Last updated: August 21, 2025
In October, São Luís, Brazil experiences a warm tropical climate characterized by an average temperature of 27°C (82°F), with peaks reaching a maximum of 30°C (87°F). The month sees a minimum temperature of 25°C (78°F), contributing to the city's inviting atmosphere. However, a humidity level of 53% combined with an average precipitation of 29 mm (1.1 in) over 8 days brings occasional rainfall, refreshing the landscape. Whether you’re enjoying the vibrant culture or exploring stunning beaches, October offers a delightful balance of sun and occasional showers for visitors to savor.
In October, Sao Luis, Brazil continues to experience its warm tropical climate, with temperatures reflecting a slight rise as the month progresses. The minimum temperature settles around 25°C (78°F), offering a warm start to the day. The average temperature remains consistent at 27°C (82°F), while afternoons can heat up to a pleasant 30°C (87°F), making it an ideal time for beach visits and outdoor activities. This month's figures highlight a subtle yet noticeable shift from the cooler early months of the year, reinforcing Sao Luis as a destination for those seeking warmth and sunshine as the year begins to wind down.
In October, São Luís experiences a significant shift in its precipitation patterns, with rainfall dropping to 29 mm (1.1 in) over just 8 days. This marks a noticeable decrease from the intense downpours of the previous months, such as March, which sees nearly 483 mm (19.0 in) across a full 30 days. After a prolonged wet season that typically peaks between February and April, the beginning of dry conditions becomes evident as lighter, sporadic showers give way to clearer skies. As the city transitions towards the latter part of the year, the rainfall continues to taper off, foreshadowing a drier November ahead.
In October, Sao Luis, Brazil experiences a notable drop in humidity, registering at around 53%. This marks a continuation of the trend observed since August, when humidity levels fell to a comfortable 55%, and further decreased in September to an even drier 51%. As the year progresses from the sweltering peak months of April and May, which boast humidity levels upwards of 89%, the October atmosphere feels much more refreshing. The shift in humidity signifies the transition to a more temperate climate, allowing residents and visitors to enjoy the vibrant city without the oppressive moisture of the earlier months.
As October arrives in São Luís, Brazil, the UV Index remains at a noteworthy 13, categorizing it as extreme and maintaining a consistent burn time of just 10 minutes. This trend reflects the overall high UV levels experienced throughout the year, with January peaking at 16 in March before gradually tapering to 12 in June. However, from July onwards, the UV Index stabilizes around the 13 mark, indicating that the need for sun protection is a year-round concern here. Whether you’re soaking up the sun or enjoying outdoor activities, it's crucial to stay vigilant against UV exposure. For more detailed information, check out the Sao Luis UV Index.
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October shines brightly in São Luís, Brazil, boasting an impressive 350 hours of sunshine. This month continues the trend of increasing daylight that peaks in the mid-year, with July and August offering the most sun at 343 and 349 hours, respectively. Following the peak, September still delivers a generous 338 hours, but it’s October that captures the attention with its vibrant warmth. As the year progresses into the final quarter, sunshine hours begin to taper off slightly, yet October stands out as a golden opportunity for sun-seekers before the shorter days of November, which still retain a respectable 329 hours. This consistent abundance of sunshine makes October a livelier and warmer month, perfect for enjoying outdoor activities and basking in the coastal beauty of this enchanting Brazilian city.
In Sao Luis, Brazil, the likelihood of sunny weather shows a remarkable upward trend from the start of the year, peaking during the late winter and early spring months. After a steady climb through June and July, where the chances of sun reach a notable 54%, October maintains a strong 52% likelihood of clear skies, making it an appealing time for outdoor activities. This slight decline from September's 56% suggests a transition towards the wetter months of late fall, but the weather remains predominantly favorable. As the year progresses, October stands out as a robust option for sun seekers, promising a delightful balance of warmth and sunshine amid the changing seasons.
