Last updated: March 17, 2025
January in Portarlington, Ireland is characterized by a cool climate, where temperatures range from a minimum of -5°C (23°F) to a maximum of 14°C (57°F), with an average of 6°C (43°F). This month witnesses approximately 55 mm (2.1 in) of precipitation spread over 10 days, contributing to the region's lush, green landscape. High humidity levels of around 85% create a crisp, invigorating atmosphere, making January a unique time to experience the charm of this quaint Irish town.
In Portarlington, Ireland, January marks the beginning of the year with chilly temperatures, where the minimum can drop as low as -5°C (23°F), allowing frosty mornings to greet residents. The month tends to hover around an average of 6°C (43°F), with daytime highs reaching a milder 14°C (57°F). This pattern sets the tone for the coldest months, characterized by their gradual warming trend. As the seasons transition into February and March, temperatures see slight increases, yet January remains the coldest month, displaying its wintry charm. The gradual rise in evening lows and average temperatures foreshadows the upcoming spring, illustrating how January, while brisk, is part of a broader progression towards more temperate conditions in the coming months.
January in Portarlington sees a moderate precipitation amount of 55 mm (2.1 in) spread over approximately 10 days, marking the month as relatively dry compared to the subsequent winter months. As the year transitions into February and March, rainfall increases notably, with February recording 86 mm (3.4 in) and March following closely at 82 mm (3.2 in). This rising trend hints at the typical Irish weather pattern where early spring ushers in more frequent rainfall. As spring progresses into summer, rainfall levels remain fairly consistent, with notable peaks in August at 99 mm (3.9 in) over 17 days, suggesting that while January starts the year on a quieter note, precipitation soon becomes a defining characteristic of Portarlington's climate.
In January, Portarlington greets the New Year with a notable humidity level of 85%, setting the tone for a damp winter month. As the season progresses into February and March, humidity rises slightly to 86%, creating a persistent moist atmosphere characteristic of the early year. This trend continues through the spring, with humidity staying anchored around 85-86% until May, where it dips momentarily to 83%. The consistent humidity returns in the warmer months, peaking again in October at 87%, suggesting that every month except May maintains a rather humid environment, with notable 86% levels from mid-year through fall. Overall, the humidity in Portarlington exhibits a steady rhythm, intertwined with seasonal shifts that define the region's climate narrative.
In January, Portarlington experiences a low UV Index of 1, with a safe burn time of 45 minutes. As the month progresses into February, the UV Index slightly increases to 2, but the exposure remains low, maintaining the same burn time. With the arrival of March, we see a shift to a moderate UV Index of 4, reducing the safe exposure time to 30 minutes. This trend continues into April, where the Index reaches 5, still within moderate levels. As summer approaches, the UV Index climbs significantly in May and June, peaking at 8 during both months, which indicates a very high level of UV exposure and short burn times of just 15 minutes. July maintains this intensity before tapering off in August, where it drops back to 7. The cooler months of September to December see a return to more manageable levels, with UV exposure moving back down to low and moderate ranges, highlighted by 1 in both January and December, ensuring ample time for safe sun enjoyment. For a comprehensive view of UV levels throughout the year, visit Portarlington UV Index.
UV Risk Categories
Amid the chilly embrace of winter, January in Portarlington graces us with 79 hours of sunshine, setting the stage for a gradual increase in brightness. As February arrives, the sun begins to reclaim its power with 135 hours of daylight, hinting at the promise of spring. By the time March rolls in, sunshine soars to 173 hours, invigorating the landscape and lifting spirits. The trend continues into April and May, where the hours jump remarkably to 280 and 369, respectively, marking a vibrant transition as days grow longer and warmer. Although June holds steady at 363 hours, the sunshine-filled days pave the way for a radiant July with the pinnacle of 365 hours — a perfect zenith for summer. Even as the year progresses into August and beyond, sunshine remains generous, with 308 hours lighting up the late summer months. However, as autumn sets in, the hours of sunlight slowly decline, dipping to 114 hours in November, and closing out the year with a more subdued 89 hours in December, reminding us of nature's cycle as we prepare for another bright beginning.
