Last updated: February 24, 2025
In October, Viana do Castelo, Portugal, experiences a delightful transition into autumn characterized by a maximum temperature of 29°C (84°F), while the average temperature settles around 16°C (61°F). Visitors can expect temperatures to dip to a minimum of 6°C (43°F), making it an ideal time for layering. With precipitation amounting to 152 mm (6.0 in) over 11 days, the weather brings a refreshing mix of sunny and rainy spells. The humidity level, hovering at 79%, enhances the coastal charm, making it a picturesque destination to explore the rich scenery and vibrant culture of this historic region.
In October, Viana do Castelo experiences a delightful transition as summer warmth lingers in the air. With temperatures ranging from a minimum of 6°C (43°F) to a maximum of 29°C (84°F), this month showcases a comfortable average of 16°C (61°F), making it a pleasant time for outdoor activities. As the season shifts, the cooler evenings invite a cozy atmosphere, while the daytime retains a warm embrace reminiscent of summer's peak in August and September. This gradual drop in temperature hints at the approaching winter months, yet October remains a delightful balance, offering both warmth during the day and a refreshing chill at night.
In October, Viana do Castelo experiences a notable uptick in precipitation, with an average of 152 mm (6.0 in) of rain over approximately 11 days. This is a significant increase compared to the dryer summer months, reflecting the shift towards the wetter autumn season. Interestingly, October's rainfall is higher than both September's 49 mm and May's 106 mm, suggesting a marked transition as the region prepares for the impending winter months. As autumn progresses, the precipitation trend continues to rise, culminating in November's substantial 216 mm, making October a vital bridge in the region's annual water cycle.
In October, Viana do Castelo experiences a notable shift in humidity, reaching 79%, a slight increase compared to the lower levels in the summer months of July and August, which hover around 63% and 64%, respectively. This rise signifies the transition into the cooler, wetter months, as the region bids farewell to summer's dryness. As autumn deepens, humidity levels start to climb again, approaching the higher figures seen in the winter months, such as November and December, where humidity rises dramatically to 86% and 87%. This trend illustrates how the coastal climate of Viana do Castelo naturally ebbs and flows, creating a lush, refreshing atmosphere that heralds the impending winter.
As October rolls into Viana do Castelo, the UV Index reflects a transition from the intense summer sun to milder exposure, registering at 6, categorized as high. This marks a slight decline from the summer months, where the UV Index peaked at 10 in June, maintaining a very high risk category. However, October still demands caution, with a burn time of 25 minutes, emphasizing the importance of sun protection during outdoor activities. With the UV levels gradually decreasing towards the cooler months, the changing seasons highlight the need to stay vigilant against sun exposure throughout the year. For more detailed insights, check out the Viana do Castelo UV Index.
UV Risk Categories
As the autumn leaves begin to fall, October in Viana do Castelo, Portugal, brings a remarkable 301 hours of sunshine, making it a delightful time to experience the region’s charm. This marks a subtle decline from the intense summer months, where sunshine peaked at an impressive 427 hours in July. However, October retains a vibrant glow, significantly brighter than the winter months ahead, where sunshine dips to around 207 hours in November. With more sunny hours than earlier months like January and February, October invites visitors to bask in the mild temperatures and stunning landscapes, bridging the warmth of summer and the cool embrace of winter. Whether exploring coastal paths or enjoying local cuisine outdoors, the golden rays of October provide a perfect backdrop for unforgettable experiences.
In Viana do Castelo, Portugal, October presents a moderate 43% chance of sunny weather, which mirrors the transition seen in the months prior. While August enjoys the highest likelihood of sunshine at 66%, the follow-up months of September and October show a notable decrease, both landing at 43%, hinting at the onset of autumn's drizzlier days. This moderate percentage suggests that visitors can still expect some sunshine, albeit with the increasing possibility of cloudier skies. As the year winds down towards the colder months, November bounces back to a 66% chance, demonstrating the region's capacity to surprise even as temperatures begin to dip.
