Last updated: August 21, 2025
May in Santa Cruz do Sul, Brazil offers a diverse weather experience marked by a maximum temperature of 32°C (91°F), providing warm days for outdoor activities. The average temperature hovers around 16°C (62°F), while nighttime chills can drop to a minimum of 3°C (38°F), emphasizing the transition into cooler months. With a significant precipitation amount of 174 mm (6.9 in) spread over 12 days, residents and visitors can expect occasional rain, contributing to the region's lush greenery. The month is characterized by high humidity levels at 87%, creating a rich atmosphere that enhances the local flora and the overall ambiance of this vibrant Brazilian locale.
In May, Santa Cruz do Sul experiences a noticeable transition into cooler weather, with temperatures ranging from a chilly 3°C (38°F) at night to a comfortable 32°C (91°F) during the day. The average temperature settles at around 16°C (62°F), marking a distinct drop from the warmer summer months preceding it. This shift not only highlights a significant decrease in nighttime lows compared to April but also suggests a gradual descent towards the colder winter months of June and July. Despite this cooling trend, the maximum temperatures still provide a pleasant warmth, allowing for enjoyable outdoor activities—a perfect blend of springtime freshness and lingering warmth before the cold sets in.
May marks a significant peak in precipitation for Santa Cruz do Sul, Brazil, with an impressive 174 mm (6.9 in) of rain falling across 12 days. This month stands out not only for its high volume of rainfall but also for the notable transition it represents in the region's weather pattern. As the dry spell of April, with only 82 mm (3.2 in) of rain, gives way to May's lush downpours, it's evident that the region experiences a dramatic shift towards wetter conditions. Following May, the precipitation slightly tapers off in June with 117 mm (4.6 in), suggesting a seasonal rhythm that sets the stage for the drier months ahead. The increase in rainfall in May not only replenishes local ecosystems but also signifies the onset of a vibrant, lush landscape as winter approaches.
May in Santa Cruz do Sul, Brazil, ushers in a notable peak in humidity, reaching 87%—the highest for the year. This month continues the trend of increased moisture that begins in April, where the humidity spikes to 81%. Following May, June experiences a slight decrease to 84%, but it remains significantly humid throughout the winter months. Interestingly, the summer months of January to March maintain a more moderate humidity level, averaging around 73-74%, before culminating in this humid crescendo in May. As the year turns, the humidity generally trends downward towards the drier months of August and September, showcasing a seasonal rhythm that characterizes the climate of this vibrant region.
In May, Santa Cruz do Sul, Brazil, experiences a notable shift in its UV Index, registering a moderate level of 6. This marks a decrease from the extreme conditions observed in the peak months of January to March, where the burn time was just 10 minutes. As the seasons change, May's high exposure category allows for a longer burn time of 25 minutes, making it a more forgiving month for outdoor activities. This trend of fluctuating UV levels continues into June and July, where the index drops further to 5, categorizing it as moderate. As summer approaches again, the UV levels are expected to rise dramatically. For more details on UV exposure throughout the year, check Santa Cruz do Sul UV Index.
UV Risk Categories
In Santa Cruz do Sul, Brazil, May brings a gentle descent into the cooler months, showcasing 224 hours of sunshine. Although this marks a dip compared to the sun-drenched highs of January's 263 hours and November's impressive 310 hours, May still offers ample opportunity for outdoor pursuits under the softening light of autumn. As the months progress from the sunniest December, with its dazzling 361 hours, to June’s more subdued 205 hours, the trend reflects a seasonal ebb and flow of sunlight. This rhythm creates a rich tapestry of weather, making May a lovely transitional month where sunshine dances with the emerging chill, inviting both residents and visitors to enjoy nature’s vibrant colors.
When considering the likelihood of sunny weather in May in Santa Cruz do Sul, Brazil, the forecast appears promising with a 59% chance of sunshine. This figure places May in a favorable position compared to the preceding months, such as January and March, which show lower chances at 46% and 43% respectively. Additionally, the weather in April offers a mild increase to 57%, paving the way for May’s inviting conditions. Notably, as the year progresses into the winter months, a significant drop is observed in June with only a 35% chance of sunny days. This highlights May as a key transitional month, providing ample opportunity to bask in the sun before the cooler, cloudier months set in.
