Last updated: April 14, 2025
Portugal boasts a diverse climate that varies significantly across its regions, providing both extremes and moderation. The country experiences winter temperatures that can plunge to a chilling -6°C (22°F) in January in Vila Real, while summer can bring scorching highs of 46°C (115°F) in August in Évora. Rainfall patterns are equally varied, with a minimum of just 1 mm (0.0 in) of precipitation in August in Faro, contrasting sharply with winter months that can see up to 249 mm (9.8 in) in December in Viana do Castelo. Humidity levels range from a dry average of 52% in August in Bragança to a saturated maximum of 91% in December, adding another layer to the climatic tapestry of this Iberian nation.
Portugal boasts a diverse climate characterized primarily by the Köppen-Geiger classification. The coastal regions, such as Aveiro and Porto, enjoy a mild Csb climate, with cool summers and wet winters. Moving inland, the climate transitions to the warmer Csa category, evident in areas like Beja and Lisbon, where hot, dry summers are complemented by mild, wet winters. The Azores and Madeira islands showcase a mix of Csa, Csb, and Cfb climates, creating a unique microclimate influenced by the Atlantic Ocean. Other regions like Braga, Guarda, and Évora reveal a blend of both mild and hot climates, offering a rich tapestry of weather variations across this beautiful country. Explore the climate specifics further for each region using the links provided!
| Climate Zone | Description |
|---|---|
| Cfb | Oceanic climate with mild temperatures and moderate rainfall year-round. |
| Csa | Hot-summer Mediterranean climate with dry summers and wet winters. |
| Csb | Warm-summer Mediterranean climate with dry summers and wet winters. |
Portugal's temperatures showcase a dramatic shift throughout the year, from the frost of winter to the sweltering heat of summer. January and February see chilly minimums around -6°C (22°F) in Vila Real and -4°C (25°F) in Vila Real respectively, but temperatures begin their ascent as March ushers in a maximum of 29°C (85°F) in Santarém. By April, warmth grows with highs peaking at 31°C (88°F) in Lisbon, intensifying in May when Santarém can reach a scorching 38°C (100°F). The heat escalates further in June and July, where temperatures soar to 44°C (111°F) in Lisbon and Beja. August delivers even more extremes, with Évora breaking records at 46°C (115°F). Autumn brings a slight reprieve, with September temperatures still hitting 39°C (102°F) in Beja, followed by the cooler October, where lows can dip -1°C (31°F) in Guarda. As the year closes, November and December once again cool down, reminding us of winter's approach with lows around -5°C (24°F) in Bragança, though highs remain mild at 22°C (71°F) in Faro. This temperature range highlights Portugal's diverse climate and provides a captivating backdrop for any traveler seeking to experience its seasonal shifts.
Precipitation patterns in Portugal exhibit significant seasonal variations, with distinct trends that define each month. The driest conditions prevail in the summer, particularly in August when Faro experiences a minimum of just 1 mm of rain, while the month of July in the District of Setúbal can see no rain at all. In stark contrast, December marks the peak of the wet season, where Viana do Castelo receives a remarkable 249 mm of precipitation, and Braga experiences rain on as many as 16 days. This shift from dry summer months to the wet winter season underscores the dynamic climate of Portugal, influencing both the landscape and lifestyle across the country.
Portugal experiences notable fluctuations in humidity throughout the year, particularly evident in Bragança. In August, the humidity reaches a comfortable 52%, ideal for enjoying the warm summer months. However, as winter settles in, the humidity dramatically rises, peaking at 91% in December. This shift reflects the country’s transition from the drier summer heat to the damp, colder months, highlighting how seasonal changes significantly impact the climate in this region.
In June, Portugal experiences a notable spike in UV Index values, with Aveiro recording an average daily maximum of 11 and Madeira reaching an impressive 12. This trend highlights the increasing intensity of solar radiation during the summer months, emphasizing the importance of sun safety measures across the country. As these regions prepare for the peak of the season, understanding the UV Index becomes essential for both locals and visitors alike, ensuring they can enjoy the vibrant outdoors while minimizing the risk of overexposure to harmful UV rays.
UV Risk Categories
Portugal boasts a diverse range of sunshine durations that vary dramatically by region and season. In the heart of winter, Vila Real enjoys a modest 147 hours of sunshine in January, while Faro benefits from a more generous 201 hours, showcasing the country's southern regions' warmer climate. As summer approaches, this trend continues to amplify, with the Azores basking in an impressive 384 hours of sunshine in July, and Bragança leading the charge with a remarkable 434 hours. This stark contrast between winter and summer highlights Portugal's allure as a year-round destination for sun seekers, each locale offering its unique sun-kissed experience.