As October unfolds in Viana do Castelo, Portugal, daylight begins to wane, offering around 11 hours of sunlight each day. This marks a gradual decrease from the sun-drenched days of summer, where June saw the peak with 15 hours of daylight. Following the vibrant month of May, which basked in 14 hours of light, October continues the downward trend initiated by September’s 12 hours. This transitional month serves as a reminder of the changing seasons, creating a unique ambience as nature prepares for the cooler, shorter days of winter ahead. The rhythm of daylight in Viana do Castelo invites locals and visitors alike to savor these diminishing hours, filled with rich autumnal colors and a serene atmosphere.
As October arrives in Viana do Castelo, the coastal breeze softens to an average wind speed of 2.9 m/s (7 mph), marking the transition into the gentler winds of autumn. This month sees a notable decline from the slightly brisker summer months, where July and August had winds averaging 3.6 m/s and 3.1 m/s, respectively. Interestingly, October maintains a consistent wind speed with the preceding months of September (3.0 m/s) and shifts only slightly lower. Looking ahead, November brings a resurgence of wind at 3.4 m/s, suggesting a subtle dance of seasonal change where the playful gusts of autumn beckon before winter's chill. This rhythm of wind speeds throughout the year highlights the mild and inviting nature of Viana do Castelo's maritime climate, making it a perfect retreat for those seeking a peaceful escape.
The weather in Viana do Castelo 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 Viana do Castelo and find detailed weather information for every month.
In Viana do Castelo, October presents a milder climate with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 29°C (84°F), and an average of 16°C (61°F), while January is notably cooler, with temperatures dipping to a minimum of -1°C (31°F) and averaging only 9°C (49°F). Both months experience considerable rainfall, with October receiving about 152 mm (6.0 in) across 11 days and January slightly lower at 136 mm (5.4 in) over 10 days. Additionally, January tends to be more humid at 87%, compared to October's 79%. For a closer look at the January conditions, you can check Viana do Castelo weather in January.
October and February exhibit distinct weather patterns, reflecting the transitional seasons. In October, temperatures range from a mild minimum of 6°C (43°F) to a warmer average of 16°C (61°F) during the day, peaking at 29°C (84°F). The month sees about 152 mm (6.0 in) of precipitation over approximately 11 days, with humidity levels around 79%. In contrast, February is cooler, with a minimum temperature of 1°C (35°F) and an average of 11°C (52°F), reaching up to 21°C (70°F). This month experiences slightly higher precipitation at 185 mm (7.3 in) over 13 days and a slightly increased humidity of 81%. For more detailed information, you can check Viana do Castelo weather in February.
When comparing the weather in October and March, October tends to be warmer, with average temperatures ranging from 6°C (43°F) to 29°C (84°F), while March sees cooler temperatures, with a range from 2°C (37°F) to 23°C (73°F). Precipitation is notably high in both months, but March experiences slightly more rainfall (186 mm or 7.3 in) over a few additional days compared to October's 152 mm (6.0 in) across 11 days. Humidity levels are similar in both months, hovering around 79% in October and 78% in March. For those looking for detailed insights, you can check out the specific conditions in this link: Viana do Castelo weather in March.
In comparing the weather of October and April, it's clear that both months exhibit mild temperatures, but with some distinct differences. October boasts a wider temperature range with minimums averaging 6°C (43°F) and maximums reaching up to 29°C (84°F), contributing to a pleasant average of 16°C (61°F). In contrast, April has a slightly cooler average temperature of 13°C (56°F) and a more modest maximum of 26°C (79°F). Precipitation is comparable, with October recording 152 mm (6.0 in) over 11 days, while April sees a bit more rainfall at 169 mm (6.7 in) across 13 days. Both months share the same humidity level of 79%, maintaining a comfortable but moist climate. For more detailed information, check out Viana do Castelo weather in April.
In comparing the weather of October and May, both months share similar temperature ranges, with minimums at 6°C (43°F), averages at 16°C (61°F), and maximums reaching up to 29°C (84°F). However, October tends to be wetter with 152 mm (6.0 in) of precipitation over 11 days, compared to May's 106 mm (4.2 in) over just 9 days. The humidity levels are comparable, with October at 79% and May slightly lower at 78%. This makes May a generally drier month, ideal for outdoor activities, while October may bring more rainy days. For more detailed insights, you can check Viana do Castelo weather in May.
