remarkable stability in Blumenau's atmospheric conditions, creating an inviting, yet humid atmosphere for both residents and visitors alike.
In May, Blumenau, Brazil experiences a high UV Index of 7, indicating that sun safety remains essential, although the risk of harm from unprotected sun exposure is lower compared to the intense levels seen earlier in the year. With a recommended burn time of 25 minutes, residents and visitors can enjoy the outdoors while taking precautions, contrasting sharply with the extreme levels of UV exposure found in the summer months, where burn times dip dramatically to just 10 minutes. This trend highlights a shift towards more manageable sun conditions, though vigilance is still vital as the UV Index will rise again in the months following May. For more insights on UV levels throughout the year, visit Blumenau UV Index.
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May in Blumenau, Brazil, embraces a delightful ambiance with 232 hours of sunshine, contributing to a pleasant spring atmosphere. As the city transitions from the vibrant summer months of January through April—where sunshine hours peak at 282 in March—May finds itself in a gentle decline, yet remains well above the cooler months ahead. The sunshine begins to wane into June, boasting only 207 hours, but May's sunlight still stands in contrast to the winter chill that follows. Notably, the latter half of the year experiences a fluctuation in sunny days, yet May holds onto a sense of warmth, reminding residents and visitors alike that vibrant days still linger before the season shifts. Overall, this transitional month encapsulates the essence of Blumenau's weather, poised gracefully between the exuberance of summer and the calm of winter.
In Blumenau, Brazil, the likelihood of sunny weather experiences notable fluctuations throughout the year. As we transition into May, the chance of sunshine stands at 44%, just slightly below the preceding month of April, which boasts a 43% likelihood. This marks a favorable period compared to the earlier months like January and March, where sunny days are much less likely at 14% and 26% respectively. June sees a dip to 32%, but the exciting summer months ahead, particularly July with a 52% chance, promise a brighter outlook as the year progresses. With the spring blooming in full swing, May presents a sweet spot for catching rays while enjoying the lush surroundings of Blumenau.
In Blumenau, Brazil, the progression of daylight duration throughout the year reveals a distinct pattern shaped by the changing seasons. January shines with a generous 13 hours of daylight, gradually tapering to 12 hours in both February and March, before dipping to 11 hours in April. As we step into May, daylight shrinks to 10 hours, a trend that persists through June and July, when the nights stretch a little longer. However, as winter wanes, August brings a return to 11 hours, igniting the promise of brighter days ahead. This upward trajectory continues with 12 hours in October and peaks again at 13 hours by November and December, creating a rhythmic symphony of light and darkness that defines each season in this charming Brazilian city.
In Blumenau, Brazil, the winds of May gently carry an average speed of 1.6 m/s (4 mph), mirroring the calmness of April. This consistency hints at a transitional period as the region shifts from the lighter breezes of early autumn into the subtly stronger winds of winter. Interestingly, the months surrounding May display a rhythmic pattern, with wind speeds gradually increasing from 1.5 m/s in March to a peak of 2.0 m/s in October through December. Such data illustrates a soothing yet steady climatological trend, where May's winds provide an inviting ambiance for outdoor activities while also whispering the promise of the seasonal changes ahead.
Weather in Blumenau varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Blumenau, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in May and January, we find distinct seasonal differences. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 31°C (89°F), with an average of 18°C (65°F). The month sees around 112 mm (4.4 in) of precipitation over 13 days, while humidity remains high at 86%. Conversely, January experiences warmer conditions, with temperatures ranging from a minimum of 16°C (61°F) to a scorching maximum of 38°C (101°F), and an average temperature of 24°C (76°F). This month is also wetter, receiving approximately 218 mm (8.6 in) of rainfall on 20 days, maintaining the same humidity level of 86%. For a detailed look at January weather, you can check Blumenau weather in January.
In comparing the weather between May and February, we observe notable differences. May experiences a cooler temperature range with a minimum of 5°C (41°F) and an average of 18°C (65°F), while February boasts significantly warmer temperatures, with a minimum of 12°C (54°F) and an average of 24°C (75°F). The maximum temperature in February reaches up to 36°C (97°F), making it the hotter month compared to May's maximum of 31°C (89°F). Additionally, February has higher precipitation, measuring 186 mm (7.3 in) over 19 days, as opposed to May's 112 mm (4.4 in) spread over 13 days. Humidity levels are also quite similar, with February at 83% and May at 86%. For a detailed overview of February's weather conditions, you can check Blumenau weather in February.
In comparing the weather between March and May, we see some distinct differences. March typically features higher average temperatures, with a minimum of 15°C (59°F) and a maximum of 33°C (93°F), while May's temperatures range from a cooler minimum of 5°C (41°F) to a warmer maximum of 31°C (89°F). Additionally, March experiences more rainfall, totaling 160 mm (6.3 in) over 22 days, compared to May’s 112 mm (4.4 in) over 13 days. Humidity levels remain fairly similar in both months, with May at 86% and March at 85%. For more detailed insights about March's weather, you can check this link: Blumenau weather in March.