In Sao Luis, Brazil, the rhythm of daylight unfolds in a fascinating pattern throughout the year. From January to April, residents and visitors alike enjoy a consistent 12 hours of daylight, basking in harmony with the sun. As the year progresses into May, June, and July, daylight gently recedes to 11 hours, hinting at the subtle shifts of the seasons. However, this dip is short-lived, as August and September usher back 12 hours of sunlight, marking a return to brightness. This trend continues into October, where the daylight once again stabilizes at 12 hours, consistent with previous months, and carries through to December. Such predictability in daylight duration enriches the tropical charm of Sao Luis, making it a delightful destination year-round.
In October, São Luís experiences a delightful uptick in wind activity, with average wind speeds reaching 5.7 m/s (13 mph). This represents a notable increase from the previous months, particularly following a breezy September that clocked in at 6.0 m/s (13 mph). As the year transitions into its final quarter, the winds seem to gain momentum, setting the stage for more invigorating breezes that can be felt throughout the city. The consistent rise in wind speed from the calmer early months—like January's gentle 5.0 m/s (11 mph)—highlights a shift towards the more invigorating conditions typical of late spring in this enchanting coastal locale.
Weather in Sao Luis varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Sao Luis, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of October and January, it’s clear that both months experience warm temperatures, with average highs around 27°C (82°F) in October and 27°C (80°F) in January. However, January tends to be more humid, with humidity levels reaching 89% compared to October’s 53%. Additionally, January sees significantly more rainfall, with 217 mm (8.5 in) of precipitation over 25 days, in stark contrast to October's 29 mm (1.1 in) over just 8 days. For a more detailed look at January conditions, check out Sao Luis weather in January.
In comparing the weather of October and February, one can see clear contrasts in temperature and precipitation patterns. October generally enjoys warmer temperatures, with a minimum of 25°C (78°F) and an average of 27°C (82°F), while February is slightly cooler, with a minimum of 23°C (74°F). However, February sees significantly more rainfall, averaging 427 mm (16.8 in) over 27 days, compared to October's 29 mm (1.1 in) over just 8 days. Additionally, February's humidity is much higher at 90%, whereas October's humidity is a more comfortable 53%. For more detailed information on February weather, visit Sao Luis weather in February.
In comparing the weather between October and March, it’s clear that October tends to be drier and warmer. October boasts an average temperature of 27°C (82°F) with a maximum of 30°C (87°F), while March has slightly cooler temperatures, averaging 26°C (80°F) with a peak at 29°C (85°F). However, March experiences significantly higher precipitation, with 483 mm (19.0 in) of rain over 30 days compared to October's 29 mm (1.1 in) over just 8 days. Additionally, the humidity in March is much higher at 90%, compared to 53% in October, making the latter more comfortable overall. For more detailed weather insights, you can check Sao Luis weather in March.
In comparing the weather of October and April, both months experience similar average temperatures, ranging around 27°C (81°F), with daily highs peaking at about 30°C (86-87°F). However, October offers a much drier climate, with only 29 mm (1.1 in) of precipitation over 8 days, contributing to a moderate humidity level of 53%. In stark contrast, April is characterized by significantly higher rainfall, accumulating 469 mm (18.5 in) across 29 days, leading to a much more humid environment with levels reaching 92%. This stark difference highlights the seasonal shift from the drier, more comfortable conditions of October to the wet and humid atmosphere typical of April. For more details about April weather, you can visit Sao Luis weather in April.
When comparing the weather in October and May, both months exhibit similar average temperatures, with October ranging from a minimum of 25°C (78°F) to a maximum of 30°C (87°F), and May showing a minimum of 24°C (75°F) to the same maximum. However, the month of May is considerably wetter, receiving 298 mm (11.7 in) of precipitation over 27 days, whereas October has significantly less rain, with just 29 mm (1.1 in) spread over 8 days. Additionally, the humidity levels are notably higher in May at 89%, compared to October's more comfortable 53%. For more insights on May weather specifics, please refer to Sao Luis weather in May.
