Vila Franca de Xira Climate & Monthly Temperature Overview – Portugal

Temperature and Precipitation

Vila Franca de Xira enjoys a pleasant Mediterranean climate, characterized by warm, dry summers and mild, rainy winters. Average temperatures range from 10°C (50°F) in January to 25°C (77°F) in August. The city receives an average annual rainfall of around 700 mm (27.6 in), with most precipitation occurring during the winter months.

Seasonal Variations

During the summer months, Vila Franca de Xira experiences long periods of sunshine and little rainfall. The sun shines an average of 9-10 hours per day, and the humidity is relatively low. This makes it an ideal destination for those seeking a warm, summer getaway. In the winter, temperatures drop and precipitation increases. However, the city still enjoys an average of 4-5 hours of sunshine per day, and snow is rare. Spring and autumn are transition periods with mild temperatures and occasional rainfall.

Monthly Average Temperature

Vila Franca de Xira, Portugal experiences a mild Mediterranean climate with distinct seasonal variations in temperature. The warmest months are July and August, with average temperatures reaching between 28-30°C (82-86°F). The coldest months are January and February, with average temperatures hovering around 10-12°C (50-54°F).

Seasonal Temperature Trends

Spring (March-May) witnesses a gradual increase in temperature, ranging from 13-20°C (55-68°F). Autumn (September-November) brings a gradual decline, with temperatures dropping from 25-15°C (77-59°F). During winter (December-February), temperatures remain relatively low, sometimes dipping below freezing at night. Summer (June-August) is characterized by high temperatures, abundant sunshine, and occasional heatwaves.

Cloud Cover Characteristics

Vila Franca de Xira, Portugal, experiences a variety of cloud cover conditions throughout the year. In the cooler months, from October to April, the area tends to have more overcast days with higher amounts of cloud cover. During this period, the average cloud cover can range from 60-80%, with prolonged periods of cloudy or overcast skies. However, during the warmer months, from May to September, the area experiences less cloud cover, with clearer and sunnier conditions. The average cloud cover during this time can drop to 20-50%, resulting in more frequent clear and partly cloudy days.

Cloud Type Variability

Vila Franca de Xira experiences a variety of cloud types depending on the time of year and prevailing weather conditions. Cumulus clouds are common during the summer months and often bring clear and sunny weather. Stratus clouds tend to form during the winter months and are associated with overcast skies and occasional drizzle or light rain. Cirrus clouds can be present throughout the year and often indicate fair weather conditions. Additionally, during the transitional periods between seasons, the area may experience a mix of cloud types, including altostratus, which can bring a combination of sunshine and cloud cover, and nimbostratus, which can bring prolonged periods of rain or snow.

Annual Precipitation

Vila Franca de Xira, Portugal, experiences a Mediterranean climate characterized by hot, dry summers and mild, wet winters. The annual precipitation in the city averages around 580 millimeters (22.8 inches). Precipitation is concentrated during the winter months (October to March), with January being the wettest month. During this time, the city can experience heavy rainfall, especially during the passage of mid-latitude cyclones. In summer (June to August), precipitation is scarce, and the city often experiences prolonged periods of drought.

Variability and Recent Trends

The annual precipitation in Vila Franca de Xira exhibits significant variability from year to year. This variability is primarily driven by the North Atlantic Oscillation (NAO), a large-scale atmospheric circulation pattern that influences precipitation patterns across Europe. During positive NAO years, the city tends to receive more precipitation, while during negative NAO years, precipitation is reduced. In recent decades, Vila Franca de Xira has experienced a slight increase in annual precipitation, primarily due to an increase in winter rainfall. Climate change is expected to further alter precipitation patterns in the region, with projections indicating an increase in extreme precipitation events and a reduction in summer precipitation.

Average Rainfall Patterns

Vila Franca de Xira, Portugal, experiences a Mediterranean climate with hot, dry summers and mild, rainy winters. The city receives an average of 600-700 mm of rain annually. The wet season spans from October to May, with November and February being the rainiest months. During this time, Vila Franca de Xira witnesses frequent storms and heavy downpours. Conversely, the summer months (June to September) are generally dry, with little to no rainfall. August is typically the driest month of the year.

Seasonal Variations and Climate Change

The distribution of rainfall in Vila Franca de Xira varies significantly throughout the year. Winter precipitation contributes approximately 60% of the annual total, while the remaining 40% falls during the summer months. However, climate change poses challenges to the city’s rainfall patterns. Rising temperatures have led to an increase in the frequency and intensity of extreme rainfall events, such as flash floods and torrential downpours. Additionally, changes in precipitation patterns have resulted in longer dry spells during the summer and heavier rainfall during the winter. These shifts have implications for water resources management, agriculture, and flood prevention strategies in the region.

