Last updated: March 17, 2025
January in Dundalk, Ireland is characterized by cool temperatures and a notable amount of precipitation. The maximum temperature hovers around 14°C (57°F), while the average falls to a brisk 5°C (42°F), dipping to a chilly minimum of -5°C (23°F). Rain is a regular feature of the month, with an average of 54 mm (2.1 in) of rainfall spread across about 10 days. The atmosphere is notably humid, with levels reaching around 85%, contributing to a fresh, invigorating winter ambiance typical of this region.
In Dundalk, Ireland, January presents a chilly start to the year, with temperatures ranging from a biting min of -5°C (23°F) to a comparatively mild max of 14°C (57°F). The average temperature hovers around 5°C (42°F), indicating that while cold snaps are possible, the climate remains relatively moderate for winter. This trend of gradually rising averages continues into February, where temperatures see only a slight increase, creating a sense of slow but steady warming. As winter transitions into spring, the temperatures progressively rise, with March bringing an average of 7°C (44°F) and a maximum of 16°C (61°F). The incremental gains in warmth suggest that as the month advances, Dundalk begins to shed its winter chill, paving the way for the more temperate and vibrant conditions of spring.
In January, Dundalk experiences an average precipitation of 54 mm (2.1 in) over 10 rainy days, marking the beginning of the year with a relatively moderate wetness. This sets the stage for a sharp increase in rainfall by February, which sees precipitation soar to 85 mm (3.4 in) across 15 days. As the months progress, precipitation fluctuates, peaking in August with a significant 114 mm (4.5 in), coinciding with 18 rainy days, making it the wettest month. The spring and summer months remain consistently damp, with March to July recording between 66 mm (2.6 in) and 80 mm (3.1 in), while the transition into autumn sees a gradual decline, leading back to milder conditions in January of the following year. This annual pattern reflects a typical Irish climate, characterized by its frequent rainfall and a tendency towards wetter months as summer approaches.
In Dundalk, Ireland, January ushers in the year with a consistent humidity level of 85%, setting the tone for the month ahead. As winter transitions into spring, a slight increase occurs, with February and March reaching 86% humidity. This trend of elevated moisture persists, peaking in October at 87%, as the cool, damp climate settles in for autumn. Overall, the humidity levels in Dundalk remain relatively stable throughout the year, oscillating around the mid-80s, with only subtle fluctuations that reflect the region's characteristic maritime climate. As the seasons change, the balmy feel of January humidity is just the beginning of a year filled with consistent moisture.
In January, Dundalk, Ireland experiences a low UV Index of 1, suggesting that sun exposure poses minimal risk, with a burn time of approximately 45 minutes. As we transition into February, the UV Index remains low at 2, maintaining the same burn time, indicating that winter sun exposure should still be approached with caution but without significant concern. With the arrival of March, the UV Index rises to 4, marking the beginning of moderate exposure which reduces burn time to 30 minutes. This upward trend continues into April, where the Index increases to 5. As spring unfolds, residents can anticipate heightened UV intensity, especially as summer approaches, with notable peaks in June and July when the Index reaches 8—the highest for the year—with a drastic decrease in burn time to just 15 minutes during this very high exposure period. Overall, while January offers a safe level of sun exposure, the gradual rise in UV Index throughout early spring signals the importance of monitoring UV levels as the year progresses. For more detailed insights on UV trends, visit Dundalk UV Index.
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January in Dundalk, Ireland, may start off with only 79 hours of sunshine, but this seemingly modest beginning sets the stage for a remarkable transformation as the year unfolds. By February, days begin to grow longer, delivering 144 hours of sunlight, while March brings a further increase to 190 hours, heralding the arrival of spring. The real explosion of daylight occurs in April, with a stunning 303 hours as the landscape awakens in vibrant hues. As we move into the summer months, sunshine peaks in May at 383 hours and remains generous throughout June and July, offering 375 and 374 hours, respectively—perfect for outdoor adventures. However, as autumn approaches, the light diminishes gradually, with 283 hours in September, and further declines to 110 hours by November, highlighting the contrast between the sun-soaked beginnings of the year and the more subdued winter months. Ultimately, January’s timid sunshine serves as a gentle reminder of the bright days yet to come in Dundalk.