When considering the likelihood of sunny weather in Portugal, notable trends emerge across the seasons and regions. In February, Vila Real experiences a modest 15% chance of sunshine, reflecting the country’s cooler winter months. However, by July, this percentage skyrockets to an impressive 90% in Faro, showcasing the sun-soaked summer that attracts visitors from around the globe. This shift highlights Portugal's dramatic seasonal variation, making it an ideal destination for sun-seekers during the warmer months.
In Portugal, the contrast between winter and summer daylight hours is striking, especially in Viana do Castelo. In December, the days are short, offering just 9 hours of daylight, creating a cozy atmosphere ideal for enjoying local festivals and winter cuisine. As the seasons change and summer approaches, June brings a significant increase, with 15 hours of daylight illuminating the stunning landscapes and bustling coastal activities. This shift not only enhances outdoor adventures but also highlights the vibrant culture and warmth of Portugal during its sun-drenched months.
Aveiro, Portugal, experiences a climate that beautifully oscillates between refreshing winters and warm summers. January and February can dip as low as -4°C (25°F), accompanied by higher humidity levels around 87%, making it feel quite chilly. As spring blooms, temperatures gradually rise, peaking in July and August with sweltering highs around 39°C (103°F) and a delightful drop in humidity to 63%. However, the summer months have less precipitation, allowing for plenty of sunshine, while November and December bring increased rainfall, with December receiving about 172 mm (6.8 in) of rain. For those interested in the seasonal dance of weather patterns, check out the detailed information on Aveiro climate.
The Azores, Portugal, boasts a temperate maritime climate characterized by mild temperatures year-round and lush greenery that thrives in its humid environment. Winter months see averages around 16°C (60°F), while summers can rise to a warm 22°C (72°F), making the islands an ideal getaway. Rainfall tends to peak in November and December, with approximately 109 mm (4.3 in) and 121 mm (4.8 in), ensuring the landscapes remain vibrant and lush. Visitors can revel in the rich biodiversity and breathtaking scenery, all while enjoying the region's relatively stable weather patterns. For more details, check out the Azores climate.
Nestled in southern Portugal, Beja boasts a climate that evolves dramatically throughout the year. Winter months can dip to -3°C (27°F) in January, but as spring unfolds, temperatures soar, reaching a balmy 31°C (88°F) by April. The summer is characterized by intense heat, with temperatures peaking at an impressive 45°C (113°F) in August. Despite the warmth, rainfall is minimal in July and August, with July receiving merely 2 mm (0.1 in), making it one of the driest months. For more detailed insights about the weather patterns throughout the year, check out the full guide on Beja climate.
Braga, Portugal, experiences a diverse climate throughout the year, marked by mild winters and warm summers. With average temperatures ranging from a brisk 8°C (47°F) in January to a sizzling 38°C (101°F) in August, the city offers a comfortable atmosphere for all seasons. While precipitation is heaviest in the winter months—peaking in December at 226 mm (8.9 in)—the summer remains relatively dry, with July and August receiving just 25-26 mm (1.0 in). Humidity levels fluctuate, reaching up to 87% in winter but dropping to a pleasant 63% by mid-summer, allowing visitors to enjoy outdoor activities comfortably. For a deeper dive into the year-round weather patterns, check out the detailed Braga climate.
Bragança, Portugal, experiences a diverse climate that beautifully shifts with the seasons. Winters are crisp, with January temperatures dipping as low as -6°C (22°F), while summers can soar to a sweltering 39°C (103°F) in August, providing a perfect backdrop for outdoor adventures. The region witnesses a fair share of rainfall, particularly from November to April, keeping the landscape lush and vibrant. Despite its occasional humidity, especially during the cooler months, Bragança's charm lies in its welcoming climate throughout the year. For a more detailed overview, check out the Bragança climate.
In Castelo Branco, Portugal, the climate offers a delightful mix of seasonal changes, shaping a unique backdrop throughout the year. Winter months can be quite chilly, with January temperatures dipping as low as -4°C (25°F), while July and August peak at a sizzling 43°C (110°F). Rainfall varies, with March and November being the wettest months, receiving up to 115 mm (4.5 in) and 118 mm (4.6 in) of precipitation respectively. Despite the heat in summer, humidity remains relatively comfortable, dropping to around 59% during the hottest months. For a deeper look into the nuances of the local climate, visit Castelo Branco climate.