October weather in Sao Luis is characterized by warm temperatures, with a minimum of 25°C (78°F), averaging around 27°C (82°F), and a maximum of 30°C (87°F). The month sees relatively low precipitation at 29 mm (1.1 in), spread over 8 days, and a comfortable humidity level of 53%. In contrast, June experiences similar average temperatures, ranging from a minimum of 24°C (75°F) to a maximum of 31°C (87°F). However, it is significantly wetter, with a total precipitation of 161 mm (6.4 in) over 26 days, leading to higher humidity levels at 79%. For more detailed insights into June weather, visit Sao Luis weather in June.
In comparing the weather of October and July, October offers slightly warmer temperatures with a minimum of 25°C (78°F) and a maximum of 30°C (87°F), compared to July's minimum of 24°C (75°F) and maximum of 31°C (89°F). Both months have similar average temperatures of around 27°C (81°F), but October sees significantly less rainfall, with only 29 mm (1.1 in) over 8 days, while July experiences much heavier precipitation at 107 mm (4.2 in) over 22 days. Additionally, October's humidity level is lower at 53%, making it feel less muggy than July, which has a higher humidity of 64%. For more detailed information, you can check Sao Luis weather in July.
In comparing the weather between October and August, both months feature similar average temperatures, with October experiencing a minimum of 25°C (78°F) and a maximum of 30°C (87°F), while August has slightly cooler temperatures with a minimum of 24°C (76°F) and a maximum of 31°C (88°F). October sees a decrease in both precipitation and the number of rainy days, with 29 mm (1.1 in) of rainfall over 8 days, compared to August's 37 mm (1.5 in) over 11 days. The humidity is also marginally lower in October at 53%, compared to August’s 55%. For more detailed insights into the weather patterns, check out Sao Luis weather in August.
In comparing the weather between September and October, both months feature a similar average temperature of 27°C (82°F), with October experiencing a slightly lower maximum temperature of 30°C (87°F) compared to September's 31°C (88°F). Notably, October has slightly higher humidity at 53%, while September's humidity is at 51%. Precipitation in October increases to 29 mm (1.1 in) over 8 days, contrasting with September's 21 mm (0.8 in) over just 5 days. For more detailed insights, you can check Sao Luis weather in September.
October and November in Sao Luis both feature warm temperatures, with October seeing a minimum of 25°C (78°F) and an average of 27°C (82°F), while November maintains a similar minimum of 25°C (77°F) but nudges the average up slightly to 28°C (82°F). Maximum temperatures remain consistent, hovering around 30°C (86-87°F) for both months. However, November experiences a notable increase in precipitation, with 73 mm (2.9 in) over 12 days compared to October's 29 mm (1.1 in) across 8 days. This shift results in higher humidity levels in November, reaching 60% compared to October's 53%. For more detailed insights, check out the complete overview of Sao Luis weather in November.
October and December in São Luís present a mix of similar temperatures but distinct weather patterns. In October, the temperature ranges from a minimum of 25°C (78°F) to a maximum of 30°C (87°F), accompanied by relatively low precipitation at 29 mm (1.1 in) over just 8 days and a humidity level of 53%. In contrast, December experiences slightly cooler minimum temperatures at 24°C (75°F) while maintaining the same maximum of 30°C (87°F). However, it sees a significant increase in rainfall, with 117 mm (4.6 in) spread over 23 days and a much higher humidity level of 78%. For more detailed insights, you can explore the Sao Luis weather in December.
October in São Luís marks a delightful transition as the temperatures remain warm but slightly dip compared to the peak summer months. With pleasant averages around 27°C (82°F), the city experiences a refreshing yet humid atmosphere, making it an inviting time for visitors. While precipitation is present on about 8 days, the total rainfall is moderate, lending a balance that keeps the scenery lush without overwhelming downpours. This month stands out with its 53% humidity, offering a mild tropical feel that contrasts the more intense heat experienced earlier in the year. For more detailed insights into the weather patterns and climate, be sure to check out Sao Luis Climate.