Last updated: March 17, 2025
In December, Donegal, Ireland experiences a chilly climate characterized by a maximum temperature reaching 13°C (55°F) and an average of 6°C (43°F). As winter settles in, temperatures can dip to a minimum of -2°C (28°F), making it essential for visitors to bundle up. With precipitation accumulating to 131 mm (5.2 in) over the course of approximately 21 days, be prepared for frequent rain showers. The humidity level remains high at 84%, contributing to the crisp, moist air typical of this coastal gem. Ideal for cozy firesides and festive gatherings, Donegal offers a serene winter landscape worth exploring.
In Donegal, Ireland, December temperatures showcase a transition into the heart of winter, with minimums dipping to -2°C (28°F) and averages settling around 6°C (43°F). As the month progresses, the mercury rarely climbs above 13°C (55°F), reflecting a chill that blankets the landscape. Notably, December's temperatures tend to hover slightly above those of November, indicating a gradual cooling trend as the year winds down. This time of year brings a cozy atmosphere, inviting locals and visitors alike to enjoy the enchanting winter scenery while donning warm layers to embrace the brisk air.
In Donegal, December marks a significant transition in precipitation patterns as the year draws to a close. With an average rainfall of 131 mm (5.2 in) spread across 21 days, December holds a prominent spot among the wetter months, showcasing a trend of increasing moisture as the season shifts toward winter. Compared to November's 116 mm and 20 days of precipitation, December not only brings more rain but also a modest uptick in wet days, hinting at the persistent dampness characteristic of Irish weather during this time. This consistent pattern of rainfall indicates that Donegal embraces the chilly month with a lush, green landscape, as nature prepares for the fresh start of spring.
As December settles over Donegal, Ireland, the humidity maintains a consistent level at 84%, mirroring the figures from both January and April. This month falls within a pattern of relatively high humidity values, especially notable during the summer months of July and August when levels peak at 86% and 87%. Transitioning into autumn, humidity gradually climbs, reaching 88% in November before slightly retreating in December. Generally, the air in Donegal remains moist year-round, creating an unmistakable atmosphere that is quintessentially Irish, yet December holds a special balance—comfortably high but not overwhelming, setting the stage for the cozy winter months ahead.
In December, Donegal experiences a low UV Index of 1, meaning sun exposure poses minimal risk, with a generous burn time of 45 minutes for most skin types. This follows a gradual decline in UV intensity over the months, peaking at 8 in both June and July when the sun's strength is at its highest. As the year progresses from bright May days with a high of 7 to the gentler rays of winter, residents can enjoy the outdoor beauty of Donegal without the urgent need for sun protection. As such, December serves as a gentle reminder of the changing seasons and the importance of being mindful of UV exposure throughout the year. For more details on the UV index trends, visit Donegal UV Index.
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In December, Donegal experiences a gentle decline in sunshine, with approximately 75 hours of bright days, a modest drop following the vibrant months that precede it. While this marks one of the lowest points in the annual sunshine pattern, the overall trend throughout the year showcases a delightful evolution from 67 hours in January to a high of 385 hours in May. The sunny peaks of summer, particularly in July and August, create a striking contrast to the waning light of late autumn and winter. As light softens in December, the landscape transforms, inviting locals and visitors alike to appreciate the beauty of Donegal's serene winter charm.
When it comes to the likelihood of sunny weather in December in Donegal, Ireland, the odds are not in your favor, as there's only a 10% chance of sunshine. This marks a continuing trend of diminishing daylight and clearer skies as the year winds down. Compared to earlier months like April (35%) and May (29%), December offers the lowest chance of sun, which reflects the region's typical winter climate. As the chilly winds set in and the days grow shorter, it’s clear that visitors looking for a sunny escape in Donegal during December might want to embrace the cozy charm of indoor activities instead.
In Donegal, Ireland, the daylight duration follows a predictable yet captivating rhythm throughout the year. Starting with a modest 7 hours in December, the days gradually lengthen, reaching a peak of 17 hours in June, where the sun bathes the landscape in light. By summer's end in August, the daylight begins to wane, settling back to 14 hours. As autumn descends, daylight further diminishes, culminating again at 7 hours in December, creating a seamless cycle that reflects the shifting seasons. This dance of light not only marks the passage of time but also shapes the unique charm of Donegal's natural beauty across the year.
