Last updated: August 21, 2025
In May, Santana de Parnaíba experiences a delightful climate characterized by mild temperatures. With a maximum temperature reaching 30°C (86°F) and an average of 18°C (65°F), residents enjoy pleasant days contrasted by cooler nights, where temperatures can dip to a crisp 4°C (39°F). The humidity levels hover around a comfortable 79%, enhancing the overall experience. However, visitors should be prepared for some rain, as the month sees an average precipitation of 46 mm (1.8 in) spread over approximately 5 days. This combination of mild temperatures, moderate humidity, and occasional showers creates a vibrant atmosphere perfect for exploring this charming Brazilian town.
In May, Santana de Parnaíba greets visitors with a refreshing transition as temperatures dip compared to the preceding months. The minimum temperature can drop to a cool 4°C (39°F), providing a brisk start to the day, while the average temperature settles comfortably at 18°C (65°F), making it an ideal time for outdoor exploration. During the afternoons, the maximum temperature rises to a pleasant 30°C (86°F), offering warmth yet remaining bearable. This month marks a distinct shift towards cooler, more temperate weather, contrasting sharply with the often sweltering heat of January and February. As the month progresses, residents and tourists alike can enjoy the harmonious blend of cool mornings and warm afternoons, captivating the charm of late autumn in Brazil.
May marks a significant shift in precipitation patterns in Santana de Parnaíba, Brazil, as rainfall tapers to 46 mm (1.8 in) over just five days. This is a notable decline compared to the previous months, particularly from the peak in January at 175 mm (6.9 in). The transition from the rainy season is evident, with May experiencing a sharp drop in precipitation from April's 54 mm (2.1 in). As the year progresses, rainfall levels remain consistent in June, but both months register the same minimal precipitation, hinting at the onset of a drier period characterized by less frequent showers. This trend is reflective of the region's distinct seasonal changes, as heavier rains give way to intervals of dry weather leading into the more arid winter months.
In May, Santana de Parnaíba experiences a notable dip in humidity, averaging at 79%. This represents a shift from the consistently high humidity levels of the earlier months, where January and February both hover around 88%. As the year progresses, there's a gradual decrease, with April already showing signs of lower humidity at 84%. Following May, the trend continues downward, with June seeing a further drop to 77%, eventually leading into the drier months of late winter and early spring, where August plummets to 65%. This transition not only enhances the comfort of outdoor activities but also highlights the distinctive seasonal changes that characterize the region's weather throughout the year.
In May, Santana de Parnaíba experiences a notable shift in its UV Index. With a reading of 8, classified as very high, this month signals a slight decrease in intensity compared to the extreme levels seen from January to April, which consistently hovered around 11 to 16. Fortunately, this change provides an extended burn time of 15 minutes, allowing for more outdoor enjoyment without immediate risk of sunburn. However, caution is still advised as the UV rays remain potent. As the year progresses into June, expect further moderation, but in May, the sun still necessitates attention for safe sun exposure. Learn more about the UV trends for the region at Santana de Parnaiba UV Index.
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In May, Santana de Parnaíba enjoys a pleasant amount of sunshine, with 274 hours illuminating its vibrant streets and lush landscapes. This is a slight dip from the sun-soaked 307 hours of March but remains consistent with the overall sunny disposition of the region. As spring unfolds, May's sunshine aligns closely with the sunniest months preceding it, such as April's 286 hours. Looking ahead, the sun continues to shine brightly through the winter months, with July and September both boasting 292 hours of sunlight. This trend reflects a comfortable balance of light throughout the year, making Santana de Parnaíba a charming destination for basking in the glow of its natural beauty.
In Santana de Parnaíba, the month of May offers a 37% chance of sunny weather, which is slightly below the peak found in April (45%) and showcases a notable decline from the sunniest months of July (58%) and August (48%). This trend indicates that as the region transitions from the early dry season into the cooler months, residents and visitors can expect a blend of sunshine and cloudiness. Interestingly, while the likelihood of sunny days in May is comparable to earlier months like February (39%) and March (38%), it remains a favorable time for outdoor activities before the winter chill sets in. Overall, May presents a delightful opportunity to enjoy the beauty of Santana de Parnaíba under a mix of sun and clouds.
