October Weather in Parnaiba, Brazil

Last updated: August 21, 2025

In October, Parnaiba, Brazil experiences a vibrant climate characterized by warm temperatures and low rainfall. With maximums reaching 37°C (99°F) and an average temperature of 29°C (84°F), the weather is often sunny and inviting, perfect for outdoor activities. Nights cool down to a comfortable minimum of 24°C (75°F). This month sees a mere 7 mm (0.3 in) of precipitation over just one day, lending to the generally dry and pleasant conditions. Relative humidity hovers around 58%, ensuring a warm but manageable atmosphere for locals and visitors alike.

October Temperature in Parnaiba

In October, Parnaíba, Brazil, experiences a noticeable warmth as temperatures gradually rise. The month opens with a minimum of 24°C (75°F), reflecting a slight increase from previous months, while the average temperature settles at a comfortable 29°C (84°F). As days progress, the mercury peaks at a sizzling 37°C (99°F), making it one of the hottest times of the year. This trend highlights the region's characteristic warmth as it transitions deeper into spring, creating an inviting atmosphere for outdoor activities and exploration. With such high maxima, October serves as a reminder of Brazil's tropical climate, enticing visitors to bask in its sunny allure.

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

The chart illustrates October temperature patterns in Parnaiba, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In 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).
JanFebMarAprMayJunJulAugSepOctNovDec828180818182828384848484
Data source: Temperature data for Parnaiba generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Parnaiba

In October 2023, Parnaiba, Brazil experienced minimal rainfall, with just 7 mm (0.3 in) recorded over a single day. This starkly contrasts the earlier months, particularly from January to April, when precipitation was abundant and frequent, peaking in March with 308 mm (12.1 in) over 30 days. Following the dry months of July and August, which barely saw any rain, October’s slight precipitation marks a transition towards slightly wetter conditions in the coming months, although it remains significantly below the yearly average. Notably, October’s unique position in the data highlights the sharp decline in rainfall that characterizes the region during this period, setting the stage for a gradual return to more humid conditions as the year progresses.

October Precipitation Trends in Parnaiba

The chart displays monthly precipitation patterns in 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 Parnaiba, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec12127930829318439313272057
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Parnaiba

In Parnaiba, Brazil, October marks a noticeable shift in humidity levels as the wet season starts to wane. With the humidity at 58%, it presents a more comfortable environment compared to the sweltering high of 90% in April. This gradual decline from the previous months—where humidity peaked in March and April—suggests the onset of drier conditions after the intense summer months. The transition is marked by a steady decrease from 87% in May to 62% by July, with October offering a pleasant respite as the air grows lighter. This evolving pattern highlights Parnaiba's unique climate, where the humidity significantly dips over the year, bringing a refreshing change just as the spring blooms.

October Average Humidity in Parnaiba

This chart illustrates the average monthly humidity levels in 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 Parnaiba is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%88%89%91%88%77%63%54%55%58%62%74%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Parnaiba

In October, the UV Index in Parnaiba, Brazil, remains high at 13, categorizing it as extreme exposure with a brief burn time of just 10 minutes. This trend of elevated UV levels has been consistent throughout the year, with January and February reaching peaks of 14 and March even soaring to 16. The slight drop to 13 in October echoes the seasonal pattern, where the Index gradually declines from its pinnacle in the earlier months but still maintains a level of intensity calling for protection against sun exposure. Whether basking on the beautiful beaches or exploring the vibrant landscapes, it's crucial to stay vigilant about UV safety. For further insights on the UV Index trends, check out Parnaiba UV Index.

Maximum UV Index Levels in Parnaiba for October

The chart shows the monthly maximum UV Index (UVI) for 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 Parnaiba typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141416151312111213131313
Data source: 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 Parnaiba

In Parnaiba, Brazil, October shines as a beacon of sunlight, boasting an impressive 357 hours of radiant warmth—the highest recorded for the year. As we transition from the gentle warmth of September's 345 hours, the increasing daylight reflects a delightful trend of escalating sunshine that begins in early spring. Following October, the sun's presence begins to wane slightly, with November still enjoying a generous 341 hours, but the month truly encapsulates the peak of bountiful rays. This gradual ascent in sunshine hours from January's modest 255 to October’s vibrant peak showcases the region's inviting climate, making it an ideal time to bask in Parnaiba's glorious outdoor offerings.

