December Weather in Monte Estoril, Portugal

Last updated: February 24, 2025

December in Monte Estoril, Portugal is characterized by mild temperatures, with a maximum reaching 17°C (63°F) and an average of 14°C (58°F), while nighttime lows can dip to 9°C (49°F). This coastal town experiences considerable humidity, averaging 85%, creating a refreshing atmosphere. Rainfall is a common sight, with 73 mm (2.9 in) of precipitation spread over approximately 10 days of the month. Visitors can expect a blend of cozy beach walks and vibrant holiday festivities, making it a charming winter getaway.

December Temperature in Monte Estoril

In December, Monte Estoril offers a mild reprieve as winter settles in, with temperatures typically ranging from a minimum of 9°C (49°F) to a maximum of 17°C (63°F). This month marks a subtle transition as the cooler air takes hold, with the average temperature hovering around 14°C (58°F). As the year draws to a close, December's climate is noticeably cooler than the preceding months, yet it remains relatively mild compared to many other regions, making it an inviting time for those seeking a peaceful escape by the coast. Visitors can enjoy the charm of the season without the harshness of winter, as the weather remains comfortable for both outdoor exploration and leisurely strolls along the stunning shoreline.

December Weather in Monte Estoril: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Monte Estoril, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec555657586163646465646058
Data source: Temperature data for Monte Estoril 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 Monte Estoril

In Monte Estoril, Portugal, December marks a notable transition in weather patterns as it wraps up the year with an average precipitation of 73 mm (2.9 in) spread across 10 days of rainfall. This increase in precipitation is a part of a broader trend observed from November's high of 89 mm and aligns with the region's characteristic wet winter season. Compared to the drier summer months, where rainfall dwindles dramatically, December represents a return to more saturated conditions, reflecting the shift towards cooler temperatures and heightened humidity. The consistent increase in rainfall from October through December underscores the importance of this period for replenishing local water sources and sustaining the lush landscape that characterizes this coastal region.

December Precipitation Trends in Monte Estoril

The chart displays monthly precipitation patterns in Monte Estoril, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4259647133123432538973
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Monte Estoril

In Monte Estoril, Portugal, December brings a return to higher humidity levels, reaching 85%, which matches January and reflects the region’s trend towards dampness as winter settles in. The months leading up to December show a gradual decline in humidity from 75% in February to a low of 60% during the summer months of July and August. As autumn arrives, humidity begins to rise again, peaking in December alongside November, suggesting a seasonal fluctuation that creates a lush, vibrant atmosphere when the rains return. This cyclical pattern highlights the region's transition from the warmth of summer to the cooler, wetter months, enveloping Monte Estoril in a refreshing embrace.

December Average Humidity in Monte Estoril

This chart illustrates the average monthly humidity levels in Monte Estoril, 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 Monte Estoril

In December, Monte Estoril experiences a UV Index of 3, indicating a moderate level of sun exposure, similar to January and November. This trend towards lower UV levels during the winter months contrasts sharply with the peak of summer, where indices soar to extreme levels, such as 11 in June. As the year progresses, sun exposure becomes less intense, reflecting the shorter days and lower sun angle. With a burn time of 30 minutes, residents and visitors can comfortably enjoy outdoor activities while still being mindful of skin protection. For more insights, visit the detailed Monte Estoril UV Index.

Maximum UV Index Levels in Monte Estoril for December

The chart shows the monthly maximum UV Index (UVI) for Monte Estoril 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: Monte Estoril 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 Monte Estoril

In December, Monte Estoril, Portugal, experiences a gentle decline in sunshine hours, with 224 hours illuminating the month—still a charming respite before the new year. While this figure marks a drop from the vibrant 405 hours of May and the peak 420 hours of July, it reflects a consistent yearly trend where sunshine gradually wanes from the summer months. Nonetheless, December's warmth and light continue to offer a delightful contrast to the colder climates experienced elsewhere, inviting visitors to bask in the soft, golden rays of the winter sun. As the year closes, Monte Estoril maintains its reputation as a serene retreat, blending mild weather with stunning coastal views, making it an alluring choice even in the heart of winter.

Monthly Sunshine Duration in Monte Estoril: December Highlighted

The December sunshine duration represents the total number of hours Monte Estoril 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.
JanFebMarAprMayJunJulAugSepOctNovDec183h231h307h351h405h409h420h395h348h313h236h224h
Data source: Monte Estoril December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Monte Estoril During December

In December, the likelihood of sunny weather in Monte Estoril, Portugal sees a dip to 39%, marking it as one of the more overcast months of the year. This contrasts notably with the sunnier summer months, where chances soar to 69% in July and hover around 66% in August and September. While the optimism of earlier fall months, like November, shows a robust 65% chance for sunshine, December's figures indicate a transition into winter's gloom. Nevertheless, the charming coastal town still experiences occasional sunny days, hinting at the variability that makes weather in Monte Estoril uniquely captivating.

