Last updated: August 21, 2025
In Porto Belo, Brazil, May presents a warm and humid climate, with average temperatures around 20°C (68°F), peaking at a maximum of 30°C (86°F) and dipping to a minimum of 10°C (50°F). Despite the comfortable temperatures, visitors should prepare for precipitation, as May typically sees 103 mm (4.1 in) of rain spread over about 13 days. With humidity levels soaring at 86%, the lush surroundings of Porto Belo thrive, offering a vibrant backdrop for outdoor activities amid the fresh, tropical atmosphere.
In May, Porto Belo, Brazil, experiences a noticeable shift in temperatures as the warm Brazilian summer gives way to milder conditions. The minimum temperature drops to a cool 10°C (50°F), while the average hovers around a comfortable 20°C (68°F). Although daytime highs can still reach up to 30°C (86°F), the overall ambiance is more temperate compared to the sizzling earlier months. This transitional phase invites visitors to enjoy outdoor activities without the intense heat, making May a delightful time to explore Porto Belo’s beautiful landscapes and vibrant culture. As the month progresses, temperatures continue their downward trend, hinting at the cooler days to come.
In May, Porto Belo enjoys a moderate precipitation level of 103 mm (4.1 in), which falls over an average of 13 days. This month marks a distinct shift from the heavier rains of earlier months like January and February, where totals reached 172 mm and 144 mm respectively. Compared to the significantly drier months that follow, such as July with only 45 mm (1.8 in), May stands out as a transitional period. The gradual decline in rainfall from the cumulative highs of earlier months hints at the onset of winter, offering a balanced climate for those enjoying outdoor activities. Overall, the pattern suggests a vibrant yet temperate environment, setting the stage for the drier conditions of the upcoming winter months.
In May, Porto Belo experiences a consistent humidity level of 86%, maintaining the high moisture trend established in earlier months like January and April. This level of humidity, reminiscent of the preceding summer months, underscores the region's tropical coastal climate, where air feels heavy and lush. As the year progresses, humidity generally begins to decline, culminating in the driest month of August at 79%. However, the return to higher humidity levels towards the end of the year, peaking again in November and December, illustrates a cyclical pattern of moisture that characterizes Porto Belo, making it a humid paradise throughout much of the year.
As May arrives in Porto Belo, Brazil, residents and visitors can expect a moderate UV Index of 7, signaling a shift from the extreme levels seen earlier in the year. The burn time increases to 25 minutes, allowing for a more leisurely outdoor experience compared to the brisk 10-minute burn times of January through April. This trend highlights a gradual easing of the sun's intensity, yet caution is still advised as UV rays remain high. Following this, the UV Index decreases further in June and July, dropping to 5, indicating a more comfortable window for sun exposure. For more detailed information on UV levels throughout the year, check out the Porto Belo UV Index.
UV Risk Categories
May in Porto Belo, Brazil, offers a delightful blend of sunny days, with an impressive 253 hours of sunshine. This month marks a slight dip from the vibrant sunshine experienced in the earlier months of the year, particularly February and March, which bask in over 300 hours. However, the warmth of May still contributes to its charm, as it transitions into the cooler months of winter. Notably, while the daylight hours begin to wane, the overall trend throughout the year shows that even the darker months seldom dip below 228 hours, with November and December standing out as peak months with their remarkable 314 and 340 hours, respectively. This consistency of sunlight, even during the later months, keeps Porto Belo a bright spot in Brazil’s coastal landscape.
As May rolls into Porto Belo, Brazil, the likelihood of sunny weather significantly increases, with the chance of sunshine reaching 52%. This marks a notable rise compared to the preceding months of January and March, where sunny days were less than a third of the time. Following the higher probabilities observed in April and June—both at 49% and 36% respectively—May emerges as a promising time for outdoor activities, especially when contrasted with the sunnier months of July at 57%. Overall, May stands out as a delightful bridge to the sunnier days ahead, inviting residents and visitors alike to bask in its moderate warmth and vibrant atmosphere.
