Last updated: February 24, 2025
December in Calheta, Portugal, offers a mild coastal climate with an average temperature of 17°C (63°F), punctuated by maximums reaching up to 21°C (70°F) and minimums dipping to 12°C (54°F). This month sees an average precipitation of 77 mm (3.0 in) over approximately 8 days, contributing to the region’s lush landscapes. With a humidity level around 75%, visitors can expect a refreshing atmosphere, ideal for exploring the stunning natural beauty and vibrant local culture Calheta has to offer. The combination of mild temperatures and occasional rain creates a unique and inviting winter destination.
In Calheta, Portugal, December marks the transition into cooler winter months while still maintaining a mild climate. With minimum temperatures averaging 12°C (54°F) and maximums reaching up to 21°C (70°F), the weather remains quite pleasant compared to many other regions in winter. The average temperature hovers around 17°C (63°F), suggesting that outdoor activities can still be enjoyed under relatively sunny skies. As the year draws to a close, it's fascinating to see how December's temperatures cleverly blend the warmth of autumn with the coolness of winter, making it an ideal destination for those seeking a gentle escape from the harsher cold of northern winters.
December in Calheta, Portugal, marks the peak of the rainy season with 77 mm (3.0 in) of precipitation, occurring over 8 days, making it one of the wettest months of the year. This significant uptick in rainfall follows a trend established in November, which also saw considerable precipitation, suggesting a transition into the heart of winter. As the year winds down, residents can expect a landscape refreshed by regular showers, contrasting sharply with the almost dry summer months of July and August, which accumulate merely 3 mm each. This pattern of increased moisture in late fall hints at a vibrant and lush environment that thrives in the cooling temperatures, setting the stage for a rejuvenating winter season.
In Calheta, Portugal, December marks the end of a subtle humid shift experienced throughout the year. With humidity levels dropping back to 75%, December mirrors the drier conditions of November, contrasting with the summer peak in July and August, where humidity soared to 83%. This month encapsulates a trend of gradual increase from the cooler months of early spring, peaking in late summer and gently receding as autumn closes. Overall, December's humidity reflects a stabilized pattern, maintaining the refreshing coastal climate that defines this charming region.
In December, Calheta, Portugal, experiences a moderate UV Index of 4, which translates to a burn time of 30 minutes for unprotected skin. This signals the gradual decline of UV intensity as the year comes to an end, following the peak extremes seen in the summer months. With the index hovering around 4, residents and visitors alike can enjoy outdoor activities with a significantly reduced risk of sunburn compared to the scorching highs of May through August, where UV levels soared to dangerous extremes. As winter sets in, it's a great time to embrace outdoor adventures while remaining mindful of UV exposure. For further details and daily updates, check the Calheta UV Index.
UV Risk Categories
In December, Calheta, Portugal, enjoys a radiant 246 hours of sunshine, marking a delightful closing to the year's sun-drenched months. As daylight transitions from November, where it received 260 hours, a slight dip hints at the arrival of winter. However, December's sunshine still surpasses the less luminous days of January, which offers only 191 hours. The trends over the months reveal a captivating journey from the crisp beginnings of the year, steadily climbing through spring and summer, peaking at 391 hours in July before gradually descending. This cyclical dance of light showcases Calheta's charm, where even in the cooler month of December, the sun continues to brighten the landscape, inviting both locals and visitors to bask in the lingering warmth of the year’s end.
In Calheta, Portugal, the likelihood of experiencing sunny weather tends to fluctuate throughout the year, peaking during the summer months. While July boasts an impressive 81% chance of sunshine, December lags slightly behind with a 46% chance. This marks a modest decline from the previous months, such as November with a 51% likelihood. Interestingly, December's numbers reflect a transitional phase as the region inches toward winter, although they are relatively higher than the winter months that follow. Thus, while sunny days in December may be less certain, they remain a delightful possibility amidst the cooler season.
