Last updated: February 24, 2025
October in Sintra, Portugal, offers a delightful blend of mild temperatures and enchanting landscapes, making it a perfect time for exploration. The maximum temperature reaches a comfortable 23°C (74°F), while the average hovers around 18°C (64°F), dropping to a refreshing minimum of 11°C (52°F) at night. With an average humidity level of 74%, the air carries a crispness that invigorates the senses. This month also sees about 53 mm (2.1 in) of rain over approximately 6 days, ensuring that the lush greenery of the region thrives. Whether you're wandering through historic sites or enjoying the stunning views, October's weather provides an ideal backdrop for your adventures in Sintra.
In October, Sintra experiences a pleasant transition from the warmth of summer to the crispness of autumn. With temperatures ranging from a minimum of 11°C (52°F) to a comfortable maximum of 23°C (74°F), the average settles at about 18°C (64°F). This month marks the tail end of the warmer season, as temperatures gradually begin to decrease, resembling a gentle shift towards winter. The weather remains mild, creating a perfect backdrop for exploring Sintra's lush landscapes and historic sites. As the days grow shorter, the vibrant fall foliage adds an enchanting layer to this picturesque region, enticing visitors with its charm.
In October, Sintra experiences a notable uptick in precipitation, with an average of 53 mm (2.1 in) falling over 6 days. This marks a shift from the drier summer months, where rainfall is minimal, to a more robust autumn pattern. While the precipitation amount is less than that of November's peak 89 mm (3.5 in), it signals the onset of the wet season. The rainfall of October serves not only to nourish the lush landscapes that Sintra is famous for but also sets the stage for the more intense weather of the following months. As visitors explore the scenic beauty of this enchanting region, the autumn rains contribute to a vibrant, lush environment, enhancing Sintra's breathtaking charm.
In Sintra, Portugal, October marks a subtle transition in humidity levels as the summer heat begins to wane. The month sees an increase to 74% humidity, reflecting a shift from the more arid conditions of July and August, which both register at 60%. This uptick is characteristic of the autumn season, blending cooler air with lingering warmth. Interestingly, October's humidity remains lower than the winter months, where levels soar to 85% by January and December. This trend highlights Sintra's coastal climate, where humidity ebbs and flows throughout the year, creating a unique and enchanting atmosphere in the fall.
In October, Sintra, Portugal experiences a UV Index of 6, categorized as high, which indicates a moderate risk of harm from unprotected sun exposure. As the season shifts from the intense summer rays, which peak in June at an extreme level of 11, the UV Index gradually declines. This noteworthy decrease offers a more forgiving environment for outdoor activities but still necessitates caution, with a burn time of around 25 minutes for those at risk. Compared to the preceding months, October's sun presents a notable shift from the very high levels recorded through the summer, including 10 in July and 9 in August, highlighting the transition into a cooler, yet still sunny, autumn. For more detailed information on sun safety and trends throughout the year, check out Sintra UV Index.
UV Risk Categories
As autumn unfolds in Sintra, October graces the region with a delightful 313 hours of sunshine, a gentle reminder of the vibrant summer days that preceded it. The transition from the peak of July and August, which bask in over 420 hours of sunlight, showcases a soft decline through the months, yet October still radiates ample light for outdoor adventures and exploration. The total hours of sunshine notably drop from the summer highs, mirroring the gradual cooling of the air. However, with a substantial increase from September’s 348 hours, October displays an inviting warmth just before the winter embraces the landscape. Sintra’s charm, adorned with golden hues and rich history, is perfectly complemented by this nuanced sunshine, making it an enchanting time to visit.
In Sintra, Portugal, October offers a pleasant 55% chance of sunny weather, signifying a delightful embrace of autumn before winter sets in. This sunlit chance is a remarkable midpoint when compared to the preceding months of peak summer, which boast probabilities above 65%. Interestingly, the weather in October retains some of the late summer’s warmth and brightness, contrasting sharply with the wetter months that follow, especially November, which sees a notable increase to 65%. As the year progresses, it’s evident that while the probability of sunny days fluctuates, the charming landscape of Sintra continues to shine through varying levels of sunshine, inviting visitors to experience its beauty in the golden hues of fall.
