Last updated: March 17, 2025
Dublin in January is characterized by cool temperatures and frequent rainfall, making it an ideal time for cozy indoor activities. The average temperature hovers around 5°C (42°F), with highs reaching a maximum of 13°C (56°F) and dropping as low as -3°C (26°F) on particularly chilly nights. Rainfall is common, with 57 mm (2.2 in) expected over approximately 10 rainy days, contributing to a humidity level of 85% that envelopes the city in a misty embrace. Visitors can expect a blend of brisk air and occasional showers, perfect for experiencing the warm hospitality and vibrant culture unique to Dublin.
In Dublin, Ireland, January temperatures reveal a blend of winter chill and hints of early spring. The month typically starts with a minimum drop to -3°C (26°F), offering a crisp atmosphere that brightens with an average of 5°C (42°F) and peaks at a comfy 13°C (56°F). These trends show a slow transition; while the nights are still quite cold, days gradually warm up, setting the stage for February's slight rise in temperatures. This month will generally see milder averages and the promise of longer, brighter days ahead, creating a perfect backdrop for cozy gatherings and exploration of Dublin’s vibrant culture.
In January, Dublin experiences a relatively mild start to the year with an average precipitation of 57 mm (2.2 in) spread over 10 days. This sets the tone for a winter marked by sporadic rain, as the city transitions towards a wetter months ahead. As February and March arrive, the precipitation inches upward, reaching 80 mm and 81 mm, respectively, alongside an increase in rainy days. Notably, the spring months see a fluctuation in rainfall, with April dropping to 52 mm before peaking again in the late summer and autumn, particularly August's high of 95 mm. Overall, while January may be one of the drier months in the calendar year, it lays the foundation for the more substantial rainfall Dublin will encounter as the seasons progress.
In January, Dublin experiences a notable humidity level of 85%, setting the tone for the month ahead. This high humidity is characteristic of the winter season, as the city maintains a consistent moisture content in the air. As we transition into the following months, humidity levels fluctuate slightly, peaking at 87% in October before dipping to 84% in December. Interestingly, the humidity remains mostly stable with monthly averages hovering around 85-86% for much of the year, illustrating Dublin's maritime climate. This persistent humidity can contribute to the lush greenery the city is known for, making it a unique backdrop for both residents and visitors alike.
In January, Dublin sees a UV Index of 1, categorized as low exposure, which means you can enjoy up to 45 minutes outside without worrying about sunburn. This trend of low UV levels continues into February, maintaining the same index and burn time. However, as spring approaches, there’s a noticeable shift starting in March when the UV Index rises to 4, indicating moderate exposure and a reduced burn time of 30 minutes. By April, the index climbs further to 5, hinting that sunny days ahead require a bit more sun protection. The summer months bring a significant increase in UV intensity, with June and July reaching a peak of 8 in the very high category, where a short 15-minute exposure can lead to burns. As autumn arrives, the index gradually declines, allowing for safer outdoor activities, particularly in September, when it drops back to a moderate 5. This seasonal pattern highlights the importance of monitoring the UV Index as you plan your outdoor adventures year-round. For more detailed information, visit the Dublin UV Index.
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As January dawns in Dublin, the city experiences a modest 83 hours of sunshine, marking the beginning of the year with rather muted brightness. However, a noticeable shift occurs by February, where sunlight increases to 147 hours, signaling the gradual lengthening of days. March continues this trend, offering 191 hours as spring approaches, while April bursts forth with an impressive 311 hours, transforming the landscape as nature awakens. This upward trajectory peaks in May, with a delightful 391 hours of sunshine, before plateauing through the summer months of June and July, both holding steady at 385 hours. As the year progresses, the light begins to wane; August sees a slight decline to 339 hours, leading into a further decrease in September (294 hours), and a sharper drop in the fall months of October and November, bringing only 230 hours and 120 hours, respectively. By December, the year's sunshine culminates in a mere 95 hours, encapsulating the cyclical rhythm of light as Dublin dances through the seasons.
In Dublin, Ireland, January offers a 23% chance of sunny weather, marking it as one of the less bright months of the year. Trend analysis reveals that this likelihood is slightly higher than February and March, which have 21% and 22%, respectively. A noticeable improvement in sunshine can be observed as spring approaches, with April's chances soaring to 44%. This suggests that while January might feel quite dreary, the promise of sunnier days is just around the corner. As we move through the year, it's clear that Dublin's weather is both dynamic and increasingly inviting, especially as we transition into the sunnier months ahead.
