Last updated: March 17, 2025
January in Castlebar, Ireland, is characterized by cool temperatures that range from a minimum of -3°C (27°F) to a maximum of 14°C (57°F), with an average hovering around 6°C (43°F). This month experiences significant precipitation, with about 87 mm (3.4 in) falling over 13 days, contributing to a humid atmosphere at 88%. As winter deepens, Castlebar's landscape can be both drab and enchanting, making it a compelling destination for those embracing the stark beauty of Irish winters.
In Castlebar, Ireland, January temperatures present a chilly start to the year, with minimums dipping to -3°C (27°F) and an average of 6°C (43°F). The month showcases a range from 14°C (57°F) at its warmest, hinting at a gradual transition from frigid winter to milder days. Notably, temperatures remain stable in February, mirroring January's averages but edging slightly warmer at the maximum. As spring approaches in March and April, we witness a subtle rise, with March introducing cooler lows of -5°C (24°F), while April brings a refreshing maximum of 20°C (69°F). This upward trend continues into May, signaling the arrival of balmier weather, as the landscape shakes off the winter chill. Overall, January sets the tone for a gradual shift, paving the way for the more temperate months ahead.
In January, Castlebar experiences a steady start to the year with 87 mm (3.4 in) of precipitation spread across 13 days. This sets a precedent for the months that follow, with February witnessing a notable increase to 135 mm (5.3 in), marking it as the wettest month in the early part of the year. Interestingly, the precipitation pattern reveals fluctuations, with March and April both documenting lower totals, while the late spring and summer months tend to see rising amounts, peaking again in August at 133 mm (5.3 in). Overall, Castlebar's climate exhibits a rhythm, alternating between wetter months and drier spells, providing a unique character to the region's weather throughout the year.
In Castlebar, Ireland, January marks one of the year's peak humidity levels at an impressive 88%. This trend of high moisture continues into February, maintaining the same level before gradually easing to 87% in March. As spring approaches, humidity gently decreases, reaching 86% in April and 83% in both May and June. Interestingly, the summer months see a slight uptick, climbing to 85% in both July and August, before making a noteworthy return to 88% by September, as the region transitions toward autumn. The trend shifts dramatically in the months that follow, with humidity increasing steadily through the fall, peaking at 92% in November and remaining elevated at 89% in December. This rhythmic ebb and flow of humidity not only shapes Castlebar's climate but also characterizes its lush, verdant landscapes throughout the year.
In Castlebar, Ireland, the UV Index in January is notably low, rated at 1, which means you have a generous burn time of 45 minutes before needing to worry about sun exposure. This low index trend continues into February, emphasizing a safe window for outdoor activities without the need for significant sun protection. However, a noticeable increase occurs in March, where the UV Index rises to 4, marking the start of the moderate exposure category and signaling a more cautious approach to sun exposure as the burn time reduces to 30 minutes. As spring progresses into the summer months, the UV Index peaks in June and July at 8, classified as very high, with a sharp decline in burn time to just 15 minutes. This progression underscores the importance of being vigilant about sun safety as the year unfolds. To explore more about UV trends in Castlebar, visit Castlebar UV Index.
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In Castlebar, Ireland, January offers a modest 72 hours of sunshine, signaling the start of the year with a gentle embrace of light. As winter drifts into early spring, the days gradually lengthen, with February witnessing a noticeable increase to 136 hours. March continues this upward trend, boasting 185 hours of sun as anticipation for warmer days builds. By April, sunshine takes a cheerful leap to 316 hours, truly heralding the arrival of spring’s vibrancy. The peak of sunshine occurs in May, where residents enjoy an impressive 396 hours, the highest of the year. However, as summer envelops the region, there’s a slight decline, with June and July offering 380 and 382 hours, respectively. August sees a soft downturn, yielding 334 hours, while September and October usher in shorter days with 284 and 220 hours of sunshine. The year's end brings a significant drop in light, with November and December providing only 114 and 91 hours. This seasonal rhythm showcases Castlebar's delightful transition from the depths of winter into the warmth of summer, before retreating once more into the cozy embrace of winter's return.
In Castlebar, Ireland, January brings a 27% chance of sunny weather, offering a modest light compared to the seasons ahead. As winter wanes into spring, the likelihood of sunshine begins to rise, peaking significantly in April at 40% before settling back down as summer approaches. Interestingly, the following months display a decline, with June (16%) and July (23%) dipping into less sunny territory. This pattern illustrates a clear trend: while January might not be the sunniest month, it marks the onset of increasing daylight, setting the stage for a brighter spring. Thus, while the winter skies may appear overcast, hope for sunny days is just around the corner.
