Last updated: February 24, 2025
In Cascais, Portugal, January brings a refreshing coastal climate, where maximum temperatures reach a pleasant 18°C (64°F) and average temperatures hover around 13°C (56°F). While the month is characterized by cool weather, the minimum temperature can drop to a brisk 7°C (45°F). January typically witnesses 42 mm (1.7 in) of precipitation spread over approximately 7 days, contributing to high humidity levels at about 85%. This mix of mild temperatures and occasional rain makes it an ideal time for experiencing the lush scenery and vibrant atmosphere of Cascais.
In Cascais, Portugal, January marks the start of the year with brisk temperatures, featuring a minimum of 7°C (45°F) and a comfortable average of 13°C (56°F). As the month progresses, visitors can enjoy daytime highs reaching up to 18°C (64°F), offering a pleasant escape from colder climates. This month sets the tone for the gradual warming trend that unfolds through the winter into spring. Following January, February sees slightly warmer nights and steady daytime averages, while March introduces even milder temperatures. As the region transitions into the spring months of April and May, temperatures climb, showcasing a delightful progression from the cooler winter days to the pleasantly warm weather that characterizes late spring, making Cascais an inviting destination year-round.
January in Cascais, Portugal, ushers in a moderate start to the year with 42 mm (1.7 in) of precipitation over seven days. This marks a gentle transition from the drier months of late autumn, as rainfall begins to steadily increase heading into February and March, where averages rise to 59 mm (2.3 in) and 64 mm (2.5 in) respectively. Notably, the number of rainy days also ticks up, peaking in April with 11 days of moisture. As spring approaches, the wet conditions gradually give way to the much drier summer months, with July and August registering minimal precipitation. The overall trend reflects Cascais' distinct seasonal shifts, offering a refreshing blend of rain during winter months that is essential for the region's lush landscape, followed by the reliable sunshine that characterizes its summer allure.
January in Cascais, Portugal experiences a relatively high humidity level of 85%, setting the tone for the winter months. As the seasons transition, a noticeable decline occurs, with February dropping to 75% and March further decreasing to 72%. This trend continues, reaching its lowest in mid-summer, with July and August maintaining a comfortable 60% humidity. However, as autumn approaches, humidity begins to rise again, peaking back at 85% by December, mirroring January's initial levels. Overall, the data illustrates a clear seasonal pattern: a blend of high humidity in winter, a moderate decrease in spring and summer, and a return to dampness as the year closes out.
In January, Cascais experiences a moderate UV Index of 3, requiring about 30 minutes of sun exposure before a burn occurs. As the months progress, UV levels rise sharply; by February, it reaches 5, and then escalates to a high of 6 in March. The trend continues into April and May, where the UV Index peaks at 9 and 10 respectively, indicating very high exposure levels and a much shorter burn time of just 15 minutes. The extreme UV conditions in June at an Index of 11 call for extra caution, as burn time drops to a mere 10 minutes. While the summer months showcase consistently high levels, September and October maintain elevated UV readings before tapering off in late autumn, where November and December revert back to a moderate Index of 4 and 3 respectively. This seasonal shift highlights the importance of sun safety throughout the year in Cascais. For more detailed insights, check out the Cascais UV Index.
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January in Cascais, Portugal, sees about 183 hours of sunshine, setting the stage for a gradual increase in brightness as the year unfolds. As winter transitions into spring, February welcomes 231 hours of golden rays, hinting at the promise of warmer days ahead. By March, sunshine soars to 307 hours, and in April, visitors can bask in 351 hours, as the vibrant coastal landscape begins to thrive. The sunniest months come in the summer, peaking at 420 hours in July, creating an idyllic backdrop for outdoor adventures. Though August brings a slight dip to 395 hours, the overall trend remains optimistic, with September still offering a generous 348 hours. As autumn takes its turn, the hours gradually recede through the end of the year, but even in November and December, Cascais remains bright with 236 and 224 hours, reflecting the area's charm throughout all seasons.
Cascais, Portugal, offers a moderate chance of sunshine in January, with a 45% likelihood of clear skies. While this is notably higher than February's 24%, it's still less favorable compared to the sunnier months that follow, such as March, which boasts a 60% chance of sun. As the year progresses into the spring and summer, the likelihood of sunny days increases significantly, reaching a peak in July and August with around 69% and 66% respectively. Thus, if you're planning a visit in January, prepare for a mix of sun and clouds, while keeping in mind that brighter days are just around the corner!