In January, Portarlington, Ireland, enjoys a 29% chance of sunny weather, setting the tone for a winter month that feels surprisingly bright compared to what follows. As we move into February and March, the likelihood of sunshine diminishes significantly, dropping to 20% and 18% respectively. However, April brings a refreshing change with a notable increase to 40%, marking the transition into spring and showcasing the region’s capacity for sunnier days as the year progresses. Overall, January offers a decent start, but the weather truly starts to brighten in the months that follow, highlighting a seasonal trend that Irish weather enthusiasts eagerly anticipate.
In Portarlington, Ireland, the daylight duration begins at a modest 8 hours in January, slowly escalating as the days grow longer towards the spring. By February, daylight increases to 9 hours, setting the stage for a dramatic rise, peaking at 16 hours during the summer months of June and July. As summer wanes, the daylight gradually recedes, with August witnessing a decline to 14 hours and tapering off to 10 hours by October. The trend continues into the winter months, where December offers the least daylight at just 7 hours. This seasonal progression not only marks the passage of time but also reflects the changing rhythms of daily life in Portarlington throughout the year.
In January, Portarlington experiences a gentle embrace of the Atlantic winds, with an average wind speed of 3.8 m/s (8 mph), setting a tranquil tone for the month. As the season transitions into February, gusts pick up noticeably to 5.2 m/s (12 mph), hinting at the strengthening breeze typical of late winter. This trend continues into March, where winds moderate slightly to 4.1 m/s (9 mph) before dipping again in April to 3.1 m/s (7 mph), reflecting the calmer aura of early spring. With the advent of summer, the winds remain relatively mild, peaking in October at 4.2 m/s (9 mph), only to soften again as the year closes with December's 4.3 m/s (10 mph). Overall, January's soft winds are part of a dynamic pattern, oscillating between calm and brisk throughout the year, creating a varied yet consistently moderate climate for residents and visitors alike.
The weather in Portarlington 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 Portarlington and find detailed weather information for every month.
January and February present fairly similar temperatures, with February showing slightly warmer conditions, averaging 6°C (44°F) compared to January's 6°C (43°F). However, February exhibits a higher maximum temperature of 16°C (61°F) and a less severe minimum of -3°C (27°F). In terms of precipitation, February sees a significant increase, receiving 86 mm (3.4 in) over 15 days compared to January's 55 mm (2.1 in) across 10 days. Humidity remains relatively stable, with both months hovering around 85-86%. For a closer look at February weather specifics, you can check Portarlington weather in February.
January and March weather in Portarlington show some notable differences. In January, temperatures typically range from a minimum of -5°C (23°F) to a maximum of 14°C (57°F), with an average of 6°C (43°F). The month experiences around 55 mm (2.1 in) of precipitation over 10 days, accompanied by a high humidity level of 85%. In contrast, March has a slightly broader temperature range, with a minimum of -7°C (21°F) and a maximum of 17°C (64°F), averaging 7°C (45°F). Precipitation increases to 82 mm (3.2 in) spread over 16 days, while humidity rises marginally to 86%. For more detailed insights into March weather, you can check Portarlington weather in March.
January and April offer distinctly different weather experiences. In January, temperatures range from a chilling minimum of -5°C (23°F) to a more moderate maximum of 14°C (57°F), accompanied by 55 mm (2.1 in) of precipitation over 10 days, and high humidity at 85%. Conversely, April sees a notable increase in warmth with average temperatures stretching from -4°C (26°F) to a pleasant maximum of 21°C (71°F), while precipitation slightly decreases to 48 mm (1.9 in) over the same number of days, maintaining the same humidity levels. For a more detailed look into the April climate, you can check Portarlington weather in April.
In January, the weather tends to be quite chilly, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 14°C (57°F). The average temperature hovers around 6°C (43°F), accompanied by high humidity at 85% and 55 mm (2.1 in) of precipitation over approximately 10 days. In contrast, May brings a significant warming trend, with temperatures varying from a minimum of -1°C (30°F) to a pleasant maximum of 24°C (76°F) and an average of 12°C (53°F). Although May has slightly higher precipitation at 72 mm (2.8 in) over 12 days, the humidity remains relatively stable at 83%. For more details, you can check Portarlington weather in May.
In January, Portarlington experiences colder temperatures, with a minimum of -5°C (23°F) and an average around 6°C (43°F), while June sees much milder conditions with a minimum of 4°C (40°F) and average temperatures reaching 14°C (58°F). The maximum temperatures in January peak at 14°C (57°F), contrasting sharply with June's highs of 28°C (83°F). While both months share similar humidity levels of 85%, June tends to be wetter, with precipitation recorded on 14 days and a total of 70 mm (2.7 in), compared to January's 55 mm (2.1 in) over 10 days. For a more detailed overview of June conditions, check out Portarlington weather in June.
