October Weather in Oeiras, Brazil

Last updated: August 21, 2025

Experience the October weather in Oeiras, Brazil, where temperatures soar to a maximum of 40°C (104°F), with an inviting average of 32°C (90°F) and a comfortable minimum of 23°C (74°F). While soaking up the sun, expect a modest precipitation amount of 20 mm (0.8 in) over just 2 days, making it an ideal time for outdoor activities. The air holds a pleasant humidity level of 45%, ensuring a warm yet manageable climate for both locals and visitors alike. Embrace the vibrancy of this Brazilian town as it basks in the rich warmth of October!

October Temperature in Oeiras

In October, Oeiras, Brazil, experiences a notable shift in temperatures as the transition towards summer begins. The minimum temperature rises to a comfortable 23°C (74°F), providing a warm backdrop for outdoor activities. Average daily highs soar to 32°C (90°F), while peak temperatures can reach a sizzling 40°C (104°F), mirroring the warmth seen in September. This trend of increasing warmth is characteristic of the region as it moves closer to the peak heat of the summer months. With the invitingly warm weather, October is a perfect time for both locals and visitors to embrace the vibrant culture and natural beauty of Oeiras.

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

The chart illustrates October temperature patterns in Oeiras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oeiras, 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).
JanFebMarAprMayJunJulAugSepOctNovDec828181818383838688898684
Data source: Temperature data for Oeiras 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 Oeiras

In October, Oeiras, Brazil experiences a significant transition as the dry spell of previous months begins to wane. Receivers of just 20 mm (0.8 in) of precipitation over 2 days, October marks a slight increase in rainfall compared to the preceding months of July, August, and September, which saw no precipitation at all. This modest uptick hints at the onset of the wet season, setting the stage for November, when rainfall escalates to 51 mm (2.0 in). The gradual shift in weather patterns from October onwards is crucial for rejuvenating the local environment, as the region prepares for the more robust rains associated with the coming months.

October Precipitation Trends in Oeiras

The chart displays monthly precipitation patterns in Oeiras, 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 Oeiras, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec8221715986133000205181
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Oeiras

In Oeiras, Brazil, October marks a significant shift in humidity levels as the year transitions into its drier months. With humidity dropping to 45%, October stands out as one of the least humid months of the year, following a gradual decline from January's high of 90%. This trend illustrates a steady decrease in moisture, with levels peaking in the early months of the year and steadily falling through the warmer seasons. By the time October arrives, residents can enjoy a refreshing break from the oppressive humidity that characterizes earlier months, setting the stage for more comfortable conditions as the festive season approaches.

October Average Humidity in Oeiras

This chart illustrates the average monthly humidity levels in Oeiras, 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 Oeiras is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%91%93%92%87%77%66%58%51%45%41%67%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Oeiras

In October, Oeiras, Brazil, continues to experience an extreme UV Index of 13, signaling that sun protection is essential for outdoor activities. This follows a trend of high UV levels throughout the year, with notable peaks in the summer months of January, February, and March, where the index reaches a staggering 15. Interestingly, while the UV Index drops slightly during the cooler months of June and July, it remains well above average, illustrating the consistent need for vigilance against sun exposure. As you plan your days in Oeiras, be sure to stay informed and protect your skin from the sun's harsh rays. For more detailed insights, check out the Oeiras UV Index.

Maximum UV Index Levels in Oeiras for October

The chart shows the monthly maximum UV Index (UVI) for Oeiras 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 Oeiras typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415141211111213131414
Data source: Oeiras 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 Oeiras

October in Oeiras, Brazil, shines bright with 354 hours of sunshine, making it the sunniest month of the year. This delightful increase marks a culmination of gradual ascent from the year’s start, where January begins with 251 hours. As the months unfold, the sunshine steadily grows, peaking in October after a robust summer of 329 hours in July and 348 hours in August. Interestingly, the trend shows that after October, the sun dips to 327 hours in November, yet it’s clear that October stands out as a radiant highlight in Oeiras' yearly climatic tapestry. With such extensive sunshine, October invites locals and visitors alike to bask in its warmth and vibrant energy.

Monthly Sunshine Duration in Oeiras: October Highlighted

The October sunshine duration represents the total number of hours Oeiras 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.
JanFebMarAprMayJunJulAugSepOctNovDec251h265h303h308h327h325h329h348h344h354h327h327h
Data source: Oeiras October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Oeiras During October

In Oeiras, Brazil, the likelihood of sunny weather in October stands at an inviting 55%. This places October in a favorable position, especially following the peak of the sunny months from July to September, which boast probabilities above 70%. Interestingly, October is a transition month; while the chances of sunshine begin to dip compared to the summer peak, they still outshine the gloomier months of November and December. Overall, as autumn rolls in, locals and visitors alike can expect a pleasant blend of sun and clouds, making it an excellent time to explore the picturesque landscapes of Oeiras.

