October Weather in Santana de Parnaiba, Brazil

Last updated: August 21, 2025

In October, Santana de Parnaíba experiences a striking contrast in weather, with temperatures peaking at a sweltering 37°C (99°F) while maintaining a comfortable average of 21°C (70°F). Nighttime brings relief, as the mercury dips to a refreshing 12°C (53°F). This month is also notable for its humidity level, hovering around 50%, which can make the heat feel more intense. Rainfall is prevalent, with a total of 115 mm (4.5 in) spread across approximately 15 days, ensuring that the lush landscape remains vibrant. Whether basking in the warmth or navigating the refreshing showers, October offers a dynamic climate perfect for exploring this charming Brazilian locale.

October Temperature in Santana de Parnaiba

In October, Santana de Parnaíba experiences a pleasant transition toward warmer temperatures, with minimums reaching 12°C (53°F) and average temperatures around 21°C (70°F). The maximums can soar to 37°C (99°F), marking a noticeable rise compared to the cooler months preceding it. This elevation in heat heralds the approach of summer, as the city shifts from the moderate temperatures of winter to the vibrant warmth of the upcoming season. As days become increasingly sunny, locals and visitors alike embrace the inviting weather, making October an ideal time to explore the rich culture and beautiful landscapes that Santana de Parnaíba has to offer.

October Weather in Santana de Parnaiba: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Santana de Parnaiba, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santana de Parnaiba, October typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec737272686464626369696972
Data source: Temperature data for Santana de Parnaiba generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Santana de Parnaiba

In October, Santana de Parnaíba experiences a notable uptick in precipitation, with 115 mm (4.5 in) of rainfall over approximately 15 days. This increase is part of a broader trend that sees the transition from the drier months of winter towards the wet season, as rainfall begins to intensify in the lead-up to the end of the year. Compared to the much lower totals of June and July, where precipitation plummeted to just 46 mm (1.8 in) and 24 mm (0.9 in) respectively, October's rainfall marks a significant shift. The city's wettest months, January and December, are just around the corner, but October's precipitation acts as a precursor, setting the stage for the lush landscapes that characterize the summer months in this vibrant region of Brazil.

October Precipitation Trends in Santana de Parnaiba

The chart displays monthly precipitation patterns in Santana de Parnaiba, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Santana de Parnaiba, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec176159129544646245538115119149
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Santana de Parnaiba

As October arrives in Santana de Parnaiba, Brazil, the humidity takes a noticeable dip, dropping to a refreshing 50%. This marks a significant decrease from the earlier months, where levels hovered well above 70%. Following a trend of decreasing humidity throughout the year, October presents a delightful contrast to the preceding winter months' dampness. With the transition from the wet season to the drier months, residents and visitors alike can enjoy a more comfortable atmosphere, making October an ideal time to explore the city's vibrant landscapes and rich culture without the weight of humidity in the air.

October Average Humidity in Santana de Parnaiba

This chart illustrates the average monthly humidity levels in Santana de Parnaiba, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Santana de Parnaiba is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%84%79%77%72%65%58%50%75%80%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Santana de Parnaiba

In October, Santana de Parnaiba experiences a UV Index of 13, classifying it in the extreme exposure category, with a burn time of just 10 minutes. This trend reflects the region's consistent high UV levels throughout the year, particularly from January to April, where indexes peak at 16 and 15. While the transition into May and June brings a slight decline to 8 and 6, respectively, the UV intensity rebounds in September and remains high in October, reminding residents and visitors alike of the need for adequate sun protection. To better prepare for outdoor activities, understanding these trends is essential. For more detailed information on UV levels, check out the Santana de Parnaiba UV Index.

Maximum UV Index Levels in Santana de Parnaiba for October

The chart shows the monthly maximum UV Index (UVI) for Santana de Parnaiba in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Santana de Parnaiba typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16151311867911131516
Data source: Santana de Parnaiba October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

October Sunshine in Santana de Parnaiba

In October, Santana de Parnaíba enjoys a delightful blend of warmth and light, basking in 269 sunshine hours. This month follows a remarkable September, which also saw 292 hours of golden rays, maintaining the trend of ample sunshine as the year approaches its end. As the days grow shorter towards November, the sunshine hours remain robust, suggesting a consistent pattern of bright days throughout this vibrant season. The gentle decline from late summer's peak in March with 307 hours and a slight dip during the cooler months hints at a beautifully balanced climate that locals and visitors alike can relish in. With every sun-soaked day, October continues to embody the charm of Brazil's subtropical aura.

Monthly Sunshine Duration in Santana de Parnaiba: October Highlighted

The October sunshine duration represents the total number of hours Santana de Parnaiba experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec228h264h307h286h274h254h292h266h292h269h284h305h
Data source: Santana de Parnaiba October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Santana de Parnaiba During October

In Santana de Parnaíba, Brazil, the likelihood of sunny weather in October is notably low, with only a 14% chance of sunshine. This marks a significant dip compared to the peak sunny months of July and August, where the chances soar to 58% and 48% respectively. Following a gradual increase in sunshine from April to September, October experiences a sharp decline, making it one of the cloudier months of the year. Interestingly, this trend continues into the beginning of the wet season, as sunshine likelihood increases again only in November to 33%. This data suggests that if you're planning a visit, you might want to prepare for overcast skies and occasional rain during this month.

