October Weather in Porto, Portugal

Last updated: February 24, 2025

Experience the vibrant charm of Porto, Portugal in October, where temperatures can reach a maximum of 31°C (88°F), while the average settles at a comfortable 17°C (62°F). As the month unfolds, expect cooler evenings with minimum temperatures dipping to 6°C (44°F). Rainfall is not uncommon, with an average precipitation of 121 mm (4.8 in) over 10 days, contributing to the lush greenery that characterizes the region. With a humidity level around 79%, October offers a refreshing atmosphere, making it an ideal time to explore the city's rich culture and stunning landscapes.

October Temperature in Porto

In October, Porto, Portugal, experiences a delightful transition into autumn, showcasing a minimum temperature of 6°C (44°F) and an average of 17°C (62°F), rising to a pleasant maximum of 31°C (88°F). This month stands out with a perfect blend of warmth and cool breezes, reflecting the lingering summer while inviting crisp fall air. October temperatures, particularly the midday highs, allow for ample opportunity to explore the city's stunning sights, from the iconic Ribeira district to the historic coastline. As the month progresses, the overall trend shifts towards cooler evenings, making it an ideal time to enjoy cozy cafés and local wines.

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

The chart illustrates October temperature patterns in Porto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec495254576365707068625552
Data source: Temperature data for Porto 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 Porto

In October, Porto experiences a noticeable uptick in precipitation, with an average rainfall of 121 mm (4.8 in) spread across approximately 10 days. This pattern marks a transition from the drier summer months, where July and August receive only 23 mm (0.9 in) and 19 mm (0.7 in) respectively. As autumn sets in, the city's rainfall begins to approach the heavier amounts typical of the winter months, paving the way for November’s 156 mm (6.1 in) and December's peak of 187 mm (7.4 in). This shift not only underscores October's role as a bridge between the warm, dry summer and the cooler, wetter winter, but also enhances the natural beauty of Porto, as the landscape flourishes with the replenishing rains.

October Precipitation Trends in Porto

The chart displays monthly precipitation patterns in Porto, 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.
JanFebMarAprMayJunJulAugSepOctNovDec911381411468150231939121156187
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Porto

As October arrives in Porto, Portugal, the humidity gently rises to 79%, marking a transitional period in the climate. This mid-autumn month feels notably more humid when compared to the drier summer months of July and August, where humidity dipped to 63% and 64%, respectively. Following the relatively stable levels of September at 71%, October's humidity hints at the approaching winter. Overall, the trend suggests a gradual increase in moisture content, with winter months witnessing a significant uptick, reaching 87% by December. This rhythm creates a unique atmosphere, as Porto's charm is enhanced by the varying humidity levels throughout the year, offering a refreshing perspective on its maritime climate.

October Average Humidity in Porto

This chart illustrates the average monthly humidity levels in Porto, with October's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how October's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec87%81%78%79%78%71%63%64%71%79%86%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Porto

As October rolls into Porto, Portugal, the UV Index settles at a respectable 6, classifying it as a high exposure month. This marks a noticeable shift from the previous summer’s extremes, where values soared to 11 in June and 10 in July. While the days may be shorter and cooler, it's still essential to stay mindful of sun exposure, as a burn time of just 25 minutes can lead to skin damage, especially for those with fair complexions. The trend clearly illustrates a gradual decline from the intense summer sun, yet October still offers ample warmth and sunshine. For more detailed insights on daily UV levels, check out Porto UV Index.

Maximum UV Index Levels in Porto for October

The chart shows the monthly maximum UV Index (UVI) for Porto 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.
JanFebMarAprMayJunJulAugSepOctNovDec24689111098642
Data source: Porto 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 Porto

In October, Porto, Portugal, basks in a delightful 302 hours of sunshine, marking a gentle transition into autumn. This month stands out as a bridge between the vibrant summer days, which peak at 427 hours in July, and the cooler, cloudier winter months that follow, dropping to 206 hours in November. As the sunlight begins to wane, October offers a perfect opportunity to enjoy the city’s enchanting landscapes bathed in the soft glow of autumn light. With sunshine decreasing gradually from the summer highs, locals and visitors alike can relish the warm hues of fall while exploring Porto’s rich culture and stunning vistas—making it an ideal time to appreciate the city's charm before the winter chill sets in.