In Santana de Parnaíba, Brazil, daylight duration follows a distinct seasonal rhythm throughout the year. January boasts the longest days with 13 hours of daylight, creating an inviting ambiance for outdoor activities. As summer wanes, a gradual decline sets in, leading to 12 hours in both February and March. By April, daylight shrinks further to 11 hours, marking a transition to autumn. The trend continues into May and settles at 10 hours, where it remains consistent through June and July. As winter ends and spring approaches, daylight begins to reclaim its hours, nudging back up to 11 hours in August and September, before reaching 12 hours again in October. The year closes with a return to longer days, with 13 hours of daylight re-emerging in both November and December, inviting residents to bask in the sunshine as the festive season arrives. This cyclical dance of daylight not only underscores the natural beauty of the region but also shapes the lifestyle and activities of its residents.
In May, Santana de Parnaíba enjoys a gentle breeze, with average wind speeds reaching 2.6 m/s (6 mph). While this month sees a slight uptick from the calmer conditions of April, it remains consistent with January and February's breezy offerings. As the year progresses, the wind tends to pick up, transitioning into a more dynamic phase with August and September showcasing higher speeds averaging 3.3 m/s (7 mph) and 3.4 m/s (8 mph) respectively. This trend indicates a gradual escalation in wind activity as winter approaches, drawing in more invigorating breezes that enhance the region's vibrant atmosphere.
Weather in Santana de Parnaiba varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Santana de Parnaiba, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in May and January, notable differences emerge. In May, temperatures range from a minimum of 4°C (39°F) to a maximum of 30°C (86°F), with an average of 18°C (65°F). The month experiences relatively low precipitation of 46 mm (1.8 in) over just 5 days, alongside a humidity level of 79%. Conversely, January is warmer, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 34°C (93°F), and an average of 23°C (74°F). However, it also brings significantly more rain, totaling 175 mm (6.9 in) over 19 days, resulting in higher humidity at 88%. For further details on the January weather, you can check Santana de Parnaiba weather in January.
In comparing the weather between May and February, it's clear that February is significantly warmer and wetter. The temperatures in February range from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), with an average temperature of 22°C (73°F). In contrast, May's temperatures are milder, with a minimum of 4°C (39°F), averaging 18°C (65°F), and a maximum of 30°C (86°F). Rainfall also differs, with February receiving 159 mm (6.3 in) of precipitation over 17 days, compared to May's 46 mm (1.8 in) over just 5 days. Additionally, February's humidity level of 88% is slightly higher than May's 79%. For more details on February's weather, you can visit Santana de Parnaiba weather in February.
In comparing the weather of March and May, we see notable differences in both temperature and precipitation. March generally experiences warmer temperatures, with a minimum of 13°C (56°F) and an average of 22°C (73°F), peaking at 33°C (91°F). In contrast, May's temperatures are cooler, ranging from a minimum of 4°C (39°F) to an average of 18°C (65°F) and a maximum of 30°C (86°F). Additionally, March is considerably wetter, receiving 129 mm (5.1 in) of precipitation over 15 days, whereas May sees less rain with 46 mm (1.8 in) over just 5 days. The humidity levels also differ slightly, with March at 87% and May at 79%. For more detailed information about March weather, you can visit Santana de Parnaiba weather in March.
In comparing the weather of April and May, we see notable differences in temperature and precipitation patterns. April tends to be warmer overall, with an average temperature of 20°C (69°F) and a maximum reaching up to 31°C (88°F), while May experiences a slightly cooler average temperature of 18°C (65°F) and a maximum of 30°C (86°F). Additionally, April has higher humidity at 84% compared to May's 79% and also sees more precipitation, totaling 54 mm (2.1 in) over 7 days, whereas May has 46 mm (1.8 in) over just 5 days. For more insight into April's weather specifics, you can refer to Santana de Parnaiba weather in April.
In comparing the weather of May and June, both months exhibit similar average temperatures, with May experiencing a wider range from a minimum of 4°C (39°F) to a maximum of 30°C (86°F), while June has slightly warmer lows at 8°C (47°F) and a cooler high of 27°C (82°F). Both months receive the same amount of precipitation at 46 mm (1.8 in) across five days, indicating consistent rainfall patterns. Humidity levels are also comparable, with May at 79% and June slightly lower at 77%. For more detailed insights into June weather, visit Santana de Parnaiba weather in June.