As October ushers in the autumn season, Sintra, Portugal experiences a gentle decline in daylight duration, offering approximately 11 hours of sunlight each day. This decrease follows a peak in summer, where daylight stretches to a generous 14 hours from June through August. The trend reveals a gradual tapering off as the year progresses, beginning with a robust 9 hours in January that steadily increases until reaching its mid-year high. The transition into October reflects a natural rhythm, where the daylight begins to recede, hinting at the cozy atmosphere that accompanies the cooler months ahead. Visitors can expect a balance of light and shadow, perfect for exploring the enchanting landscapes and historic sites that Sintra has to offer.
As October unfolds in Sintra, Portugal, the winds begin to soften, gently transitioning from the brisk summer breezes to a more tranquil atmosphere. With an average wind speed of 5.1 m/s (11 mph), October experiences the lowest winds of the year, a notable decline from the summer months where speeds hovered around 7.2 to 7.3 m/s. This calming breeze complements the stunning autumn scenery, inviting both locals and visitors to savor leisurely strolls through the lush landscapes. As the month draws to a close, the winds gradually pick up again in November, reminding us of the dynamic weather patterns that define this enchanting region.
The weather in Sintra changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Sintra and find detailed weather information for every month.
In comparing the weather between October and January, October generally offers milder temperatures, with average highs of 23°C (74°F) and lows around 11°C (52°F), while January's temperatures tend to be cooler, peaking at 18°C (64°F) and dropping to a minimum of 7°C (45°F). Precipitation is slightly higher in October at 53 mm (2.1 in) over six days, whereas January experiences 42 mm (1.7 in) over seven days, reflecting a bit more consistent light rain. Additionally, January tends to be more humid, with levels at 85% compared to October's 74%. For more details on the climate, check out Sintra weather in January.
October and February present contrasting yet mild weather patterns. In October, temperatures range from a minimum of 11°C (52°F) to a maximum of 23°C (74°F), with an average of 18°C (64°F). The month experiences around 53 mm (2.1 in) of precipitation over approximately 6 days, contributing to a relatively humid atmosphere at 74%. In comparison, February is slightly cooler, with temperatures ranging from 9°C (48°F) to 17°C (63°F) and an average of 13°C (56°F). This month sees a bit more rainfall, totaling 59 mm (2.3 in) over about 8 days, and humidity is marginally higher at 75%. For more detailed information about the weather in February, you can visit Sintra weather in February.
In comparing the weather between October and March, October tends to offer slightly warmer temperatures, with average highs reaching 23°C (74°F) compared to March’s maximum of 19°C (66°F). While both months experience ample precipitation, March is slightly wetter, accumulating about 64 mm (2.5 inches) over approximately 8 days, whereas October sees about 53 mm (2.1 inches) across 6 days. Humidity levels are similar, with October at 74% and March at 72%. For more detailed weather insights in March, you can check Sintra weather in March.
In October, the weather is generally warmer with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 23°C (74°F), while April experiences slightly cooler temperatures averaging between 10°C (50°F) and 21°C (71°F). October sees less precipitation, with about 53 mm (2.1 in) over approximately 6 days, compared to April's higher rainfall of 71 mm (2.8 in) spread over 11 days. Humidity levels are similar, with October at 74% and April at 70%, creating a comfortable atmosphere for outdoor activities. For more specific insights on April weather, you can check Sintra weather in April.
In October, the weather is generally milder with average temperatures ranging from 11°C (52°F) to a high of 23°C (74°F). The month tends to be wetter, receiving about 53 mm (2.1 in) of precipitation over approximately 6 days, accompanied by a humidity level of 74%. In contrast, May offers slightly cooler conditions, with daily temperatures averaging between 11°C (53°F) and 24°C (76°F) and less precipitation, totaling around 33 mm (1.3 in) over just 3 days. Humidity in May is also a bit lower at 70%, making it a fresher month compared to October. For a more detailed look at weather patterns, you can visit Sintra weather in May.