When comparing the weather in April and May, it’s interesting to note that April generally experiences slightly warmer temperatures, with an average of 21°C (69°F) compared to May’s 18°C (65°F). While both months have similar maximum temperatures, April has a slightly higher minimum temperature of 8°C (47°F) versus May's 5°C (41°F). In terms of precipitation, May is wetter, receiving 112 mm (4.4 in) over 13 days, compared to April's 90 mm (3.6 in) across 14 days. Humidity levels remain relatively consistent, with April at 85% and May slightly higher at 86%. For a more detailed look at April's climate, you can visit Blumenau weather in April.
May and June exhibit similar weather patterns, though there are slight variations in temperature and precipitation. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 31°C (89°F), with an average of 18°C (65°F) and a higher humidity of 86%. Precipitation is notable, totaling 112 mm (4.4 in) over 13 days. In contrast, June brings a slightly cooler climate with temperatures ranging from 4°C (39°F) to 30°C (86°F), averaging 17°C (62°F). While June experiences a bit more precipitation at 117 mm (4.6 in) over 11 days, humidity remains relatively stable at 85%. For a detailed look at the weather during June, you can visit Blumenau weather in June.
In May, the weather features a wider range of temperatures, with a minimum of 5°C (41°F) and a maximum that can reach up to 31°C (89°F), averaging around 18°C (65°F). The month sees significant rainfall, with 112 mm (4.4 in) spread over approximately 13 days, and a high humidity level of 86%. In contrast, July presents a cooler atmosphere, with temperatures dipping to a minimum of 0°C (32°F) and averaging 15°C (60°F), while still allowing for warm highs near 30°C (87°F). Rainfall is much lighter in July, totaling 48 mm (1.9 in) over just 8 days, and humidity decreases slightly to 80%. For a more detailed look at July weather specifically, you can visit Blumenau weather in July.
May and August present distinct weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 31°C (89°F), with an average temperature of 18°C (65°F). This month typically sees higher precipitation, averaging 112 mm (4.4 in) over 13 days and a notably high humidity level of 86%. In contrast, August features slightly cooler conditions, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 32°C (89°F) and a lower average of 16°C (61°F). Additionally, August experiences less rainfall, totaling around 73 mm (2.9 in) over 10 days, accompanied by a lower humidity of 79%. For more detailed information, check out Blumenau weather in August.
May and September in Blumenau exhibit surprisingly similar weather patterns, with slightly warming temperatures as the seasons change. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 31°C (89°F), with an average of 18°C (65°F). September sees a slight increase in the minimum temperature, reaching 6°C (44°F) while keeping the maximum the same at 31°C (87°F) and averaging 19°C (66°F). Both months experience comparable levels of precipitation, with May receiving 112 mm (4.4 in) and September slightly higher at 115 mm (4.5 in), spread over 13 rainy days each. However, humidity is slightly lower in September at 82%, compared to 86% in May. For more detailed information on September weather, visit Blumenau weather in September.
In comparing the weather of May and October, we see distinct differences in temperature and precipitation. May boasts a wider range of temperatures, with a minimum of 5°C (41°F) and a maximum of 31°C (89°F), making it feel quite warm during the day despite the cooler nights. In contrast, October offers a slightly higher average temperature, with a minimum of 9°C (49°F) and a maximum of 36°C (96°F), suggesting a more consistently warm environment. However, October experiences more rainfall, totaling 154 mm (6.1 in) over 19 days, compared to May's 112 mm (4.4 in) over 13 days. Additionally, humidity levels remain high in both months, with May at 86% and October slightly lower at 82%. For more details on the October weather in Blumenau, you can check Blumenau weather in October.
May and November in Blumenau offer distinct variations in weather, although both months share the same humidity level of 86%. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 31°C (89°F), with an average of 18°C (65°F). The month experiences 112 mm (4.4 in) of precipitation over about 13 days, signaling the onset of the wet season. In contrast, November presents a milder climate with a higher minimum temperature of 10°C (50°F) and a maximum reaching 35°C (95°F), alongside an average temperature of 21°C (70°F). Precipitation increases to 137 mm (5.4 in) spread over 20 days, indicating more frequent rainfall. For more details on November weather, you can visit Blumenau weather in November.
May and December present distinctly different weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 31°C (89°F), with an average of 18°C (65°F). The month experiences 112 mm (4.4 in) of precipitation over 13 days, and the humidity sits at a comfortable 86%. In contrast, December sees warmer temperatures, with a minimum of 12°C (54°F) and a maximum that can reach 36°C (97°F), averaging 23°C (73°F). Precipitation increases to 192 mm (7.6 in) over 21 days, accompanied by slightly higher humidity at 88%. For more specific insights into December's weather, you can check Blumenau weather in December.
As May arrives in Blumenau, the weather experience shifts significantly compared to the warmer months. Average temperatures dip to a comfortable 18°C, offering a pleasant respite from the heat, while the maximum can soar up to a striking 31°C. However, this transition also brings an increase in rainfall, with about 112 mm falling over 13 days, leading to heightened humidity levels at 86%. This blend of warmth and moisture creates a lush landscape, characteristic of late autumn in the region. For more detailed insights about the city's annual climate, check out Blumenau Climate.