Last updated: August 21, 2025
May in Guarulhos, Brazil unveils a captivating climate characterized by temperatures ranging from a mild 6°C (43°F) at night to a maximum of 29°C (84°F) during the day, with an average temperature settling at a comfortable 18°C (65°F). The month sees an average precipitation of 56 mm (2.2 in) across 7 rainy days, contributing to the region's lush greenery. With humidity levels peaking at 79%, May offers a blend of refreshing air and vibrant sights, making it a unique time to experience the beauty of Guarulhos.
In May, temperatures in Guarulhos, Brazil begin to shift towards the cooler end of the spectrum, marking a transition from the warmer months. The minimum temperature dips to a crisp 6°C (43°F), while the average settles at a comfortable 18°C (65°F), providing a refreshing change after the heat of April. Daytime highs can still reach a pleasant 29°C (84°F), allowing for plenty of sunny moments. Overall, May features a blend of cool mornings and warm afternoons, making it an ideal time for outdoor activities and enjoying the vibrant Brazilian landscape as the city embraces the mild autumn climate.
May in Guarulhos, Brazil, marks a transitional period in precipitation patterns, with rainfall tapering off as the region approaches its drier months. This year, May recorded 56 mm (2.2 in) of rain over seven days, continuing the trend of significantly reduced precipitation from the previous months. Following the wet start to the year, characterized by heavy downpours in January and February, May's rainfall indicates a decline from the 58 mm (2.3 in) seen in April. This decrease sets the stage for the onset of drier conditions that typically usher in the winter season, aligning with a notable reduction in precipitation days moving forward into June. Overall, May serves as a pivotal transition, bridging the wetter months and the approaching dry spell.
In May, Guarulhos experiences a noticeable shift in humidity, with levels dropping to 79% from the more tropical heights of 88% in January and February. This decline marks the beginning of a trend towards drier conditions that continues into the subsequent months; by June, humidity dips further to 77% and gradually decreases to 65% by August. The transition into the drier half of the year not only offers residents a respite from the high humidity typical of earlier months but also sets the stage for a more comfortable climate as the city approaches the cooler seasons. Overall, the shift in May signifies the onset of a refreshing change, paving the way for lower humidity that characterizes Guarulhos' later months.
In May in Guarulhos, Brazil, the UV Index drops to 8, reflecting a very high exposure category with a burn time of 15 minutes. This marks a noticeable decrease from the extreme levels seen in the first four months of the year, where the index hovered above 11 with a consistent burn time of just 10 minutes. As the seasons transition, May offers a brief respite from the intense sun, but caution is still essential. The UV Index will remain high in the following months, so be prepared by checking the trends and staying protected. For more details, visit Guarulhos UV Index.
UV Risk Categories
In Guarulhos, Brazil, May shines brightly with an impressive 281 hours of sunshine, reflecting a trend of steadily increasing daylight as the year progresses. Following April's 293 hours, May maintains a healthy glow, promising plenty of opportunities for outdoor activities. As the seasons transition, it's interesting to note that January starts the year with 251 hours but steadily climbs to an annual peak in December with 318 hours. This growth pattern indicates that, as May arrives, residents can enjoy a delightful mix of warmth and vibrancy, setting the stage for an energetic lead-up to the peak summer months ahead. The sunny outlook not only enhances the beauty of the city but also invigorates the community's spirit as they soak in the abundant light.
In Guarulhos, Brazil, the likelihood of sunny weather in May stands at 35%, a trend that mirrors the previous months of April and June, both also boasting the same chance of sunshine. This consistency indicates that while May is not among the sunniest months, it still provides a decent opportunity for clear skies, especially when compared to the more overcast conditions seen in earlier months like January and October. As we transition into the mid-year months, the probability of sunny days sees a boost in July, reaching an impressive 55%, setting the stage for brighter days ahead.
In Guarulhos, Brazil, the daylight duration presents a fascinating shift throughout the year, revealing a rhythm of light and dark that echoes the changing seasons. The year begins with 13 hours of daylight in January, gradually tapering to 10 hours by May, marking the onset of winter. This trend of reduced daylight continues into June and July, where the city experiences a stable 10 hours. As spring approaches in August, daylight begins to reclaim its hours, returning to 11 hours, and this pattern of increasing light persists into the later months. By November and December, Guarulhos enjoys a generous 13 hours of daylight again, signaling the vibrant energy of summer's return. This cyclical pattern not only highlights the beauty of nature's transitions but also enhances the daily life and activities of those in this bustling city.