In Porto Belo, Brazil, daylight duration follows a captivating seasonal rhythm that reflects the changing moods of the year. January kicks off with an abundance of 13 hours of sunlight, gradually tapering to 12 hours in February and maintaining this balance through March. As April arrives, daylight dips to 11 hours, signaling the shift towards winter. The months of May, June, and July each offer a consistent 10 hours of daylight, creating a cozy atmosphere perfect for indoor pursuits and evening gatherings. With the advent of August, daylight begins its slow resurgence, reaching 11 hours once more. This upward trend continues into September and October, where daylight returns to 12 hours. As the year closes, November and December once again bask in 13 hours of light, reminding us of the vibrant energy that characterizes Porto Belo's summer months. The cycle of daylight not only marks the passage of time but also beautifully mirrors the region's climate and lifestyle shifts throughout the year.
In May, Porto Belo experiences a gentle breeze with an average wind speed of 3.1 m/s (7 mph), continuing the pattern of mild winds that characterizes the early months of the year. Although this marks a slight decrease from April's 3.5 m/s (8 mph), May's conditions remain comfortable, perfectly complementing the beautiful coastal scenery. The wind tends to pick up again in June and October, where average speeds range from 3.4 m/s to 3.9 m/s, hinting at a subtle seasonal shift that influences both the climate and local activities. Overall, May serves as a delightful transition in Porto Belo, embodying tranquil yet refreshing conditions perfect for outdoor exploration.
Weather in Porto Belo varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Porto Belo, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in May and January, we see notable differences in temperature and precipitation patterns. May offers a milder climate, with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 30°C (86°F). In contrast, January boasts warmer temperatures, with averages reaching from a minimum of 19°C (67°F) to a maximum of 35°C (96°F). Additionally, January experiences more precipitation, amounting to 172 mm (6.8 in) over 18 days, compared to May's 103 mm (4.1 in) across 13 days. Despite these differences, both months share a high humidity level of 86%. For more specific details, you can check Porto Belo weather in January.
When comparing the weather in May and February, notable differences emerge. May typically has milder temperatures, with a minimum of 10°C (50°F) and an average of 20°C (68°F), whereas February experiences warmer conditions, with a minimum of 17°C (63°F) and an average of 25°C (77°F). Precipitation is also more substantial in February, totaling 144 mm (5.7 in) over 16 days, compared to May's 103 mm (4.1 in) spread across 13 days. However, humidity levels are quite similar, with May at 86% and February slightly lower at 83%. For those interested in more specific details, you can check Porto Belo weather in February.
When comparing the weather between March and May, it's clear that March tends to be warmer overall, with average temperatures hovering around 24°C (76°F) and highs reaching up to 32°C (91°F). In contrast, May features a cooler average of 20°C (68°F) and maximum temperatures peaking at 30°C (86°F). Additionally, March experiences higher rainfall with 134 mm (5.3 in) over 21 days, compared to May's 103 mm (4.1 in) over 13 days. Both months exhibit high humidity, but May is slightly more humid at 86% compared to March's 85%. For a detailed look at March weather in Porto Belo, you can check Porto Belo weather in March.
When comparing the weather in April and May, we see some notable differences. In May, temperatures range from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), with an average of 20°C (68°F). In contrast, April has a slightly warmer range, with minimum temperatures of 13°C (57°F) and an average of 22°C (72°F). While both months experience similar maximum temperatures of 30°C (87°F), the precipitation levels shifted notably; May sees 103 mm (4.1 in) of rain over 13 days, compared to April's 80 mm (3.1 in) over 14 days. Humidity levels are quite similar, with May at 86% and April slightly lower at 85%. For more detailed information, you can check Porto Belo weather in April.
In May, the weather typically features a minimum temperature of 10°C (50°F) and warms up to an average of 20°C (68°F), with a maximum temperature reaching 30°C (86°F). Although May experiences 103 mm (4.1 in) of precipitation over 13 days, the humidity tends to be relatively high at 86%.
In contrast, June brings slightly cooler conditions, with a minimum of 8°C (46°F) and an average temperature of 18°C (65°F) peaking at 28°C (83°F). The month sees a bit more rainfall at 116 mm (4.6 in) over 11 days, while the humidity remains comparable at 85%. To learn more about June weather specifically, check out Porto Belo weather in June.