In Dublin, Ireland, January marks the beginning of the year with a modest 8 hours of daylight, setting a subdued tone as winter holds sway. As February rolls in, the light begins to strengthen, bringing an additional hour of sunshine that signals the slow return of spring. By March, daylight extends to 11 hours, and nature starts to awaken. The ascent continues through April and May, with daylight peaking at a vibrant 15 hours, inviting outdoor exploration and social gatherings. June and July bask in the glory of 16 hours of daylight, perfect for enjoying the long summer evenings. However, as August arrives, the gradual decline begins, ushering in 14 hours. The autumn months then bring diminishing light, dropping to 10 hours in October and reverting to 8 hours by November, while December sees the year close with a mere 7 hours of daylight. This cyclical trend highlights the ever-changing rhythm of light in Dublin, reminding us of the seasonal shifts that shape the city's charm.
In January, Dublin greets the New Year with a gentle yet brisk average wind speed of 4.5 m/s (10 mph), setting a tone of crispness in the air. As winter unfolds, February sees a noticeable uptick in winds, reaching 6.0 m/s (13 mph), hinting at the encroaching spring. The winds then slightly ease back in March and April, fluctuating between 4.7 and 3.4 m/s (10 and 8 mph), before settling into a more moderate range throughout the summer months. July, with its mild winds at 2.7 m/s (6 mph), dances in stark contrast to the gustier preceding months, while August and September maintain a mostly calm demeanor. A return to briskness occurs in October and November, with average wind speeds around 4.9 m/s (11 mph), before concluding the year with December mirroring January’s breezy charm. This pattern underscores a seasonal rhythm, where winter’s chill gives way to spring breezes, followed by the calm of summer, and finally back to the refreshing gusts of autumn.
The weather in Dublin 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 Dublin and find detailed weather information for every month.
In January, the weather tends to be chilly, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F) and an average of 5°C (42°F). The month experiences approximately 57 mm (2.2 in) of precipitation over about 10 days, accompanied by high humidity levels of 85%.
In contrast, February sees a slight improvement in temperatures, with a minimum of -2°C (29°F) and a maximum of 14°C (58°F), resulting in an average of 6°C (43°F). However, it is wetter, as precipitation increases to about 80 mm (3.1 in) over 14 days, along with a marginally higher humidity of 86%. For a more detailed look at the climate, check out Dublin weather in February.
In January, the weather is generally colder with temperatures averaging around 5°C (42°F), while March shows a slight increase with an average temperature of 7°C (44°F). Although January has a maximum temperature of 13°C (56°F), March can reach up to 16°C (61°F). Precipitation levels are higher in March, with 81 mm (3.2 in) falling over 15 days, compared to January's 57 mm (2.2 in) over 10 days. Humidity remains relatively high in both months, with January at 85% and March slightly higher at 86%. For more detailed insights, visit Dublin weather in March.
In January, Dublin experiences cooler temperatures, with minimums reaching -3°C (26°F) and average highs around 13°C (56°F). The month sees about 57 mm (2.2 in) of precipitation over 10 days, contributing to a high humidity of 85%. In contrast, April brings slightly milder weather, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 19°C (66°F) and an average of 8°C (47°F). The precipitation is just a bit lower at 52 mm (2.0 in), although rain is expected on approximately 11 days. Notably, humidity remains consistent at 85% in both months, making early spring feel quite similar to winter in terms of moisture. For a detailed look at what to expect, check out Dublin weather in April.
In January, the weather is significantly colder, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F) and an average of 5°C (42°F). The month sees 57 mm (2.2 in) of precipitation spread over about 10 days, coupled with high humidity levels at 85%. In contrast, May brings warmer temperatures, with a minimum of 0°C (32°F), an average of 11°C (52°F), and a pleasant maximum of 21°C (71°F). Precipitation increases slightly to 72 mm (2.8 in) across approximately 14 days, while humidity remains relatively stable at 83%. For more detailed insights into May weather, check out Dublin weather in May.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F), resulting in an average temperature of 5°C (42°F). During this month, precipitation totals around 57 mm (2.2 in) and occurs on approximately 10 days, while humidity remains high at 85%. In contrast, June brings a noticeable warmth, with temperatures ranging from a low of 6°C (42°F) to a high of 24°C (75°F), averaging 14°C (57°F). Despite the increase in temperature, June experiences slightly higher precipitation levels at 75 mm (3.0 in) over 15 days, maintaining the same humidity level of 85%. For more detailed insights, you can explore Dublin weather in June.
