Last updated: February 24, 2025
Experience the charming winter atmosphere of Sintra, Portugal, where January temperatures vary from a comfortable maximum of 18°C (64°F) to a cooler minimum of 7°C (45°F), rendering an average of 13°C (56°F). This month, visitors can expect about 42 mm (1.7 in) of rainfall over 7 days, contributing to the lush greenery that Sintra is renowned for. With humidity levels averaging 85%, the air feels fresh and invigorating, making it an ideal time for exploring the region's stunning landscapes and historic sites.
In January, Sintra, Portugal, experiences mild temperatures that set the tone for winter in this enchanting region. With a minimum of 7°C (45°F) and a pleasant average of 13°C (56°F), the month features a maximum of 18°C (64°F), offering a comfortable climate for exploration. As winter transitions into spring, February sees a slight rise in nighttime temperatures, reaching 9°C (48°F), while the average remains stable. By March, the thermometer nudges higher with warmer days, bringing an average of 14°C (57°F) and daytime highs nearing 19°C (66°F), hinting at the rapid seasonal change ahead. This upward trend continues into April and May, where temperatures peak, revealing the region's charm as it embraces spring's lush beauty. Winter's chill gradually gives way to a delightful warmth, making Sintra a picturesque destination for visitors seeking both respite and adventure.
In January, Sintra experiences a moderate precipitation level of 42 mm (1.7 in), typically spread over approximately 7 days. This sets the tone for the wetter months ahead, as rainfall gradually increases in February and peaks in November with a significant 89 mm (3.5 in). Notably, January's rainy days are relatively few compared to later months, suggesting a cozy chill in the air without the persistent downpours that characterize late autumn. As winter transitions into spring, the precipitation levels show a gradual rise, indicating a shift in weather patterns and preparing the lush landscape for the vibrant blooms of spring. Overall, January serves as a gentle precursor to the wetter, more dynamic weather following it.
In January, Sintra, Portugal experiences a notably high humidity level of 85%, setting the tone for the month as one of the dampest of the year. This substantial moisture in the air often lingers in the surrounding lush landscapes, creating a humid but vibrant atmosphere. As winter progresses into February and March, humidity gradually decreases to 75% and 72%, respectively, signaling a transition toward drier conditions. By the time spring arrives in April and May, humidity stabilizes around 70%, marking a period of mild and comfortable weather. The summer months introduce a further decline, with June and July seeing humidity drop to 63% and 60%, allowing for more refreshing breezes. However, as autumn approaches, the trend shifts again, with humidity rising to 67% in September and peaking at 85% once more by December, reminiscent of January. This cyclical pattern highlights Sintra's unique climatic rhythm, where the lush greenery thrives best amidst the winter dampness and spring's mild embrace.
In January, Sintra, Portugal experiences a moderate UV Index of 3, allowing for about 30 minutes of safe sun exposure. As the months progress, there's a noticeable trend of increasing UV intensity, peaking in June at an extreme UV Index of 11, where just 10 minutes can lead to skin damage. This upward trajectory continues through July and August, with very high levels persisting into the fall. By October, the UV Index drops back to 6, showing a gentle decline toward the year's end. The overall pattern underscores the importance of sun safety as Sintra transitions from mild to high UV levels. For more details, visit Sintra UV Index.
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January in Sintra, Portugal greets visitors with approximately 183 hours of sunshine, setting the stage for a year that gradually blossoms into brightness. As winter recedes, February sees an increase to 231 hours, hinting at the promise of spring. This trend continues through the months, with March and April ushering in 307 hours and 351 hours of sunlight, respectively. The sunshine peaks in the summer months, with July basking in the glow of 420 hours, before the days gradually shorten as autumn approaches. By the end of the year, December's 224 hours remind us of sunny memories, affirming that even the colder months in Sintra are graced with a rich tapestry of light.
In Sintra, Portugal, January offers a 45% chance of sunny weather, making it one of the more unpredictable months for sunshine. As the year progresses, the likelihood of sun significantly increases, peaking in the summer months of July (69%) and August (66%). Interestingly, early spring sees a notable rise as well, with March boasting a 60% chance of clear skies. In contrast, February presents a notable dip at 24%, suggesting that those seeking sun might want to bypass this month. Overall, while January may not promise abundant sunshine, the transition to spring brings more favorable weather, paving the way for sunnier days ahead.
