January Weather in Tallaght, Ireland

Last updated: March 17, 2025

In January, Tallaght, Ireland experiences a cool and damp climate, with maximum temperatures reaching 13°C (56°F) and an average of 5°C (42°F). The month can bring chilly nights, with temperatures dipping to a minimum of -3°C (26°F). Residents and visitors alike should prepare for the likelihood of rain, as 57 mm (2.2 in) of precipitation falls over approximately 10 days, contributing to a notably high humidity level of 85%. This blend of wet and cool conditions defines January in Tallaght, making it essential to dress warmly and carry an umbrella.

January Temperature in Tallaght

In Tallaght, Ireland, January brings an icy chill, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F). The average temperature hovers around 5°C (42°F), reflecting the crispness typical of winter in this region. As the month progresses, there's a slight upward trend, with February's average creeping up to 6°C (43°F) and maximums reaching 14°C (58°F). The growing light and warmth herald the transition towards spring, with March showing even more promise as temperatures gradually ascend, hinting at a welcome relief from the winter's grip. Overall, January serves as a chilly reminder of the season, while also setting the stage for the gradual warming trend to follow.

January Weather in Tallaght: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Tallaght, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424344475257605956514643
Data source: Temperature data for Tallaght generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Tallaght

January in Tallaght, Ireland, sets the stage for a typically moist winter, with an average precipitation of 57 mm (2.2 in) spread over 10 rainy days. While January starts the year with relatively modest rainfall compared to the following months, it foreshadows a steady increase as the season progresses. February and March see a noticeable uptick, with rainfall amounts escalating to 80 mm (3.1 in) and 81 mm (3.2 in), respectively, often marked by more frequent rain. This trend continues through the year, peaking in November with a hefty 97 mm (3.8 in) over 14 days. The fluctuating precipitation not only enriches the landscape but also hints at the transition from winter to spring, seamlessly weaving through the vibrant tapestry of Ireland’s weather.

January Precipitation Trends in Tallaght

The chart displays monthly precipitation patterns in Tallaght, with values for each month alongside January's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec578081527275809573879794
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Tallaght

In January, Tallaght experiences a notable average humidity of 85%, setting the tone for a year characterized by consistently high moisture levels. As the months progress, humidity fluctuates slightly, peaking at 87% in October. The late winter and early spring months (February to April) maintain a steady 86%, creating a persistent chill in the air. Moving into the summer, the humidity levels stabilize around the mid-80s before climbing back to 86% in September and November, suggesting an atmosphere that remains rich in moisture throughout the year. This trend highlights Tallaght’s reputation for its damp climate, with only slight variations that keep it comfortably humid, even as winter tightens its grip.

January Average Humidity in Tallaght

This chart illustrates the average monthly humidity levels in Tallaght, with January's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how January's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%85%83%85%86%85%86%87%87%84%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Tallaght

In January, Tallaght, Ireland experiences a low UV Index of 1, suggesting minimal risk for sunburn with a burn time of 45 minutes. As the year progresses, the UV Index gradually rises; February remains at 2, continuing to indicate low exposure risk. By March, the index reaches 4, marking a shift to moderate exposure, and this trend continues into April with a UV Index of 5. The arrival of sunnier months sees a significant spike, with May and June experiencing high and very high indices of 7 and 8 respectively, reducing burn times to as little as 15 minutes. August witnesses a slight decrease, returning to a high rating. As autumn approaches, the UV Index drops again, stabilizing at moderate levels through September and October before lowering back to 1 during the winter months of November and December. This cyclical pattern highlights the importance of adjusting sun protection measures throughout the year. For more insights on sun exposure, visit Tallaght UV Index.

Maximum UV Index Levels in Tallaght for January

The chart shows the monthly maximum UV Index (UVI) for Tallaght in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Tallaght January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Tallaght

In Tallaght, Ireland, the arrival of January brings a modest 83 hours of sunshine, a gentle prelude to the sun-drenched days ahead. As winter fades and spring approaches, the hours of sunlight steadily increase, with February enjoying 147 hours and March offering 191 hours. The transformation becomes even more pronounced in April, where sunshine rockets to 311 hours, heralding the vibrant bloom of spring. The sunny trend peaks in May with an impressive 391 hours, before leveling off in the summer months of June and July, each boasting 385 hours. With August still holding onto warmth at 339 hours, the days gradually shorten, ushering in the cooler months. By September, the tally dips to 294 hours and continues to fall, culminating in a quiet December with just 95 hours of sunlight. This yearly cycle of sunshine not only underscores the seasonal shifts but also paints a vivid picture of Ireland's evolving landscape throughout the year.

