Last updated: August 21, 2025
In April, São Luís, Brazil experiences a warm tropical climate, with maximum temperatures reaching around 30°C (86°F) and an average of 27°C (80°F). The month is characterized by its high humidity, averaging a notable 92%, which contributes to the lush environment. However, it is also marked by significant rainfall, with a total of 469 mm (18.5 in) occurring over 29 days. This combination of warmth and frequent precipitation creates a vibrant atmosphere, making April a uniquely dynamic month in this coastal city.
In April, São Luís experiences a delightful warmth characterized by a minimum temperature of 24°C (76°F) and a comfortable average of 27°C (80°F). As the month progresses, temperatures rise slightly, peaking at a maximum of 30°C (86°F). This steady warmth mirrors the preceding months, with consistent averages and highs, while showcasing a subtle increase in daytime temperatures compared to March. The temperate climate during this time makes it an inviting period for visitors who wish to enjoy the vibrant culture and stunning landscapes of this Brazilian gem.
April in São Luís, Brazil, continues the trend of significant rainfall, with 469 mm (18.5 in) of precipitation recorded over 29 days. This month, while slightly lower in total rainfall compared to March's peak of 483 mm (19.0 in), still showcases the city's characteristic wet season. As the rains persist, the region's lush landscape thrives, but residents can expect intermittent showers that contribute to a humid atmosphere. Following April, precipitation gradually decreases, with May seeing a noteworthy drop to 298 mm (11.7 in), signaling the beginning of a transition towards drier months. The rainfall pattern highlights São Luís's dynamic climate, underpinning both its natural beauty and the practical challenges of living in such a rainy environment.
April in São Luís, Brazil, marks the peak of humidity, reaching a notable 92%. This increase comes after a steady rise from 89% in January and a consistent 90% through February and March. As the city transitions into the wetter months, the humidity begins to climb, enhancing the tropical ambiance. Following April, humidity dips to 89% in May, indicating a brief respite before the dry season sets in. Overall, the trend showcases a distinct pattern where the first four months of the year experience elevated moisture levels, culminating in April's peak before lower humidity levels prevail from May through August.
April in São Luís, Brazil, continues the trend of high solar intensity with a UV Index of 15, placing it firmly in the extreme exposure category. This signifies a burn time of just 10 minutes, urging residents and visitors to take precautions against sun exposure. Although the UV Index drops slightly from March's peak of 16, the overall pattern shows that throughout the first half of the year, the region consistently experiences intensely high UV levels, making sun safety a top priority. As you enjoy the vibrant outdoor culture of São Luís during this month, remember to protect your skin and stay informed. For detailed insights, check out Sao Luis UV Index.
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As April graces São Luís, Brazil, with its charm, the city basks in 247 hours of sunlight, a slight dip from the vibrant 259 hours of March but still a warm reminder of the approaching dry season. This period marks the transition where the sunshine begins to intensify, peaking in May with 293 hours, leading to a spectacular stretch of sun-drenched months from June to August, where residents enjoy over 300 hours of sunshine each month. The gradual rise in daylight hours not only paints the skies in brilliant hues but also heralds the bustling outdoor activities that define this lively coastal city. As the year progresses, São Luís captures the essence of sun and warmth, setting the stage for an unforgettable tropical experience.
In April, Sao Luis, Brazil, experiences a notable increase in sunny weather, with the chance of sunshine rising to 25%. This is a welcome change compared to earlier months, where the likelihood of sunny skies hovers lower, peaking at just 22% in February and dropping to a mere 11% in March. As the year progresses, the weather continues to favor sun lovers, with May seeing the probabilities climb further to 36%, setting the stage for sunnier days ahead. This upward trend not only promises a brighter April but also hints at a delightful transition into the more sun-drenched months of June and July, where chances soar to 51% and 54%, respectively. As such, April serves as a pivotal month, marking the shift toward a more radiant Brazilian fall.
