Last updated: March 17, 2025
April in Dun Laoghaire, Ireland presents a mix of mild temperatures and occasional showers. The maximum temperature reaches a pleasant 19°C (66°F), while the average sits at a cool 8°C (47°F), and nighttime can drop to a chilly -2°C (29°F). Expect 52 mm (2.0 in) of rainfall spread across 11 days, contributing to the region's lush greenery. With humidity levels at 85%, the air often feels brisk, adding a touch of freshness to the coastal charm of this vibrant town.
In April, Dun Laoghaire begins to shake off the chill of winter, welcoming a notable rise in temperatures. With a minimum around -2°C (29°F) and an average of 8°C (47°F), the town experiences a gentle warming trend. The maximum temperature can reach a pleasant 19°C (66°F), hinting at the impending warmth of spring. Compared to March’s chill, where lows dipped to -5°C (24°F), April brings a refreshing turn, encouraging outdoor activities and vibrant blooms. As days lengthen and sun begins to dominate, the milder weather transforms Dun Laoghaire into an inviting destination, perfect for leisurely strolls along the scenic waterfront.
April in Dun Laoghaire marks a transition as spring takes hold, bringing a modest average precipitation of 52 mm (2.0 in) over 11 days. This is a slight decrease compared to the wetter months of March and February, which saw 81 mm (3.2 in) and 80 mm (3.1 in) respectively. The shift towards drier days in April hints at the approaching warmth of summer, with precipitation gradually tapering off as the year progresses. As the landscape begins to bloom, April becomes a pleasant antechamber to the more humid and rainier months ahead, such as August and November, which are known for their higher averages exceeding 90 mm. The evolving weather patterns reflect a classic Irish spring, where just enough rain nurtures the lush greenery for which the region is famous.
April in Dun Laoghaire maintains the coastal charm with a humidity level of 85%, mirroring the gentle embrace of winter months. This slight dip from the 86% recorded in March reflects the subtle transition to spring, indicating a refreshing change in the air yet retaining the characteristic moisture that defines this picturesque seaside town. As the year progresses, humidity levels tend to fluctuate slightly, with May inching lower to 83%, suggesting a gradual shift towards drier conditions. Overall, April's humidity continues to showcase the region's maritime climate, ensuring a mild and invigorating atmosphere as nature awakens.
As spring unfolds in Dun Laoghaire, Ireland, the UV index in April rises to 5, indicating a moderate exposure category where sun protection becomes increasingly important, particularly if you plan to be outdoors for longer periods. With a burn time of just 30 minutes, it’s crucial to stay vigilant compared to the lower values seen in the earlier months of the year. This trend of increasing UV levels will continue into May with a significant jump to 7, marking the start of the high exposure category. The gradual ascent in UV index values from 1 in January to 5 in April signals the transition into sunnier days, making it essential for residents and visitors to stay informed about their sun safety practices. For more detailed information, check out the Dun Laoghaire UV Index.
UV Risk Categories
As April arrives in Dun Laoghaire, Ireland, the sun shines brightly with an impressive 311 hours of daylight, marking a significant leap from the previous months. This surge in sunshine is a delightful precursor to the slowly warming days of spring. Comparatively, it more than doubles the 191 hours recorded in March, revealing a promising trend toward longer, brighter days. Following closely, May continues this upward trajectory, showcasing 391 hours of sunlight, as the vibrant colors of nature begin to emerge. This pattern, with April acting as a pivotal turning point, not only brightens the landscape but also lifts spirits, inviting locals and visitors alike to enjoy the renewed warmth and energy that spring brings to this charming coastal town.
In Dun Laoghaire, April marks a notable shift in the likelihood of sunny weather, enjoying a 44% chance of sunshine—the highest of the year so far. This increase is quite striking when compared to the preceding months, as January, February, and March hover around a mere 21% to 23%. The arrival of spring seems to breathe new life into the skies, creating a promising backdrop for outdoor activities. However, the sunny days of April do not last; as summer approaches, the chances drop again in May to 31% and continue their decline into the warmer months. Thus, April stands as a delightful exception, inviting residents and visitors alike to embrace the emerging sunshine amidst the often-overcast Irish climate.
