Last updated: February 24, 2025
In December, Sesimbra, Portugal experiences a mild coastal climate with maximum temperatures reaching 18°C (66°F), while average temperatures settle around 14°C (57°F). The chill is felt more keenly at night, with minimum temperatures dropping to 6°C (43°F). This month sees 54 mm (2.1 in) of rainfall spread across seven days, contributing to a humid atmosphere with levels reaching 85%. Visitors will find this time of year ideal for exploring the scenic beauty of Sesimbra, albeit with occasional showers.
In December, Sesimbra, Portugal begins to embrace the chill of winter, with temperatures dipping to a minimum of 6°C (43°F) and reaching a maximum of 18°C (66°F). The average temperature hovers around 14°C (57°F), providing a refreshing escape from the mild autumn months. This transition marks a notable shift from the soaring highs of summer, with temperatures generally descending from the max of 34°C (94°F) experienced in August. December's cooler climate invites visitors to enjoy the stunning coastal scenery while wrapped in cozy layers. The gradual drop in temperature sets the stage for a serene winter atmosphere, making it an ideal time to explore this charming seaside town.
December in Sesimbra, Portugal, typically experiences a moderate amount of rainfall, averaging 54 mm (2.1 in) over about 7 days. This marks a notable decrease from the precipitation peak often seen in November, which can reach up to 69 mm (2.7 in), suggesting that while December remains wet, it signals the tail end of the more intense rainy season. As the year closes, the drop in both precipitation amounts and frequency of rainy days creates a transition towards the drier months ahead. This seasonal shift makes December an intriguing blend of lingering moisture and the promise of sunnier skies, appealing to those who appreciate the serene landscape painted by winter rain.
In Sesimbra, Portugal, December marks the return of higher humidity levels, mirroring January’s 85%. As the year progresses, humidity experiences a noteworthy decline from a high of 85% in January to its lowest point of 60% in both July and August. However, as autumn transitions into winter, humidity begins to climb again, peaking at 83% in November before stabilizing at December's 85%. This cyclical trend reflects the region's seasonal shifts, where cooler months bring higher moisture content in the air, creating a refreshing contrast to the summer's drier conditions. Overall, while Sesimbra enjoys relatively mild summers, the winter months are characterized by a notable increase in humidity, setting the stage for the lush landscapes that define this picturesque coastal town.
In December, Sesimbra experiences a moderate UV Index of 3, similar to the level observed in the earlier winter months of January and November. This trend indicates that while sun exposure is less of a concern compared to the summer peak, it is still essential to be mindful of the sun during outdoor activities. With a burn time of 30 minutes, it's advisable to protect your skin, particularly during midday. The UV Index generally rises from January's moderate levels, peaking at 11 in June, before gradually declining towards the end of the year. For those planning to enjoy Sesimbra's winter sunsets, this means a balanced approach to sun safety is key. For more detailed information, visit Sesimbra UV Index.
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December in Sesimbra, Portugal, offers a gentle transition into winter, with around 227 hours of sunshine making it a charming time to visit. While this month sees the least sun compared to the summer peak of 422 hours in July, it still retains a warmth that invites travelers to explore its picturesque coastline and vibrant local culture. As autumn fades, December's sunlight hints at the promising arrival of winter's own cozy beauty, all while showing a slight decline from the brighter months of May and June, which bathe the region in over 400 hours of golden glow. This month captures the essence of Sesimbra’s mild climate, making it a delightful escape for those seeking both sun and serenity.
In December, Sesimbra, Portugal, experiences a 42% chance of sunny weather, marking one of the lower probabilities for sunshine as the year draws to a close. This trend aligns with the transition from autumn to winter, where the higher probabilities seen in the summer months—peaking at 78% in July and August—give way to more variable conditions. While November offers a more promising 69% chance, December brings a noticeable dip, suggesting that visitors might encounter more overcast days. Despite this, Sesimbra's coastal charm and milder temperatures still make it an appealing destination, even if the sun may not shine as frequently.