In Sao Luis, Brazil, the daylight duration exhibits remarkable consistency throughout the year. April stands out with its 12 hours of daylight, aligning perfectly with the earlier months of January, February, and March. This uniformity suggests a stable climate that embraces longer days, particularly as the region transitions towards the wetter months of mid-year. Following April, daylight begins a gradual decline in May, with 11 hours of sunshine, but it rebounds back to 12 hours from August to November, before settling again into either 11 or 12 hours for the rest of the year. This rhythm of daylight highlights the charm of Sao Luis, where, regardless of the month, the sun generously lights up the sky, inviting both residents and visitors to bask in its glow.
As April arrives in São Luís, Brazil, the gentle breezes begin to transition into a more tranquil rhythm, with an average wind speed of 3.8 m/s (9 mph). This slight dip from March reflects the region's gradual shift towards the calmer winds of late autumn, as the fastest gusts of the year are yet to come. The winds remain relatively mild compared to the spring months, providing a pleasant and welcoming atmosphere. Interestingly, as the year progresses into May, a further drop in wind speed to 3.3 m/s (7 mph) is anticipated, hinting at the stillness of the approaching mid-year. This trend highlights a seasonal ebb and flow, where April serves as a bridge between the lively breezes of early months and the serene calm of the later season.
Weather in Sao Luis varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Sao Luis, focusing on differences in temperature, rainfall, humidity, and UV levels.
April weather in Sao Luis is characterized by slightly warmer temperatures and significantly higher precipitation compared to January. While both months feature a minimum temperature of around 24°C (75-76°F) and an average temperature of 27°C (80°F), April sees a maximum temperature of 30°C (86°F), compared to January's 29°C (85°F). Notably, April experiences a dramatic increase in rainfall, with 469 mm (18.5 in) over 29 days, compared to January's 217 mm (8.5 in) over 25 days. The humidity is also higher in April at 92%, compared to January's 89%. For more detailed insights, check Sao Luis weather in January.
April's weather in comparison to February shows slightly warmer temperatures, with minimums of 24°C in April compared to 23°C in February, and average highs reaching 30°C in April, just above February's maximum of 29°C. However, April experiences more precipitation, totaling 469 mm over 29 days, while February sees 427 mm across 27 days. Additionally, the humidity is slightly higher in April at 92%, compared to February's 90%. For a detailed look at February weather, you can check out Sao Luis weather in February.
In comparing the weather between March and April, both months exhibit similar warm temperatures, with April slightly edging out with an average temperature of 27°C (80°F) compared to March's average of 26°C (80°F). However, April experiences a marginally lower maximum temperature of 30°C (86°F) versus March's 29°C (85°F). Rainfall is significant in both months, with April seeing 469 mm (18.5 in) of precipitation over 29 days, while March recorded 483 mm (19.0 in) across 30 days. Interestingly, April has a slightly higher humidity level at 92%, compared to March's 90%. For a more detailed look at the weather in March, you can check Sao Luis weather in March.
April and May in Sao Luis exhibit similar temperature ranges, with both months experiencing minimums around 24°C (76°F), averages of 27°C (80-81°F), and maximums peaking at 30°C (86-87°F). However, April is noticeably wetter, receiving 469 mm (18.5 in) of precipitation over 29 days, compared to May’s 298 mm (11.7 in) across 27 days. The humidity also slightly decreases from April’s 92% to May’s 89%, indicating a marginally more comfortable atmosphere as the month progresses. For more details, check Sao Luis weather in May.
April and June in Sao Luis present notable differences in weather patterns. Both months experience similar minimum temperatures, averaging around 24°C (75-76°F), and a comfortable average temperature of approximately 27°C (80-81°F). However, June tends to be slightly warmer with a maximum temperature of 31°C (87°F) compared to April’s 30°C (86°F).
One of the most significant contrasts lies in precipitation; April witnesses heavy rainfall with 469 mm (18.5 in) over 29 days, while June sees a much lighter total of 161 mm (6.4 in) across 26 days. Additionally, humidity levels drop significantly in June to 79%, down from the exceedingly high 92% experienced in April. For more insights on Sao Luis weather, visit Sao Luis weather in June.