Percentage of Sunny Days in October in Santana de Parnaiba

The chart illustrates the percentage of sunny days in Santana de Parnaiba throughout the year, with October highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Santana de Parnaiba experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec13%39%38%45%38%38%58%48%44%14%33%34%
Data source: Santana de Parnaiba October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Santana de Parnaiba in October

In October, Santana de Parnaíba enjoys a return to 12 hours of daylight, striking a perfect balance between the long summer days and shorter winter nights. Following the gradual decline in daylight hours from January's 13 hours down to 10 hours in June and July, the days start to extend again as autumn settles in. This month marks a notable shift after September's equal 11-hour days, hinting toward the rejuvenating warmth of spring ahead. As November approaches, sunlight will again reach its peak, rekindling the energy that comes with longer days and vibrant colors in the landscape. The rhythmic ebb and flow of daylight in this Brazilian jewel continues to offer a captivating experience for both residents and visitors alike.

Average Daylight Hours in Santana de Parnaiba for October

The chart illustrates the variation in daylight duration in Santana de Parnaiba throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 22m12h 51m12h 11m11h 30m10h 57m10h 41m10h 50m11h 19m11h 57m12h 38m13h 14m13h 32m
Data source: Santana de Parnaiba daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Santana de Parnaiba

As October sweeps into Santana de Parnaíba, the winds begin to pick up, showcasing an invigorating shift in the season. With an average wind speed of 3.7 m/s (8 mph), October stands out as a month of refreshing breezes, the strongest of the year so far. This marks a notable increase from the gentle currents of early spring and summer, where winds hovered around 2.5 to 3.3 m/s. The trend indicates a gradual intensification leading into the last quarter of the year, hinting at more energetic days ahead. As the air turns crisp, it's the perfect time for locals and visitors alike to revel in outdoor activities, embraced by the lively October wind.

Average October Wind Speed in Santana de Parnaiba

The chart displays monthly wind speed patterns in Santana de Parnaiba, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.52.13.02.62.52.83.33.43.7 m/s3.63.2
Data source: Santana de Parnaiba October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Santana de Parnaiba Compares to Other Months

Weather in Santana de Parnaiba varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Santana de Parnaiba, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing the weather of October and January, October sees a minimum temperature of 12°C (53°F) and an average of 21°C (70°F), while January maintains slightly warmer temperatures with a minimum of 15°C (59°F) and an average of 23°C (74°F). While October can reach a maximum of 37°C (99°F), January's peak is more moderate at 34°C (93°F). Precipitation levels are notably higher in January, with 175 mm (6.9 in) over 19 days compared to October's 115 mm (4.5 in) over 15 days. Furthermore, humidity is significantly higher in January at 88%, in contrast to October's 50%. For a more detailed look at January's weather, you can visit Santana de Parnaiba weather in January.

When comparing the weather in October and February, we observe notable differences in temperature and precipitation. October features a pleasant average temperature of 21°C (70°F), with a minimum of 12°C (53°F) and a maximum reaching up to 37°C (99°F). In contrast, February offers slightly warmer conditions, with an average temperature of 22°C (73°F) and a minimum of 15°C (59°F), but it also faces higher humidity and precipitation levels. October experiences about 115 mm (4.5 in) of rain over 15 days, while February has a heftier 159 mm (6.3 in) spread across 17 days, leading to a much more humid environment at 88%. For a more detailed look at February's climate, you can check Santana de Parnaiba weather in February.

When comparing the weather in October and March, both months exhibit warm temperatures, but with distinct differences. In October, the average temperature ranges from a comfortable 21°C (70°F) to a high of 37°C (99°F), while March maintains a slightly higher average of 22°C (73°F) with a maximum temperature of 33°C (91°F). Precipitation levels show that October has 115 mm (4.5 in) over 15 days, whereas March has slightly higher precipitation at 129 mm (5.1 in) across the same number of days. Additionally, March exhibits significantly higher humidity at 87% compared to October's 50%. For more detailed insights into the weather patterns in March, you can check Santana de Parnaiba weather in March.

When comparing the weather of October and April, October tends to be warmer overall, with average temperatures reaching 21°C (70°F) and maximum temperatures peaking at 37°C (99°F). In contrast, April has slightly cooler average temperatures of 20°C (69°F), with a maximum of 31°C (88°F). While both months experience rainfall, October sees significantly more precipitation, totaling 115 mm (4.5 in) over 15 days, compared to April's 54 mm (2.1 in) spread over just 7 days. Additionally, April is characterized by higher humidity levels at 84%, while October's humidity is lower at 50%. For a more detailed look at April weather, check out Santana de Parnaiba weather in April.