Monthly Sunshine Duration in Tallaght: January Highlighted

The January sunshine duration represents the total number of hours Tallaght experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec83h147h191h311h391h385h385h339h294h230h120h95h
Data source: Tallaght January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tallaght During January

In Tallaght, Ireland, January offers a modest 23% chance of sunny weather, making it one of the less bright months of the year. As we move into spring, there's a noticeable increase in sunlit days, peaking in April with a 44% probability. This trend highlights a gradual shift toward sunnier skies, with February and March gently trailing behind at 21% and 22%, respectively. Interestingly, while May and June hold their own with 31% and 24% chances, the sunshine becomes somewhat sporadic in the summer months. Overall, January may not shine as brightly, but it sets the stage for a blossoming spring that promises more sunny days ahead.

Percentage of Sunny Days in January in Tallaght

The chart illustrates the percentage of sunny days in Tallaght throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Tallaght experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%21%22%44%31%24%30%23%20%19%26%23%
Data source: Tallaght January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tallaght in January

In January, Tallaght experiences about 8 hours of daylight, gradually increasing as the month progresses towards spring. By February, daylight extends to 9 hours, signaling the approach of longer, sunnier days. This trend continues through March with 11 hours, and April brings even more welcome light with 14 hours. The peak arrives in June and July, where daylight stretches to a remarkable 16 hours, creating ample time for outdoor activities and enjoyment of nature. As summer gives way to autumn, daylight begins to wane, dropping to 14 hours in August and tapering off to 12 hours in September. The cycle concludes with October at 10 hours and returns to 8 hours by November, eventually reaching its lowest at 7 hours in December, as Tallaght settles into the darker months of winter.

Average Daylight Hours in Tallaght for January

The chart illustrates the variation in daylight duration in Tallaght throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 7m9h 49m11h 54m14h 2m15h 54m16h 53m16h 22m14h 40m12h 37m10h 30m8h 36m7h 34m
Data source: Tallaght daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Tallaght

In Tallaght, Ireland, January ushers in the year with a gentle breeze, featuring an average wind speed of 4.5 m/s (10 mph). This mild wind sets the tone for the month, making it a perfect time for invigorating walks amidst the crisp winter air. As we transition to February, the winds pick up slightly, reaching 6.0 m/s (13 mph), hinting at the increasing energy of approaching spring. Interestingly, March sees a subtle dip back to 4.7 m/s (10 mph), establishing a serene rhythm that continues into early spring. By April, the winds calm to 3.4 m/s (8 mph), suggesting a shift towards the warmer months ahead. Overall, January's gentle breezes are a prelude to the variable winds of the ensuing months, which cycle through increasing and decreasing patterns, with the gentlest winds generally appearing in the height of summer, while late autumn brings back a livelier breeze once more.

Average January Wind Speed in Tallaght

The chart displays monthly wind speed patterns in Tallaght, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.5 m/s6.04.73.44.03.72.73.63.44.94.84.9
Data source: Tallaght January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Tallaght Compares to Other Months

The weather in Tallaght 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 Tallaght and find detailed weather information for every month.

January and February exhibit similar chilly conditions, with January showing slightly lower temperatures. In January, the minimum temperature dips to -3°C (26°F) and averages around 5°C (42°F), while February sees a milder minimum of -2°C (29°F) and a slightly higher average of 6°C (43°F). Both months experience considerable humidity, with January at 85% and February at 86%. Notably, February tends to be wetter, with precipitation increasing to 80 mm (3.1 in) over 14 days compared to January's 57 mm (2.2 in) over 10 days. For more detailed insights on February weather, check out Tallaght weather in February.

January and March both feature chilly temperatures, but March tends to be slightly milder overall. January records a minimum temperature of -3°C (26°F) and a maximum of 13°C (56°F), while March's temperatures range from -5°C (24°F) to a more pleasant 16°C (61°F). Precipitation also increases 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 levels hover close, with January at 85% and March at 86%. For more details about March weather, visit Tallaght weather in March.

In January, the weather is typically colder, with average temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F), accompanied by 57 mm (2.2 in) of precipitation over about 10 days. In contrast, April sees a slight increase in temperatures, with averages between -2°C (29°F) and 19°C (66°F), and a similar amount of precipitation at 52 mm (2.0 in) spread across 11 days. Both months share a high humidity level of 85%, but April generally offers milder conditions that hint at the arrival of spring. For more detailed information, you can check Tallaght weather in April.

In comparing the weather of January and May, a noticeable shift in temperature and conditions emerges. January experiences cooler temperatures, with an average of just 5°C (42°F) and minimums dropping to -3°C (26°F), making it feel quite brisk. The month also sees significant precipitation, averaging 57 mm (2.2 in) over about 10 days and high humidity levels at 85%. In contrast, May offers a more pleasant climate with average temperatures rising to 11°C (52°F) and maximums reaching up to 21°C (71°F). While precipitation increases slightly to 72 mm (2.8 in) over 14 days, the humidity remains relatively stable at 83%. For a closer look at May's weather specifics, visit Tallaght weather in May.