Monthly Sunshine Duration in Parnaiba: October Highlighted

The October sunshine duration represents the total number of hours 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.
JanFebMarAprMayJunJulAugSepOctNovDec255h268h307h284h315h328h346h349h345h357h341h330h
Data source: Parnaiba October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Parnaiba During October

In Parnaiba, Brazil, October stands out as a promising month for sun-seekers, boasting a 62% chance of sunny weather. As we transition from the wetter months, the likelihood of clear skies increases noticeably. This upward trend from May’s 42% to October’s 62% reflects a significant turning point as the city moves into its drier season. Just prior to October, September enjoys the highest probability of sunshine at 69%, indicating that while October’s sunny days may be slightly fewer, they still promise a delightful experience. As the year progresses towards the end, the sun's presence tends to dwindle, making October a prime window to enjoy the warm Brazilian sun before the more overcast months set in.

Percentage of Sunny Days in October in Parnaiba

The chart illustrates the percentage of sunny days in 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 Parnaiba experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%23%18%35%42%58%63%68%69%62%48%31%
Data source: Parnaiba October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Parnaiba in October

In Parnaiba, Brazil, the daylight duration exhibits a remarkable consistency throughout the year. From January to April, residents bask in approximately 12 hours of sunlight daily, representing the peak of daylight abundance. As the seasons transition into May through July, daylight gently declines to 11 hours, yet the shift is subtle and hardly diminishes the region's vibrant outdoor life. By August, sunny days rebound to 12 hours once again, continuing through the end of the year. This cyclical pattern highlights Parnaiba's relatively stable daylight experience, making every month a delightful opportunity for exploration and enjoyment under the sun.

Average Daylight Hours in Parnaiba for October

The chart illustrates the variation in daylight duration in Parnaiba throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 15m12h 11m12h 6m12h 1m11h 58m11h 56m11h 57m12h12h 4m12h 9m12h 14m12h 16m
Data source: Parnaiba daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Parnaiba

As October arrives in Parnaíba, Brazil, the winds begin to dance with a refreshing vigor, reaching an average speed of 5.6 m/s (13 mph). This uptick marks a notable increase compared to the preceding months, maintaining the same brisk pace as September. Observing the trends throughout the year, it's clear that wind speeds have experienced fluctuations, peaking in the fall months. After a gradual decline from the breezy heights of August, where winds gusted at 4.5 m/s (10 mph), they surge again in October, creating an invigorating atmosphere perfect for outdoor adventures. As the year progresses towards the warmer months, the winds remain a constant companion, hinting at nature's dynamic rhythm in this vibrant coastal town.

Average October Wind Speed in Parnaiba

The chart displays monthly wind speed patterns in 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.64.13.33.42.73.23.94.55.65.6 m/s5.05.4
Data source: Parnaiba October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Parnaiba Compares to Other Months

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

October weather in Parnaiba is characterized by warm temperatures, with a minimum of 24°C (75°F) and an average of 29°C (84°F), peaking at a maximum of 37°C (99°F). Precipitation is quite low, totaling just 7 mm (0.3 in) over a single day, and the humidity hovers around 58%. In contrast, January experiences slightly cooler temperatures, with a minimum of 23°C (74°F) and an average of 28°C (82°F), reaching up to a maximum of 35°C (96°F). However, this month brings significantly more rainfall, with a total of 121 mm (4.8 in) spread over 20 days, resulting in much higher humidity at 87%. For more detailed information, check out Parnaiba weather in January.

In comparing the weather between October and February, October presents a warmer yet drier climate with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 37°C (99°F) and only 7 mm (0.3 in) of precipitation over just one day. In contrast, February experiences cooler temperatures with an average ranging from 22°C (72°F) to 34°C (94°F), but with significantly higher rainfall, totaling 279 mm (11.0 in) spread over 25 days, resulting in increased humidity levels at 88%. This stark difference highlights October's sunny conditions compared to February's more overcast and rainy days. For more detailed insights, check out Parnaiba weather in February.

October and March present contrasting weather conditions in Parnaíba. October typically enjoys warmer temperatures, with a minimum of 24°C and average highs reaching up to 37°C, making it a hot month with only a small amount of rainfall at 7 mm across just one day. In contrast, March sees cooler temperatures, with a minimum of 22°C and maximums around 33°C, but it is characterized by significant rainfall, averaging 308 mm over 30 days, leading to higher humidity levels of 89%. For a detailed look at what to expect during March, you can visit Parnaiba weather in March.

In October, the weather tends to be hot and relatively dry, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 37°C (99°F) and only 7 mm (0.3 in) of precipitation occurring over just one day. The humidity level is a moderate 58%, making the heat more bearable. In contrast, April experiences a significant change, with cooler average temperatures from a minimum of 23°C (74°F) to a maximum of 34°C (93°F), but it brings heavy rainfall, totaling 293 mm (11.5 in) across approximately 25 days, resulting in a much higher humidity of 90%. This stark difference between the months highlights the transition from dry heat in October to a wetter, more humid April. For more details, you can check Parnaiba weather in April.

