December Weather in Setubal, Portugal

Last updated: February 24, 2025

December in Setúbal, Portugal, showcases a mild maritime climate characterized by a maximum temperature of 18°C (66°F) and an average temperature of 14°C (57°F). The weather transitions to cooler nights, dipping to a minimum of 6°C (43°F), making it a cozy time to explore the region. Visitors can expect about 54 mm (2.1 in) of precipitation over seven days, contributing to the lush scenery. With humidity levels averaging 85%, the air carries a refreshing chill, embracing the essence of winter by the coast. Setúbal's December weather offers a unique blend of pleasant temperatures and occasional rain, perfect for a winter getaway.

December Temperature in Setubal

In December, Setúbal, Portugal experiences a gentle transition into winter, with temperatures ranging from a minimum of 6°C (43°F) to a comfortable average of 14°C (57°F). The month sees highs around 18°C (66°F), providing a pleasant backdrop for those looking to escape the harsh winters elsewhere. Compared to the milder months preceding it, December's temperatures reflect a subtle drop, but remain relatively mild and inviting. As the year draws to a close, visitors can enjoy the cooler weather while still benefiting from Setúbal's stunning coastal charm and rich cultural offerings.

December Weather in Setubal: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Setubal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec545657596466697069655956
Data source: Temperature data for Setubal generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Setubal

In Setúbal, Portugal, December typically witnesses a notable shift in precipitation patterns as the region prepares for winter. With an average of 54 mm (2.1 in) of rainfall over 7 days, this month stands out with a significant increase compared to the drier summer months of June and July, which receive as little as 4 mm (0.2 in) and 3 mm (0.1 in), respectively. December's precipitation levels are consistent with November's 69 mm (2.7 in), highlighting a trend of increased rainfall as the seasons transition. This consistent moisture not only supports the lush greenery of the surrounding landscapes but also sets the stage for a vibrant, albeit wet, end to the year in Setúbal.

December Precipitation Trends in Setubal

The chart displays monthly precipitation patterns in Setubal, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec345366633184318397054
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Setubal

In Setúbal, Portugal, December marks a return to elevated humidity levels, with a notable 85% humidity, similar to the peak experienced in January. This trend underscores a seasonal pattern where the year's end and beginning are characterized by moisture-laden air, contrasting sharply with the drier months of July and August, which see humidity drop to around 60%. As the year unfolds, humidity gradually declines until it reaches its annual low in late summer, before rising again in late autumn and winter. This cyclical variation in humidity not only shapes Setúbal's climate but also enhances its lush landscapes and vibrant marine life, inviting both residents and visitors to revel in the region's rich natural beauty.

December Average Humidity in Setubal

This chart illustrates the average monthly humidity levels in Setubal, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec85%75%72%70%70%63%60%60%68%74%83%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Setubal

In December, Setúbal, Portugal experiences a UV Index of 3, placing it in the moderate exposure category, with a burn time of 30 minutes. As the year concludes, the UV levels dip back down, reflecting a noticeable trend toward lower UV exposure during winter months. This decline follows the peak summer months, where the UV Index surged to extreme levels of 11 in June and remained high through July and August. Even in the fall, the UV Index only gradually decreased, remaining high until October. As the year wraps up, December’s moderate levels mean residents and visitors can comfortably enjoy outdoor activities, but it's still wise to be mindful of sun exposure. For more specifics on UV patterns throughout the year, check out Setubal UV Index.

Maximum UV Index Levels in Setubal for December

The chart shows the monthly maximum UV Index (UVI) for Setubal in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Setubal December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Setubal

In Setúbal, Portugal, December marks the beginning of the winter months with an average of 227 hours of sunshine. While this is a dip from the earlier months, it still offers a delightful contrast to the gloomier winter seen in many parts of Europe. The sunshine hours gradually increase from 186 hours in January, peaking in the summer with 422 hours in July, before tapering off again in the cooler months. This trend highlights Setúbal as an inviting destination year-round, where even December brings a gentle glow, allowing visitors to enjoy the mild climate and stunning coastal views during the festive season.