In January, Sintra, Portugal basks in approximately 9 hours of daylight, marking the year's darkest month. As the calendar turns to February, daylight gradually increases to 10 hours, signaling the slow shift toward longer days. This upward trend continues in March with 11 hours, and by April, sunlight spills over for an impressive 13 hours. As spring unfolds into summer, daylight peaks in May and June at 14 hours, offering ample time for exploration of Sintra’s stunning landscapes. The decline begins in August, with daylight dropping to 13 hours, then gently tapering to 12 hours in September. By the time October arrives, daylight shrinks further to 11 hours, and the cycle begins anew, closing out the year back at 9 hours in December. Thus, Sintra's daylight duration showcases a rhythmic ebb and flow, inviting both reflection and adventure throughout the seasons.
January in Sintra, Portugal, greets visitors with a consistent average wind speed of 6.9 m/s (15 mph), a rhythm that holds steady into February. This briskness gives way to a gradual decline in March, where the winds soften to 6.0 m/s (13 mph). As spring approaches, the air calms down notably by April, reaching a gentle 4.9 m/s (11 mph)—the mildest of the year. However, the wind picks up again as summer rolls in, peaking in May and June at 7.3 m/s (16 mph), offering invigorating breezes perfect for outdoor activities. Throughout the latter part of the year, wind speeds experience a winding down, fluctuating between 5.1 and 6.7 m/s. This seasonal dance highlights Sintra's unique climate, where the winds play a dynamic role in shaping both the landscape and the visitor experience.
The weather in Sintra 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 Sintra and find detailed weather information for every month.
January and February exhibit a mild climate, but there are some notable differences. January experiences slightly cooler temperatures, with a minimum of 7°C (45°F) compared to February's minimum of 9°C (48°F). Both months share an average temperature of 13°C (56°F), and February's maximum temperature is just a degree lower at 17°C (63°F). Precipitation is more significant in February, with 59 mm (2.3 in) over 8 days, compared to January's 42 mm (1.7 in) over 7 days. Additionally, humidity is higher in January at 85%, whereas February enjoys a slightly drier atmosphere at 75%. For more details on February weather in Sintra, you can check Sintra weather in February.
In January, the weather 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). The month experiences about 42 mm (1.7 in) of precipitation over approximately 7 days, contributing to a higher humidity level of 85%. In contrast, March sees a rise in temperatures, starting at a minimum of 9°C (49°F) and peaking at 19°C (66°F), with an average of 14°C (57°F). The precipitation also increases to 64 mm (2.5 in) spread over 8 days, but humidity drops to a more comfortable 72%. For more detailed information, you can check Sintra weather in March.
In January, the weather is generally cooler, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F). The month features about 42 mm (1.7 in) of precipitation spread over 7 days, accompanied by relatively high humidity at 85%. In contrast, April brings slightly warmer temperatures, with a minimum of 10°C (50°F) and a maximum of 21°C (71°F), while the average temperature hovers around 14°C (58°F). However, April also sees increased rainfall, with about 71 mm (2.8 in) of precipitation over 11 days, but the humidity is lower at 70%. For more insights on the weather during this month, visit Sintra weather in April.
In January, the weather tends to be cooler and more humid, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F). The month typically sees about 42 mm (1.7 in) of precipitation over 7 days, contributing to a humidity level of 85%. In contrast, May experiences warmer temperatures, averaging between 11°C (53°F) and 24°C (76°F). With significantly less rainfall at 33 mm (1.3 in) over just 3 days and a decrease in humidity to 70%, May offers a much drier and more pleasant climate. For more details, you can check out Sintra weather in May.
In January, the weather is cooler and more humid, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F), and an average of 13°C (56°F). The month sees considerable rainfall, with 42 mm (1.7 in) falling over approximately 7 days, accompanied by high humidity levels of around 85%. In contrast, June presents a much warmer and drier climate; temperatures range from a minimum of 14°C (58°F) to a maximum of 22°C (72°F), averaging at 17°C (63°F). Rainfall significantly decreases to just 12 mm (0.5 in) over 2 days, and humidity drops to a more comfortable 63%. For more details on what to expect during this summer month, check out Sintra weather in June.