Monthly Sunshine Duration in Porto: October Highlighted

The October sunshine duration represents the total number of hours Porto 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.
JanFebMarAprMayJunJulAugSepOctNovDec159h210h286h344h405h407h427h396h346h302h206h182h
Data source: Porto October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Porto During October

In October, Porto, Portugal, experiences a 42% chance of sunny weather, which aligns with the city's performance in both January and September. This month marks a subtle decline from the summer's peak sunshine in August, where the chances soar to 64%. As autumn sets in, October offers a refreshing balance between the lingering warmth of summer and the crispness of approaching winter, making it an enjoyable time for visitors. Notably, while October shares its likelihood of sun with the early months of the year, it paves the way for a sunnier November, which boasts a 62% chance. So, if you're looking to catch some rays in autumn, Porto still offers a promising glimpse of sunshine throughout the month.

Percentage of Sunny Days in October in Porto

The chart illustrates the percentage of sunny days in Porto 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 Porto experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec42%17%56%39%46%55%57%64%42%42%62%34%
Data source: Porto October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Porto in October

As October arrives in Porto, Portugal, the city experiences a graceful transition in daylight duration. With 11 hours of daylight, this month marks a gentle decline from summer’s vibrant glow, peaking at 15 hours in June. Following the warmly lit days of summer, October’s daylight mirrors the earlier months of spring, signaling a seasonal shift as the long, bright evenings of July and August recede. This gradual reduction in sunlight continues into November, where daylight dips further to 9 hours, embodying the charm of autumn and inviting the cozy ambiance of the season.

Average Daylight Hours in Porto for October

The chart illustrates the variation in daylight duration in Porto throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 34m10h 37m11h 57m13h 20m14h 29m15h 4m14h 46m13h 44m12h 25m11h 3m9h 51m9h 15m
Data source: Porto daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Porto

As October arrives in Porto, Portugal, the wind begins to whisper a change in the air, with an average speed of 2.9 m/s (7 mph). This gentle breeze marks a slight increase from the preceding summer months, where July saw winds at 3.2 m/s and August dipped to 2.7 m/s. The transition into autumn is subtle yet noticeable, as the winds of October signal a shift towards the cooler, more dynamic months ahead. Interestingly, the winds maintain a more consistent pace compared to the fluctuations seen earlier in the year, particularly the gustier months of January and February, which average around 3.5 m/s and 4.1 m/s respectively. Overall, October’s moderate winds set the perfect backdrop for leisurely strolls along Porto's picturesque waterfront, inviting both locals and visitors to embrace the beauty of the season.

Average October Wind Speed in Porto

The chart displays monthly wind speed patterns in Porto, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.54.12.72.53.13.13.22.72.82.9 m/s2.83.8
Data source: Porto October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Porto Compares to Other Months

The weather in Porto 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 Porto and find detailed weather information for every month.

October and January present distinct weather patterns. In October, temperatures can range from a low of 6°C (44°F) to a high of 31°C (88°F), with an average temperature of 17°C (62°F). The month experiences 121 mm (4.8 in) of precipitation over about 10 days, coupled with a humidity level of 79%. In contrast, January is generally cooler, featuring a temperature range from 0°C (32°F) to 21°C (69°F) and an average of 9°C (49°F). Although it has slightly less precipitation at 91 mm (3.6 in) over 8 days, the humidity is slightly higher at 87%. For more specific details on January weather, visit Porto weather in January.

October and February present distinct weather patterns in Porto. October typically experiences milder temperatures, with averages around 17°C (62°F) and highs reaching up to 31°C (88°F), while February tends to be cooler, averaging 11°C (52°F) with a maximum of 21°C (71°F). Precipitation levels are quite similar, with October seeing around 121 mm (4.8 in) over 10 days, compared to February's 138 mm (5.4 in) over 11 days. Humidity levels are also comparable, hovering around 79% in October and slightly increasing to 81% in February. For more details on February's climate, visit Porto weather in February.

In October, the weather showcases a much wider temperature range, with minimums around 6°C and maximums reaching 31°C, yielding an average of 17°C. In contrast, March sees cooler average temperatures, ranging from a minimum of 3°C to a maximum of 26°C, averaging at 12°C. While both months experience considerable precipitation—121 mm in October and 141 mm in March—October has slightly fewer rainy days (10) compared to March's 11 days. Humidity levels remain fairly similar, with October at 79% and March at 78%. For more detailed insights, check out Porto weather in March.

October and April present distinct weather patterns, each characterized by their unique temperature and precipitation profiles. In October, temperatures range from a minimum of 6°C (44°F) to a maximum of 31°C (88°F), with an average of 17°C (62°F). It experiences about 121 mm (4.8 in) of rainfall over roughly 10 days, while maintaining a humidity level of 79%. In contrast, April sees slightly cooler conditions, with temperatures from a minimum of 4°C (40°F) to a maximum of 27°C (81°F) and an average of 14°C (58°F). Precipitation is higher in April, surpassing October at 146 mm (5.7 in) over approximately 13 days, yet humidity remains consistent at 79%. For a more detailed look into the weather patterns, check the Porto weather in April.