In Calheta, Portugal, December marks a return to shorter days, with only 10 hours of daylight—a figure that mirrors the beginning of the year in January. As the months transition from winter to spring, daylight gradually increases, peaking at 14 hours in June and July. Following this vibrant summer stretch, daylight begins to taper off, descending back to 11 hours by October and returning to the 10-hour mark in both December and January. This cyclical pattern reflects the region's temperate climate, offering visitors a beautiful variation of light throughout the year, while the consistent daylight hours in December invite a cozy, reflective atmosphere as the holiday season approaches.
As December arrives in Calheta, Portugal, the coastal winds begin to pick up, showcasing an average speed of 5.7 m/s (13 mph)—the highest of the year. This notable increase from the previous months hints at a seasonal shift, as wind speeds have been steadily fluctuating throughout the year. November, with its moderate 4.5 m/s, serves as a gentle precursor to the brisk December gusts, which bring a refreshing chill and invigorating atmosphere to the region. Notably, the trend during the second half of the year reveals a rise in wind strength that peaks in December, creating ideal conditions for those seeking adventure and exploration along the picturesque coastline.
The weather in Calheta 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 Calheta and find detailed weather information for every month.
In comparing the weather of December and January, both months showcase relatively mild temperatures, with average highs reaching around 21°C (70°F). December typically experiences slightly warmer conditions with minimum temperatures averaging at 12°C (54°F) and a higher average of 17°C (63°F). In contrast, January sees a minor dip, with minimum temperatures at 11°C (52°F) and an average of 16°C (61°F).
Precipitation levels also differ, as December receives more rainfall with 77 mm (3.0 in) spread over about 8 days, while January enjoys significantly less, totaling just 37 mm (1.4 in) over 6 days. Humidity remains consistent at 75% for both months. For a more detailed look at January weather in Calheta, you can check out Calheta weather in January.
In December, the weather features slightly warmer temperatures, with a minimum of 12°C (54°F) and an average of 17°C (63°F), while February has a minimum of 11°C (52°F) and an average of 16°C (60°F). Despite the minor drop in temperature, both months see a maximum of 21°C (70°F). Precipitation is more prominent in December at 77 mm (3.0 in) compared to February’s 65 mm (2.5 in), though both months experience rainfall on approximately 8 days. Interestingly, the humidity remains consistent at 75% for both months, creating a similarly moist environment. For more details on February weather specifically, you can check out Calheta weather in February.
December weather tends to be slightly warmer than in March, with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 21°C (70°F). In contrast, March sees a slightly lower average temperature of 15°C (60°F), with a minimum of 10°C (50°F) and a maximum of 22°C (71°F). Both months experience similar precipitation patterns, with December receiving 77 mm (3.0 in) and March slightly less at 65 mm (2.6 in), although both months have an average of 8 rainy days. Humidity levels are also comparable, with December at 75% and March just a bit higher at 78%. For a closer look at weather specifics in March, you can visit Calheta weather in March.
December and April showcase similar temperature ranges, with December experiencing slightly higher averages. In December, temperatures typically fluctuate from a minimum of 12°C (54°F) to a maximum of 21°C (70°F), while April has a slightly cooler range, with average temperatures from 12°C (55°F) to 20°C (68°F). Precipitation is more prevalent in December, amounting to 77 mm (3.0 in) over 8 days, compared to April's 56 mm (2.2 in) across 12 days, suggesting that April may see more sporadic rain despite the lesser overall volume. Humidity levels are similar, with December at 75% and April at 78%, indicating a consistently moist atmosphere during both months. For a more detailed look at April weather patterns, visit Calheta weather in April.
In December, the temperatures range from a minimum of 12°C (54°F) to a maximum of 21°C (70°F), with an average temperature of 17°C (63°F). This month sees about 77 mm (3.0 in) of precipitation over approximately 8 days, contributing to a relatively humid atmosphere with 75% humidity. In contrast, May offers slightly warmer conditions, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 23°C (73°F), while maintaining the same average of 17°C (63°F). However, May experiences significantly less precipitation, with only 21 mm (0.8 in) over just 4 days, alongside similar humidity levels at 77%. For a detailed look at the weather conditions in this month, you can refer to Calheta weather in May.
