December Weather in Mosteiros, Portugal

Last updated: February 24, 2025

December in Mosteiros, Portugal, offers a mild coastal climate, with daytime temperatures reaching a pleasant maximum of 20°C (69°F) and an average of 17°C (63°F). Nighttime brings cooler conditions, dropping to a minimum of 12°C (54°F). This month is characterized by considerable precipitation, totaling 109 mm (4.3 in) over 13 days, contributing to a humid atmosphere with an average relative humidity of 84%. Visitors can expect a mix of rain and mild weather, perfect for exploring the stunning landscapes of this picturesque village.

December Temperature in Mosteiros

In Mosteiros, Portugal, December brings a mild transition towards winter, with temperatures exhibiting a cozy demeanor. The average temperature hovers around 17°C (63°F), complemented by a range that sees nighttime lows at 12°C (54°F) and daytime highs reaching up to 20°C (69°F). This marks a slight drop from November's warmth, yet it still offers a comfortable climate for exploration. As the year winds down, the weather remains inviting, showcasing a trend of gradual cooling throughout the fall months, while maintaining a pleasant atmosphere that characterizes Mosteiros' unique coastal charm. Enjoying this blend of mild temperatures and the fresh sea breeze makes December an enchanting time to visit.

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

The chart illustrates December temperature patterns in Mosteiros, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec615959606266697272696563
Data source: Temperature data for Mosteiros 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 Mosteiros

December brings a significant increase in rainfall to Mosteiros, Portugal, with precipitation peaking at 109 mm (4.3 in) over an average of 13 days. This surge marks a departure from the lighter, drier months of summer, where July experienced a mere 17 mm. As the year draws to a close, the steady climb in rainfall from October's 100 mm reflects the onset of winter weather, enriching the landscape and supporting local ecosystems. Despite the potential for damp days, the vibrant scenery and lush greenery that December's rain fosters make it a compelling time to experience the natural beauty of Mosteiros.

December Precipitation Trends in Mosteiros

The chart displays monthly precipitation patterns in Mosteiros, 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.
JanFebMarAprMayJunJulAugSepOctNovDec60885373513517425510093109
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mosteiros

In Mosteiros, Portugal, December marks a noticeable peak in humidity, reaching 84%, the highest level of the year. This winter month showcases a subtle upward trend in humidity, starting from the previous months which generally hover around the lower 80s. The transition from October and November's 79% to December's 84% indicates a shift as the weather cools and the atmosphere absorbs more moisture. As the year closes, the increasing humidity reflects the region’s characteristic coastal climate, providing a crisp and refreshing backdrop for winter activities. Overall, while humidity levels fluctuate throughout the year, December's significant rise highlights the natural rhythm of Mosteiros’ weather patterns.

December Average Humidity in Mosteiros

This chart illustrates the average monthly humidity levels in Mosteiros, 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.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%82%83%81%82%83%81%81%79%79%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mosteiros

In Mosteiros, Portugal, the December UV Index returns to a moderate level of 3, mirroring the conditions seen in January and November. As the year winds down, the burn time extends to a comfortable 30 minutes, allowing for relaxed outdoor enjoyment. This trend of moderate exposure stands in stark contrast to the peak summer months, where the UV Index soared to extremes of 11 in June. Notably, the gradual decline in UV levels from the highs of summer to the cooler winter months showcases a natural ebb and flow, emphasizing the importance of adapting sun safety measures throughout the year. For more detailed insights, check out Mosteiros UV Index.

Maximum UV Index Levels in Mosteiros for December

The chart shows the monthly maximum UV Index (UVI) for Mosteiros 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.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109743
Data source: Mosteiros 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 Mosteiros

In Mosteiros, Portugal, December welcomes a gentle transition into the quieter sunlit days of winter. With 210 hours of sunshine, this month is an inviting precursor to the brighter days ahead, marking a decline from the bustling summer months that boast over 380 hours in July. As the year draws to a close, the sun makes its presence known, offering a comforting warmth amidst the cooler temperatures. Comparing December to November’s 222 hours, the sun still manages to shine brightly, although it is less frequent than in the spring and summer months. This trend, a gradual descent from the vibrant 346 hours in May to the soft glow of December, paints a picturesque landscape that invites locals and visitors alike to relish the serene beauty of coastal life in winter, where the soft light of the sun mingles with the enchanting scenery.