October and May feature similar average temperatures, with both months experiencing a minimum temperature around 6°C (44°F) and an average of approximately 17°C (62°F). However, October tends to be slightly warmer at its maximum temperature, reaching up to 31°C (88°F), compared to May's 30°C (87°F). In terms of precipitation, October is wetter, receiving 121 mm (4.8 in) over about 10 days, whereas May sees 81 mm (3.2 in) over 9 days. Humidity levels are also comparable, with October at 79% and May at 78%. For a detailed look at what to expect, check out Porto weather in May.

In comparing the weather between June and October, June typically offers slightly warmer temperatures, with lows around 10°C (50°F) and highs reaching up to 32°C (90°F), as opposed to October's lower minimum of 6°C (44°F) and warmer maximum of 31°C (88°F). Both months experience about 8 to 10 days of precipitation, but October sees significantly more rainfall at 121 mm (4.8 in) compared to June's 50 mm (2.0 in). Furthermore, October has higher humidity levels at 79%, while June's humidity is a bit lower at 71%. For a more detailed look at the weather specifics in June, you can visit Porto weather in June.

When comparing the weather in October to that of July, it's clear that October experiences a broader temperature range, with minimums dropping to 6°C (44°F) and highs reaching up to 31°C (88°F), resulting in an average temperature of 17°C (62°F). In contrast, July is generally warmer, starting at a minimum of 11°C (52°F) and reaching maximums of 34°C (94°F), with an average of 21°C (70°F). Precipitation is significantly higher in October, with 121 mm (4.8 in) over 10 days, while July sees only 23 mm (0.9 in) of rainfall across just 4 days. Additionally, October tends to be more humid, with levels at 79%, compared to July's 63%. For more insights, you can check Porto weather in July.

October presents a more varied temperature range compared to August, with minimums dipping to 6°C (44°F) and maximums reaching up to 31°C (88°F). In contrast, August typically enjoys warmer temperatures, with a minimum of 12°C (54°F) and maximums soaring to 36°C (98°F). Additionally, October experiences significantly higher precipitation, averaging 121 mm (4.8 in) over about 10 days, whereas August is relatively dry, with only 19 mm (0.7 in) falling over just 4 days. This results in October being more humid, with an average of 79%, compared to August's 64%. For a more detailed look at summer weather, check out Porto weather in August.

In comparing the weather patterns of October and September, October typically experiences cooler temperatures, with a minimum of 6°C (44°F) and an average of 17°C (62°F), while September sees milder conditions with a minimum of 10°C (51°F) and an average of 20°C (68°F). Although temperatures can reach a high of 31°C (88°F) in October, it generally averages around 17°C (62°F), a noticeable drop from September’s peak of 34°C (94°F). Moreover, October is significantly wetter, with precipitation measuring 121 mm (4.8 in) over 10 days, compared to September's 39 mm (1.5 in) over just 6 days. Additionally, October tends to be more humid, with humidity levels around 79% compared to September's 71%. For more details on September weather, check out Porto weather in September.

October and November present distinct shifts in weather patterns. October enjoys milder temperatures, with averages reaching up to 31°C (88°F), although it also brings about 121 mm (4.8 in) of rain over an average of 10 days. In contrast, November sees a drop in temperatures, with highs only reaching 21°C (71°F), while precipitation increases to 156 mm (6.1 in) across about 13 days. Additionally, humidity levels rise in November to 86%, compared to October's 79%. For more details on November weather specifics, you can check Porto weather in November.

In October, temperatures range from a minimum of 6°C (44°F) to a maximum of 31°C (88°F), with an average of 17°C (62°F). The month sees about 121 mm (4.8 in) of precipitation spread over 10 days, accompanied by a humidity level of 79%. In contrast, December features cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 18°C (65°F), averaging around 11°C (52°F). Precipitation increases to 187 mm (7.4 in) over 15 days, and humidity rises slightly to 87%. The shift from October to December marks a distinct transition to cooler and wetter weather patterns, making for a noticeable difference in climate. For more details on December weather in Porto, check out Porto weather in December.

Compare Porto's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Porto

As October unfolds in Porto, the weather gradually transitions from the warmth of summer to the cool embrace of autumn, making it a unique month to experience the city. While daytime temperatures can reach a pleasant 31°C (88°F), cooler evenings bring an average of 17°C (62°F), inviting cozy layers and warm drinks. This month also sees an increase in humidity at 79%, coupled with around 10 days of rainfall, which adds a refreshing touch to the vibrant foliage. Unlike the dry heat of summer, October's more temperate climate offers a delightful balance, perfect for exploring the city's rich culture. For a more comprehensive understanding of how Porto's weather evolves throughout the year, visit Porto Climate.