In Castlebar, Ireland, the daylight duration in January offers a modest 8 hours, marking the slow emergence from the dormant winter months. As February arrives, an additional hour of daylight hints at the approaching spring, setting a trend that continues into March with 11 hours of daylight — a refreshing transition. April ushers in a significant leap to 14 hours, showcasing not just longer days but a palpable lift in spirits. The daylight reaches its peak in June and July, offering an impressive 16 hours, inviting locals and visitors alike to bask in the summer sun. As August rolls in, the days begin to shorten, with 14 hours of daylight, followed by a gradual decline into autumn. By November, daylight dips back to 8 hours, reminiscent of January's early darkness, ultimately closing the year with December's 7 hours. This cyclical dance of light and shadow highlights the dynamic rhythm of Castlebar's seasons, granting each month its unique charm and allure.
In January, Castlebar experiences a gentle breeze with an average wind speed of 3.6 m/s (8 mph), just a notch below the calmness found in April and May. As the year progresses into February, the winds pick up noticeably, reaching 5.5 m/s (12 mph), marking the month as one of the windiest. Despite this uptick, wind speeds tend to ebb and flow throughout the spring, with March showing a moderate speed of 4.6 m/s (10 mph) before settling back to 3.5 m/s (8 mph) in April. Summer brings a notable decline, peaking in July at a soft 2.6 m/s (6 mph), offering a brief respite before the winds regain strength in the fall months, especially in October, where they reach 4.2 m/s (9 mph). By the time December rolls around, conditions ramp up slightly again, leaving Castlebar's wind patterns distinctive and ever-changing throughout the year.
The weather in Castlebar 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 Castlebar and find detailed weather information for every month.
In January, temperatures range from a minimum of -3°C (27°F) to a maximum of 14°C (57°F), with an average of 6°C (43°F). The month typically sees 87 mm (3.4 in) of precipitation over about 13 days and maintains a humidity level of 88%. By February, the weather remains quite similar, with temperatures still reaching a minimum of -3°C (26°F) and slightly higher maximums of 15°C (59°F), while the average remains the same at 6°C (43°F). However, February experiences increased precipitation of 135 mm (5.3 in) spread over 18 days, yet the humidity stays consistent at 88%. For more details, visit Castlebar weather in February.
In January, the weather is marked by cooler temperatures, with a minimum of -3°C (27°F) and an average of 6°C (43°F), reaching a maximum of 14°C (57°F). This month also sees a high degree of humidity at 88% and experiences about 87 mm (3.4 in) of precipitation over 13 days. In contrast, March offers slightly warmer conditions with a minimum of -5°C (24°F) and an average of 7°C (44°F), peaking at 17°C (62°F). Precipitation increases to 107 mm (4.2 in) spread across 16 days, while humidity remains comparable at 87%. For more specific insights, visit Castlebar weather in March.
January weather in Castlebar tends to be quite chilly, with average temperatures ranging from a minimum of -3°C (27°F) to a maximum of 14°C (57°F). The month sees significant precipitation, totaling 87 mm (3.4 in) over 13 days, paired with high humidity levels at 88%. In contrast, April brings a noticeable warming trend, with temperatures ranging from a minimum of -2°C (28°F) to a more pleasant maximum of 20°C (69°F), while the average temperature increases to 9°C (48°F). Precipitation decreases to 63 mm (2.5 in) over 11 days, and humidity slightly drops to 86%. For more detailed information, visit Castlebar weather in April.
January and May present stark contrasts in weather patterns. In January, temperatures range from a minimum of -3°C (27°F) to a maximum of 14°C (57°F), with an average of 6°C (43°F), making it one of the coldest months. The month sees considerable precipitation, totaling 87 mm (3.4 in) over 13 days, alongside high humidity levels of 88%. In contrast, May offers a more temperate climate, with temperatures fluctuating between -2°C (29°F) and a warm 25°C (77°F), averaging around 11°C (53°F). While May experiences slightly less rainfall at 74 mm (2.9 in) over 14 days, the humidity drops to 83%, contributing to a more pleasant environment. For more details on the climate during this month, refer to Castlebar weather in May.
Comparing the weather in January to June reveals a significant shift in temperature and conditions. In January, temperatures range from a chilly -3°C (27°F) at night to a mild 14°C (57°F) during the day, with an average of 6°C (43°F). This month experiences an average humidity of 88% and sees about 87 mm (3.4 in) of precipitation over 13 days. In contrast, June warms up considerably, with minimum temperatures of 5°C (41°F) and maximums reaching 28°C (84°F), averaging around 13°C (56°F). Despite similar total precipitation of 87 mm (3.4 in), June has a slightly higher number of rainy days at 17 and slightly lower humidity at 83%. This transition reflects the arrival of summer, bringing more warmth and extended daylight. For a closer look at June's climate specifics, check Castlebar weather in June.