Monthly Sunshine Duration in Mosteiros: December Highlighted

The December sunshine duration represents the total number of hours Mosteiros 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.
JanFebMarAprMayJunJulAugSepOctNovDec150h203h271h300h346h364h384h367h328h272h222h210h
Data source: Mosteiros December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mosteiros During December

In December, Mosteiros, Portugal experiences a modest 34% chance of sunny weather, a slight improvement compared to the chillier months of October and November, both seeing a 32% likelihood of sunshine. As the year progresses toward winter, the potential for sun begins to wane, peaking in the warmer summer months with 56% in August. Interestingly, the transition to winter reveals a gradual decline in sunny days, punctuated by higher chances in late spring and early summer. December's weather is characterized by cool temperatures and the occasional burst of sunshine, hinting at the shifting patterns of seasonal weather that charm visitors to this picturesque locale.

Percentage of Sunny Days in December in Mosteiros

The chart illustrates the percentage of sunny days in Mosteiros 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 Mosteiros experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%26%25%35%38%47%45%56%50%32%32%34%
Data source: Mosteiros December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mosteiros in December

As the year winds down, December in Mosteiros, Portugal, welcomes a return to shorter days, with daylight lasting about 9 hours. This decrease in sunlight marks the end of a gradual increase from January's 9 hours to a peak of 14 hours in both May and June. Following the height of summer, daylight hours begin to decline, a trend that continues through the autumn months of September and October before hitting their low in the depths of winter. Despite the reduced daylight, December brings a cozy charm, inviting residents and visitors alike to enjoy the beauty of the season while embracing the unique lifestyle that shorter days inspire.

Average Daylight Hours in Mosteiros for December

The chart illustrates the variation in daylight duration in Mosteiros throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 51m10h 47m11h 58m13h 11m14h 13m14h 44m14h 27m13h 33m12h 22m11h 10m10h 6m9h 34m
Data source: Mosteiros daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Mosteiros

In December, Mosteiros, Portugal, experiences an average wind speed of 8.4 m/s (19 mph), which marks a slight uptick from the relatively calmer months of mid-year. Throughout the year, wind speeds tend to peak in February at 10.7 m/s (24 mph), but December's breezy conditions signal the return of more vigorous winds typical of the winter months. In contrast to the summer's gentle breezes, the winter winds begin to make their presence felt, transitioning from the low summer speeds of 5.4 m/s (12 mph) in June to a more invigorating December. This seasonal shift underscores a dynamic climate in Mosteiros, where each month brings its unique rhythm, but December heralds the anticipation of higher winds as the year draws to a close.

Average December Wind Speed in Mosteiros

The chart displays monthly wind speed patterns in Mosteiros, 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.
JanFebMarAprMayJunJulAugSepOctNovDec9.910.76.17.56.15.46.25.95.96.37.98.4 m/s
Data source: Mosteiros December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Mosteiros Compares to Other Months

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

In December, the weather is slightly warmer with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 20°C (69°F), accompanied by significant rainfall totaling 109 mm (4.3 in) over 13 days and a humidity level of 84%. In contrast, January experiences a slight dip in temperature, with an average of 16°C (61°F) and maximums reaching 19°C (66°F). The precipitation also decreases significantly to 60 mm (2.4 in) over 11 days, and humidity drops to 82%. For more detailed insights about January weather, you can visit Mosteiros weather in January.

In December, the weather is generally warmer, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 20°C (69°F), accompanied by higher precipitation levels of 109 mm (4.3 in) over 13 days and a humidity of 84%. In contrast, February experiences slightly cooler temperatures, with a minimum of 10°C (51°F) and a maximum of 18°C (65°F). This month also sees reduced precipitation at 88 mm (3.5 in), while humidity drops to 80%. Overall, February is characterized by milder temperatures and less rainfall compared to December. For more detailed insights, check out Mosteiros weather in February.

December and March present distinct weather patterns, with December generally being slightly warmer. In December, temperatures range from a minimum of 12°C (54°F) to a maximum of 20°C (69°F), while March sees temperatures ranging from 11°C (52°F) to a maximum of 18°C (65°F). Precipitation levels are also notably higher in December, with 109 mm (4.3 in) over 13 days compared to March's 53 mm (2.1 in) spread over 11 days. Humidity in both months is relatively high but is marginally higher in December at 84% compared to March's 82%. For more detailed information on March weather, you can check Mosteiros weather in March.

In comparing the weather between December and April, we see some subtle differences despite their relatively close averages. December generally has slightly warmer temperatures, with an average of 17°C (63°F) compared to April's average of 16°C (60°F). Additionally, December experiences more precipitation, with 109 mm (4.3 in) of rain over 13 days, whereas April sees a lower total of 73 mm (2.9 in) also spread across 13 days. Humidity levels are quite similar, remaining high at 84% in December and 83% in April. For more detailed insights on April's weather, you can visit Mosteiros weather in April.