In October, the weather is typically warmer and drier compared to May, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 37°C (99°F) and only 7 mm (0.3 in) of precipitation spread over just one day. In contrast, May presents a cooler average temperature of 27°C (82°F) with maximums reaching up to 33°C (92°F), but it is significantly wetter, receiving 184 mm (7.2 in) of rainfall over 18 days. Furthermore, the humidity is notably higher in May at 87%, compared to October's 58%. For a detailed look at the weather during this month, you can refer to Parnaiba weather in May.

When comparing the weather in October and June, October generally experiences warmer temperatures, with minimums reaching 24°C (75°F) and maximums up to 37°C (99°F), averaging around 29°C (84°F). In contrast, June is slightly cooler, with minimum temperatures of 23°C (73°F) and maximums of 35°C (95°F), averaging 28°C (82°F). October also sees significantly lower precipitation, only 7 mm (0.3 in) over just one day, while June receives a much higher 39 mm (1.5 in) of rain spread over six days. Additionally, humidity levels are higher in June at 77%, compared to October's 58%. For more detailed weather information, you can visit Parnaiba weather in June.

When comparing the weather in October and July, both months exhibit warm temperatures, but October tends to be slightly hotter overall. In October, the minimum temperature is 24°C (75°F) with an average of 29°C (84°F) and a maximum of 37°C (99°F). In contrast, July has a lower temperature range, with a minimum of 22°C (72°F), an average of 28°C (83°F), and a maximum of 35°C (95°F). Additionally, October is drier, with only 7 mm (0.3 in) of precipitation over just one day, while July sees more rainfall, with 31 mm (1.2 in) spread across three days. Humidity levels are also slightly higher in July at 62%, compared to 58% in October. For more specific details, you can check out Parnaiba weather in July.

In comparing the weather between October and August, October tends to be slightly warmer, with average temperatures reaching 29°C (84°F) compared to August's 28°C (84°F). The maximum temperature in October can soar to 37°C (99°F), whereas in August it peaks at 36°C (98°F). August experiences drier conditions with only 3 mm (0.1 in) of precipitation over 0 days, while October sees a modest increase in rainfall, totaling 7 mm (0.3 in) over 1 day. Humidity is also slightly higher in October at 58%, compared to 54% in August. For a closer look at August's climate specifics, visit Parnaiba weather in August.

In comparing the weather between September and October, both months exhibit similar average temperatures, with October experiencing slightly higher extremes. October's minimum temperature is 24°C (75°F) compared to September's 23°C (74°F), and the maximum in October reaches up to 37°C (99°F), just a degree higher than September's 36°C (97°F). While October sees a bit more precipitation with 7 mm (0.3 in) over one day, September had virtually no rain at only 2 mm (0.1 in) across the entire month, with zero rainy days. Humidity levels are also slightly higher in October at 58%, compared to 55% in September. For a closer look at September’s weather patterns, visit Parnaiba weather in September.

In October, the weather features warm temperatures, with a minimum of 24°C (75°F), an average of 29°C (84°F), and a maximum reaching up to 37°C (99°F). The month sees minimal precipitation, averaging only 7 mm (0.3 in) over just one day and maintaining a humidity level of 58%.

In contrast, November retains similar temperature ranges, with a minimum of 24°C (75°F), an average of 29°C (84°F), and a maximum slightly lower at 37°C (98°F). However, it experiences increased precipitation totaling 20 mm (0.8 in) across four days, alongside a slight rise in humidity to 62%. For more details, check out Parnaiba weather in November.

In October, the weather in Parnaiba features warm temperatures with a minimum of 24°C (75°F), averaging around 29°C (84°F), and reaching a maximum of 37°C (99°F). The month sees limited precipitation, with only 7 mm (0.3 in) over just 1 day and a humidity level of 58%.

In contrast, December maintains similar temperature patterns, with a minimum also at 24°C (75°F) and an average of 29°C (84°F), but maxes out slightly lower at 36°C (97°F). However, December experiences significantly more rainfall, totaling 57 mm (2.2 in) over 10 days, and a higher humidity level at 74%. For a detailed look at the conditions during this month, check out Parnaiba weather in December.

Compare Parnaiba's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Parnaiba

In October, Parnaíba experiences a distinctive transition as the heat intensifies, with maximum temperatures often soaring up to 37°C (99°F). This month marks a shift from the cooler, wetter months, as average temperatures rise to a warm 29°C (84°F), providing a perfect backdrop for outdoor activities. Despite the heat, precipitation is minimal, with just one rainy day and a light accumulation of 7 mm, contributing to a relatively low humidity level of 58%. The lack of rain and warmth makes October a unique time to explore the vibrant surroundings of Parnaíba. For a deeper dive into the year-round patterns, check out the comprehensive guide on Parnaiba Climate.