In Dundalk, Ireland, the likelihood of sunny weather in January stands at a moderate 29%, marking it as one of the brighter months in the often overcast winter season. As we compare January to subsequent months, we notice a decline in sunshine likelihood, with February seeing only a 20% chance and falling even lower through March. However, the onset of spring brings a welcome increase in sunshine, with April jumping to 39%, suggesting that while January may offer a reasonable chance of sun, it is the following months that ignite the promise of clearer skies. As we move toward late spring and summer, the trends exhibit a more inconsistent pattern, demonstrating that despite January's relatively higher likelihood of sun, Dundalk's sunny days truly evolve with the changing seasons.
In Dundalk, Ireland, January brings about 8 hours of daylight, marking the slow awakening from the depths of winter. As the month transitions into February, the light begins to increase, offering 9 hours that hint at the approaching spring. March sees a surge, bringing 11 hours, while April delights with 14 hours, as longer days foster a sense of renewal. The peak of daylight arrives in June, boasting an impressive 17 hours, ideal for enjoying the outdoors. However, as summer yields to fall, a gradual decline begins, with daylight dwindling to 14 hours in August, eventually settling back to 8 hours by November. The cycle of daylight in Dundalk beautifully reflects the changing seasons, inviting residents and visitors alike to celebrate both the long, sunlit days of summer and the cozy, shorter days of winter.
In Dundalk, Ireland, January ushers in the year with a gentle average wind speed of 3.9 m/s (9 mph), setting a calmer tone compared to the bracing breezes of the subsequent months. As spring approaches, winds pick up slightly in February at 5.3 m/s (12 mph), before settling down again in April to a mellow 3.2 m/s (7 mph). The trend reveals a notable dip during July when the winds calm to a whisper at just 2.5 m/s (6 mph), only to gradually strengthen again as autumn unfolds, culminating at 4.4 m/s (10 mph) by November and December. This gentle yet dynamic shifting of winds characterizes the seasonal transition in Dundalk, balancing tranquil moments with invigorating gusts throughout the year.
The weather in Dundalk changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Dundalk and find detailed weather information for every month.
In January, temperatures in Dundalk range from a minimum of -5°C (23°F) to a maximum of 14°C (57°F), with an average of 5°C (42°F). The month experiences about 54 mm (2.1 in) of precipitation over approximately 10 days, and humidity levels hover around 85%. In contrast, February sees slightly milder temperatures, with a minimum of -4°C (25°F) and an average of 6°C (43°F), while still reaching a maximum of 14°C (58°F). However, February is wetter, with 85 mm (3.4 in) of precipitation spread over 15 days, and humidity rises slightly to 86%. For more detailed information about February weather in Dundalk, visit Dundalk weather in February.
January and March exhibit notable differences in weather patterns. In January, temperatures range from a minimum of -5°C (23°F) to a maximum of 14°C (57°F), with an average of 5°C (42°F) and 54 mm (2.1 in) of precipitation over about 10 days at a humidity level of 85%. In contrast, March sees slightly warmer conditions, with temperatures fluctuating between -4°C (25°F) and a high of 16°C (61°F), averaging 7°C (44°F). It experiences more precipitation at 80 mm (3.1 in) spread across 16 days, accompanied by a marginally higher humidity of 86%. For more detailed information, you can check Dundalk weather in March.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 14°C (57°F), averaging around 5°C (42°F). This month experiences higher humidity at 85%, along with 54 mm (2.1 in) of precipitation over about 10 days. In contrast, April brings a more moderate climate, with temperatures that range from a minimum of -2°C (28°F) to a more pleasant maximum of 20°C (68°F), averaging 8°C (47°F). While April sees slightly less precipitation at 45 mm (1.8 in) across 11 days, the humidity remains consistent at 85%, making the transition into spring feel refreshing. For more details, check out Dundalk weather in April.
In comparing the weather between January and May, January experiences colder temperatures, with a minimum of -5°C (23°F) and an average of 5°C (42°F), while May sees milder conditions, with a minimum of -1°C (30°F) and an average of 11°C (53°F). Additionally, the maximum temperatures in January reach 14°C (57°F), whereas May can see temperatures rise to a pleasant 23°C (73°F). Precipitation levels are slightly higher in May, totaling 66 mm (2.6 in) over 12 days, compared to January's 54 mm (2.1 in) across 10 days. Humidity remains fairly high in both months, with January at 85% and May at 83%. For more detailed insights into May weather in the region, check Dundalk weather in May.