Monthly Sunshine Duration in Setubal: December Highlighted

The December sunshine duration represents the total number of hours Setubal experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec186h234h309h355h408h412h422h396h350h315h237h227h
Data source: Setubal December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Setubal During December

In Setúbal, Portugal, December's weather showcases a 42% chance of sunny days, which is a decline from the preceding month of November, where the likelihood rose to 69%. This trend signals an overall decrease in sunshine as the year draws to a close, contrasting with the sunnier summer months, where July and August boast 78% sun probability. Interestingly, while December’s sunshine potential is relatively modest, it still offers more sun than the winter's onset in January, which sits at 49%. Overall, those looking to embrace the mild winter weather in Setúbal can expect a blend of sun and cloud as they transition into the New Year, making it an appealing destination for those seeking a break from harsher winter conditions elsewhere.

Percentage of Sunny Days in December in Setubal

The chart illustrates the percentage of sunny days in Setubal throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Setubal experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec49%23%61%41%59%71%78%78%65%55%69%42%
Data source: Setubal December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Setubal in December

In Setubal, Portugal, the daylight duration exhibits a clear seasonal rhythm, with December marking the return to shorter days, offering just 9 hours of daylight. Following the longest days of summer in June and July, which enjoy up to 14 hours of sunlight, the days gradually shorten as autumn approaches. August sees a slight decline, maintaining 13 hours, while September, October, and November witness a gradual descent back to 10 hours in November. This trend reveals a natural ebb and flow, drawing residents and visitors alike to embrace the coziness of winter as they navigate the shifting daylight throughout the year.

Average Daylight Hours in Setubal for December

The chart illustrates the variation in daylight duration in Setubal throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 48m10h 45m11h 58m13h 13m14h 16m14h 48m14h 31m13h 35m12h 23m11h 8m10h 3m9h 30m
Data source: Setubal daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Setubal

As December settles into Setúbal, Portugal, the coastal winds begin to shift, bringing a gentle yet perceptible change. With an average wind speed of 4.8 m/s (11 mph), December stands out as a transitional month, slightly more breezy than the calmer autumn months that precede it. This uptick in wind speed reflects a gradual shift in the seasonal pattern, contrasting notably with the spring's lighter breezes, particularly March's 4.3 m/s (10 mph). As the year wraps up, the winds herald the arrival of winter, providing a refreshing chill that invigorates the picturesque landscape of Setúbal, making it a captivating time for both residents and visitors alike.

Average December Wind Speed in Setubal

The chart displays monthly wind speed patterns in Setubal, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.25.24.33.75.35.25.44.94.24.04.44.8 m/s
Data source: Setubal December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Setubal Compares to Other Months

The weather in Setubal 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 Setubal and find detailed weather information for every month.

In December, the weather features a mild temperature range, with a minimum of 6°C (43°F) and a maximum of 18°C (66°F), coupled with an average temperature of 14°C (57°F). This month experiences more precipitation, totaling 54 mm (2.1 in) across 7 days, while maintaining a consistent humidity of 85%.

Conversely, January presents slightly cooler conditions, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 20°C (68°F), and an average of 12°C (54°F). The precipitation decreases significantly to 34 mm (1.3 in) over just 4 days, yet humidity remains steady at 85%.

For a more detailed look at January weather, you can visit Setubal weather in January.

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 about 54 mm (2.1 in) of precipitation over approximately 7 days, and the humidity is relatively high at 85%. In contrast, February exhibits slightly cooler temperatures, with a minimum of 5°C (42°F) and a maximum of 21°C (71°F), averaging around 13°C (56°F). Precipitation remains similar at 53 mm (2.1 in) over 6 days, but the humidity drops to a more comfortable 75%. For those interested in more details, check out Setubal weather in February.

In December, temperatures in Setubal range from a minimum of 6°C (43°F) to a maximum of 18°C (66°F), with an average around 14°C (57°F). The month typically experiences 54 mm (2.1 in) of precipitation over about 7 days, accompanied by relatively high humidity at 85%. In contrast, March sees slightly warmer temperatures, with a minimum of 7°C (45°F) and a maximum of 24°C (75°F), while the average remains similar at 14°C (58°F). The precipitation increases to 66 mm (2.6 in) over 8 days, but humidity drops to a more comfortable 72%. For more detailed insights, you can check Setubal weather in March.

December and April present distinctly different weather patterns. 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 humidity tends to be high at 85%, and the month sees about 54 mm (2.1 in) of precipitation over 7 days. In contrast, April generally enjoys milder temperatures, with a minimum of 9°C (48°F) and a maximum of 24°C (76°F), averaging at 15°C (60°F). Although April experiences slightly more precipitation at 63 mm (2.5 in) across 11 days, the overall humidity drops to 70%. For a detailed look at the conditions in April, you can check this link: Setubal weather in April.