In December, daylight in Sesimbra, Portugal, dwindles to approximately 9 hours, marking a significant transition as the year reaches its end. This month experiences the shortest days, following a gradual decrease in daylight that began with November’s 10 hours. The trend is clear: as the seasons shift from the vibrant brightness of summer—boasting up to 14 hours in June, July, and August—the daylight hours contract progressively throughout the autumn and into winter. This rhythm of daylight not only shapes the landscape but also influences the local culture and activities, inviting a cozy atmosphere as the evenings grow darker and the natural world settles into a peaceful slumber.
In December, Sesimbra experiences a gentle breeze with an average wind speed of 4.8 m/s (11 mph), marking a slight uptick from the calmer autumn months. This trend highlights a gradual transition from the milder wind patterns of November, where speeds were at 4.4 m/s (10 mph), and it remains consistent with the prevailing wind conditions seen earlier in the year. While summer months boast marginally higher gusts, December's chillier winds perfectly complement the cozy atmosphere of this picturesque Portuguese town. As the year winds down, the steady breezes of December offer a refreshing reminder of the coastal beauty that defines Sesimbra.
The weather in Sesimbra changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Sesimbra and find detailed weather information for every month.
December and January showcase a subtle shift in weather patterns. While December averages a slightly milder temperature with a minimum of 6°C (43°F) and a maximum of 18°C (66°F), January dips a bit cooler with a minimum of 4°C (40°F) and an average of 12°C (54°F), though it can reach up to 20°C (68°F). Notably, January enjoys less precipitation, with only 34 mm (1.3 in) spread over just 4 days compared to December's 54 mm (2.1 in) over 7 days. Both months share a constant humidity level of 85%, creating a consistently damp atmosphere. For a detailed look at January's weather, you can visit Sesimbra weather in January.
December weather tends to be slightly warmer on average compared to February, with temperatures ranging from a low of 6°C (43°F) to a high of 18°C (66°F), while February sees a similar minimum of 5°C (42°F) but can reach up to 21°C (71°F). Both months have comparable precipitation levels, with December receiving 54 mm (2.1 in) over 7 days and February slightly less at 53 mm (2.1 in) over 6 days. However, December's humidity stands at a higher 85%, making it feel more damp, while February is less humid at 75%. For a detailed look at weather conditions in February, you can visit Sesimbra weather in February.
In December, the weather typically features milder temperatures with a minimum of 6°C (43°F) and a maximum of 18°C (66°F), resulting in an average of 14°C (57°F). The month experiences around 54 mm (2.1 in) of precipitation over about 7 days, accompanied by high humidity at 85%. In contrast, March brings slightly warmer conditions with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 24°C (75°F), while still maintaining an average of 14°C (58°F). The precipitation increases to 66 mm (2.6 in) spread over about 8 days, and the humidity drops to a more comfortable 72%. For more detailed information, you can check Sesimbra weather in March.
In December, the weather tends to be cooler with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 18°C (66°F), averaging around 14°C (57°F). The month experiences about 54 mm (2.1 inches) of precipitation over approximately 7 days, coupled with high humidity levels of 85%.
In contrast, April brings a noticeable warming trend, with minimum temperatures starting at 9°C (48°F) and soaring up to 24°C (76°F), averaging 15°C (60°F). Although April is slightly wetter with 63 mm (2.5 inches) of precipitation over about 11 days, the humidity is more comfortable at 70%. For a detailed look at what to expect weather-wise, you can check out Sesimbra weather in April.
In December, the weather is generally mild with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 18°C (66°F), averaging around 14°C (57°F). It tends to be quite humid at 85%, accompanied by moderate precipitation of 54 mm (2.1 in) over about 7 days. In contrast, May brings warmer temperatures, with a minimum of 10°C (50°F) and a maximum reaching 31°C (87°F), resulting in an average of 18°C (64°F). This month enjoys less humidity at 70% and lower precipitation of 31 mm (1.2 in) over just 4 days. For more details, check out Sesimbra weather in May.