Percentage of Sunny Days in October in Oeiras

The chart illustrates the percentage of sunny days in Oeiras 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 Oeiras experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%18%34%31%51%71%77%81%73%55%33%17%
Data source: Oeiras October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Oeiras in October

In Oeiras, Brazil, the daylight duration presents a fascinating pattern throughout the year. From January to March, residents enjoy a consistent 12 hours of daylight, creating a pleasant and stable rhythm to daily life. As the season shifts into April through August, daylight decreases slightly to 11 hours, giving way to a more relaxed atmosphere, possibly perfect for cozy evenings. However, come September, the days stretch once more, returning to 12 hours of brightness, a trend that continues through October and into November and December. This cyclical nature of daylight not only highlights the region's tropical climate but also enhances the vibrant lifestyle and outdoor activities that characterize life in this beautiful Brazilian locale.

Average Daylight Hours in Oeiras for October

The chart illustrates the variation in daylight duration in Oeiras throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 27m12h 18m12h 7m11h 55m11h 46m11h 42m11h 44m11h 52m12h 3m12h 14m12h 25m12h 30m
Data source: Oeiras daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Oeiras

As October arrives in Oeiras, Brazil, the weather begins to shift gently, much like the playful breeze that dances through the region. With an average wind speed of 2.3 m/s (5 mph), this month marks a subtle retreat from the blustery heights of late summer. Following the peak winds of August and July, which reached 4.6 m/s (10 mph) and 4.1 m/s (9 mph) respectively, October offers a refreshing medium that suits the delightful transition into the softer embrace of fall. The winds calm compared to earlier months, as the region prepares for the coolness of November, where speeds dip further to 1.7 m/s (4 mph). This gradual decline in wind activity serves as a reminder of the cyclical nature of change, creating a serene atmosphere ideal for both relaxation and reflection amidst the warm, inviting October days.

Average October Wind Speed in Oeiras

The chart displays monthly wind speed patterns in Oeiras, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.81.51.62.13.13.44.14.63.52.3 m/s1.71.8
Data source: Oeiras October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Oeiras Compares to Other Months

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

In October, temperatures typically range from a minimum of 23°C (74°F) to a maximum of 40°C (104°F), with an average of 32°C (90°F). With only 20 mm (0.8 in) of precipitation over just 2 days, the overall humidity is a comfortable 45%. In contrast, January experiences milder temperatures, with a minimum of 22°C (71°F) and an average of 28°C (82°F), though it can peak at 39°C (103°F). However, January is significantly wetter, with 82 mm (3.2 in) of rainfall spread over 14 days, leading to a much higher humidity level of 90%. For a closer look at what to expect, check out Oeiras weather in January.

In October, the weather is characterized by higher temperatures, with a minimum of 23°C (74°F) and an average of 32°C (90°F), reaching maximum highs of 40°C (104°F). Precipitation is relatively low, averaging just 20 mm (0.8 in) over about 2 days, and the humidity stands at a comfortable 45%. In contrast, February experiences milder temperatures with a minimum of 22°C (72°F), an average of 27°C (81°F), and a maximum of 37°C (98°F). However, it is also much wetter, receiving 217 mm (8.5 in) of rainfall over 21 days and a high humidity level of 91%. For more detailed insights, you can check Oeiras weather in February.

In October, the weather features warm temperatures ranging from a minimum of 23°C (74°F) to a scorching maximum of 40°C (104°F), with an average of 32°C (90°F). The month sees relatively low rainfall, totaling just 20 mm (0.8 in) over 2 days, while humidity remains moderate at 45%. In contrast, March experiences milder temperatures with a minimum of 21°C (70°F) and a maximum of 35°C (94°F), averaging 27°C (81°F). However, it is much wetter during this month, with precipitation reaching 159 mm (6.3 in) over 22 days and humidity levels soaring to 93%. For more details on weather patterns, check out Oeiras weather in March.

October and April offer contrasting weather experiences, with October typically being warmer and drier. In October, temperatures in Oeiras range from a minimum of 23°C (74°F) to a maximum of 40°C (104°F), accompanied by low humidity at 45% and only 20 mm of precipitation over just 2 days. In contrast, April presents cooler temperatures, with minimums around 21°C (71°F) and a maximum of 35°C (95°F), alongside significantly higher rainfall of 86 mm (3.4 in) spread across 14 days and high humidity levels at 92%. For a more detailed look at April's weather conditions, you can visit Oeiras weather in April.

