March Weather in Porto, Portugal

Last updated: February 24, 2025

In March, Porto, Portugal experiences a delightful transition into spring, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 26°C (79°F), yielding an average of 12°C (54°F). This month is characterized by 141 mm (5.6 in) of precipitation over 11 days, contributing to the region's lush landscapes. The humidity averages 78%, enhancing the fresh and invigorating atmosphere that accompanies the blossoming season. Visitors can expect a mix of sunny days and occasional rain, making it an ideal time to explore the city’s vibrant culture and scenic views.

March Temperature in Porto

As March unfolds in Porto, Portugal, the city begins its gentle transition into spring, showcased by a minimum temperature of 3°C (38°F) and an average of 12°C (54°F). The warmth intensifies as the month progresses, reaching a maximum of 26°C (79°F), making it one of the most pleasant months for outdoor activities. After the cooler grip of winter, the gradual climb in temperatures suggests longer, sunnier days, inviting locals and visitors alike to explore the vibrant streets and scenic waterfront. March not only marks a rise in warmth but also hints at the approaching summer, encouraging a lively atmosphere throughout this picturesque city.

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

The chart illustrates March 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.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Porto

In March, Porto, Portugal experiences a notable rise in precipitation, with an average of 141 mm (5.6 in) falling over 11 days. This increase reflects a gradual transition from the wetter months of January and February, setting the stage for an even rainier April, which sees 146 mm (5.7 in). Interestingly, while March has similar precipitation days to numerous earlier months, it stands out for its cumulative rainfall, hinting at a shift towards the spring season where showers become more pronounced. This trend highlights the region's characteristic wet climate as winter gives way to the budding vibrancy of spring, making March an intriguing month for both weather patterns and the lush landscapes that emerge.

March Precipitation Trends in Porto

The chart displays monthly precipitation patterns in Porto, with values for each month alongside March's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec911381411468150231939121156187
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Porto

In March, Porto, Portugal, experiences a moderate humidity level of 78%, marking a gradual decline from the colder months of January and February, which see humidity peaks of 87% and 81%, respectively. This slight decrease indicates the city's transition into spring, where milder temperatures often accompany lower humidity. As the year progresses, April and May maintain similar levels of humidity at 79% and 78%, creating a comfortable atmosphere for outdoor activities. Notably, by June, humidity levels drop significantly to 71%, hinting at the dry warmth of summer ahead. This trend reflects Porto's seasonal evolution, ensuring the city remains a delightful destination throughout the year.

March Average Humidity in Porto

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

March UV Index in Porto

As March arrives in Porto, Portugal, the sun’s intensity begins to ramp up, with the UV Index climbing to 6, categorized as high. This marks a noticeable shift from the more moderate levels seen in February. Consequently, the burn time decreases to just 25 minutes, indicating a greater need for sun protection during outdoor activities. The trend continues upward as the region moves into spring, signaling budding outdoor adventures while reminding everyone to stay aware of UV exposure. For more insights on solar radiation levels, check the details here: Porto UV Index.

Maximum UV Index Levels in Porto for March

The chart shows the monthly maximum UV Index (UVI) for Porto in March, 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 March 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.

March Sunshine in Porto

As March unfolds in Porto, the days grow longer and sunnier, bringing a delightful 286 hours of sunshine to the city. This is a noticeable increase from the previous months, showcasing a clear trend as the warmth of spring begins to replace winter's chill. Following January's 159 hours and February's 210 hours, March marks a significant leap towards brighter days, paving the way for April's even sunnier 344 hours. The gradual climb of sunshine hours not only brightens the landscape but also energizes the vibrant culture of Porto, inviting locals and visitors alike to bask in the beauty of the blooming season. With each passing month leading up to summer, Porto becomes a canvas painted with rays of sunshine, making it an enchanting destination for those seeking both warmth and inspiration.

Monthly Sunshine Duration in Porto: March Highlighted

The March sunshine duration represents the total number of hours Porto experiences direct sunlight during the month of March, excluding cloudy or obstructed periods. This chart compares the sunshine duration of March with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec159h210h286h344h405h407h427h396h346h302h206h182h
Data source: Porto March Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Porto During March

In March, Porto, Portugal, greets spring with a notable leap in sunshine, boasting a 56% chance of sunny weather—a significant uptick from the meager 17% in February. This improvement sets the stage for a more cheerful atmosphere as winter fades, making way for brighter days ahead. Following March, the sun continues to shine intermittently, with April and May showing a moderate decline before summer's arrival in June and July, when the likelihood of sunshine peaks at 57%. Interestingly, the trend of sunny weather fluctuates throughout the year, with November achieving a surprising 62%, suggesting that Porto's weather can still defy expectations even as fall approaches. Overall, March stands out as an invigorating transitional month, inviting residents and visitors alike to relish in the burgeoning warmth and light.