In Cascais, Portugal, January greets visitors with 9 hours of daylight, marking the start of a gradual increase as winter gives way to spring. As February unfolds, daylight extends to 10 hours, hinting at the longer days to come. The trend continues into March, with 11 hours, and by April, daylight blossoms further to 13 hours, creating a vibrant atmosphere in the region. May and June showcase the peak of summer with 14 hours of sunlight, a golden opportunity for outdoor activities and exploration. The daylight begins to wane in August, dropping slightly to 13 hours, as September and October offer 12 and 11 hours, respectively. By November and December, the cycle returns to 10 and 9 hours, reminding us of the season's embrace. This rhythmic dance of daylight beautifully captures the essence of Cascais throughout the year, making it a perennial favorite for sun-seekers and adventurers alike.
In Cascais, Portugal, January greets visitors with an average wind speed of 6.9 m/s (15 mph), setting a brisk tone for the month. This steady wind continues into February, maintaining the same pace, before tapering off slightly in March to 6.0 m/s (13 mph). As spring approaches, the winds mellow further, reaching a low of 4.9 m/s (11 mph) in April. However, by May, a noticeable increase brings the average back up to 7.3 m/s (16 mph), showing a resurgence of brisk breezes that continue into the summer months. Throughout July and August, the winds remain consistent, hovering around 7.2 m/s (16 mph) and 6.4 m/s (14 mph) respectively. As autumn arrives, the wind speed gradually decreases, with the year closing out at a slightly lower 6.7 m/s (15 mph) in December. This pattern illustrates a vibrant transition from the invigorating winds of winter to the temperate breezes of spring and summer, before fading into the calmer air of the fall season.
The weather in Cascais changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Cascais and find detailed weather information for every month.
In January, the weather in Cascais is characterized by a mild temperature range, with minimums around 7°C (45°F) and maximums reaching up to 18°C (64°F). The month experiences approximately 42 mm (1.7 in) of precipitation, falling over 7 days, and maintaining a high humidity level of 85%. In contrast, February sees slightly warmer temperatures with minimums around 9°C (48°F) and maximums at 17°C (63°F). The precipitation increases to 59 mm (2.3 in), spread over 8 days, but the humidity drops to a more comfortable 75%. For more detailed information, check out Cascais weather in February.
In comparing the weather between January and March, we see that March typically offers slightly warmer temperatures, with a minimum of 9°C (49°F) compared to January’s 7°C (45°F). The average temperatures in March rise to around 14°C (57°F), maintaining a maximum of 19°C (66°F), while January averages 13°C (56°F) with a peak of 18°C (64°F). Additionally, March experiences a higher precipitation level at 64 mm (2.5 in) over 8 days, compared to January’s 42 mm (1.7 in) over 7 days. The humidity also decreases from January's 85% to 72% in March, making the latter month feel a bit more comfortable. For a detailed look at what to expect, check out Cascais weather in March.
In January, the weather in Cascais is generally mild, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F). The month sees about 42 mm (1.7 in) of precipitation over approximately 7 days and maintains a high humidity level of 85%. In contrast, April brings slightly warmer conditions, with temperatures starting at 10°C (50°F) and peaking at 21°C (71°F). However, April experiences more rainfall, totaling 71 mm (2.8 in) over 11 days, and the humidity decreases to 70%. For more detailed information about weather conditions in April, check Cascais weather in April.
In January, the weather is notably cooler, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F) and a relatively high humidity of 85%. This month also experiences more frequent rainfall, with precipitation occurring on about 7 days and totaling 42 mm (1.7 in). In contrast, May brings warmer temperatures, with a minimum of 11°C (53°F) and a maximum reaching 24°C (76°F), alongside a decrease in humidity to 70%. Precipitation is less frequent in May, falling on just 3 days and accumulating 33 mm (1.3 in). For more detailed information, you can visit Cascais weather in May.