When comparing the weather in May and July, May tends to be warmer with average temperatures around 18°C (65°F) and maximums reaching 30°C (86°F). In contrast, July sees slightly cooler temperatures, averaging 17°C (62°F) with maximums of 29°C (84°F). May also experiences more precipitation, accumulating 46 mm (1.8 in) over five days, whereas July has only 24 mm (0.9 in) over two days, reflecting a drier condition. Additionally, humidity levels are higher in May at 79%, compared to July's 72%. For more detailed weather insights, you can refer to Santana de Parnaiba weather in July.
When comparing the weather in May and August, May typically presents a wider range of temperatures, with minimums around 4°C (39°F) and maximums reaching up to 30°C (86°F), while August has a slightly higher minimum temperature of 6°C (42°F) and a similar maximum of 32°C (89°F). The average temperature in May is slightly warmer at 18°C (65°F) compared to August's average of 17°C (63°F). Precipitation levels also differ, with May experiencing 46 mm (1.8 in) over about 5 days, while August sees an increase to 55 mm (2.2 in) across 6 days. Additionally, humidity levels are higher in May at 79%, compared to a more comfortable 65% in August. For more specific information on August weather in this region, you can check this link: Santana de Parnaiba weather in August.
In comparing the weather between May and September, May tends to have slightly cooler temperatures, with minimums dropping to around 4°C (39°F) and maximums reaching up to 30°C (86°F). The average temperature is around 18°C (65°F) and it sees about 46 mm (1.8 in) of precipitation over approximately 5 days, accompanied by higher humidity at 79%. In contrast, September brings warmer conditions, with minimum temperatures at 8°C (47°F) and maximums soaring to 35°C (95°F), resulting in an average temperature of 20°C (69°F). Precipitation is a bit lower at 38 mm (1.5 in) over about 6 days, coupled with reduced humidity at 58%. For more detailed information about the weather in September, you can visit Santana de Parnaiba weather in September.
May and October showcase distinct weather patterns, with May presenting a cooler climate marked by temperatures ranging from a minimum of 4°C (39°F) to a maximum of 30°C (86°F) and an average of 18°C (65°F). This month experiences about 46 mm (1.8 in) of precipitation over five days and a higher humidity level of 79%. In contrast, October is significantly warmer, with temperatures varying from a minimum of 12°C (53°F) to a peak of 37°C (99°F) and an average of 21°C (70°F). However, it's also wetter, receiving 115 mm (4.5 in) of rain over 15 days and humidity levels dropping to 50%. For more detailed insights on specific weather in October, check out Santana de Parnaiba weather in October.
May and November offer distinct weather patterns that reflect the transition between seasons. In May, temperatures range from a cool 4°C (39°F) to a warm 30°C (86°F), with an average of 18°C (65°F), and the month sees around 46 mm (1.8 in) of rainfall over approximately 5 days, leading to a relatively humid atmosphere at 79%. In contrast, November experiences milder temperatures, starting at a minimum of 11°C (52°F) and peaking at 35°C (95°F), with an average temperature of 21°C (69°F). However, it is considerably wetter, receiving 119 mm (4.7 in) of precipitation across 14 days and a slightly lower humidity level of 75%. For a closer look at the weather specifics in November, you can visit Santana de Parnaiba weather in November.
In May, the weather in Santana de Parnaíba features a wider temperature range, with minimums around 4°C (39°F) and maximums reaching up to 30°C (86°F), resulting in an average temperature of 18°C (65°F). The month experiences relatively low precipitation at 46 mm (1.8 in) over five days, and humidity hovers around 79%. In contrast, December sees significantly warmer temperatures, with minimums of 12°C (54°F) and maximums soaring to 34°C (93°F), giving an average of 22°C (72°F). However, it also brings much higher rainfall, totaling 149 mm (5.9 in) across 20 days and maintaining a similarly high humidity level of 80%. For a detailed look at December weather, you can check Santana de Parnaiba weather in December.
As May unfolds in Santana de Parnaíba, the weather presents a delightful transition into the cooler months, characterized by pleasant temperatures and moderate rainfall. Unlike the hotter summer months, this period offers a refreshing average temperature of 18°C (65°F), while still allowing for the peaks of 30°C (86°F) during the day. Visitors will notice a significant drop in nighttime temperatures, providing a welcome respite from the summer heat. With an average humidity of 79% and a total of 46 mm (1.8 in) of precipitation over about five days, May tends to be more refreshing, paving the way for vibrant landscapes and a comfortable atmosphere. For a comprehensive overview of Santanada de Parnaíba's climate, visit Santana de Parnaiba Climate.