In December, the weather is generally cooler, with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 18°C (66°F). The month sees significant humidity at 85% and an average of 54 mm (2.1 in) of precipitation over about 7 days. In contrast, May brings much warmer conditions, with temperatures ranging from a minimum of 10°C (50°F) to a sweltering maximum of 31°C (87°F). The precipitation decreases to 31 mm (1.2 in) over just 4 days, and the humidity drops to a more comfortable 70%. For those interested in exploring more about the weather in May, you can visit Setubal weather in May.

In December, Setubal experiences cooler temperatures, with lows around 6°C (43°F) and average highs reaching 18°C (66°F). The month sees an average of 54 mm (2.1 in) of precipitation spread over about 7 days, coupled with high humidity levels at 85%. In contrast, June brings warmer weather, with minimum temperatures of 13°C (55°F) and daytime highs climbing to 31°C (89°F). Precipitation significantly decreases to just 8 mm (0.3 in) over about 2 days, and humidity levels drop to a more comfortable 63%. For a deeper look into the idyllic June weather, check out Setubal weather in June.

December and July present contrasting weather conditions. 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). This month also sees higher humidity levels at 85% and frequent precipitation, totaling 54 mm (2.1 in) over about 7 days. In contrast, July boasts a much warmer climate, with temperatures ranging from 15°C (59°F) to a peak of 31°C (88°F) and an average of 21°C (70°F). Rainfall is minimal, with only 4 mm (0.2 in) across just 1 day, and a lower humidity level of 60%. For a detailed look at July's weather patterns, check out Setubal weather in July.

In December, the weather in Setubal is notably 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). The month sees around 54 mm (2.1 in) of precipitation over approximately 7 days, contributing to a higher humidity level of 85%. In contrast, August offers a much warmer climate, with temperatures ranging from a minimum of 16°C (61°F) to a scorching maximum of 34°C (94°F) and an average of 21°C (71°F). The month is characterized by minimal rainfall of just 3 mm (0.1 in) over 0 days, leading to a more comfortable humidity level of 60%. For a closer look at the summer weather, visit Setubal weather in August.

December and September present quite contrasting weather conditions. In December, temperatures average around 14°C (57°F) with a minimum of 6°C (43°F) and a maximum of 18°C (66°F). This month sees higher humidity levels at 85% and receives more precipitation, totaling 54 mm (2.1 in) over about 7 days. In contrast, September boasts warmer temperatures, with an average of 21°C (69°F), a minimum of 14°C (57°F), and peaks reaching 30°C (86°F). The month is considerably drier, with only 18 mm (0.7 in) of rain falling over just 2 days, and humidity levels are notably lower at 67%. For more detailed information, check out Setubal weather in September.

The weather in October is generally warmer and drier compared to December. In October, temperatures range from a minimum of 10°C (50°F) to a maximum of 28°C (83°F), with an average of 19°C (66°F). In contrast, December sees lower temperatures, with a minimum of 6°C (43°F) and a maximum of 18°C (66°F), and an average of 14°C (57°F). Additionally, October experiences less precipitation, totaling 39 mm (1.5 in) over just 4 days, whereas December has a higher precipitation level of 54 mm (2.1 in) spread over 7 days, along with increased humidity at 85% compared to October's 74%. For more details on October weather, you can check Setubal weather in October.

When comparing the weather in 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 sees higher averages with temperatures fluctuating between a minimum of 8°C (47°F) and a peak of 23°C (73°F). Precipitation is also notably different; December experiences 54 mm (2.1 in) of rain over 7 days, whereas November records 69 mm (2.7 in) across 9 days. Humidity remains relatively consistent, with December at 85% and November at 83%. For more details on November's weather patterns, you can check Setubal weather in November.

Compare Setubal's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Setubal

As December unfolds in Setúbal, it brings a notable shift in climate compared to other months. Temperatures gently cool down, averaging around 14°C (57°F), prompting locals and visitors alike to embrace cozier attire. The humidity peaks at an impressive 85%, contributing to a unique, crisp atmosphere. While precipitation increases with about 54 mm over approximately 7 days, it often weaves in and out of sunshine, creating a picturesque backdrop for the charming city. This blend of cooler temperatures and damp conditions makes December a distinct time to experience Setúbal's winter allure. For more details, explore Setubal Climate.