Coimbra, Portugal, boasts a dynamic climate characterized by mild winters and warm summers. January begins the year with average temperatures around 9°C (48°F), while February and March see a gradual increase, reaching pleasant highs of 27°C (81°F) by the latter month. As summer unfolds, July and August can swelter with maximums soaring up to 40°C (103°F), complemented by relatively low rainfall during these months—only about 10 mm (0.4 in) in July. Notably, autumn brings a resurgence of rain, especially in November, which records 133 mm (5.2 in) of precipitation. For more detailed insights into the weather pattern, check out Coimbra climate.
The District of Setúbal, Portugal boasts a diverse climate, with winter temperatures dipping as low as -2°C (29°F) in January and warming significantly by summer, often peaking at 43°C (110°F) in August. This Mediterranean region experiences varying humidity levels, ranging from a comfortable 63% in June to a muggy 85% in December, creating a rich tapestry of weather throughout the year. Rainfall is most prevalent in the spring and autumn months, with March and November receiving the heaviest precipitation. Interestingly, the summer months are characterized by minimal rainfall, making it a perfect time for beach visits and outdoor activities. For a deeper dive into the intricacies of weather patterns in this charming locale, check out the District of Setúbal climate.
Faro, Portugal boasts a mild Mediterranean climate characterized by warm summers and temperate winters. From January to December, temperatures vary from a brisk -2°C (28°F) in the heart of winter to a sizzling 44°C (111°F) during the peak of summer. While the region enjoys plenty of sunshine, rainfall is more common in the early months, with March seeing up to 70 mm (2.7 in). The humidity remains relatively stable throughout the year, fluctuating between 67% and 81%, creating a comfortable environment. For a detailed overview, check out the Faro climate.
Nestled in the heart of Portugal, Guarda experiences a climate that beautifully transitions throughout the year. Winters are crisp, with January temperatures dipping as low as -5°C (24°F) while bringing humidity levels up to 89%. As spring blooms, March and April offer pleasant warmth, reaching highs of up to 27°C (81°F), though frequent rains, particularly in April, keep the landscape lush. The summer months showcase Guarda's warmth, with temperatures soaring to a sizzling 41°C (106°F) in August, though the lower humidity during this time makes it more bearable. With autumn's return, expect a colorful display of fall foliage interspersed with occasional rain, making it an ideal time for outdoor activities. For more details, check the Guarda climate.
Nestled in Portugal's picturesque region, Leiria showcases a climate that experiences distinct seasons, making it an inviting destination year-round. Winters can be brisk, with temperatures dipping to as low as -4°C (26°F) in January, while summers can sizzle, reaching a scorching 42°C (108°F) in August. Rainfall varies throughout the year, peaking in November with 103 mm (4.1 in) of precipitation, creating lush landscapes that blossom in spring. With moderate humidity levels, particularly in the cooler months, visitors can enjoy a refreshing ambiance, perfect for exploring this charming city. For more details, check out the Leiria climate.
Lisbon enjoys a mild Mediterranean climate, characterized by warm summers and cool winters. January can see temperatures drop to a brisk -3°C (26°F) at night, while daytime highs rest comfortably around 11°C (53°F). As spring approaches in April, temperatures rise dramatically, hitting up to 31°C (88°F). The summer months of July and August boast peak temperatures often exceeding 40°C (104°F), accompanied by low humidity, making it perfect for sun-seekers. Although winters are cooler and wetter, with November and December bringing considerable precipitation, overall, Lisbon's climate remains inviting year-round. For more details on the weather patterns, check out the Lisbon climate.
Madeira boasts a mild and pleasant climate year-round, making it a captivating destination for travelers. With average temperatures ranging from a cool 15°C (60°F) in winter to a warm 22°C (72°F) in summer, the island enjoys a temperate ambiance. Although rainfall is more prominent from January to April, the later months offer a delightful dry spell, especially in July and August with just a mere 7 mm (0.3 in) of precipitation. Humidity levels fluctuate slightly but remain comfortable overall, enhancing the lush landscapes and vibrant flora. For those interested in more detailed insights, visit Madeira climate.