As December settles in Donegal, the winds begin to pick up slightly, with an average speed of 4.7 m/s (11 mph), reflecting a consistent pattern that peaks during the winter months. This slight increase from November's 4.9 m/s (11 mph) signifies that while the winds are robust, they are not at their most fierce. The transition from the calmer summer months—where July's gentle 2.5 m/s (5 mph) stands out—builds a narrative of gradual escalation into the heart of winter. In comparison to the softer breezes of the summer, December's winds hint at the approaching storms, underscoring the unique character of Donegal’s coastal climate as it dances between tranquility and turbulence. As the year draws to a close, the whisper of the wind carries with it the promise of the wild Irish winter.
The weather in Donegal 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 Donegal and find detailed weather information for every month.
In December, temperatures range from a minimum of -2°C (28°F) to a maximum of 13°C (55°F), with an average of 6°C (43°F). The month is relatively wet, experiencing 131 mm (5.2 in) of precipitation over 21 days, while humidity remains high at 84%. In contrast, January sees slightly cooler conditions, with temperatures dropping to a minimum of -5°C (24°F) and an average of 5°C (42°F), though the maximum remains steady at 13°C (56°F). Precipitation decreases to 95 mm (3.7 in) over 16 days, and humidity remains unchanged at 84%. For more detailed information, check out Donegal weather in January.
December and February exhibit somewhat similar weather patterns, though distinct differences are evident. In December, temperatures range from a chilly -2°C (28°F) to a comfortable 13°C (55°F), with an average of 6°C (43°F). The month experiences considerable precipitation, totaling 131 mm (5.2 in) spread over 21 days, with humidity consistently high at 84%. In contrast, February tends to be slightly colder, with minimum temperatures dropping to -5°C (23°F) and highs reaching up to 14°C (58°F), averaging around 5°C (42°F). Interestingly, February has a higher precipitation total of 142 mm (5.6 in) over fewer days—17 in total—while maintaining the same humidity level of 84%. For a more detailed look at the February weather, you can visit Donegal weather in February.
In December, temperatures range from a chilly minimum of -2°C (28°F) to a maximum of 13°C (55°F), with an average temperature of 6°C (43°F). The month experiences higher precipitation at 131 mm (5.2 in) over 21 days, accompanied by high humidity at 84%. In contrast, March sees slightly colder nights with a minimum of -5°C (24°F) but can warm up to 17°C (62°F) during the day, maintaining the same average of 6°C (43°F). Precipitation is similar, measuring 128 mm (5.0 in) over 18 days, with a marginally lower humidity level of 83%. For more detailed insights, you can check Donegal weather in March.
When comparing the weather in December and April, there are notable differences in temperature and precipitation patterns. December experiences cooler average temperatures, ranging from a minimum of -2°C (28°F) to a maximum of 13°C (55°F), while April sees a rise, with averages between -2°C (28°F) and 20°C (69°F). This shift marks the transition into spring, as evidenced by the increased average temperature in April (8°C or 47°F) compared to December (6°C or 43°F). Additionally, April receives significantly less precipitation, measuring 65 mm (2.6 in) over 14 days, compared to December's 131 mm (5.2 in) across 21 days. Despite both months sharing the same humidity level of 84%, the overall feel is quite different, making April a more pleasant time for outdoor activities. For more details, you can check Donegal weather in April.
December and May present remarkably different weather experiences. In December, temperatures typically range from a chilly -2°C (28°F) to a mild 13°C (55°F), with an average of around 6°C (43°F). The month is marked by considerable precipitation, totaling 131 mm (5.2 in) over approximately 21 days, accompanied by high humidity at 84%. In contrast, May offers a much warmer climate, with temperatures ranging from a low of -1°C (30°F) to a high of 25°C (77°F) and averaging 11°C (52°F). Precipitation decreases to 85 mm (3.4 in) spread across about 14 days, while humidity remains slightly lower at 83%. For more details on May weather, you can visit Donegal weather in May.