Unusual Occurrence

On January 10, 2023, a rare phenomenon occurred in Vila Franca de Xira, Portugal, a town located near Lisbon. Snowfall, an uncommon sight in the region, blanketed the town in a thin layer of white. The snowfall was the result of an unusual weather pattern that brought cold air from the north and moisture from the Atlantic Ocean. The last time significant snowfall was recorded in the town was in 2006, making this event even more remarkable.

Impact on the Community

The snowfall brought a sense of wonder and excitement to the community. Children and adults alike took to the streets, building snowmen and engaging in snowball fights. However, the snowfall also caused some disruption, as roads became slippery and visibility was reduced. Nevertheless, the community spirit prevailed, with people helping each other clear snow from sidewalks and roadways. The snowfall served as a reminder of the unpredictable nature of weather and the beauty that can sometimes be found in the unexpected.

Climate Overview and Historical Data

Vila Franca de Xira, located in western Portugal, experiences a Mediterranean climate characterized by warm, dry summers and mild, wet winters. The city enjoys an abundance of sunshine year-round, with an average of 2,800 hours annually. Historical data shows that July and August are the sunniest months, boasting an average of 10-11 hours of sunshine per day. In contrast, December and January are the cloudiest, receiving around 5-6 hours of sunshine daily.

Seasonal Variations

The sun’s intensity and duration in Vila Franca de Xira vary significantly throughout the year. During the summer months, the sun rises early and sets late, providing long days filled with intense sunlight. The high solar radiation levels often result in temperatures exceeding 30°C (86°F). In contrast, winter days are shorter, and the sun is lower in the sky. While temperatures remain mild, the reduced sunlight can lead to overcast conditions and occasional periods of drizzle. However, even in winter, Vila Franca de Xira still receives a respectable amount of sunshine, making it a relatively sunny destination all year round.

Moonrise and Moonset Times

In Vila Franca de Xira, Portugal, the moonrise and moonset times vary throughout the year. During the summer months (June-August), the moon rises later in the evening and sets earlier in the morning. In the winter months (December-February), the moon rises earlier in the evening and sets later in the morning. For example, on June 21st, the summer solstice, the moon rises at 22:37 local time and sets at 05:14 local time. On December 21st, the winter solstice, the moon rises at 17:26 local time and sets at 07:38 local time.

Moon Phases

The moon goes through different phases as it orbits the Earth. These phases are: new moon, waxing crescent moon, first quarter moon, waxing gibbous moon, full moon, waning gibbous moon, third quarter moon, and waning crescent moon. The moon’s phase can be observed from Vila Franca de Xira, and it changes gradually over the course of about 29.5 days. During the new moon phase, the moon is not visible from Earth. During the full moon phase, the entire moon is illuminated by sunlight. The other phases show different portions of the moon illuminated, depending on the moon’s position in its orbit around Earth.

Seasonal Variations in Humidity

The humidity levels in Vila Franca de Xira exhibit distinct seasonal variations. During the summer months, from June to September, the relative humidity remains relatively low, ranging between 50% and 70%. This period is characterized by warm and sunny weather, with occasional breezes that help to reduce moisture levels. However, during the winter months, from October to May, the humidity level rises significantly, reaching an average of 80% to 90%. The cold and rainy conditions prevalent during this time create a conducive environment for moisture retention.

Impact of Geographical Factors

Vila Franca de Xira’s proximity to the Atlantic Ocean plays a significant role in shaping its humidity levels. The city is located approximately 20 kilometers from the coast, which means that it still experiences the influence of the ocean’s moisture. The prevailing wind patterns carry moist air from the ocean inland, contributing to the high humidity levels during the winter months. Additionally, Vila Franca de Xira is situated in a relatively flat and low-lying area, which further inhibits the dispersal of moisture. As a result, the humidity levels tend to remain elevated throughout much of the year.

Wind Speed in Vila Franca de Xira, Portugal

Vila Franca de Xira, a city on the outskirts of Lisbon, Portugal, experiences moderate wind speeds throughout the year. The average wind speed is around 10 kilometers per hour (6 miles per hour), with higher speeds during the winter months. During the summer, wind speeds tend to be lower, around 5-7 kilometers per hour (3-4 miles per hour). The windiest months are January and February, with average wind speeds of 12-15 kilometers per hour (7-9 miles per hour). The calmest months are July and August, with average wind speeds of 5-7 kilometers per hour (3-4 miles per hour).

Wind Direction in Vila Franca de Xira, Portugal

The prevailing wind direction in Vila Franca de Xira is from the west-northwest. This is due to the city’s location on the Atlantic coast, which allows for the free flow of wind from the ocean. During the winter months, the wind direction can shift to the north-northeast, bringing colder air from the interior of Portugal. In the summer, the wind direction can shift to the southwest, bringing warmer air from the Mediterranean Sea. Additionally, localized topographic features, such as the Tagus River and the Serra da Arrábida mountains, can influence the wind direction in certain areas of the city.