Portalegre, Portugal, boasts a mild Mediterranean climate characterized by warm summers and cooler winters. Temperatures soar in the summer months, with July and August reaching highs around 43-45°C (109-113°F), while winters can dip to -4°C (26°F) in January. Precipitation is prominent in the spring and autumn, peaking in March and November, making for a lush landscape amidst the dramatic temperature fluctuations. Despite the heat, the region experiences relatively low humidity levels in the summer, creating comfortable evenings perfect for outdoor activities. Discover more about this captivating climate in detail at Portalegre climate.
Porto, Portugal, boasts a mild climate characterized by temperatures ranging from -5°C (24°F) in January to a scorching 38°C (101°F) in August. This coastal city experiences the highest rainfall during the winter months, particularly in November and December, with precipitation peaking at 192 mm (7.5 in) in December. Humidity levels are relatively high, especially in the colder months, hovering around 87% in January and December, which can make the cooler months feel brisk. As summer approaches, both temperatures and humidity drop, making for pleasant conditions perfect for exploring. For more detailed insights, check out the full Porto climate.
Nestled in the heart of Portugal, Santarém experiences a diverse climate that captivates throughout the year. Winters are marked by chilly temperatures, dipping as low as -3°C (26°F) in January, while summer months can soar to sweltering highs of 46°C (114°F) in August. Rainfall varies significantly, with the wettest months being April and November, accumulating around 92 mm (3.6 in) and 93 mm (3.6 in) respectively. Humidity hovers notably high in winter, reaching 85% in January and December, while it stabilizes around 60% during the hotter summer months. For more detailed insights on weather patterns, explore Santarém climate.
Viana do Castelo experiences a mild oceanic climate, where temperatures range from chilly winters to warm summers. In January, temperatures can dip as low as -5°C (24°F) but can rise to a balmy 21°C (70°F) by the month's end, while August sees maximums soaring to 37°C (99°F). While winters herald a fair amount of rain, with December averaging 249 mm (9.8 in) of precipitation, the dry and warmer months provide a more pleasant experience. Humidity levels are generally high, especially in the colder months, peaking at 87% in January and December. For a detailed look at seasonal variations, explore the Viana do Castelo climate.
Vila Real, Portugal, experiences a diverse climate characterized by cool winters and warm summers. January, often the coldest month, sees temperatures ranging from a brisk -6°C (22°F) to a milder average of 6°C (42°F), with humidity peaking at 87%. As the seasons progress, temperatures rise significantly, hitting 39°C (103°F) in August while maintaining lower humidity levels of 63%. Rainfall is most abundant in the early months of the year, with 112 mm (4.4 in) in March, but tapers off during the summer, making it a delightful time to explore. For more details about the weather throughout the year, check out Vila Real climate.
Situated in Portugal, Viseu experiences a varied climate throughout the year, with temperatures ranging from -5°C (23°F) in January to a sizzling 39°C (103°F) in August. Winters can be cool and damp, characterized by high humidity levels reaching up to 87%, while summers bring out the sun with minimal rainfall, making it an ideal time for outdoor activities. The blend of mild spring temperatures and vibrant autumn colors adds to Viseu's charm, appealing to visitors year-round. Rainfall is more frequent in the earlier months, particularly in February and November, offering lush landscapes that make the region truly picturesque. For more detailed information, explore the Viseu climate.
Évora, Portugal, boasts a Mediterranean climate characterized by a striking temperature range throughout the year. Winters can be chilly, with January bringing temperatures as low as -3°C (27°F), while summers blaze with highs reaching 46°C (115°F) in August. Rainfall is most prevalent in the spring, particularly in March and April, where up to 82 mm (3.2 in) can fall, creating a lush backdrop before the dry, sun-soaked months take hold. Humidity levels are generally moderate, peaking in the cooler months, making for a comfortable atmosphere for visitors year-round. For more details on the Évora climate, explore the distinct characteristics that define this beautiful region.
The climate of Portugal showcases a captivating range of temperatures and precipitation patterns that reflect its diverse geography. From the bitter cold of January, where temperatures can dip to a chilling -6°C (22°F) in Vila Real, to the sweltering heat of August, reaching a scorching 46°C (115°F) in Évora, the seasons exhibit striking contrasts. Precipitation also tells a tale of extremes, with an astonishing 249 mm (9.8 in) falling in December in Viana do Castelo, while August remains virtually dry, with as little as 1 mm (0.0 in) in Faro. Meanwhile, humidity varies significantly throughout the year; Bragança experiences a high average of 91% in December, while August sees a much lower average of 52%. Overall, Portugal's climate reflects its rich environmental tapestry, marked by notable seasonal shifts and dramatic local variations that make it a unique destination for weather enthusiasts and travelers alike.