Last updated: August 21, 2025
May in Belém, Brazil offers a warm tropical climate, marked by maximum temperatures reaching 31°C (89°F) and an average of 25°C (77°F). The month is characterized by high humidity levels around 90%, creating a sultry atmosphere. Rainfall is notable, with 104 mm (4.1 in) of precipitation spread over 18 days, adding to the lush greenery that envelops the city. This blend of warmth and moisture creates an invigorating setting for both locals and visitors, making late spring a unique time to experience the rich culture and vibrant landscapes of Belém.
In May, temperatures in Belém, Brazil begin to shift slightly as the rainy season approaches. The average temperature dips to 25°C (77°F), with a comfortable minimum of 20°C (68°F) during the night, making it a pleasant time for evening strolls. Days remain warm with a maximum of 31°C (89°F), but this is a slight reprieve from the higher peaks seen earlier in the year. Compared to the previous months, where temperatures consistently hovered around 26°C (79°F) for the average, May introduces a subtle coolness, hinting at the transition to cooler weather ahead. This makes it an ideal month for visitors to experience Belém’s vibrant culture in a slightly milder climate.
In May, Belem experiences a notable peak in precipitation, with 104 mm (4.1 in) of rainfall recorded over 18 days. This level is consistent with the region's trend of increased rainfall from the beginning of the year, particularly following the heavier downpours seen in March (108 mm) and April (99 mm). The month of May showcases the transition towards the drier season, as precipitation tapers off in the following months. The steady rainfall during May serves to nourish the lush vegetation that characterizes this vibrant part of Brazil, marking it as a significant time for both the natural ecosystem and agricultural activities.
May marks a peak in humidity levels in Belém, Brazil, reaching 90%, a significant rise that reflects the transition into the wet season. This increase follows a steady pattern seen since January, where humidity begins at 86% and gradually climbs through the months, hovering around 89% in the preceding months of March and April. As the year progresses towards the drier winter months, humidity noticeably dips, dropping to 86% by June and continuing to decline, reaching a low of 68% in October. This progression highlights Belém's tropical climate, characterized by high humidity levels that create a warm and lush environment, particularly during the vibrant month of May.
In May, Belém, Brazil, experiences a UV Index of 12, categorizing it as extreme and maintaining a consistent burn time of just 10 minutes. This slight decrease from the higher indices seen in the earlier months does not lessen the urgency to protect your skin. With a UV Index peaking at 15 in March and consistently remaining above 11 from June onward, it’s clear that UV exposure remains a significant concern throughout the year. As you enjoy the vibrant surroundings of Belém, always stay sunsmart. For more details on UV levels and safety tips, visit Belem UV Index.
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May in Belem, Brazil, shines with 319 hours of sunshine, highlighting a delightful transition from the earlier months. As the rainy season gives way to drier days, May benefits from increased daylight hours, fitting neatly between April's 307 hours and June's 309 hours. This month marks a peak in springtime brightness, bridging the gap between the cooler autumn months and the blazing sun of mid-year. The gradual upward trend beginning in March (333 hours) hints at a vibrant prelude to the sunnier months ahead, culminating in October, which boasts 347 hours. Visitors and locals alike can relish the warmth that May offers, making it a fantastic time to explore the lush landscapes and rich culture of Belem under a glorious sun.
In Belem, Brazil, the likelihood of sunny weather in May stands at 37%, a noticeable uptick compared to the preceding months, particularly April's 30%. This trend indicates that as the dry season approaches, residents and visitors alike can expect a greater chance of clear skies and sunshine. Remarkably, the likelihood of sunny days continues to rise into the early winter months, reaching 45% in both June and July. In contrast, the probability of sunny weather dips during the earlier months of the year, with January at just 29% and February slightly better at 33%. This gradual increase suggests that late autumn and early winter in Belem offer enhanced opportunities to enjoy the sun, making May an appealing time for outdoor activities and exploration.