Percentage of Sunny Days in December in Monte Estoril

The chart illustrates the percentage of sunny days in Monte Estoril 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 Monte Estoril experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%24%60%41%57%65%69%66%66%55%65%39%
Data source: Monte Estoril December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Monte Estoril in December

In Monte Estoril, Portugal, the rhythm of daylight dances gracefully through the year, peaking in the vibrant summer months. Starting with January’s 9 hours, the days gradually lengthen, reaching a sun-kissed maximum of 14 hours in both May and June. As summer gives way to autumn, the daylight begins to wane, descending back to 11 hours in October and dipping once again to 10 hours in November. December then welcomes the year’s shortest days, with just 9 hours of daylight, mirroring the beginning of the year. This clear trend of increasing daylight through spring and summer, followed by a gentle decline into winter, highlights the seasonal cycles that characterize life in this picturesque coastal town.

Average Daylight Hours in Monte Estoril for December

The chart illustrates the variation in daylight duration in Monte Estoril throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 46m10h 44m11h 58m13h 14m14h 17m14h 49m14h 32m13h 36m12h 23m11h 8m10h 2m9h 28m
Data source: Monte Estoril daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Monte Estoril

As December settles in Monte Estoril, Portugal, the winds begin to whisper tales of the year gone by, with an average speed of 6.7 m/s (15 mph). This month sees a slight uptick from November’s 6.5 m/s, maintaining a trend of consistent breezes that have prevailed throughout the fall. Comparing the seasonal shifts, the spring months notably showcase a decline in wind strength, dropping to a gentle 4.9 m/s (11 mph) by April, before a summer resurgence peaks at 7.3 m/s (16 mph) in both May and June. As the year concludes, December’s winds offer a refreshing embrace, hinting at the vitality of the approaching new year while remaining reminiscent of the calm summer days that preceded the cooler months.

Average December Wind Speed in Monte Estoril

The chart displays monthly wind speed patterns in Monte Estoril, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.96.96.04.97.37.37.26.45.45.16.56.7 m/s
Data source: Monte Estoril December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Monte Estoril Compares to Other Months

The weather in Monte Estoril 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 Monte Estoril and find detailed weather information for every month.

In December, temperatures in Monte Estoril range from a minimum of 9°C (49°F) to a maximum of 17°C (63°F), with an average temperature of 14°C (58°F). The month sees considerable precipitation, averaging 73 mm (2.9 in) over about 10 days and maintaining a high humidity of 85%.

In contrast, January experiences slightly cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 18°C (64°F), while the average temperature drops to 13°C (56°F). Additionally, January has less precipitation, totaling 42 mm (1.7 in) over only 7 days, yet humidity levels remain consistent at 85%.

For more detailed weather information, you can check Monte Estoril weather in January.

In comparing the weather between December and February, both months experience relatively mild temperatures, with December showing a slightly warmer average of 14°C (58°F) compared to February's average of 13°C (56°F). The minimum temperatures remain consistent, hovering around 9°C (49°F). However, December sees increased precipitation, with 73 mm (2.9 in) falling over 10 days, while February has less rainfall at 59 mm (2.3 in) over 8 days. Additionally, December's humidity is higher at 85%, while February enjoys a more comfortable level at 75%. For a more detailed look at February weather, you can visit Monte Estoril weather in February.

December and March present similar temperatures, with December having a minimum of 9°C (49°F) and an average of 14°C (58°F), while March features an average temperature slightly lower at 14°C (57°F) and a maximum that reaches up to 19°C (66°F). Precipitation is a bit more pronounced in December, with 73 mm (2.9 in) over 10 days compared to March's 64 mm (2.5 in) across 8 days. Additionally, December's humidity levels are noticeably higher at 85%, compared to March's 72%, making for a more comfortable atmosphere as spring approaches. For a detailed look at the climate during this transition, check out Monte Estoril weather in March.

In comparing December and April weather, both months showcase mild average temperatures, with December ranging from a minimum of 9°C (49°F) to a maximum of 17°C (63°F), while April's temperatures are slightly warmer, with a minimum of 10°C (50°F) and a maximum of 21°C (71°F). Precipitation levels are similar, with December receiving 73 mm (2.9 in) over 10 days and April having 71 mm (2.8 in) across 11 days. Notably, December exhibits higher humidity at 85%, compared to April's more moderate humidity level of 70%. For more details on the weather in April, you can visit Monte Estoril weather in April.

