Last updated: February 24, 2025
December in São Sebastião, Portugal boasts a mild climate, with average temperatures hovering around 17°C (63°F). Daily highs reach up to 20°C (68°F), while nighttime temperatures can drop to a minimum of 12°C (53°F). This month is characterized by heightened humidity levels of 85%, creating a cozy atmosphere. Visitors should prepare for occasional rainfall, as 122 mm (4.8 in) of precipitation is expected over approximately 13 days. Whether you’re strolling along the picturesque coastline or exploring the local culture, December offers a unique and inviting experience in this charming coastal town.
In December, São Sebastião, Portugal, begins to usher in a subtle chill as temperatures progressively decline from the warmth of autumn. With minimums around 12°C (53°F) and maximums reaching 20°C (68°F), the climate remains relatively mild for winter. The average temperature of 17°C (63°F) creates a comfortable ambiance, ideal for exploring the picturesque surroundings without the oppressive heat. As the year wraps up, visitors can enjoy the blend of crisp air and gentle sunshine, making December a delightful time to experience the charming coastal town in a quieter, more intimate setting.
December in São Sebastião, Portugal, marks a notable peak in precipitation, with 122 mm (4.8 in) of rain falling over 13 days. This increase continues the trend seen in November, where rainfall reached 106 mm (4.2 in), indicating a significant shift towards wetter conditions as the year closes. The month outpaces the earlier part of the year, where amounts were consistently lower; for instance, the driest months like July and June recorded just 20 mm (0.8 in) and 39 mm (1.5 in), respectively. As winter sets in, residents and visitors alike should prepare for the lush green landscapes that emerge from this higher December rainfall, showcasing the beauty of São Sebastião during the rainy season.
As December unfolds in São Sebastião, Portugal, humidity levels rise to 85%, marking a notable increase compared to the preceding months. This trend of elevated humidity is characteristic of the latter part of the year, with July peaking at 86% before tapering slightly in August and September. The overall consistency in humidity throughout the year, hovering around the 83-84% range, suggests a mild Mediterranean climate. However, December’s jump indicates a shift as the region approaches the cooler winter months. Despite this increase, the humidity remains integral to São Sebastião's charm, contributing to its lush landscapes and vibrant ecosystem.
In December, Sao Sebastiao, Portugal, experiences a UV Index of 3, indicating a moderate level of sun exposure, similar to that in January and February. With a burn time of 30 minutes, this is a time when sun protection is advised for prolonged outdoor activities. Notably, the UV Index begins to decrease after the intense summer months, where values peak at 11 in June, showcasing a clear trend of diminishing UV radiation as we approach winter. This seasonal shift highlights the importance of adapting sun safety measures, particularly during the higher months of April to September. For more details on UV Index patterns, visit Sao Sebastiao UV Index.
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December in São Sebastião, Portugal, beckons with a gentle warmth, providing 194 hours of sunshine—a striking contrast to the year’s earlier months. As the year comes to a close, the sun begins to dip from its summer apex of 380 hours in July, but remains a welcome companion. While the days shorten, December still captures a vibrant essence, nestled between the cozy glow of autumn and the crisp promise of winter. This month not only signifies a downturn from the summer highs but also reflects the moderate embrace of seasonal change, reminding us that even in the depth of winter, light and warmth persist.
In December, Sao Sebastiao, Portugal, experiences a 31% chance of sunny weather, positioning it among the more favorable months as the year wraps up. While the likelihood of sun dips slightly from the summer peak in August, where it soars to 51%, it still offers a promising respite compared to the preceding months like November with just 26% sunshine. The gradual climb from the winter months into late spring suggests that as the year progresses, residents and visitors can increasingly look forward to clearer skies. This trend highlights December as a potential window of opportunity for outdoor activities, enhancing the charm of this coastal destination.