In Belém, Brazil, daylight duration showcases a consistent rhythm throughout the year, predominantly influenced by its tropical climate. From January to March, the sun graces the city with a steady 12 hours of daylight, inviting vibrant activities under the sun. As April rolls in, daylight dips slightly to 11 hours and maintains this shorter length through May, June, July, and August. This modest reduction hints at a subtle seasonal shift, before daylight begins its gradual return in September and climbing back to 12 hours by October. This trend continues into November and December, creating a reassuring predictability that echoes the tropical charm of Belém throughout the year.
In Belém, Brazil, the winds of May bring a refreshing shift, with an average speed of 3.2 m/s (7 mph), mirroring January's breeziness. As the year progresses, wind speeds gradually increase, peaking in August at 4.4 m/s (10 mph), which suggests a notable rise in airflow as the dry season approaches. Interestingly, following May's mild gusts, a consistent upward trend is observed, culminating in the vibrant breezes of July and August, perfect for outdoor activities and inviting exploration. This gentle but steady wind flow creates a harmonious backdrop against the lush landscapes, enhancing the charm of Belém as it transitions into the more blustery months ahead.
Weather in Belem varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Belem, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present distinct weather characteristics, with May typically being slightly cooler yet more humid than January. In May, temperatures range from a minimum of 20°C (68°F) to a maximum of 31°C (89°F), accompanied by considerable precipitation of 104 mm (4.1 in) over 18 days. In contrast, January sees slightly warmer temperatures, with a minimum of 21°C (70°F) and a maximum of 33°C (92°F), but it experiences significantly less rainfall at 41 mm (1.6 in) over 13 days. Humidity levels in May peak at 90%, compared to January's 86%, contributing to a muggy feel in the early summer month. For a more detailed overview, you can check Belem weather in January.
May and February offer warm temperatures, but there are some notable differences in their weather patterns. In May, the minimum temperature hovers around 20°C (68°F), while the average reaches 25°C (77°F) and can climb to a maximum of 31°C (89°F). The month experiences 104 mm (4.1 in) of precipitation over 18 days, accompanied by high humidity levels at 90%.
In contrast, February tends to be slightly warmer with a minimum of 21°C (70°F), an average temperature of 26°C (80°F), and a maximum of 33°C (92°F). It also sees less rainfall, with 83 mm (3.3 in) over 17 days and a humidity level of 89%. For a more detailed look at weather specifics, check out Belem weather in February.
In comparing the weather conditions of May and March, we see some notable differences. March typically experiences slightly higher temperatures, with a minimum of 21°C (71°F) and a maximum of 33°C (92°F), compared to May's minimum of 20°C (68°F) and maximum of 31°C (89°F). Additionally, while both months receive significant rainfall, March has a bit more precipitation, measuring 108 mm (4.2 in) over 22 days, versus May's 104 mm (4.1 in) over 18 days. Humidity levels are quite similar, with May at 90% and March at 89%. For more detailed insights, you can check Belem weather in March.
In comparing the weather between April and May, we see some notable differences. April tends to be slightly warmer with a minimum temperature of 21°C (69°F) and an average of 26°C (78°F), reaching a maximum of 32°C (91°F). In contrast, May cools down a bit, featuring a minimum temperature of 20°C (68°F) and an average of 25°C (77°F), with a maximum of 31°C (89°F). Precipitation levels are quite similar, with May experiencing 104 mm (4.1 in) over 18 days, while April records 99 mm (3.9 in) over a slightly longer duration of 22 days. Humidity remains high in both months, but May has a marginally higher humidity level at 90% compared to April’s 89%. For a closer look at April's weather, you can check the details here: Belem weather in April.
May and June show some notable differences in weather patterns. In May, temperatures range from a minimum of 20°C (68°F) to a maximum of 31°C (89°F), with an average of 25°C (77°F). This month is characterized by higher precipitation, recording 104 mm (4.1 inches) over 18 days, and a humidity level of 90%. In contrast, June experiences slightly cooler temperatures, with a minimum of 19°C (66°F), an average of 24°C (76°F), and a maximum of 30°C (87°F). The rainfall significantly decreases to 56 mm (2.2 inches) over 15 days, and humidity also drops to 86%. For more detailed information, you can check Belem weather in June.