As April arrives in Dun Laoghaire, Ireland, the days continue to lengthen, offering 14 hours of daylight—an inviting shift from the winter months. The progression from just 8 hours in January to April's vibrant 14 hours reflects a significant surge in daylight, enhancing both outdoor activities and the general mood. Following the increasing trend of longer days, May promises even more sunshine, reaching 15 hours. This steady climb in daylight from spring through summer not only enriches the landscape but also sets the stage for a bright and lively season ahead, contrasting sharply with the shorter days of autumn and winter that follow.
April in Dun Laoghaire reveals a gentle shift in the coastal breeze, with an average wind speed of 3.4 m/s (8 mph), marking a noticeable dip compared to the brisk winter months. As spring unfolds, the winds soften, transitioning from the 6.0 m/s (13 mph) gusts of February and the 4.7 m/s (10 mph) in March, bringing a more tranquil atmosphere to the seaside town. This mild April wind hints at the approaching warmth of summer, where calmer breezes prevail, evidenced by the even lighter gusts in the following months. Dun Laoghaire's April air invites leisurely strolls by the harbor, as residents and visitors alike embrace the refreshing yet gentle touch of springtime winds.
The weather in Dun Laoghaire changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Dun Laoghaire and find detailed weather information for every month.
In comparing the weather between April and January, we can see some distinct differences. April typically enjoys milder temperatures, with a minimum of -2°C (29°F) and an average of 8°C (47°F), reaching a maximum of 19°C (66°F). In contrast, January’s temperatures range slightly cooler, with a minimum of -3°C (26°F) and an average of 5°C (42°F), peaking at 13°C (56°F). While both months experience similar humidity levels at 85%, April experiences slightly less precipitation at 52 mm (2.0 in) over 11 days, compared to January’s 57 mm (2.2 in) over 10 days. For a more detailed look at January's climate, visit Dun Laoghaire weather in January.
April and February exhibit notable differences in weather patterns, despite their similar minimum temperatures, both hitting -2°C (29°F). April tends to be milder overall, with an average temperature of 8°C (47°F) and a maximum reaching up to 19°C (66°F). In contrast, February has a cooler average of 6°C (43°F) and a max temperature of 14°C (58°F). Precipitation levels are higher in February, totaling 80 mm (3.1 in) over 14 days, compared to April's 52 mm (2.0 in) over 11 days, suggesting that February is wetter than April. Humidity levels are also slightly higher in February at 86%, compared to 85% in April. For more detailed information, you can visit Dun Laoghaire weather in February.
In comparing the weather between April and March, April presents a slight improvement in temperatures, with an average high of 19°C (66°F) compared to March's maximum of 16°C (61°F). Additionally, April experiences a higher average temperature of 8°C (47°F) versus March's 7°C (44°F). However, March has more rainfall, totaling 81 mm (3.2 in) over 15 days, whereas April has only 52 mm (2.0 in) across 11 days, suggesting drier conditions in April. Both months maintain high humidity levels, with April averaging 85% and March just slightly more at 86%. For a detailed look at March weather specifically, you can check Dun Laoghaire weather in March.
April and May present a transition in weather patterns, with May generally experiencing milder temperatures and slightly increased precipitation. In April, temperatures range from a chilly minimum of -2°C (29°F) to a maximum of 19°C (66°F), averaging around 8°C (47°F) and accompanied by 52 mm (2.0 in) of rain over 11 days, coupled with high humidity at 85%. In contrast, May sees a more moderate temperature range, with a minimum of 0°C (32°F) and a maximum of 21°C (71°F), leading to an average of 11°C (52°F). Additionally, May has increased rainfall, totaling 72 mm (2.8 in) over 14 days, with humidity slightly lower at 83%. For a closer look at specific weather conditions, visit Dun Laoghaire weather in May.