In January, the weather is cooler, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F) and an average of 13°C (56°F). This month sees a fair amount of precipitation, totaling 42 mm (1.7 in) over about 7 days, accompanied by high humidity at 85%. In contrast, July offers much warmer conditions, with minimum temperatures of 16°C (60°F) and maximums reaching 21°C (70°F), averaging 18°C (64°F). This summer month is quite dry, experiencing only 3 mm (0.1 in) of precipitation and boasting zero rainy days, along with a lower humidity level of 60%. For more details on July weather, you can visit Sintra weather in July.
The weather in January and August presents a striking contrast. In January, temperatures range from a cool minimum of 7°C (45°F) to a mild maximum of 18°C (64°F), with an average temperature of 13°C (56°F). This month typically experiences 42 mm (1.7 in) of precipitation over about 7 days, accompanied by high humidity at 85%. In contrast, August boasts warmer temperatures, with a minimum of 16°C (61°F), an average of 18°C (65°F), and a maximum of 23°C (74°F). This summer month sees significantly less rainfall, with only 4 mm (0.1 in) falling over just 1 day, and humidity drops to a more comfortable 60%. For more detailed information about August weather, visit Sintra weather in August.
In January, temperatures typically range from a minimum of 7°C (45°F) to a maximum of 18°C (64°F), with an average of about 13°C (56°F). The month is quite humid, with average humidity levels around 85% and precipitation occurring on about 7 days, totaling 42 mm (1.7 in). In contrast, September offers a noticeably warmer climate, with temperatures starting from a minimum of 15°C (60°F) and peaking at 23°C (74°F), resulting in an average of 18°C (65°F). The humidity drops to 67%, and rainfall is less frequent, averaging just 32 mm (1.2 in) over only 2 days. This makes September a much drier and more pleasant time to enjoy the outdoors. For more details on the weather during this month, see Sintra weather in September.
In January, the weather is cooler, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F) and an average of 13°C (56°F). The month experiences approximately 42 mm (1.7 in) of precipitation over about 7 days, accompanied by high humidity at 85%. In contrast, October sees milder temperatures, featuring a minimum of 11°C (52°F) and a comfortable maximum of 23°C (74°F), with an average temperature of 18°C (64°F). Although October has slightly higher precipitation at 53 mm (2.1 in) over just 6 days, the humidity drops to a more manageable 74%. For further details on the weather in this month, check Sintra weather in October.
When comparing the weather in January and November, there are notable differences in temperature and precipitation. January tends to be cooler, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F), and an average of 13°C (56°F). In contrast, November is milder, with temperatures varying from a minimum of 11°C (53°F) to a maximum of 20°C (68°F) and an average of 16°C (60°F). Additionally, November experiences higher precipitation, with 89 mm (3.5 in) over 11 days, compared to January's 42 mm (1.7 in) over 7 days. Both months have similar humidity levels, with January at 85% and November slightly lower at 83%. For more detailed information, check out Sintra weather in November.
January weather is slightly milder than December, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 18°C (64°F), compared to December's range of 9°C (49°F) to 17°C (63°F). However, January experiences less precipitation, totaling 42 mm (1.7 in) over 7 days, while December sees a greater amount of rain at 73 mm (2.9 in) over 10 days. Both months share a high humidity level of 85%, creating a consistently damp atmosphere. For more detailed information about the weather specifics in December, you can check Sintra weather in December.
January in Sintra offers a distinctive weather experience, with cooler temperatures and increased precipitation compared to the more temperate months of spring and summer. While daytime highs reach a comfortable 18°C, the average dips to 13°C, creating a refreshing atmosphere that is perfect for exploring the region's lush landscapes. The month sees a bit more rain, with approximately 42 mm falling across seven days, leading to a heightened sense of greenery and vibrant scenery. Coupled with 85% humidity, January sets itself apart from the drier, sunnier months ahead. For a deeper dive into what Sintra has to offer throughout the year, check out Sintra Climate.