In January, Dundalk experiences cold temperatures, with a minimum of -5°C (23°F) and an average of 5°C (42°F), reaching a maximum of 14°C (57°F). The month is characterized by significant humidity at 85% and about 54 mm (2.1 in) of precipitation over approximately 10 days. In contrast, June brings much warmer weather, with temperatures ranging from a minimum of 4°C (40°F) to a pleasant average of 14°C (58°F) and a high of 28°C (82°F). While June has slightly higher precipitation at 76 mm (3.0 in) across about 14 days, the warmth and vibrant atmosphere make it feel quite different from the chill of January. For more detailed insights, check out Dundalk weather in June.
In January, the weather is notably cold, with temperatures ranging from a chilling minimum of -5°C (23°F) to a maximum of 14°C (57°F), accompanied by high humidity levels of 85%. This month experiences about 54 mm (2.1 in) of precipitation over approximately 10 days, resulting in a damp and brisk atmosphere. In contrast, July presents a much warmer climate, with average temperatures between a minimum of 7°C (45°F) and a maximum of 28°C (82°F). Although the humidity remains high at 86%, July sees slightly increased precipitation of 74 mm (2.9 in) across 13 days, contributing to a more humid summer feel. For more detailed insights, check out Dundalk weather in July.
In comparing the weather between January and August, January showcases a colder climate with average temperatures ranging from -5°C to a maximum of 14°C, compared to the warmer August averages of 7°C to 23°C. While both months share the same humidity level of 85%, August experiences nearly double the precipitation, with 114 mm over 18 days, compared to January's 54 mm over 10 days. For more details on the conditions in August, check out Dundalk weather in August.
January and September present contrasting weather patterns in terms of temperature and precipitation. January typically brings colder conditions, with minimums of -5°C (23°F) and average temperatures around 5°C (42°F), while September enjoys milder temperatures, averaging around 13°C (56°F) with maximums reaching up to 22°C (72°F). Despite January’s lower temperature range, it has fewer precipitation days (10) compared to September, which experiences rain on roughly 13 days and a higher precipitation amount of 74 mm (2.9 in). Humidity levels remain similar in both months, hovering around 85% in January and slightly higher at 86% in September. For more detailed insights into September's weather, check Dundalk weather in September.
In January, the weather is notably colder, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 14°C (57°F) and an average of 5°C (42°F). The month experiences about 54 mm (2.1 in) of precipitation spread over 10 days, coupled with high humidity levels at 85%. In contrast, October sees milder conditions, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 19°C (66°F) and an average of 10°C (51°F). The month is wetter, with 80 mm (3.1 in) of precipitation over 14 days and slightly increased humidity at 87%. For more detailed information, you can check Dundalk weather in October.
In January, the weather is generally colder, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 14°C (57°F) and an average of about 5°C (42°F). This month also experiences lower precipitation at 54 mm (2.1 in) over approximately 10 days, along with high humidity levels of 85%. In contrast, November ushers in slightly milder temperatures, with a minimum of -3°C (27°F), an average of 8°C (46°F), and a maximum of 15°C (59°F). However, November sees more rain, with a total of 84 mm (3.3 in) spread over 15 days and slightly higher humidity at 86%. For more on November weather specifics, you can check Dundalk weather in November.
In January, temperatures range from a minimum of -5°C (23°F) to a maximum of 14°C (57°F), with an average of 5°C (42°F). The month sees about 54 mm (2.1 in) of precipitation spread over 10 days, accompanied by a relatively high humidity of 85%. In contrast, December experiences slightly milder temperatures, with a minimum of -3°C (27°F) and a maximum of 13°C (56°F), averaging 6°C (43°F). However, it is wetter, receiving 89 mm (3.5 in) of precipitation over 13 days, with a humidity level of 84%. For more details on December weather, you can visit Dundalk weather in December.
January in Dundalk often contrasts sharply with other months, bringing a blend of crisp, chilly days and elevated humidity levels that can make the cold feel even more pronounced. While temperatures typically hover around a cooler average, the occasional milder day offers a respite from the winter chill, alongside frequent rainfall that contributes to the month’s overall damp atmosphere. This combination of weather patterns emphasizes January's role as a transitional month, setting the stage for the gradual arrival of spring. For further insights into Dundalk's overall weather trends, check out Dundalk Climate.