January and June present a stark contrast in weather. In January, temperatures range from a minimum of 7°C (45°F) to a maximum of 18°C (64°F), with an average temperature of 13°C (56°F). The month is characterized by higher humidity at 85% and more frequent rainfall, with about 42 mm (1.7 in) of precipitation over 7 days. In contrast, June enjoys milder temperatures, starting at 14°C (58°F) and peaking at 22°C (72°F), averaging 17°C (63°F). It experiences significantly less rainfall, with only 12 mm (0.5 in) over just 2 days, and a much lower humidity level of 63%. For more details on the weather in June, visit Cascais weather in June.
In January, temperatures in Cascais range from a minimum of 7°C (45°F) to a maximum of 18°C (64°F), with an average of 13°C (56°F). This month experiences about 42 mm (1.7 in) of precipitation over 7 days, contributing to a high humidity level of 85%. In contrast, July offers a much warmer climate, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 21°C (70°F) and an average temperature of 18°C (64°F). Rainfall is minimal during this month, with only 3 mm (0.1 in) recorded and no days of precipitation, resulting in a significantly lower humidity of 60%. For more details, check the Cascais weather in July.
In January, the weather is relatively cool, with minimum temperatures dipping to 7°C (45°F) and average temperatures around 13°C (56°F). The month sees a higher amount of precipitation, with about 42 mm (1.7 in) spread over 7 days, coupled with high humidity at 85%. In contrast, August offers a much warmer climate, featuring minimum temperatures of 16°C (61°F) and average temperatures reaching 18°C (65°F), with maximums peaking at 23°C (74°F). August experiences significantly less rainfall, only about 4 mm (0.1 in) over just 1 day, and the humidity is noticeably lower at 60%. For more details on August weather, check out Cascais weather in August.
January and September showcase contrasting weather patterns. In January, temperatures range from a chilly 7°C (45°F) at night to a mild 18°C (64°F) during the day, with an average of 13°C (56°F). The month is characterized by significant humidity at 85%, and precipitation occurs over about 7 days, totaling 42 mm (1.7 in). In contrast, September offers a warmer climate, with minimum temperatures of 15°C (60°F) and maximums reaching 23°C (74°F), averaging around 18°C (65°F). The humidity drops to a more comfortable 67%, and rain is less frequent, with only 32 mm (1.2 in) falling over just 2 days. This shift from January to September indicates a transition from a wet and cooler atmosphere to a drier and warmer one. For more insights into September weather, you can visit Cascais weather in September.
In January, the weather tends to be cooler, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F), averaging at 13°C (56°F). The month experiences about 42 mm (1.7 in) of precipitation over approximately seven days, coupled with high humidity levels of 85%. In contrast, October brings milder conditions, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 23°C (74°F), averaging 18°C (64°F). Rainfall increases slightly to 53 mm (2.1 in) but occurs over just six days, and humidity drops to a more comfortable 74%. For those interested in detailed weather patterns, you can check out Cascais weather in October.
In comparing the weather of January and November, January tends to be slightly cooler, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F), while November offers milder conditions with temperatures between 11°C (53°F) and 20°C (68°F). November also experiences higher precipitation, with 89 mm (3.5 in) falling over 11 days, compared to January's 42 mm (1.7 in) over 7 days. The humidity remains relatively constant, at 85% in January and 83% in November, making both months feel quite humid and cozy. For more detailed insights into the weather conditions in this area, you can check out Cascais weather in November.
In comparing the weather between January and December, January tends to be slightly cooler, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F), while December features a milder range of temperatures from a minimum of 9°C (49°F) to a maximum of 17°C (63°F). January experiences less precipitation, totaling 42 mm (1.7 in) over about 7 days, compared to December's 73 mm (2.9 in) spread across 10 days. Interestingly, both months share the same high humidity level of 85%, adding a consistent dampness to the air. For more detailed information, check out Cascais weather in December.
January in Cascais brings a refreshing change from the milder months, showcasing cooler temperatures and increased humidity. With the sea retaining its warmth, daytime highs can reach a pleasant 18°C, but crisp evenings dip down to a brisk 7°C, encouraging cozy indoor activities. This month also sees a bit more rain, with a splash of 42 mm over roughly a week, making it one of the wetter times of the year. While January may lack the sunshine of summer, its unique atmosphere offers a serene charm perfect for those seeking a tranquil escape. For a deeper dive into what to expect throughout the year, check out Cascais Climate.