In January, temperatures in Portarlington range from a chilly -5°C (23°F) to a mild 14°C (57°F), with an average of 6°C (43°F). The month tends to be quite damp, featuring 55 mm (2.1 in) of precipitation over about 10 days, and the humidity hovers around a high 85%. In stark contrast, July brings a blend of warmth and humidity, with temperatures ranging from a comfortable 6°C (43°F) at night to a warm 29°C (84°F) during the day, averaging 16°C (61°F). Although July is slightly wetter, with 72 mm (2.8 in) of rainfall over 12 days, the humidity stays similarly high at 86%. For a detailed look at July's weather, you can explore Portarlington weather in July.
In January, temperatures range from a chilly -5°C (23°F) to a mild 14°C (57°F), with an average of 6°C (43°F). This month typically experiences around 55 mm (2.1 in) of precipitation over 10 days, coupled with high humidity at 85%. In contrast, August features a warmer climate, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 24°C (75°F) and an average of 15°C (60°F). However, it sees an increase in precipitation to 99 mm (3.9 in) over 17 days, maintaining the same humidity level of 85%. For a more detailed look at how the weather unfolds in August, you can check Portarlington weather in August.
January and September present contrasting weather conditions in terms of temperature and precipitation. In January, temperatures range from a chilly -5°C (23°F) at night to a mild 14°C (57°F) during the day, with an average of around 6°C (43°F). The month experiences approximately 55 mm (2.1 in) of precipitation over 10 days, accompanied by high humidity levels at 85%. Conversely, September offers a much warmer climate, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 26°C (80°F), averaging at 14°C (57°F). Precipitation increases slightly to 71 mm (2.8 in) over 12 days, with humidity sitting at 86%. For more details on September weather, visit Portarlington weather in September.
In January, the weather is characterized by colder temperatures, with minima dropping to -5°C (23°F) and an average of 6°C (43°F). Precipitation is moderate at 55 mm (2.1 in) over about 10 days, while humidity remains high at 85%. In contrast, October experiences milder conditions, with a minimum of -2°C (29°F) and an average temperature of 11°C (51°F), peaking at a comfortable 20°C (68°F). Precipitation increases to 83 mm (3.3 in) over 15 days, accompanied by a slightly higher humidity of 87%. To learn more about the specific weather patterns during this month, visit Portarlington weather in October.
In January, temperatures in Portarlington typically range from a minimum of -5°C (23°F) to a maximum of 14°C (57°F), with an average of 6°C (43°F). The month sees around 55 mm (2.1 in) of precipitation over 10 days and maintains a high humidity of 85%. In contrast, November offers slightly milder temperatures, with a minimum of -3°C (28°F) and a maximum of 16°C (60°F), averaging 8°C (46°F). However, it experiences higher precipitation levels at 83 mm (3.3 in) over 14 days, with humidity remaining at a similar 86%. For more detailed information, you can check Portarlington weather in November.
In comparing the weather of January and December, both months exhibit quite similar temperature ranges, with January showing average temperatures slightly lower than December. January has a minimum temperature of -5°C (23°F) and an average of 6°C (43°F), whereas December starts at a colder minimum of -6°C (21°F) but has a marginally higher average of 7°C (44°F). Notably, December experiences more precipitation, totaling 93 mm (3.7 in) over 15 days, compared to January's 55 mm (2.1 in) over 10 days. The humidity levels are relatively close, with January at 85% and December at 84%. For a more detailed look at December weather, check out Portarlington weather in December.
As January unfolds in Portarlington, the weather takes on a distinctly colder character compared to other months. With average temperatures lingering around a brisk 6°C, residents and visitors alike experience chillier days, marked by frequent precipitation that adds to the damp atmosphere. The high humidity levels, typically reaching 85%, amplify the crispness of the air, making layering essential for outdoor activities. While the maximum temperatures may peak at 14°C, the possibility of plunging to a chilly -5°C reminds everyone that winter is firmly in grip. For those interested in a detailed perspective on the yearly climate trends, check out Portarlington Climate.