In Santa Cruz do Sul, Brazil, the daylight duration demonstrates a clear seasonal pattern throughout the year. Starting with long days in January and February, each offering 13 hours of sunlight, the days slowly shorten as we transition into March with 12 hours. By the time April arrives, daylight reduces further to 11 hours, culminating in May, where it hits 10 hours—the briefest of the year. This shorter daylight continues into June and July, before gradually extending once again in August and September, bringing back 11 hours. As spring progresses into summer, daylight makes a notable comeback, reaching 14 hours by December. This ebb and flow of sunlight not only marks the changing seasons but also sets the rhythm of outdoor life in this vibrant Brazilian city.
In Santa Cruz do Sul, Brazil, May marks a gentle transition in wind patterns, with an average speed of 2.2 m/s (5 mph). This slight dip from the previous month's 2.5 m/s indicates a trend of decreasing wind as the region shifts from the breezy months of April into the cooler embrace of winter. As spring flowers bloom, the calming winds create a serene atmosphere, making it a perfect time for outdoor activities. Interestingly, the months preceding May show a consistent average around 2.4 to 2.7 m/s, suggesting that the breezy days of autumn are gradually giving way to the more tranquil winter winds that hover around 2.5 m/s for the following months. With this enticing blend of gentle breezes and pleasant weather, May offers a delightful respite in Santa Cruz do Sul before the more robust winds of June come rushing in.
Weather in Santa Cruz do Sul varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Santa Cruz do Sul, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January in Santa Cruz do Sul present distinct weather patterns. In May, temperatures range from a cool minimum of 3°C (38°F) to a comfortable average of 16°C (62°F), peaking at a warm 32°C (91°F). This month is characterized by higher precipitation, totaling 174 mm (6.9 in) over about 12 days, alongside a significant humidity of 87%.
In contrast, January features much milder temperatures, with a minimum of 12°C (54°F), an average of 25°C (77°F), and a maximum of 39°C (103°F). The precipitation is lower at 120 mm (4.7 in) and occurs over approximately 13 days, complemented by a lower humidity level of 74%. For more details on January's climate, check out Santa Cruz do Sul weather in January.
Comparing the weather in May and February reveals notable differences. In May, temperatures range from a minimum of 3°C (38°F) to a maximum of 32°C (91°F), with an average of 16°C (62°F). This month experiences significant precipitation, totaling 174 mm (6.9 in) over about 12 days and high humidity at 87%. In contrast, February sees warmer temperatures, with a minimum of 11°C (52°F) and a maximum reaching 37°C (99°F), along with an average of 24°C (76°F). The precipitation is lower at 94 mm (3.7 in) over 11 days, accompanied by a more comfortable humidity level of 73%. For more detailed information on February weather, you can visit Santa Cruz do Sul weather in February.
When comparing the weather in May to that of March, notable differences emerge. In March, temperatures are warmer overall, with a minimum of 11°C (52°F) and a maximum reaching up to 38°C (101°F), while May experiences a cooler range, with temperatures spanning from a minimum of 3°C (38°F) to a maximum of 32°C (91°F). Additionally, March has a slightly lower humidity level at 73%, compared to the higher humidity of 87% in May. Precipitation also varies, with March recording 110 mm (4.3 in) over 9 days, while May sees more rainfall at 174 mm (6.9 in) over 12 days. For a more detailed look at March weather patterns, check out Santa Cruz do Sul weather in March.
When comparing the weather in May to that of April, we observe a notable shift in temperatures and precipitation patterns. In May, the temperatures range from a minimum of 3°C (38°F) to a maximum of 32°C (91°F), with an average of 16°C (62°F), showing a decrease in the minimum temperature compared to April's more comfortable range of 7°C (45°F) to 34°C (94°F) and an average of 20°C (69°F). Additionally, May experiences significantly higher precipitation, totaling 174 mm (6.9 in) over 12 days, whereas April sees only 82 mm (3.2 in) across 9 days. Furthermore, the humidity levels rise slightly in May to 87% compared to April's 81%, adding to the overall mugginess of the month. For a deeper look at April's climate, you can visit Santa Cruz do Sul weather in April.
In comparing the weather between May and June, it is evident that May offers a broader range of temperatures, with a minimum of 3°C (38°F) and a maximum of 32°C (91°F), while June has slightly cooler conditions, ranging from 0°C (32°F) to a maximum of 30°C (87°F). May experiences higher precipitation levels, totaling 174 mm (6.9 in) across 12 days, compared to June's 117 mm (4.6 in) over just 9 days. Additionally, May's humidity is slightly higher at 87%, compared to June's 84%. For more specific details on June weather, you can refer to Santa Cruz do Sul weather in June.