January and June exhibit notable differences in weather patterns. In January, temperatures range from a chilly -3°C (26°F) at night to a mild 13°C (56°F) during the day, with an average of 5°C (42°F). The month experiences around 57 mm (2.2 in) of precipitation over approximately 10 days, accompanied by high humidity levels reaching 85%. In contrast, June brings warmer conditions, with temperatures ranging from a minimum of 6°C (42°F) to a pleasant maximum of 24°C (75°F) and an average of 14°C (57°F). Although June sees slightly higher precipitation at 75 mm (3.0 in) over about 15 days, the air feels considerably warmer and the longer daylight hours allow for much more outdoor activity. For a closer look at the specific weather conditions in June, you can check out Tallaght weather in June.

January and July present a notable contrast in weather patterns. January, with its chilly temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F), is characterized by an average temperature of 5°C (42°F). The month receives about 57 mm (2.2 in) of precipitation over 10 days, coupled with high humidity at 85%, creating a cold and damp atmosphere. In stark contrast, July enjoys milder weather, featuring average temperatures of 16°C (60°F) that range from 8°C (46°F) to a warm 25°C (77°F). Although July experiences a higher total precipitation of 80 mm (3.2 in) across 14 days, the warmth and slightly elevated humidity at 86% create a distinctly different climate. For more details about July weather in this region, check out Tallaght weather in July.

January and August in Tallaght present distinctly contrasting weather patterns. In January, temperatures range from a chilly -3°C (26°F) to a mild 13°C (56°F), with an average of 5°C (42°F). The month experiences 57 mm (2.2 in) of precipitation across about 10 days, accompanied by high humidity levels of 85%. In contrast, August enjoys warmer temperatures, with a minimum of 7°C (45°F) and a maximum of 23°C (73°F), averaging 15°C (60°F). The month sees more rainfall, totaling 95 mm (3.8 in) over 16 days, while maintaining the same humidity of 85%. For more details on the weather conditions, you can visit Tallaght weather in August.

January and September present contrasting weather patterns. In January, temperatures range from a chilly -3°C (26°F) at night to a mild 13°C (56°F) during the day, while September enjoys more moderate conditions, with nighttime lows of 3°C (38°F) and daytime highs reaching 22°C (72°F). January experiences about 57 mm (2.2 in) of rainfall over 10 days, whereas September sees slightly more precipitation at 73 mm (2.9 in) spread across 14 days. Additionally, both months have high humidity levels, with January at 85% and September slightly higher at 86%. For a closer look at the weather specifics, visit Tallaght weather in September.

In January, temperatures in Tallaght typically range from a chilly -3°C (26°F) at night to a mild 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 spread over 10 days, accompanied by high humidity levels of 85%. In contrast, October experiences slightly milder conditions, with minimum temperatures around 1°C (35°F) and maximums peaking at 18°C (65°F), averaging 11°C (51°F). This month receives more precipitation, totaling 87 mm (3.4 in) over 14 days, and the humidity remains consistent at 87%. For a detailed look at October weather patterns, check out Tallaght weather in October.

When comparing the weather in January and November, January tends to be colder overall, with average temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F). In contrast, November offers milder temperatures, with a minimum of 0°C (32°F) and a maximum of 15°C (59°F). However, November sees higher precipitation, with 97 mm (3.8 in) over 14 days, compared to January’s 57 mm (2.2 in) over 10 days. Both months experience high humidity, hovering around 85% in January and slightly higher at 86% in November. For a more detailed look at November weather specifically, you can check this link: Tallaght weather in November.

January and December share similar temperature ranges, with January seeing a minimum of -3°C (26°F) and an average of 5°C (42°F), while December presents slightly milder temperatures with a minimum of -2°C (28°F) and an average of 6°C (44°F). However, December experiences significantly more precipitation, totaling 94 mm (3.7 in) over 15 days, compared to January's 57 mm (2.2 in) over 10 days. Humidity levels are quite comparable, with January at 85% and December slightly lower at 84%. For more detailed insights, you can check out Tallaght weather in December.

Compare Tallaght's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Tallaght

As January unfolds in Tallaght, the weather takes a notable turn compared to the milder months of the year. With maximum temperatures hovering around 13°C and minimums dipping to -3°C, the chill of winter encapsulates the landscape. The average temperature settles at a brisk 5°C, highlighting the season's stark contrast to the warmer summer months. Additionally, January brings a noticeable increase in humidity at 85%, paired with ample precipitation, noted by 10 days of rain totaling 57 mm. These elements combine to create a cold, damp environment typical for this time of year, setting the stage for the gradual shift towards spring. For more insight, explore the full details at Tallaght Climate.