In May, Guarulhos experiences a gentle breeze with an average wind speed of 2.5 m/s (6 mph). This slight uptick in wind compared to the previous month maintains a sense of calm yet invigorating atmosphere, just as the city transitions fully into autumn. As we analyze the trend from earlier months, it's evident that wind speeds start to increase in the late fall, peaking in October at 3.5 m/s (8 mph) before gradually tapering off again. This gradual escalation hints at a refreshing shift in the weather pattern, making May a delightful month for outdoor activities, where you can enjoy the soothing winds while soaking up the vibrant atmosphere of this Brazilian locale.
Weather in Guarulhos varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Guarulhos, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between May and January, we see distinct seasonal differences. May generally experiences milder temperatures, with a minimum of 6°C (43°F) and an average of 18°C (65°F), rising to a maximum of 29°C (84°F). The month sees moderate precipitation of 56 mm (2.2 in) over about 7 days, with humidity averaging around 79%.
In contrast, January is significantly warmer, boasting a minimum temperature of 15°C (59°F) and averaging 23°C (74°F), while highs can reach 33°C (91°F). However, this month also brings more rain, with a total precipitation of 192 mm (7.6 in) spread over 19 days and a higher humidity level of 88%. For a deeper look into January's weather specifics, check out Guarulhos weather in January.
When comparing the weather in May and February, we notice significant differences in temperature and precipitation. May experiences a milder range of temperatures, with a minimum of 6°C (43°F) and an average of 18°C (65°F), peaking at 29°C (84°F). In contrast, February is notably warmer, with a minimum of 15°C (59°F) and an average of 22°C (73°F), reaching a maximum of 34°C (93°F). Additionally, February sees much heavier rainfall, totaling 166 mm (6.5 in) over 18 days compared to May's 56 mm (2.2 in) over just 7 days. The humidity is also higher in February at 88%, while May's humidity sits at 79%. For more insights on February's weather, you can check out Guarulhos weather in February.
In comparing the weather between May and March, one can observe notable differences. May typically experiences a cooler temperature range with a minimum of 6°C (43°F) and an average of 18°C (65°F), peaking at a maximum of 29°C (84°F). It also sees relatively mild precipitation at 56 mm (2.2 in) over about 7 days, accompanied by a humidity level of 79%. In contrast, March is warmer, with temperatures ranging from a minimum of 14°C (57°F) to an average of 22°C (73°F) and a maximum of 32°C (90°F). It is also significantly wetter, receiving 147 mm (5.8 in) of rain over approximately 18 days, and features a higher humidity level of 87%. For more details on the climate in this month, visit Guarulhos weather in March.
In comparing the weather between April and May, April generally presents warmer conditions, with average temperatures around 20°C (69°F) and daily highs reaching up to 31°C (88°F). In contrast, May cools down slightly, featuring an average temperature of 18°C (65°F) and maximums peaking at 29°C (84°F). Although both months see a similar amount of precipitation—58 mm (2.3 in) in April and 56 mm (2.2 in) in May—April experiences slightly more rainy days, totaling 9 days compared to May's 7 days. Additionally, humidity levels in April are marginally higher at 84%, compared to 79% in May. For more specific details, you can check Guarulhos weather in April.
May and June exhibit similar temperature patterns, with average temperatures hovering around 18°C (65°F). In May, temperatures can range from a low of 6°C (43°F) to a high of 29°C (84°F), while June sees slightly milder temperatures, with a minimum of 7°C (45°F) and a maximum of 28°C (82°F). Precipitation levels are also comparable; May receives about 56 mm (2.2 in) over 7 days, while June typically has 48 mm (1.9 in) across the same number of days. Both months feature high humidity, with May at 79% and June slightly lower at 77%. For more details on the weather in June, check out Guarulhos weather in June.
In May, the weather showcases a wider range of temperatures, with minimums around 6°C (43°F) and average highs reaching up to 29°C (84°F), reflecting a pleasant warmth as the spring blooms. With 56 mm of precipitation over about 7 days and a humidity level of 79%, May tends to be more humid and wetter compared to July.