October and June exhibit contrasting weather patterns. In October, temperatures range from a minimum of 11°C (52°F) to a maximum of 23°C (74°F), with an average of 18°C (64°F). It tends to be wetter, with approximately 53 mm (2.1 in) of precipitation over about six days and humidity levels around 74%. In contrast, June experiences slightly warmer temperatures, with a minimum of 14°C (58°F) and a maximum of 22°C (72°F), averaging at 17°C (63°F). The month is much drier, only seeing around 12 mm (0.5 in) of precipitation over two days and lower humidity at 63%. For more details on the typical climate during this month, check out Sintra weather in June.
In comparing the weather between October and July, we notice some distinct differences. October experiences cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 23°C (74°F), while July is warmer, starting at a minimum of 16°C (60°F) and reaching a peak of 21°C (70°F). Additionally, October sees more precipitation, with an average of 53 mm (2.1 in) over 6 days, contrasting sharply with July's dry conditions, which typically boast only 3 mm (0.1 in) of precipitation spread across 0 days. The humidity levels also vary, being higher in October at 74%, compared to the 60% humidity typical of July. For a detailed look at July weather in Sintra, check out Sintra weather in July.
In comparing the weather between October and August, October tends to be cooler, with minimum temperatures dropping to 11°C (52°F) compared to August's milder minimum of 16°C (61°F). Both months share an average temperature of 18°C (64°F) and a maximum of 23°C (74°F). However, October experiences significantly more precipitation, with 53 mm (2.1 in) over about 6 days, while August sees only a light drizzle of 4 mm (0.1 in) in just one day. Additionally, October’s humidity is higher at 74%, compared to August's 60%, making October feel noticeably wetter. For a detailed overview of August weather, visit Sintra weather in August.
October brings a slight dip in minimum temperatures compared to September, with lows of 11°C (52°F) versus September's 15°C (60°F). However, both months share similar average and maximum temperatures, both peaking at 18°C (64°F) and 23°C (74°F), respectively. October experiences more precipitation, totaling 53 mm (2.1 in) over 6 days, compared to September's 32 mm (1.2 in) over just 2 days, resulting in higher humidity levels in October at 74% compared to 67% in September. For more detailed statistics, you can check Sintra weather in September.
October typically enjoys milder temperatures with an average of 18°C (64°F) and a maximum reaching 23°C (74°F), while November sees a slight drop in average temperature to 16°C (60°F) and a high of 20°C (68°F). Both months experience similar minimum temperatures, around 11°C (52-53°F), but November brings increased precipitation, averaging 89 mm (3.5 in) over 11 days, compared to October's 53 mm (2.1 in) over just 6 days. Additionally, November tends to be more humid, with humidity levels rising to 83% compared to October's 74%. For more detailed information on weather conditions, you can check Sintra weather in November.
October typically experiences milder temperatures, with a minimum of 11°C (52°F) and an average of 18°C (64°F), compared to December, which sees a slightly cooler minimum of 9°C (49°F) and an average temperature of 14°C (58°F). While October has less precipitation at 53 mm (2.1 in) over about 6 days, December is wetter, receiving 73 mm (2.9 in) spread across approximately 10 days. Additionally, humidity levels are higher in December at 85% compared to October's 74%, making the later month feel more damp and chilly. For a detailed look at December conditions, visit Sintra weather in December.
As October unfolds in Sintra, the weather offers a refreshing change compared to the warmer summer months. With maximum temperatures averaging around 23°C (74°F) and a comfortable 18°C (64°F) overall, the climate is ideal for outdoor exploration. The arrival of increased humidity at 74% and some light precipitation, totaling 53 mm (2.1 in) over about 6 days, hints at the transition into the lush, vibrant landscapes that define this region. October's mild conditions and intermittent rain create a unique atmosphere, perfect for enjoying the enchanting sights of Sintra. For more detailed insights into how October fits into the overall year-round weather patterns, visit Sintra Climate.