In Sao Sebastiao, Portugal, the daylight duration showcases a distinct seasonal rhythm throughout the year. As winter approaches in December, the days grow shorter, offering only 9 hours of daylight, a contrast to the lengthy 14-hour days experienced in the late spring and early summer months of May and June. Following a gradual increase from January's 9 hours to a peak of 14 hours in the summer, daylight begins to recede steadily from August onward. This cyclical pattern not only highlights the beauty of seasonal change but also invites a sense of reflection as the light wanes, creating cozy winter days perfect for enjoying the splendor of the surrounding landscapes.
As December rolls into São Sebastião, the wind begins to make its presence known, averaging 8.9 m/s (20 mph)—notably higher than the calmer summer months. This month marks a transition from the gentle breezes of June and July, which lingered around 4.8 to 6.3 m/s (11 to 14 mph), bringing a refreshing change as the region prepares for winter. With wind speeds gradually increasing from 6.6 m/s in October to 8.4 m/s in November, December offers a taste of the more robust gales typical of the colder season. This upswing not only adds a spirited energy to the atmosphere but also invites wind enthusiasts and nature lovers alike to embrace the invigorating coastal conditions that define the month.
The weather in Sao Sebastiao 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 Sao Sebastiao and find detailed weather information for every month.
In December, temperatures in Sao Sebastiao range from a minimum of 12°C (53°F) to a maximum of 20°C (68°F), with an average of 17°C (63°F). This month experiences significant rainfall, with 122 mm (4.8 in) accumulating over 13 days, and a humidity level of 85%. In contrast, January sees slightly cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 19°C (66°F), averaging 16°C (61°F). Precipitation decreases to 78 mm (3.1 in) over 11 days, accompanied by a slightly lower humidity of 84%. For more detailed information on January weather, visit Sao Sebastiao weather in January.
In December, the weather in Sao Sebastiao is generally milder, with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 20°C (68°F). This month experiences a higher level of precipitation, with a total of 122 mm (4.8 in) spread over 13 days, and humidity levels are notably high at 85%. In contrast, February sees slightly cooler conditions, with average temperatures from 10°C (50°F) to 18°C (65°F). Precipitation decreases to 78 mm (3.1 in) over 14 days, and humidity drops slightly to 83%. For a closer look at February weather specifics, check out Sao Sebastiao weather in February.
December and March present contrasting yet mild weather conditions. In December, temperatures range from a minimum of 12°C (53°F) to a maximum of 20°C (68°F), with an average of 17°C (63°F). This month also experiences significant rainfall, totaling 122 mm (4.8 in) over approximately 13 days, contributing to a high humidity level of 85%. In comparison, March offers slightly cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 18°C (64°F), averaging 15°C (59°F). Rainfall is considerably less, at 49 mm (1.9 in) across about 9 days, resulting in a similarly high humidity of 84%. For more detailed information, you can explore Sao Sebastiao weather in March.
When comparing the weather in December and April, we can see some notable differences. December features slightly warmer average temperatures, ranging from a minimum of 12°C (53°F) to a maximum of 20°C (68°F), while April's temperatures are a bit cooler, with a minimum of 10°C (51°F) and a maximum of 18°C (64°F). Both months experience precipitation on approximately 13 days, but December sees significantly more rainfall, with 122 mm (4.8 in) compared to April's 77 mm (3.0 in). Humidity levels are also comparable, standing at 85% in December and 84% in April. For more detailed information on April's weather, you can check out Sao Sebastiao weather in April.
In December, the weather is slightly warmer with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 20°C (68°F). This month experiences higher precipitation at 122 mm (4.8 in) over 13 days, contributing to a humid environment with an average humidity of 85%. In contrast, May offers milder overall temperatures, with averages of 12°C (53°F) for the minimum and 19°C (67°F) for the maximum. The month sees significantly less rainfall at 51 mm (2.0 in) spread over just 9 days, resulting in a slightly drier atmosphere with 83% humidity. For a detailed look at Sao Sebastiao weather in May, visit Sao Sebastiao weather in May.