December and June present distinct weather contrasts. In December, temperatures range from a minimum of 12°C (54°F) to a maximum of 21°C (70°F), with an average of 17°C (63°F). The month sees about 77 mm (3.0 in) of precipitation spread across 8 days, resulting in a relatively humid atmosphere at 75%. In contrast, June offers slightly warmer temperatures, with a minimum of 15°C (60°F) and a maximum of 23°C (73°F), averaging 19°C (66°F). This month experiences significantly less rainfall, only 28 mm (1.1 in) over 3 days, while humidity increases slightly to 80%. For more details on June weather, you can check Calheta weather in June.
In December, temperatures range from a minimum of 12°C (54°F) to a maximum of 21°C (70°F), with an average of 17°C (63°F). The month sees quite a bit of precipitation, totaling 77 mm (3.0 in) over about 8 days, and the humidity levels hover around 75%. In contrast, July experiences warmer conditions with minimum temperatures of 18°C (65°F) and maximum temperatures reaching up to 26°C (79°F), averaging 20°C (69°F). Remarkably, July is much drier, receiving only 3 mm (0.1 in) of precipitation, typically spread over no rainy days, while the humidity increases slightly to 83%. This contrast highlights December as a wetter and cooler month, in stark comparison to the warm and dry conditions of July. For more details on July weather, check Calheta weather in July.
In December, the weather is comparatively cooler, with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 21°C (70°F). This month experiences more precipitation, totaling 77 mm (3.0 in) over 8 days, and has a humidity level of 75%. In contrast, August is significantly warmer, with temperatures averaging between 19°C (66°F) and 26°C (79°F), and almost no rainfall, only 3 mm (0.1 in), recorded over 0 days. The humidity in August also tends to be higher at 83%. For a detailed look at weather conditions during this summer month, visit Calheta weather in August.
When comparing the weather in December and September, December tends to be cooler, with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 21°C (70°F). In contrast, September enjoys milder conditions, with temperatures fluctuating between 19°C (66°F) and 25°C (77°F). Additionally, December experiences significantly higher precipitation, with 77 mm (3.0 in) over about 8 days, while September is much drier with only 12 mm (0.5 in) over 2 days. Humidity levels are relatively high in both months, but slightly higher in September at 81% compared to December's 75%. For more insights on the weather specifics in September, you can refer to Calheta weather in September.
The weather in December is generally cooler and wetter compared to October. In December, temperatures range from a minimum of 12°C (54°F) to a maximum of 21°C (70°F), with an average of 17°C (63°F) and about 77 mm (3.0 in) of precipitation spread over 8 days. In contrast, October boasts slightly warmer temperatures, with a minimum of 17°C (62°F) and a maximum of 25°C (77°F), and less rainfall totaling 42 mm (1.7 in) over 6 days. Humidity levels are also high in both months, but October's humidity is marginally higher at 80%, compared to December's 75%. For more details on October weather, you can check Calheta weather in October.
In comparing the weather between November and December, we see a slight dip in temperatures as December features an average of 17°C (63°F) compared to November's warmer average of 18°C (65°F). The maximum temperature in December reaches 21°C (70°F), which is lower than November's peak of 24°C (75°F). Precipitation also varies slightly, with December experiencing 77 mm (3.0 in) over 8 days, while November sees slightly less at 72 mm (2.8 in) over 10 days. Both months share the same humidity level of 75%, indicating that the air remains equally moist throughout. For more detailed information on November weather, you can visit Calheta weather in November.
December in Calheta brings a refreshing shift in weather, embracing cooler temperatures and increased humidity compared to the warmer months. As the holiday season approaches, the area experiences more frequent rain, with precipitation days on the rise, making it a contrasting yet cozy time of year. This month offers a unique blend of mild winter days and refreshing breezes, perfect for those seeking a tranquil escape. If you're curious about the overall climate patterns, be sure to check out Calheta Climate for more insights.