Percentage of Sunny Days in March in Porto

The chart illustrates the percentage of sunny days in Porto throughout the year, with March 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 March chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Porto in March

As March unfolds in Porto, Portugal, the days begin to stretch, offering 11 hours of daylight—an inviting increase that marks the arrival of spring. This progression is a delightful shift from the 10 hours in February, signaling a gradual awakening from winter's slumber. The increasing daylight not only enhances the vibrant cityscape but also encourages outdoor activities, as residents and visitors alike relish the longer evenings. Following March, the days will continue to lengthen, peaking in June with 15 hours of sunshine, creating a beautiful rhythm of daylight that nurtures the spirit and activity of this charming coastal city.

Average Daylight Hours in Porto for March

The chart illustrates the variation in daylight duration in Porto throughout the year, with March 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.

March Winds in Porto

As March arrives in Porto, Portugal, the gentle whispers of the wind begin to usher in the spring season. With an average wind speed of 2.7 m/s (6 mph), March experiences a noticeable dip compared to the previous months, where January and February saw stronger gusts averaging 3.5 m/s and 4.1 m/s respectively. This slight calmness is a precursor to the milder breezes of April, which continue to hover around the same speed. As the spring unfolds, the transition is marked not only by the waning winds but also by a refreshing optimism in the air, anticipating the warmer months ahead. The overall trend indicates a gradual decrease in wind speed from the early months of the year, setting the perfect stage for enjoying Porto’s vibrant outdoor atmosphere.

Average March Wind Speed in Porto

The chart displays monthly wind speed patterns in Porto, with values for each month shown alongside March's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how March's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.54.12.7 m/s2.53.13.13.22.72.82.92.83.8
Data source: Porto March wind data, generated using information from the Copernicus Climate Change Service.

How March 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 March'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.

The weather in March is generally milder than in January, with average temperatures rising from January's 9°C (49°F) to 12°C (54°F). March experiences a broader temperature range, peaking at 26°C (79°F), while January's maximum is capped at 21°C (69°F). Additionally, March sees more precipitation, totaling 141 mm (5.6 in) over 11 days, compared to January's 91 mm (3.6 in) across 8 days. Humidity is slightly lower in March at 78% versus 87% in January, creating a more comfortable atmosphere as spring approaches. For a closer look at January's weather, you can visit Porto weather in January.

In comparison, March experiences slightly warmer temperatures than February, with a minimum of 3°C (38°F) and a maximum of 26°C (79°F), while February has a minimum of 1°C (34°F) and a maximum of 21°C (71°F). The average temperature in March is 12°C (54°F), compared to February's average of 11°C (52°F). Precipitation levels are quite similar, with March recording 141 mm (5.6 in) and February slightly lower at 138 mm (5.4 in), both across 11 days of rain. However, humidity is marginally lower in March at 78%, compared to February's 81%. For more details, you can check Porto weather in February.

In March, temperatures range from a minimum of 3°C (38°F) to a maximum of 26°C (79°F), with an average temperature of 12°C (54°F). The month experiences significant precipitation, totaling 141 mm (5.6 in) over 11 days, while humidity hovers around 78%. In contrast, April sees slightly warmer temperatures, with a minimum of 4°C (40°F), an average of 14°C (58°F), and a maximum of 27°C (81°F). Notably, April has a bit more precipitation at 146 mm (5.7 in) across 13 days, and humidity remains similar at 79%. For more detailed weather information, you can check Porto weather in April.

March and May exhibit distinct differences in weather patterns. In March, temperatures range from a minimum of 3°C (38°F) to a maximum of 26°C (79°F), with an average of 12°C (54°F). This month also sees higher precipitation, with 141 mm (5.6 in) falling over 11 days, contributing to a humidity level of 78%. Conversely, May experiences warmer temperatures, with a minimum of 6°C (43°F) and a maximum of 30°C (87°F), resulting in an average temperature of 17°C (63°F). Additionally, May sees a decrease in precipitation to 81 mm (3.2 in) over just 9 days, yet the humidity remains consistent at 78%. For more details on the specific climate conditions in May, you can check Porto weather in May.

In March, the weather is cooler with average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 26°C (79°F), while June offers warmer conditions, with temperatures starting at a minimum of 10°C (50°F) and peaking at 32°C (90°F). Precipitation is significantly higher in March, with 141 mm (5.6 in) expected over 11 days, compared to just 50 mm (2.0 in) over 8 days in June. Additionally, humidity is slightly higher in March at 78%, while June sees a more comfortable 71%. For a closer look at what to expect during this warmer month, check out Porto weather in June.