In December, the weather is generally cooler, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 20°C (68°F) and an average of 17°C (63°F). The month experiences a significant amount of rainfall, with approximately 122 mm (4.8 in) of precipitation over 13 days, accompanied by high humidity at 85%. In contrast, June offers slightly warmer temperatures, with a minimum of 14°C (58°F), an average of 18°C (66°F), and a maximum of 22°C (72°F). Rainfall in June is considerably less, at 39 mm (1.5 in) over just 6 days, and humidity remains relatively stable at 84%. For more details on the pleasant weather in June, you can check Sao Sebastiao weather in June.
In December, temperatures in Sao Sebastiao range from a minimum of 12°C (53°F) to a maximum of 20°C (68°F), with an average of 17°C (63°F). The month experiences frequent rainfall, totaling 122 mm (4.8 in) over 13 days, and humidity levels are at a high 85%. In contrast, July offers warmer weather, with minimum temperatures of 18°C (65°F) and a maxima reaching 23°C (74°F), averaging around 21°C (70°F). Rainfall is minimal in July, with just 20 mm (0.8 in) over 4 days, and humidity remains slightly higher at 86%. For a detailed look at July's temperatures and conditions, visit Sao Sebastiao weather in July.
Comparing the weather in December and August reveals notable differences. December experiences cooler temperatures, with an average of 17°C (63°F) and a maximum of 20°C (68°F), while August is warmer, boasting an average of 22°C (72°F) and reaching highs of 24°C (76°F). Additionally, December is significantly wetter, receiving 122 mm (4.8 in) of precipitation over approximately 13 days compared to August's 45 mm (1.8 in) and just 8 rainy days. Humidity levels are relatively high in both months, with December slightly higher at 85% compared to August's 82%. For more detailed information about the August weather, you can check Sao Sebastiao weather in August.
December weather tends to be cooler and wetter compared to September. In December, temperatures range from a minimum of 12°C (53°F) to a maximum of 20°C (68°F) with an average of 17°C (63°F), while September enjoys milder temperatures that vary from 19°C (66°F) to 24°C (76°F), averaging at 22°C (71°F). Precipitation is also more significant in December, with 122 mm (4.8 in) over 13 days, compared to September's 45 mm (1.8 in) over 11 days. Additionally, December's humidity is slightly higher at 85% versus September’s 82%. For more detailed information, you can check Sao Sebastiao weather in September.
When comparing the weather in December to that of October, December tends to be cooler and more humid. In December, temperatures range from a minimum of 12°C (53°F) to a maximum of 20°C (68°F), with an average temperature of 17°C (63°F). This contrasts with October, where the temperatures are slightly warmer, with a minimum of 15°C (59°F) and a maximum of 24°C (75°F), averaging at 20°C (69°F). Additionally, December experiences significantly more precipitation, totaling 122 mm (4.8 in) over 13 days, compared to October's 83 mm (3.3 in). Humidity levels are also higher in December at 85%, compared to October's 79%. For more detailed insights on October weather, check out Sao Sebastiao weather in October.
In comparing the weather of December to that of November, it is evident that December experiences slightly cooler temperatures, with a minimum of 12°C (53°F) and a maximum of 20°C (68°F), compared to November's minimum of 13°C (55°F) and maximum of 22°C (71°F). Precipitation is higher in December, totaling 122 mm (4.8 in) over 13 days, while November sees a bit less at 106 mm (4.2 in) across the same number of days. Additionally, December has higher humidity levels at 85% compared to November's 80%. For more insights into November weather, check this link: Sao Sebastiao weather in November.
As December rolls in, Sao Sebastiao experiences a notable shift in weather, setting it apart from the balmy warmth of the previous months. With temperatures averaging around 17°C (63°F) and dipping to a comfortable 12°C (53°F) at night, the air takes on a crisp edge that invites cozy evenings. Rainfall becomes more frequent, contributing 122 mm (4.8 in) of precipitation over approximately 13 days, which enhances the lush greenery of the landscape. The humidity also rises to about 85%, adding a refreshing chill to the atmosphere. If you're curious about how these conditions shape the overall climate of the region, explore more in detail at Sao Sebastiao Climate.