December and June exhibit contrasting weather patterns, reflecting the seasonal shift. In December, temperatures range from a minimum of 6°C (43°F) to a maximum of 18°C (66°F), with an average of 14°C (57°F). The month sees substantial precipitation, totaling 54 mm (2.1 in) over approximately 7 days, coupled with high humidity at 85%. In stark contrast, June boasts warmer temperatures, with a minimum of 13°C (55°F) and a maximum reaching 31°C (89°F), averaging 19°C (67°F). Rainfall is minimal in June, at just 8 mm (0.3 in) over 2 days, and humidity drops to a more comfortable 63%. For a closer look at June's weather, you can check Sesimbra weather in June.
The weather in December and July presents a stark contrast in terms of temperature and precipitation. December experiences milder temperatures, with an average of 14°C (57°F), and occasional rainfall totaling 54 mm (2.1 in) over about 7 days, along with high humidity at 85%. In comparison, July boasts warmer temperatures, averaging 21°C (70°F), and can peak at 31°C (88°F), while rainfall is minimal at just 4 mm (0.2 in) over a single day, accompanied by lower humidity at 60%. This variation highlights how December's cooler, damp conditions sharply differ from July's warm, dry weather. For more details, check out Sesimbra weather in July.
In December, the weather features a cooler range of temperatures, with a minimum of 6°C (43°F) and an average of 14°C (57°F), while maximum temperatures can reach up to 18°C (66°F). This month also sees a significant amount of precipitation, averaging 54 mm (2.1 in) over about 7 days, coupled with a high humidity level of 85%. In contrast, August boasts much warmer conditions, with minimum temperatures starting at 16°C (61°F) and averaging around 21°C (71°F), peaking at a hot 34°C (94°F). This summer month experiences minimal rainfall, with only 3 mm (0.1 in) and no rainy days, along with a lower humidity of 60%. For more information on the specific weather details for August, you can visit Sesimbra weather in August.
The weather in December is relatively cooler and more humid compared to September. In December, temperatures range from a minimum of 6°C (43°F) to a maximum of 18°C (66°F), with an average of 14°C (57°F). The month also sees about 54 mm (2.1 in) of precipitation over seven days, contributing to a high humidity level of 85%. In contrast, September boasts warmer weather, with temperatures ranging from 14°C (57°F) to a peak of 30°C (86°F) and an average of 21°C (69°F). This month experiences significantly less rainfall, totaling just 18 mm (0.7 in) over two days, and a more comfortable humidity level of 67%. For further details, check out Sesimbra weather in September.
When comparing December and October weather, December tends to be cooler, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 18°C (66°F), and an average of 14°C (57°F). In contrast, October enjoys milder temperatures, with a minimum of 10°C (50°F) and reaching as high as 28°C (83°F), averaging at 19°C (66°F). Additionally, December experiences more precipitation, with 54 mm (2.1 in) over about 7 days, while October sees less rain, totaling 39 mm (1.5 in) over just 4 days. The humidity levels are also higher in December at 85%, compared to October's 74%. For a more detailed look at the weather, check out Sesimbra weather in October.
In comparing the weather of December and November, December tends to be slightly cooler with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 18°C (66°F), while November features a milder range, with minimums of 8°C (47°F) and maximums reaching up to 23°C (73°F). Precipitation is also notable in both months, with December receiving 54 mm (2.1 in) over about 7 days, compared to November's 69 mm (2.7 in) across 9 days. Humidity levels remain relatively high during both months, with December at 85% and November at 83%. For those interested in the specifics of November weather, further details can be found here: Sesimbra weather in November.
As December settles over Sesimbra, the weather takes on a distinct character, marked by cooler temperatures and an increase in humidity. While the average temperature hovers around 14°C, daily highs can reach up to 18°C, offering a mild respite from the chill of winter. Precipitation becomes more frequent, with about seven rainy days throughout the month, resulting in a total accumulation of 54 mm. This contrasts sharply with the drier months preceding it, making December a time when Sesimbra exhibits an enchanting blend of cozy coastal charm and refreshing sea breezes. To explore more about Sesimbra's unique climate, visit Sesimbra Climate.