In comparing the weather between May and July, May tends to be warmer with average temperatures reaching 25°C (77°F) and a maximum of 31°C (89°F), while July's average is cooler at 23°C (74°F) with a maximum of 30°C (86°F). Additionally, May experiences higher humidity levels at 90%, whereas July's humidity is somewhat lower at 80%. Rainfall is more pronounced in May, with 104 mm (4.1 in) of precipitation over 18 days, compared to July's 71 mm (2.8 in) over 15 days. For more detailed insights, you can check Belem weather in July.
In comparing the weather between May and August, one can observe a clear transition from the warmer, wetter conditions of late spring to the cooler, drier atmosphere of late summer. May experiences minimum temperatures around 20°C (68°F) and maximums reaching up to 31°C (89°F), accompanied by considerable rainfall of 104 mm (4.1 in) over 18 days and high humidity levels at 90%. In contrast, August sees slightly lower temperatures with a minimum of 18°C (64°F) and a maximum of 30°C (86°F). During this month, rainfall is significantly reduced to just 30 mm (1.2 in) across 10 days, and humidity drops to a more comfortable 77%. For a detailed look at the weather in this latter month, check out Belem weather in August.
In May, the weather tends to be warmer and more humid, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 31°C (89°F) and an average of 25°C (77°F). The month sees significant rainfall, accumulating 104 mm (4.1 in) over approximately 18 days, contributing to a high humidity level of 90%. In contrast, September features slightly cooler temperatures, with a minimum of 19°C (66°F), an average of 24°C (76°F), and a maximum of 32°C (89°F). Additionally, it experiences much less precipitation at 29 mm (1.1 in) and fewer rainy days at 12, resulting in lower humidity levels at 72%. This makes September a drier and more comfortable month overall. For more detailed information, check out Belem weather in September.
In May, temperatures range from a minimum of 20°C (68°F) to a maximum of 31°C (89°F), with an average of 25°C (77°F). This month is characterized by high humidity at 90% and significant rainfall, totaling 104 mm (4.1 in) over 18 days. In contrast, October offers similar average temperatures of 25°C (78°F) but slightly lower extremes, with a minimum of 19°C (67°F) and a maximum of 32°C (90°F). October is much drier, experiencing only 25 mm (1.0 in) of precipitation across 10 days, and lower humidity at 68%. For more detailed information, visit Belem weather in October.
In May, temperatures tend to be slightly lower, with averages around 25°C (77°F) and a maximum of 31°C (89°F). During this month, the region experiences significant rainfall, totaling 104 mm (4.1 in) over about 18 days, contributing to a high humidity level of 90%. In contrast, November offers warmer averages of 26°C (79°F) and peaks at 33°C (91°F), with much less rainfall of only 23 mm (0.9 in) spread over just 8 days. The humidity also drops to a more comfortable 66%. For a detailed look at the climate, check out Belem weather in November.
In May, the weather is characterized by warmer temperatures, with minimums around 20°C (68°F) and averages reaching 25°C (77°F), while maximums can soar to 31°C (89°F). There’s also considerable rainfall, totaling 104 mm (4.1 inches) over 18 days, contributing to high humidity levels of 90%. In contrast, December experiences slightly higher average temperatures, with a minimum of 20°C (67°F) and averages peaking at 26°C (79°F), but the maximums are a bit higher at 33°C (91°F). Rainfall is significantly less in December, at just 38 mm (1.5 inches) across 15 days, coupled with lower humidity levels at 70%. For more details on the climate, visit Belem weather in December.
In May, Belem experiences a unique blend of warmth and humidity, with temperatures averaging around 25°C (77°F) that offer a comfortable respite from the sweltering heat of the preceding months. While the maximum temperature can reach 31°C (89°F), the standout feature of this month is the increased rainfall, with 104 mm (4.1 in) spread across 18 days, making it markedly wetter compared to April. The high humidity level, peaking at 90%, adds to the tropical feel, transforming the landscape into a lush oasis. For those planning to visit, understanding the distinctive climate patterns of May can enhance your experience in this vibrant city. For more detailed insights, check out Belem Climate.