Spring (March-May)

Spring in Vila Franca de Xira offers a delightful blend of warm temperatures and fewer tourists. With average temperatures ranging from 10°C to 20°C, it’s ideal for exploring the town’s historic center, admiring the vibrant street art, and visiting the renowned Museu Municipal Manuel Firmino. The blooming jacaranda trees line the streets, creating a picturesque ambiance.

Autumn (September-November)

Autumn in Vila Franca de Xira is a season of transition, with gradually cooling temperatures and a touch of the golden hue of autumn. The town’s annual Feira do Ribatejo, one of the largest agricultural fairs in Portugal, showcases traditional crafts, regional cuisine, and cultural performances. The nearby Reserva Natural do Estuário do Tejo provides opportunities for birdwatching and nature walks, as migratory birds stop over during their journey south.

Solar Potential

Vila Franca de Xira, situated in the sun-drenched region of Lisbon, Portugal, boasts exceptional solar potential. The municipality receives an average of 2,900 sunshine hours annually, with clear skies during most of the year. This abundance of sunlight provides Vila Franca de Xira with ample opportunities for harnessing solar energy.

Solar Technology Adoption

Recognizing the potential of solar energy, Vila Franca de Xira has implemented various initiatives to promote its adoption. The municipality has installed solar panels in numerous municipal buildings, schools, and social housing complexes. Additionally, the Vila Franca de Xira Solar Plan incentivises private businesses and residents to adopt solar technology. Through subsidies and other support measures, the plan aims to increase the municipality’s installed solar capacity and reduce its reliance on fossil fuels.

Topography of the North Zone

The northern zone of Vila Franca de Xira is characterized by relatively flat terrain with gentle slopes, interspersed with a network of rivers, canals, and streams. The area is predominantly rural, featuring fertile agricultural lands and scattered pockets of woodland. The main rivers in the north include the Tagus River, which forms the northern boundary of the municipality, the Trancão River, and the Alpriate River. These waterways provide irrigation for agriculture and support diverse plant and animal life.

Topography of the South Zone

In contrast to the north, the southern zone of Vila Franca de Xira exhibits a more varied topography. The western part of the south zone is dominated by the Montejunto mountain range, which rises to an elevation of over 600 meters and offers panoramic views of the surrounding countryside. The Serra do Risco mountain range also runs through the south zone, creating a series of steep slopes and valleys. The eastern part of the south zone is characterized by rolling hills and plateaus, with several small rivers and reservoirs scattered throughout the area.

Nearest Airport: Humberto Delgado Airport (LIS)

The nearest airport to Vila Franca de Xira, Portugal, is Humberto Delgado Airport (LIS), also known as Lisbon Airport. It is located approximately 16 kilometers (10 miles) southwest of the city center and offers the most convenient air travel options for visitors. LIS is a major international airport with direct flights to destinations in Europe, North America, Africa, and Asia. It is served by several major airlines, including TAP Air Portugal, Ryanair, and easyJet. The airport features a modern terminal with ample facilities, including duty-free shopping, restaurants, and currency exchange services.

Alternative Airport: Francisco Sá Carneiro Airport (OPO)

A second airport that may be considered for travel to Vila Franca de Xira is Francisco Sá Carneiro Airport (OPO), also known as Porto Airport. It is located approximately 230 kilometers (143 miles) north of the city center. OPO offers a smaller selection of direct flights compared to LIS, but it may be a more convenient option for travelers who are based in the northern part of Portugal. The airport features a single terminal with basic amenities, including a few restaurants, shops, and duty-free options. Transportation from OPO to Vila Franca de Xira can be arranged by bus or train, with a travel time of approximately 2-3 hours.

History and Culture

Vila Franca de Xira is a picturesque town in the Lisbon District of Portugal, steeped in a rich history dating back to the Middle Ages. Its origins can be traced to a Roman settlement, and over the centuries, it has been influenced by various civilizations, including the Moors and the Portuguese. The town’s name, meaning “Free Town on the Xira River,” reflects the privileges granted to its inhabitants by King Dom Dinis in the 13th century. Today, Vila Franca de Xira is known for its cultural heritage, including its traditional festivals, such as the Festa do Colete Encarnado (Red Waistcoat Festival) and the Festa do Touro (Bull Festival), which showcase the town’s vibrant folk culture and lively atmosphere.

Economy and Infrastructure

Vila Franca de Xira is a hub for industry and commerce, contributing significantly to the region’s economy. It is home to various industrial zones, including the Polígono Industrial do Fogueteiro, which houses important national and international companies in sectors such as food processing, textiles, and automotive manufacturing. The town’s strategic location along the Tagus River and its proximity to major transportation routes, including the A1 motorway and the Lisbon International Airport, facilitate its economic connections. Vila Franca de Xira also has a well-developed infrastructure, including modern healthcare facilities, educational institutions, and recreational amenities, providing a high quality of life for its residents and visitors alike.