In May, the weather is notably warmer with average temperatures reaching 20°C (68°F) and a maximum of 30°C (86°F), while July experiences cooler conditions with an average of 17°C (62°F) and a maximum of 27°C (81°F). May also sees higher humidity levels at 86% and more precipitation, averaging 103 mm (4.1 in) over 13 days, compared to July's 45 mm (1.8 in) spread over just 6 days. This makes May feel more humid and wetter overall, while July presents a drier and cooler climate. For more specific insights into the weather during this summer month, check out Porto Belo weather in July.
May and August present distinct weather patterns. In May, temperatures range from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), with an average of 20°C (68°F) and significant humidity at 86%. The month also sees considerable rainfall, totaling 103 mm (4.1 in) over approximately 13 days. In contrast, August is cooler, featuring temperatures that range from a minimum of 8°C (46°F) to a maximum of 27°C (80°F), with an average of 17°C (63°F). Precipitation is lighter in August, amounting to 63 mm (2.5 in) over about 9 days, and humidity decreases to 79%. For more details on weather specifics during this month, you can check Porto Belo weather in August.
In comparing the weather between May and September, one can observe notable differences. May experiences a broader temperature range, with minimums of 10°C (50°F) rising to maximums of 30°C (86°F) and an average of 20°C (68°F). In contrast, September's temperatures are slightly milder, with minimums of 12°C (53°F), averages of 19°C (67°F), and maximums reaching 27°C (81°F). Precipitation is also more prominent in May, totaling 103 mm (4.1 in) over approximately 13 days, compared to September’s 85 mm (3.3 in) across 12 days. Humidity levels are relatively high in both months, but May's 86% slightly outpaces September's 82%. For more specific insights into September's weather patterns, check out Porto Belo weather in September.
May and October offer distinct weather experiences, with May featuring a range of temperatures from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), and an average temperature of 20°C (68°F). This month sees notable precipitation, averaging 103 mm (4.1 in) over about 13 days, coupled with a high humidity level of 86%. In contrast, October presents slightly warmer conditions, with temperatures ranging from a minimum of 13°C (57°F) to a maximum of 31°C (89°F) and an average of 21°C (70°F). However, it also has increased rainfall, totaling 127 mm (5.0 in) over 16 days, and slightly lower humidity at 82%. For more details on October weather, you can check Porto Belo weather in October.
May and November offer distinct yet pleasantly warm weather conditions. In May, temperatures range from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), with an average of 20°C (68°F). The month sees about 103 mm (4.1 in) of precipitation over 13 days, maintaining a high humidity level of 86%. In contrast, November experiences slightly higher temperatures, with a minimum of 14°C (57°F) and a maximum of 31°C (88°F), averaging 22°C (72°F). Precipitation is a bit lower at 98 mm (3.9 in), spread out over 15 days, but humidity remains consistent at 86%. For more details on November weather, check out Porto Belo weather in November.
In May, the weather is characterized by moderate temperatures, with a minimum of 10°C (50°F), an average of 20°C (68°F), and a maximum reaching 30°C (86°F). Precipitation is relatively high, totaling 103 mm (4.1 in) over 13 days, accompanied by a high humidity level of 86%. In contrast, December brings warmer conditions, featuring a minimum temperature of 16°C (61°F), an average of 24°C (75°F), and a peak of 33°C (92°F). The month experiences even more precipitation at 144 mm (5.7 in) over 17 days, with humidity slightly higher at 88%. Overall, December offers a warmer and wetter climate compared to the milder, but drier, conditions of May. For more details, check Porto Belo weather in December.
As May unfolds in Porto Belo, the transition to cooler temperatures becomes evident, with average highs around 20°C (68°F) contrasting sharply with the warmer months. Although the city enjoys some sunny days, it also experiences a significant amount of rainfall, totaling about 103 mm over approximately 13 days, which elevates the humidity levels to an average of 86%. This blend of mild temperatures and increased precipitation marks a shift from the drier, hotter months, making May a unique time to experience Porto Belo's lush scenery. For a deeper dive into what to expect throughout the year, check out the comprehensive overview at Porto Belo Climate.