In comparing the weather between April and July, both months exhibit similar minimum and average temperatures, with April experiencing a slightly cooler maximum of 30°C (86°F) compared to July's max of 31°C (89°F). Notably, April is characterized by significantly higher precipitation, totaling 469 mm (18.5 in) over 29 days, while July sees a sharp decline with only 107 mm (4.2 in) over 22 days. Additionally, April's humidity level is notably higher at 92%, in contrast to July's more comfortable 64%. For a more detailed look, check out Sao Luis weather in July.
In April, the weather is characterized by a warm, tropical climate, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (86°F) and an average of 27°C (80°F). This month also sees significant rainfall, totaling 469 mm (18.5 in) over 29 days, contributing to a high humidity level of 92%. In contrast, August features similar minimum temperatures but slightly warmer maximums, reaching up to 31°C (88°F) on average. However, precipitation drops dramatically to just 37 mm (1.5 in) over 11 days, resulting in a much lower humidity of 55%. For more detailed information about the weather in August, visit Sao Luis weather in August.
April and September showcase contrasting weather patterns, particularly in terms of temperature, precipitation, and humidity. In April, temperatures generally range from a minimum of 24°C (76°F) to a maximum of 30°C (86°F), accompanied by high humidity levels at 92% and significant rainfall averaging 469 mm (18.5 in) over 29 days. In contrast, September offers a slightly warmer climate with temperatures ranging from 26°C (78°F) to 31°C (88°F), yet it experiences drastically reduced precipitation at only 21 mm (0.8 in) across 5 days and lower humidity at 51%. The stark differences in these two months highlight the transition from a very wet and humid April to a much drier and less humid September. For more details on September's weather, visit Sao Luis weather in September.
In April, the weather is characterized by consistently high temperatures, with minimums around 24°C (76°F) and maximums reaching up to 30°C (86°F). However, it is also marked by heavy rainfall, with an impressive 469 mm (18.5 in) of precipitation spread over 29 days, resulting in a markedly high humidity level of 92%. In contrast, October offers a slightly warmer minimum temperature of 25°C (78°F) and maintains an average high of 30°C (87°F), but comes with significantly drier conditions. With only 29 mm (1.1 in) of precipitation over just 8 days, the humidity drops to a much more comfortable 53%. For those looking to understand more about October weather in São Luis, you can check Sao Luis weather in October.
April and November in São Luís present quite different weather conditions. In April, temperatures range from a minimum of 24°C (76°F) to a maximum of 30°C (86°F), with an average temperature of 27°C (80°F). However, it’s also the wettest month, receiving a staggering 469 mm (18.5 in) of rainfall over 29 days and maintaining high humidity levels at 92%. In contrast, November features slightly warmer temperatures, with a minimum of 25°C (77°F) and an average of 28°C (82°F), yet it is much drier, recording only 73 mm (2.9 in) of precipitation over 12 days, accompanied by a more comfortable humidity level of 60%. For more details, check out the Sao Luis weather in November.
April and December in Sao Luis share similar temperature ranges, with both months featuring minimum temperatures around 24°C (75-76°F), average temperatures of 27°C (80-82°F), and maximum temperatures reaching up to 30°C (86-87°F). However, the weather characteristics differ significantly when it comes to precipitation and humidity. April is notably wetter, with an impressive 469 mm (18.5 in) of rain falling over 29 days, resulting in high humidity levels of 92%. In contrast, December experiences much lighter rainfall, totaling only 117 mm (4.6 in) over 23 days, with humidity dropping to 78%. This makes December a drier and less humid month compared to the rain-soaked April. For more detailed insights into December's weather, you can check Sao Luis weather in December.
April in São Luís brings a unique blend of warmth and humidity that sets it apart from other months. With temperatures consistently hovering around a pleasant 27°C (80°F), this month feels both tropical and invigorating. However, April is also notable for its high precipitation, experiencing nearly 30 rainy days that contribute to an impressive total of 469 mm (18.5 in) of rainfall. This means that while you can expect warm days, you should also be prepared for frequent showers, which heighten the humidity levels to a remarkable 92%. If you're keen on understanding how these weather patterns influence your travel plans and experiences, dive deeper into the nuances by visiting Sao Luis Climate.