In January, the weather is notably colder, with temperatures ranging from a chilly -3°C (27°F) to a maximum of 14°C (57°F) and an average of 6°C (43°F). The high humidity at 88% and 87 mm (3.4 in) of precipitation over 13 days contribute to a damp and brisk environment. Conversely, July brings much warmer conditions, with temperatures starting at a mild 7°C (44°F), peaking at 28°C (83°F), and averaging around 15°C (59°F). Although July experiences slightly more precipitation at 91 mm (3.6 in) over 15 days, the humidity drops to a comfortable 85%. For a detailed look at the weather in July, you can check out Castlebar weather in July.
When comparing the weather in January and August, there are notable differences in both temperature and precipitation patterns. January experiences colder temperatures, with a minimum of -3°C (27°F) and an average of 6°C (43°F), while August presents milder conditions, ranging from a minimum of 6°C (43°F) to an average of 15°C (59°F). In terms of precipitation, January sees about 87 mm (3.4 in) over 13 days, whereas August has more significant rainfall, totaling 133 mm (5.3 in) across 21 days. Interestingly, humidity levels are quite similar, with January at 88% and August slightly lower at 85%. For more information about the weather specifics in August, you can check Castlebar weather in August.
January and September present distinct weather patterns, reflecting the transition from winter to autumn. In January, temperatures are generally colder, with a minimum of -3°C (27°F) and an average of 6°C (43°F), while the maximum reaches 14°C (57°F). Precipitation during this month stands at 87 mm (3.4 in) over approximately 13 days, accompanied by high humidity levels of 88%.
In contrast, September enjoys milder temperatures, with a minimum of 2°C (35°F) and an average of 13°C (56°F), peaking at a maximum of 25°C (77°F). Although precipitation increases slightly to 92 mm (3.6 in) over 17 days, the humidity remains consistent at 88%. For a closer look at the September weather specifics, you can visit Castlebar weather in September.
January and October present distinct contrasts in weather conditions. In January, temperatures range from a chilly minimum of -3°C (27°F) to a mild maximum of 14°C (57°F), with an average of 6°C (43°F). The month sees considerable precipitation, totaling 87 mm (3.4 in) over about 13 days, accompanied by high humidity of 88%. In contrast, October boasts milder temperatures, with a minimum of 0°C (33°F) and a maximum of 20°C (68°F), averaging around 10°C (51°F). However, it experiences even more rainfall, accumulating 127 mm (5.0 in) across 20 days, along with slightly higher humidity at 91%. For more insights into the October climate, check out Castlebar weather in October.
In January, temperatures range from a minimum of -3°C (27°F) to a maximum of 14°C (57°F), with an average temperature of 6°C (43°F). The month experiences approximately 87 mm (3.4 in) of precipitation over 13 days, accompanied by a relatively high humidity level of 88%. In contrast, November boasts slightly milder temperatures, with a minimum of -2°C (29°F) and a maximum of 15°C (59°F), averaging around 8°C (46°F). However, it experiences more precipitation, totaling 110 mm (4.3 in) spread across 17 days, and humidity levels are even higher at 92%. For more detailed insights, you can check Castlebar weather in November.
In comparing the weather between January and December, both months experience similar minimum temperatures of -3°C (27°F), yet January tends to be slightly warmer on average with an average of 6°C (43°F) compared to December's 7°C (44°F). January has a maximum temperature of 14°C (57°F), which is slightly higher than December's maximum of 13°C (55°F). However, December is notably wetter, receiving 121 mm (4.8 in) of precipitation over 19 days, while January experiences less precipitation at 87 mm (3.4 in) over 13 days. Humidity levels are fairly consistent, with December at 89% and January at 88%. For more details, you can check Castlebar weather in December.
In January, Castlebar experiences a distinct chill that sets it apart from the milder months of the year. With temperatures dipping to a minimum of -3°C and average highs reaching only 14°C, this month heralds the coldest days, often characterized by high humidity at 88% and considerable precipitation. The rain falls on about 13 days, contributing to a rather damp atmosphere that can make outdoor activities a challenge. This wintry weather adds a chilly charm to Castlebar, making it a fascinating time for those who appreciate the unique beauty of the Irish landscape in winter. For more on what to expect throughout the year, visit Castlebar Climate.