In October, the weather tends to be warmer and more varied, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 37°C (99°F), while the average temperature stands at 21°C (70°F). This month also experiences significant rainfall, totaling 115 mm (4.5 in) over about 15 days, accompanied by a moderate humidity level of 50%.

In contrast, May offers cooler and milder weather, with temperatures spanning from a minimum of 4°C (39°F) to a maximum of 30°C (86°F), and an average of 18°C (65°F). Rainfall is considerably lower in May, with only 46 mm (1.8 in) over about 5 days, and the humidity is notably higher at 79%. For more detailed information about the weather during May, visit Santana de Parnaiba weather in May.

When comparing the weather in October and June, October tends to be warmer with average temperatures reaching 21°C (70°F) and maximum highs soaring up to 37°C (99°F). In contrast, June has cooler averages of 18°C (64°F) and maximum temperatures around 27°C (82°F). Additionally, October experiences more rainfall, receiving 115 mm (4.5 in) over 15 days, while June sees significantly less, with just 46 mm (1.8 in) over 5 days. The humidity is also notably higher in June, at 77%, compared to October's 50%. For more detailed insights, you can check out the link: Santana de Parnaiba weather in June.

When comparing the weather in October and July, there are notable differences. October experiences a wider temperature range with a minimum of 12°C (53°F) and a maximum reaching up to 37°C (99°F), while July’s temperatures are much cooler, ranging from a chilly 1°C (35°F) to a maximum of 29°C (84°F). Additionally, October sees significantly more precipitation, totaling 115 mm (4.5 in) over approximately 15 days, compared to July's much drier climate with only 24 mm (0.9 in) over just 2 days. Humidity levels also differ, with October maintaining a moderate 50% compared to the higher 72% humidity in July. For more details on the July weather, you can check out Santana de Parnaiba weather in July.

In comparing the weather of October and August, we notice notable differences in temperature and precipitation. October experiences a broader temperature range, with minimums around 12°C (53°F) and maximums reaching up to 37°C (99°F), while August has cooler temperatures, ranging from a minimum of 6°C (42°F) to a maximum of 32°C (89°F). Additionally, October is significantly wetter, receiving 115 mm (4.5 in) of precipitation over 15 days, compared to August's 55 mm (2.2 in) over just six days. This increase in October's precipitation, along with its lower humidity level of 50%, contrasts with August's higher humidity at 65%. For more details on August weather, check out Santana de Parnaiba weather in August.

In comparing the weather between September and October, it is evident that October experiences a broader temperature range, with minimums reaching 12°C (53°F) and maximums soaring to 37°C (99°F). Meanwhile, September begins cooler, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 35°C (95°F). Precipitation also sees a significant increase in October, with 115 mm (4.5 in) of rain over 15 days, compared to just 38 mm (1.5 in) across 6 days in September. Additionally, humidity levels are slightly lower in October at 50%, compared to 58% in September, contributing to a more comfortable atmosphere despite the increased rainfall. For more detailed insights on September's weather, you can check Santana de Parnaiba weather in September.

October and November present a shift in weather patterns, albeit with some similarities. In October, temperatures range from a minimum of 12°C (53°F) to a maximum of 37°C (99°F), with an average of 21°C (70°F). The month sees significant rainfall, totaling 115 mm (4.5 in) over approximately 15 days, coupled with a lower humidity level of 50%.

In contrast, November brings slightly cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 35°C (95°F), while the average remains at 21°C (69°F). Rainfall increases slightly to 119 mm (4.7 in) over about 14 days, and humidity rises considerably to 75%. For more details on the weather conditions in November, you can check Santana de Parnaiba weather in November.

October and December weather exhibit notable differences. In October, the temperatures range from a minimum of 12°C (53°F) to a maximum of 37°C (99°F), with an average of 21°C (70°F). The month sees about 115 mm (4.5 in) of precipitation over 15 days, accompanied by a relatively moderate humidity level of 50%. In contrast, December features slightly lower maximum temperatures, peaking at 34°C (93°F), while maintaining a similar minimum temperature of 12°C (54°F) and an average of 22°C (72°F). Precipitation increases to 149 mm (5.9 in) spread over 20 days, and humidity rises significantly to 80%. For more detailed information, you can check Santana de Parnaiba weather in December.

Compare Santana de Parnaiba's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Santana de Parnaiba

As October unfolds in Santana de Parnaíba, the weather showcases a unique transition, confidently stepping into warmer days. With maximum temperatures soaring, the month contrasts sharply with the cooler winter months, offering a blend of balmy sunshine and refreshing evenings. Although the average temperature remains pleasant, the increase in precipitation days adds an element of unpredictability to the scenery, inviting lush greenery while keeping the humidity at a moderate level. This delightful mix not only enhances the region's natural beauty but also sets the stage for a vibrant outdoor experience. To delve deeper into the climatic nuances of this enchanting city, visit Santana de Parnaiba Climate.