When comparing the weather in December and May, both months share similar average temperatures, with minimums around 12°C (54°F) and maximums reaching 20°C (68-69°F). However, December tends to be wetter, receiving 109 mm (4.3 in) of precipitation over 13 days, while May boasts significantly less rain at 51 mm (2.0 in) across 10 days. Additionally, humidity levels are slightly higher in December at 84%, compared to May’s 81%. For more detailed information on May conditions, you can check Mosteiros weather in May.

December and June present contrasting weather patterns. In December, the temperatures range from a minimum of 12°C (54°F) to a maximum of 20°C (69°F), with an average of 17°C (63°F). This month experiences significant rainfall, totaling 109 mm (4.3 in) over about 13 days, accompanied by high humidity at 84%. In contrast, June offers slightly warmer temperatures, with a minimum of 14°C (58°F) and a maximum reaching 22°C (72°F), averaging 19°C (66°F). Rainfall is considerably lighter in June, with only 35 mm (1.4 in) over 7 days and a relatively lower humidity of 82%. For more detailed insights, you can explore Mosteiros weather in June.

December and July exhibit noticeably different weather patterns. In December, the temperatures range from a minimum of 12°C (54°F) to a maximum of 20°C (69°F), with an average of 17°C (63°F). This month also sees significant precipitation, averaging 109 mm (4.3 in) over 13 days, contributing to a high humidity level of 84%. In contrast, July boasts milder temperatures with a minimum of 18°C (65°F) and a maximum of 23°C (74°F), averaging 21°C (70°F). Precipitation drops dramatically to just 17 mm (0.7 in) over only 5 days, while humidity remains slightly lower at 83%. For more detailed information, you can check Mosteiros weather in July.

When comparing the weather in December and August, notable differences emerge in temperature and precipitation. December features cooler temperatures, with a minimum of 12°C (54°F) and an average of 17°C (63°F), while August enjoys warmer conditions, ranging from a minimum of 20°C (68°F) and averaging 22°C (72°F). In terms of precipitation, December experiences significantly more rain, with 109 mm (4.3 in) over 13 days, compared to August's much lighter rainfall of 42 mm (1.6 in) across just 8 days. Humidity levels are relatively similar, with December at 84% and August slightly lower at 81%. For a more detailed look at August weather, you can check Mosteiros weather in August.

In December, the weather is generally cooler with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 20°C (69°F), with an average of 17°C (63°F). The month sees a considerable amount of precipitation at 109 mm (4.3 in) over 13 days, and the humidity is relatively high at 84%. In contrast, September boasts warmer temperatures, with a minimum of 19°C (67°F) and a maximum of 24°C (76°F), averaging around 22°C (72°F). Precipitation is also lower in September, totaling 55 mm (2.2 in) across 10 days and a slightly lower humidity level of 81%. For more detailed information, you can check the Mosteiros weather in September.

December weather is generally cooler than October, with average temperatures dropping from 21°C (69°F) in October to 17°C (63°F) in December. Additionally, December sees a slight increase in precipitation, totaling 109 mm (4.3 in) over 13 days, compared to 100 mm (4.0 in) across 14 days in October. Humidity levels are higher in December, reaching 84%, compared to 79% in October, contributing to a more damp and cooler atmosphere. For more detailed information about October weather, you can visit Mosteiros weather in October.

December weather shows slightly cooler temperatures compared to November, with average temperatures dropping from 18°C (65°F) in November to 17°C (63°F) in December. While both months experience a minimum temperature of 12°C (54°F), December's maximum temperature is lower at 20°C (69°F), compared to November's 23°C (74°F). Precipitation increases in December, reaching 109 mm (4.3 in) over 13 days, which is higher than November's 93 mm (3.6 in) for the same number of rainy days. Additionally, December experiences a higher humidity level at 84%, compared to November's 79%. For a more detailed comparison, you can explore Mosteiros weather in November.

Compare Mosteiros's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Mosteiros

In December, the weather in Mosteiros takes on a distinct character, marked by cooler temperatures and increased precipitation compared to other months. With the average high dipping to around 17°C, residents and visitors can expect a more chilly and damp atmosphere, characterized by higher humidity levels that hover around 84%. The 13 days of rain contribute to a cozy, tranquil vibe, setting the scene for holiday festivities. This contrasts sharply with the warmer, sunnier conditions of earlier months, making December a unique time to experience Mosteiros’ charm. For more detailed insights into the weather patterns throughout the year, visit Mosteiros Climate.