December and May present contrasting weather patterns, reflecting the shift from winter to spring. In December, temperatures range from a minimum of 9°C (49°F) to a maximum of 17°C (63°F), with an average of 14°C (58°F). The month experiences significant rainfall, with about 73 mm (2.9 in) spread over 10 days, and humidity levels are relatively high at 85%. In comparison, May offers warmer conditions, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 24°C (76°F) and an average of 16°C (61°F). The precipitation drops to just 33 mm (1.3 in) over 3 days, and the humidity decreases to 70%, creating a more pleasant and drier climate. For a closer look at the weather conditions in May, you can visit Monte Estoril weather in May.

In December, the weather is notably cooler with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 17°C (63°F) and an average of 14°C (58°F). The month experiences higher precipitation, with about 73 mm (2.9 in) falling over approximately 10 days, contributing to a high humidity level of 85%. In contrast, June boasts milder temperatures, with a minimum of 14°C (58°F) and a maximum of 22°C (72°F), averaging at 17°C (63°F). Rainfall is significantly less, totaling just 12 mm (0.5 in) over only 2 days, and the humidity drops to a more comfortable 63%. For a closer look at the weather in June, you can check out Monte Estoril weather in June.

The weather in December is notably cooler and wetter compared to July. In December, temperatures typically range from a minimum of 9°C (49°F) to a maximum of 17°C (63°F), with an average of 14°C (58°F). This month also sees considerable precipitation, with 73 mm (2.9 in) of rain spread over about 10 days, accompanied by high humidity levels at 85%. In contrast, July features much warmer weather, with temperatures varying 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). Moreover, July boasts significantly less precipitation, with only 3 mm (0.1 in) across zero rainy days and a more comfortable humidity level of 60%. For a more detailed look at what to expect, check out Monte Estoril weather in July.

In December, the weather is noticeably cooler, with average temperatures ranging from 9°C (49°F) to a maximum of 17°C (63°F), along with higher precipitation levels of 73 mm (2.9 in) spread over about 10 days. The high humidity of 85% contributes to a damp and chilly atmosphere. In contrast, August boasts milder temperatures, with an average ranging from 16°C (61°F) to a peak of 23°C (74°F), and significantly less rainfall at just 4 mm (0.1 in) occurring over only 1 day. The humidity in August is also lower at 60%, making it feel more comfortable. For more insights into the weather, check out Monte Estoril weather in August.

When comparing the weather in December and September, it's clear that September tends to be warmer and drier. September boasts a minimum temperature of 15°C (60°F) and an average high of 23°C (74°F), with only 32 mm (1.2 in) of precipitation over just 2 days, contributing to a humidity level of 67%. In contrast, December experiences cooler temperatures, with a minimum of 9°C (49°F) and a maximum of 17°C (63°F), along with significantly higher precipitation at 73 mm (2.9 in) over 10 days and a humidity level of 85%. For more details on September weather in Monte Estoril, you can check out Monte Estoril weather in September.

In comparing the weather between December and October, December tends to be cooler, with average temperatures ranging from a minimum of 9°C (49°F) to a maximum of 17°C (63°F), whereas October enjoys warmer temperatures, boasting an average of 18°C (64°F) and highs reaching 23°C (74°F). Additionally, December experiences more precipitation, totaling 73 mm (2.9 in) over approximately 10 days, compared to October's 53 mm (2.1 in) spread over just 6 days. The humidity also rises in December to 85%, surpassing October's 74%. For a more detailed look at October's climate, you can visit Monte Estoril weather in October.

In comparing the weather between November and December, December generally sees slightly cooler temperatures with an average of 14°C (58°F) compared to November's 16°C (60°F). The minimum and maximum temperatures in December range from 9°C (49°F) to 17°C (63°F), while in November, they range from 11°C (53°F) to 20°C (68°F). Precipitation also decreases in December, with 73 mm (2.9 in) over 10 days, compared to November's 89 mm (3.5 in) over 11 days. Humidity remains fairly similar, with December at 85% and November at 83%. For a deeper look into November's weather specifics, you can check Monte Estoril weather in November.

Compare Monte Estoril's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Monte Estoril

As December unfolds in Monte Estoril, it brings a marked shift in weather compared to the earlier months of the year. With average temperatures hovering around 14°C (58°F), residents and visitors can expect a cooler climate, particularly in the evenings when temperatures dip to about 9°C (49°F). The high humidity levels of 85% coupled with approximately 73 mm (2.9 in) of rain across ten days can lead to a rather damp atmosphere, setting a cozy yet occasionally chilly tone for the month. This transitional weather invites a different pace of life, making it an ideal time for enjoying local festivities and warm gatherings. For a closer look at how the weather shapes your experience, visit Monte Estoril Climate.