In comparing the weather of October and June, October tends to be cooler, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 29°C (84°F), while June sees slightly warmer temperatures with a minimum of 9°C (48°F) and a maximum of 28°C (84°F). October experiences significantly more precipitation, averaging 152 mm (6.0 in) over 11 days, compared to June's 59 mm (2.3 in) over 7 days. The humidity level is also higher in October at 79%, whereas June maintains a more comfortable humidity of 71%. For more detailed insights, check out Viana do Castelo weather in June.
In comparing the weather of October and July, October presents a cooler climate with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 29°C (84°F), while July tends to be warmer, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 30°C (87°F). October experiences significantly more rainfall, accumulating 152 mm (6.0 in) over approximately 11 days, in stark contrast to July’s modest 26 mm (1.0 in) over just 5 days. Additionally, October's humidity is higher at 79%, compared to July's 63%, contributing to a different feel in the air. For more detailed information on July weather, you can check Viana do Castelo weather in July.
In comparing the weather between October and August, it is clear that August tends to be warmer and drier. The minimum temperature in August averages at 12°C (54°F) and can reach up to a maximum of 32°C (90°F), while October's temperatures fluctuate between a minimum of 6°C (43°F) and a maximum of 29°C (84°F). Furthermore, August experiences significantly less precipitation, with only 30 mm (1.2 in) over 3 days, compared to October's 152 mm (6.0 in) over 11 days, making it a much wetter month. Additionally, the humidity in October is notably higher at 79% compared to August's 64%. For a closer look at August weather specifics, you can visit Viana do Castelo weather in August.
October weather experiences cooler temperatures compared to September, with a minimum of 6°C (43°F) and an average of 16°C (61°F), while September boasts higher averages with a minimum of 10°C (50°F) and an overall average of 19°C (66°F). Additionally, October is marked by significantly more precipitation, receiving 152 mm (6.0 in) over 11 days, in contrast to September's 49 mm (1.9 in) over just 6 days. The humidity levels also rise in October to 79%, compared to 71% in September, contributing to a distinctly more damp atmosphere. For a more detailed comparison of September weather in Viana do Castelo, you can visit Viana do Castelo weather in September.
In October, Viana do Castelo experiences a milder climate with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 29°C (84°F), and an average of 16°C (61°F). The month sees about 152 mm (6.0 in) of precipitation over 11 days, with humidity averaging 79%. In contrast, November brings cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 21°C (70°F), averaging just 12°C (54°F). The rainfall increases significantly to 216 mm (8.5 in) over approximately 15 days, accompanied by higher humidity levels at 86%. For a more detailed overview, you can check the Viana do Castelo weather in November.
October weather in Viana do Castelo is generally warmer, with average temperatures reaching up to 16°C (61°F) and a maximum of 29°C (84°F). However, this month also sees substantial rainfall, with about 152 mm (6.0 in) of precipitation spread over 11 days and humidity levels at a comfortable 79%. In contrast, December experiences cooler temperatures, with an average of 11°C (52°F) and maximums peaking at 19°C (66°F). The month brings increased precipitation, totaling 246 mm (9.7 in) across 17 days, along with higher humidity at 87%. For more details, you can check out Viana do Castelo weather in December.
As October unfolds in Viana do Castelo, it marks a distinct transition from the warmth of summer to the cooler embrace of autumn. With temperatures averaging a comfortable 16°C (61°F), the days can still experience a peak warmth of 29°C (84°F), while the nights become brisker, dipping to 6°C (43°F). This month also sees a shift in precipitation patterns, averaging about 152 mm (6.0 in) over 11 days, bringing much-needed rain to the region. The 79% humidity adds to the crisp autumn feel, making it a perfect time to enjoy the stunning coastal landscapes as they change color. For a deeper dive into what to expect year-round, check out the Viana do Castelo Climate.