In January, the weather is notably colder, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F). The month experiences an average temperature of 5°C (42°F) and receives about 57 mm (2.2 in) of precipitation over roughly 10 days, accompanied by high humidity levels at 85%. Conversely, July brings warmer temperatures, with minimums of 8°C (46°F) and maximums peaking at 25°C (77°F), resulting in a more pleasant average of 16°C (60°F). However, it is slightly wetter, accumulating around 80 mm (3.2 in) of rainfall over 14 days and maintaining a humidity level of 86%. For a deeper insight into Dublin's July climate, you can refer to Dublin weather in July.
When comparing the weather between January and August, a clear contrast emerges. January tends to be much colder, with average temperatures ranging from a brisk -3°C (26°F) to a maximum of 13°C (56°F). In contrast, August offers a milder climate, with temperatures typically fluctuating between 7°C (45°F) and a pleasant 23°C (73°F). Additionally, while both months experience high humidity levels of 85%, August sees significantly more precipitation, with 95 mm (3.8 in) falling over 16 days compared to January's 57 mm (2.2 in) over just 10 days. For more information on the weather specifics in August, you can check out Dublin weather in August.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F), and an average temperature of around 5°C (42°F). The month experiences about 57 mm (2.2 in) of precipitation over approximately 10 days, coupled with high humidity levels of 85%. In contrast, September brings milder conditions, with temperatures starting at a minimum of 3°C (38°F) and rising to a pleasant maximum of 22°C (72°F), averaging about 13°C (56°F). While September has slightly more precipitation at 73 mm (2.9 in) over around 14 days, the humidity remains similarly high at 86%. For more details on the weather during September, you can check Dublin weather in September.
January and October present distinct weather patterns, reflecting the transition from winter to autumn. In January, temperatures range from a chilly -3°C (26°F) at night to a milder 13°C (56°F) during the day, with an average of 5°C (42°F). The month sees about 57 mm (2.2 in) of precipitation over 10 days, accompanied by high humidity levels at 85%. In contrast, October offers a slightly warmer experience, with temperatures ranging from 1°C (35°F) at night to a comfortable 18°C (65°F) during the day, and an average of 11°C (51°F). Precipitation is higher in October, totaling 87 mm (3.4 in) across 14 days, along with a slight increase in humidity at 87%. For more insights into this month’s weather, you can check Dublin weather in October.
January and November exhibit noteworthy differences in weather patterns. January features cooler temperatures, with a minimum of -3°C (26°F) and an average of 5°C (42°F), while November is relatively milder, with temperatures ranging from a minimum of 0°C (32°F) to an average of 8°C (46°F). Additionally, November experiences more precipitation, averaging 97 mm (3.8 in) over 14 days, compared to January's 57 mm (2.2 in) across 10 days. Despite the slight increase in precipitation, both months have high humidity levels, hovering around 85% in January and 86% in November. For more details, you can check out the Dublin weather in November.
In comparing January and December weather, January tends to be slightly colder, with average temperatures ranging from -3°C (26°F) to a maximum of 13°C (56°F), while December sees a milder range of temperatures from -2°C (28°F) to 13°C (56°F). Precipitation levels are lower in January, with 57 mm (2.2 in) over about 10 days, compared to December's 94 mm (3.7 in) across 15 days. Humidity remains relatively high in both months, with January at 85% and December slightly lower at 84%. For more detailed information on December weather, you can visit Dublin weather in December.
January in Dublin brings a unique chill that sets it apart from other months, with temperatures often dipping to a brisk average of 5°C and even lower at times. This month tends to be one of the wettest, characterized by frequent rain showers across about 10 days, contributing to the city's high humidity levels of around 85%. While milder than peak winter months, January's unpredictable weather can be quite striking, making it essential for visitors to prepare for both cold and damp conditions. For more insights into the weather patterns throughout the year, visit Dublin Climate.