In December, temperatures in Donegal range from a chilly -2°C (28°F) to a mild 13°C (55°F), with an average of 6°C (43°F). The month is characterized by frequent precipitation, totaling 131 mm (5.2 in) over approximately 21 days, and high humidity levels at 84%. In contrast, June sees a warmer climate, with temperatures starting at a minimum of 4°C (40°F) and rising to a comfortable maximum of 27°C (82°F), averaging 13°C (56°F). Precipitation in June is slightly lower at 114 mm (4.5 in) and occurs over 17 days, while humidity remains comparable at 83%. For more detailed information, check out Donegal weather in June.
In December, the weather is significantly colder, with temperatures ranging from a chilling -2°C (28°F) at night to a mild 13°C (55°F) during the day. The month sees considerable precipitation, averaging 131 mm (5.2 in) spread across 21 days, contributing to a high humidity level of 84%. In contrast, July offers a much warmer and more pleasant climate, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 27°C (81°F) and an average of 15°C (58°F). Although July experiences slightly less precipitation at 108 mm (4.2 in) over 17 days, the humidity remains relatively high at 86%. For a more detailed look at the summer weather, you can check Donegal weather in July.
In December, the weather is significantly colder, with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 13°C (55°F), and an average of 6°C (43°F). The month experiences considerable precipitation, totaling 131 mm (5.2 in) over 21 days, with humidity levels at 84%. In contrast, August boasts milder temperatures, with a minimum of 5°C (41°F) and a maximum of 23°C (73°F), averaging around 14°C (58°F). This month is also wetter, with 164 mm (6.5 in) of rain spread over 22 days and slightly higher humidity at 86%. For more detailed information, you can check Donegal weather in August.
In comparing the weather of December and September, it’s clear that December is noticeably colder, with average temperatures ranging from a brisk -2°C (28°F) to a moderate 13°C (55°F), compared to September’s more comfortable range of 2°C (36°F) to 24°C (76°F). Additionally, December experiences slightly more precipitation at 131 mm (5.2 in) over 21 days, while September records 112 mm (4.4 in) across 18 days. The humidity levels are also relatively high in both months, sitting at 84% for December and 87% for September, contributing to a damp feel in both cases. For a detailed look at September's weather, check out Donegal weather in September.
In comparing the weather of December and October, we observe distinct differences in temperature and precipitation patterns. December tends to be colder, with average temperatures ranging from a low of -2°C (28°F) to a high of 13°C (55°F), whereas October enjoys milder conditions with temperatures between 0°C (32°F) and 19°C (67°F). Both months experience significant rainfall, but December's precipitation is slightly less, totaling 131 mm (5.2 in) compared to October's 139 mm (5.5 in). Interestingly, while both months see a similar number of rainy days—21 in December and 20 in October—October's humidity is marginally higher at 87%, compared to December's 84%. For more insights on October's weather, you can visit Donegal weather in October.
Comparing the weather patterns of November and December reveals notable differences. December tends to be slightly warmer on average, with a minimum temperature of -2°C (28°F) and a maximum of 13°C (55°F), compared to November's minimum of -4°C (25°F) and maximum of 15°C (58°F). However, December experiences more precipitation, totaling 131 mm (5.2 in) over 21 days, while November records 116 mm (4.6 in) across 20 days. Humidity levels are also higher in December, averaging 84% versus November's 88%. For a more detailed look at November's weather, you can visit Donegal weather in November.
December in Donegal presents a unique contrast to the milder months, as the temperatures dip significantly, ushering in a chill that can reach below freezing. With an average of 6°C, this month often features frequent precipitation over 21 days, resulting in the highest rainfall of the year at 131 mm. Humidity levels rise to 84%, creating a drizzly, damp atmosphere that defines the season. While the landscape transforms with a dramatic wintery feel, those who embrace Donegal's December weather will find a serene beauty in its rugged charm. For a deeper insight into the region's climate patterns, visit Donegal Climate.