In comparing the weather of May and July, we observe some notable differences. May experiences a broader temperature range, with minimums dropping to 3°C (38°F) and maximums reaching up to 32°C (91°F), while July sees a lower minimum of -1°C (31°F) but a similar maximum of 31°C (87°F). Precipitation is more significant in May, with 174 mm (6.9 in) spread over 12 days compared to July's 115 mm (4.5 in) over just 10 days. Additionally, the humidity is slightly higher in May at 87%, compared to July's 80%. For more specific details regarding July weather, you can visit Santa Cruz do Sul weather in July.
May and August exhibit distinct weather patterns, showcasing a transition in climate. In May, temperatures range from a chilly 3°C (38°F) to a warm 32°C (91°F), with an average of 16°C (62°F). The month is characterized by high humidity at 87% and significant rainfall of 174 mm (6.9 in) over 12 days. In contrast, August sees slightly cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 34°C (94°F), averaging 15°C (60°F). Rainfall decreases to 86 mm (3.4 in) over just 9 days, and humidity drops to 71%. For more detailed insights, visit Santa Cruz do Sul weather in August.
May and September present notable differences in weather patterns. May typically sees a broader range of temperatures, with minimums dipping to 3°C (38°F) and maximums reaching 32°C (91°F), accompanied by relatively high humidity at 87% and significant precipitation of 174 mm (6.9 in) over about 12 days. In contrast, September features slightly milder temperatures, with a minimum of 5°C (41°F) and a maximum of 34°C (94°F), while also experiencing less humidity at 74% and lower precipitation levels of 154 mm (6.1 in) over 11 days. For more detailed insights, you can explore Santa Cruz do Sul weather in September.
When comparing the weather in May and October, one can observe several notable differences. May typically features a minimum temperature of 3°C (38°F) and an average of 16°C (62°F), with maximum temperatures reaching up to 32°C (91°F). In contrast, October sees slightly warmer temperatures, with a minimum of 8°C (46°F) and an average of 19°C (67°F), as well as maximum temperatures soaring to 38°C (100°F).
Precipitation levels are similar; May experiences 174 mm (6.9 inches) of rain over about 12 days, while October has 170 mm (6.7 inches) across 13 days. Additionally, humidity is higher in May at 87%, compared to October's 77%. For more detailed insights, check out Santa Cruz do Sul weather in October.
May and November showcase distinct weather patterns, reflecting the transition between seasons. In May, temperatures range from a chilly 3°C (38°F) to a warm 32°C (91°F), with an average of 16°C (62°F) and higher humidity at 87%. Precipitation is notable, with 174 mm (6.9 in) falling over 12 days, making it a relatively wet month. In contrast, November experiences milder temperatures, with a minimum of 10°C (50°F) and a maximum reaching up to 38°C (100°F), averaging 21°C (71°F). This month sees less rainfall, totaling 124 mm (4.9 in) over 10 days, and a decrease in humidity to 77%. For a detailed overview, check out Santa Cruz do Sul weather in November.
May and December present contrasting weather patterns, showcasing the transition from a cooler spring month to a hot summer month. In May, temperatures range from a minimum of 3°C (38°F) to a maximum of 32°C (91°F), with an average of 16°C (62°F). Rainfall is significant in May, totaling 174 mm (6.9 in) across 12 days, accompanied by high humidity levels of 87%. In contrast, December boasts warmer temperatures, with a minimum of 10°C (51°F), an average of 24°C (75°F), and a peak of 39°C (102°F). Precipitation drops to 80 mm (3.1 in) over just 8 days, and humidity remains relatively high at 85%. For a closer look at December's climate specifics, check out Santa Cruz do Sul weather in December.
As May settles in, Santa Cruz do Sul experiences a notable shift in weather patterns, transitioning from the warmth of the preceding months to cooler temperatures that can dip quite low. While daytime highs offer a comfortable atmosphere, the evenings can be brisk, necessitating layers for outdoor activities. This month also introduces a significant amount of rainfall, with higher humidity levels that can make the air feel quite heavy. Compared to the drier, warmer conditions earlier in the year, May brings a refreshing yet wetter climate that encourages the vibrant greenery of the region to flourish. For more detailed insights, visit Santa Cruz do Sul Climate.