In contrast, July experiences a cooler minimum temperature of 2°C (35°F) and an overall lower average of 16°C (62°F), whilst still peaking at 29°C (84°F). Rainfall decreases significantly to just 29 mm across 3 days, along with a slight dip in humidity to 72%. This makes July a less humid and drier month, providing a different experience for those exploring outdoor activities. For more specific insights on July weather, you can check Guarulhos weather in July.
In comparing the weather between May and August, we see some notable differences. May typically features a minimum temperature of 6°C (43°F) and an average of 18°C (65°F), with maximums reaching up to 29°C (84°F). The month experiences about 56 mm (2.2 in) of precipitation spread over approximately 7 days and maintains a higher humidity level at 79%. In contrast, August has slightly lower minimum temperatures at 5°C (42°F) and a marginally cooler average of 17°C (63°F), with maximum temperatures peaking at 31°C (89°F). Rainfall increases to 64 mm (2.5 in) over 8 days, but humidity drops significantly to 65%. Overall, while both months experience relatively mild temperatures, August tends to be slightly drier and less humid. For more details on weather patterns, you can visit Guarulhos weather in August.
In comparing the weather between May and September, we see notable differences in temperature and humidity levels. May typically experiences a wider temperature range, with minima around 6°C (43°F) and maxima reaching up to 29°C (84°F), averaging 18°C (65°F). This month also brings higher humidity at 79% and more rainfall, accumulating around 56 mm (2.2 in) over 7 days. In contrast, September boasts slightly warmer temperatures, with a minimum of 9°C (48°F) and a maximum of 34°C (94°F), averaging at 20°C (68°F). The humidity decreases to 58%, and the precipitation is less, totaling about 47 mm (1.9 in) over 6 days. For a closer look at the specific weather patterns during this month, check out Guarulhos weather in September.
May and October present distinct weather patterns, with noticeable differences in temperature and precipitation. In May, temperatures range from a cool 6°C (43°F) to a warm 29°C (84°F), averaging around 18°C (65°F). Precipitation is moderate, with about 56 mm (2.2 in) falling over 7 days, and humidity levels are relatively high at 79%. In contrast, October features milder temperatures, with a lower minimum of 12°C (53°F) and a higher maximum of 36°C (97°F), averaging 20°C (69°F). However, October experiences significantly more rainfall, totaling 135 mm (5.3 in) over 16 days and a drop in humidity to 50%. For a closer look at what to expect in October, you can check Guarulhos weather in October.
May and November present contrasting weather patterns. In May, temperatures range from a minimum of 6°C (43°F) to a pleasant average of 18°C (65°F), peaking at 29°C (84°F). Precipitation is measured at 56 mm (2.2 in), with rainfall occurring on about 7 days, contributing to a higher humidity level of 79%. In contrast, November boasts warmer temperatures with a minimum of 11°C (52°F) and an average of 20°C (69°F), reaching maximums of 34°C (94°F). The month experiences significantly more rain, totaling 126 mm (5.0 in) over 16 days, while humidity remains relatively lower at 75%. For more detailed insights, check out Guarulhos weather in November.
In comparing the weather of May and December, we see notable differences in temperature and precipitation. May boasts a cooler climate with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 29°C (84°F) and an average of 18°C (65°F), alongside relatively low precipitation of 56 mm (2.2 in) over 7 days and a humidity level of 79%. In contrast, December experiences warmer temperatures, with a minimum of 12°C (54°F), an average of 22°C (72°F), and a maximum of 33°C (92°F). However, it also brings significantly higher rainfall, totaling 150 mm (5.9 in) across 22 days and a slightly increased humidity of 80%. For more detailed insights, check out Guarulhos weather in December.
As May arrives in Guarulhos, the weather presents a refreshing transition, marked by milder temperatures and increasing humidity. With average highs around a comfortable 29°C and lows dropping to a chilly 6°C, this month stands out against the heat of preceding months. Rainfall is relatively modest, with about seven days of precipitation contributing to an overall humidity level of 79%. This creates a unique atmosphere, making May a pleasant yet variable month in Guarulhos. For more detailed insights into Guarulhos' climate, visit Guarulhos Climate.