When comparing the weather in March and July, notable differences emerge. In March, temperatures range from a chilly minimum of 3°C (38°F) to a warmer maximum of 26°C (79°F), with an average temperature of 12°C (54°F). The month experiences significant precipitation, totaling 141 mm (5.6 inches) over approximately 11 days, contributing to a high humidity of 78%. In contrast, July offers milder conditions, with minimum temperatures around 11°C (52°F) and maximums reaching 34°C (94°F), resulting in an average of 21°C (70°F). Rainfall decreases dramatically to just 23 mm (0.9 inches) over 4 days, and humidity is lower at 63%. For more specific details about July weather, you can visit Porto weather in July.

March and August showcase contrasting weather patterns in terms of temperature and precipitation. In March, temperatures range from a chilly minimum of 3°C (38°F) to a pleasant average of 12°C (54°F), peaking at a maximum of 26°C (79°F). It is also a wetter month, with about 141 mm (5.6 in) of rain spread over 11 days, resulting in a relatively high humidity of 78%. In stark contrast, August features much warmer conditions, with temperatures ranging from a minimum of 12°C (54°F) to an average of 21°C (70°F), reaching highs of 36°C (98°F). Precipitation is significantly lower in August, totaling only 19 mm (0.7 in) over just 4 days and a reduced humidity level of 64%. For more details on the conditions during this month, visit Porto weather in August.

March and September present distinct weather characteristics, with March typically cooler and wetter than September. In March, temperatures range from a chilly minimum of 3°C (38°F) to a pleasant average of 12°C (54°F), peaking at 26°C (79°F). This month experiences significant rainfall, with precipitation totaling 141 mm (5.6 in) across about 11 days and humidity levels around 78%. In contrast, September enjoys warmer temperatures, with a minimum of 10°C (51°F), an average of 20°C (68°F), and highs reaching up to 34°C (94°F). Rainfall is considerably less at 39 mm (1.5 in) over just 6 days, and humidity decreases to 71%. For more details about September weather specifically, you can check Porto weather in September.

March and October exhibit distinct weather patterns, reflecting the transition of seasons. In March, temperatures range from a chilly minimum of 3°C (38°F) to a comfortable average of 12°C (54°F), with highs reaching up to 26°C (79°F). This month experiences approximately 141 mm (5.6 in) of rainfall over 11 days, coupled with a humidity level of 78%. In contrast, October showcases milder temperatures, with a minimum of 6°C (44°F) and an average of 17°C (62°F), peaking at 31°C (88°F). Although October sees slightly less precipitation at 121 mm (4.8 in) over 10 days, the humidity remains similar at 79%. For more detailed insights, check out Porto weather in October.

In comparing the weather of March and November, we see a gradual transition in temperatures and precipitation. March typically sees average temperatures ranging from 3°C (38°F) to a max of 26°C (79°F), while November maintains slightly cooler averages with temperatures ranging from 4°C (40°F) to a max of 21°C (71°F). Precipitation levels are comparable, with March experiencing about 141 mm (5.6 in) over 11 days, while November receives a bit more, totaling 156 mm (6.1 in) across 13 days. Additionally, humidity is higher in November at 86%, compared to March’s 78%. For more detailed insights, check out Porto weather in November.

March and December showcase distinct weather patterns in Porto. In March, temperatures range from a minimum of 3°C (38°F) to a maximum of 26°C (79°F), with an average of 12°C (54°F). The month experiences about 141 mm (5.6 in) of precipitation over 11 days, and humidity stands at 78%. In contrast, December has cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 18°C (65°F), averaging 11°C (52°F). This month is wetter, seeing 187 mm (7.4 in) of precipitation spread over 15 days, and with higher humidity at 87%. For more insights on Porto's December weather, check out Porto weather in December.

Compare Porto's Climate with Cities Worldwide

Conclusion: What to Expect From March Weather in Porto

As March rolls into Porto, the city begins to shake off the chill of winter, with noticeable fluctuations in temperature creating a delightful contrast to the harsher months preceding it. While it can still dip to a brisk 3°C at night, daytime temperatures see a rise, occasionally reaching a pleasant 26°C. However, the month is also characterized by increased humidity and a fair amount of rainfall, with about 11 days of precipitation contributing to 141 mm of moisture. This blend of cool and mild days, coupled with the fresh spring air, makes March a unique time to experience Porto's vibrant landscape. For those looking to plan their visit, more insight into Porto's annual weather can be found at Porto Climate.