In October, temperatures are notably higher, ranging from a minimum of 23°C (74°F) to a maximum of 40°C (104°F), with an average temperature of 32°C (90°F). The precipitation is relatively low at 20 mm (0.8 in) over just 2 days, accompanied by a comfortable humidity level of 45%. In contrast, May sees slightly cooler temperatures, with a minimum of 21°C (70°F) and a maximum of 37°C (98°F), averaging around 29°C (84°F). May also experiences higher humidity at 87% and more frequent rainfall, totaling 13 mm (0.5 in) across 3 days. For more details on the weather in May, visit Oeiras weather in May.

In comparing the weather of October and June, we can see notable differences. October experiences higher temperatures with a minimum of 23°C (74°F) and an average of 32°C (90°F), peaking at a maximum of 40°C (104°F). In contrast, June has slightly cooler temperatures, with a minimum of 20°C (69°F), an average of 29°C (84°F), and a maximum of 37°C (98°F). Rainfall in October is minimal at 20 mm (0.8 in) over two days, while June is even drier, receiving only 3 mm (0.1 in) with no recorded precipitation. Additionally, June has a higher humidity level at 77%, compared to October's 45%. For more detailed information, you can check Oeiras weather in June.

In comparing the weather of October and July, October presents notably higher temperatures, with an average of 32°C (90°F) and maximums reaching up to 40°C (104°F), while July maintains a milder average of 29°C (84°F) with a peak of 38°C (101°F). Additionally, October experiences minimal precipitation of 20 mm (0.8 in) over just two days, in stark contrast to July, which is completely dry, recording no rainfall at all. Furthermore, October's humidity sits at a lower 45%, making the heat slightly more bearable compared to July's much higher humidity level of 66%. For more details on July's weather, you can check Oeiras weather in July.

In comparing the weather between October and August, October shows a slight increase in average temperatures, with a minimum of 23°C and an average of 32°C, compared to August's minimum of 20°C and average of 30°C. Although October reaches higher maximum temperatures of up to 40°C, it also experiences some precipitation, with 20 mm falling over 2 days, while August remains completely dry with no recorded rain. Additionally, October has a lower humidity level at 45%, compared to August's higher humidity at 58%, making October feel warmer despite similar temperature ranges. For a closer look at August weather specifics, visit Oeiras weather in August.

In October, the weather becomes slightly warmer than in September, with minimum temperatures rising from 21°C (71°F) to 23°C (74°F) and an average of 32°C (90°F). Both months experience a maximum temperature of 40°C (104°F), but October sees some precipitation with 20 mm (0.8 in) falling over just 2 days, whereas September enjoys a completely dry pattern with no rainfall recorded. Humidity also decreases from 51% in September to 45% in October, contributing to a slightly drier feel in the air. For more detailed information, you can check Oeiras weather in September.

In comparing the weather between October and November, October experiences slightly higher temperatures, with a minimum of 23°C (74°F) and an average of 32°C (90°F), peaking at 40°C (104°F). In contrast, November sees marginally cooler averages, starting with a minimum of 22°C (72°F) and an average of 30°C (86°F), reaching a maximum of 39°C (103°F). October is characterized by lower precipitation, totaling 20 mm (0.8 in) over just 2 days, while November brings increased rainfall of 51 mm (2.0 in) spread across 6 days. Additionally, humidity is slightly higher in October at 45%, compared to November's 41%. For more details on November weather, visit Oeiras weather in November.

The weather in October is typically warmer, with average temperatures reaching 32°C (90°F) and maximums soaring to 40°C (104°F). In contrast, December experiences slightly cooler temperatures, with an average of 29°C (84°F) and maximums of 39°C (102°F). October also sees less precipitation, averaging only 20 mm (0.8 in) over about 2 days, while December has significantly more rain at 81 mm (3.2 in) over approximately 10 days, contributing to higher humidity levels of 67%. For a more detailed look at December weather patterns, you can visit Oeiras weather in December.

Compare Oeiras's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Oeiras

As October unfolds in Oeiras, the weather takes on a distinct character that sets it apart from the neighboring months. You can expect warm temperatures, with averages hovering around a balmy 32°C (90°F), and occasional peaks reaching up to 40°C (104°F), creating a lively atmosphere for outdoor activities. The month sees a relatively low precipitation of just 20 mm over a couple of days, allowing ample sunshine and a pleasant humidity level of 45%. This combination results in an inviting climate, perfect for exploring the scenic beauty of the region. For further insights into what makes Oeiras' weather unique throughout the year, check out Oeiras Climate.