April and June exhibit notable differences in weather patterns. April features cooler temperatures, with a minimum of -2°C (29°F) and an average of 8°C (47°F), while June enjoys warmer temperatures, ranging from a minimum of 6°C (42°F) to an average of 14°C (57°F). Precipitation is more frequent in June, with 75 mm (3.0 in) falling over 15 days, compared to April's 52 mm (2.0 in) over 11 days. Both months share a high humidity level of 85%, but the overall climate in June is typically milder and more enjoyable. For more specific details on June weather, visit Dun Laoghaire weather in June.
April and July in Dun Laoghaire present quite different weather patterns. In April, temperatures range from a chilly minimum of -2°C (29°F) to a comfortable maximum of 19°C (66°F), with an average of 8°C (47°F). The month sees about 52 mm (2.0 in) of precipitation over approximately 11 days, coupled with high humidity at 85%. In contrast, July enjoys milder temperatures, with a minimum of 8°C (46°F), an average of 16°C (60°F), and a pleasant maximum of 25°C (77°F). However, it also experiences increased precipitation, with around 80 mm (3.2 in) over 14 days, and slightly higher humidity at 86%. For more details on July weather, you can visit Dun Laoghaire weather in July.
April and August present distinct contrasts in weather patterns. In April, temperatures range from a chilly minimum of -2°C (29°F) to a maximum of 19°C (66°F), with an average around 8°C (47°F). The month experiences around 52 mm (2.0 in) of precipitation over approximately 11 days and maintains a high humidity of 85%. Conversely, August offers milder conditions, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 23°C (73°F), averaging 15°C (60°F). This month sees increased precipitation at 95 mm (3.8 in) spread over approximately 16 days, while still holding onto the same humidity level of 85%. For a closer look at the specifics of August weather, you can check out this link: Dun Laoghaire weather in August.
April and September both offer mild weather, but they differ in temperature and precipitation. In April, temperatures range from a chilly minimum of -2°C (29°F) to a pleasant maximum of 19°C (66°F), contributing to an average of 8°C (47°F). The month sees about 52 mm (2.0 in) of rain over approximately 11 days, with humidity levels at 85%. In contrast, September experiences slightly warmer temperatures, with minimums around 3°C (38°F) and maximums reaching 22°C (72°F), resulting in an average of 13°C (56°F). This month has more precipitation at 73 mm (2.9 in) over 14 days and a marginally higher humidity of 86%. For more details on the weather in this month, you can check Dun Laoghaire weather in September.
April and October present distinct weather patterns. In April, temperatures range from a chilly minimum of -2°C (29°F) to a comfortable maximum of 19°C (66°F), with an average of 8°C (47°F). This month sees about 52 mm (2.0 in) of precipitation over 11 days, and humidity levels are around 85%. In contrast, October experiences slightly warmer temperatures, with a minimum of 1°C (35°F) and a maximum of 18°C (65°F), averaging 11°C (51°F). Precipitation increases to 87 mm (3.4 in) over 14 days, accompanied by a similar humidity level of 87%. For more specifics about the October climate, you can explore Dun Laoghaire weather in October.
April and November present contrasting yet comparable weather patterns. In April, temperatures range from a chilly minimum of -2°C (29°F) to a mild average of 8°C (47°F), peaking at a high of 19°C (66°F). The month sees around 52 mm (2.0 in) of precipitation spread over 11 days, with humidity levels averaging 85%. In contrast, November's temperatures begin at a minimum of 0°C (32°F) and have a similar average of 8°C (46°F), but the maximum reaches only 15°C (59°F). The month is wetter, with precipitation totaling 97 mm (3.8 in) over 14 days and slightly higher humidity at 86%. For more detailed insights into the November climate, you can refer to Dun Laoghaire weather in November.
April and December present distinct weather patterns, despite sharing similar minimum temperatures of around -2°C. April typically enjoys a milder average of 8°C and maximum temperatures reaching up to 19°C, while December's average temperature is cooler at 6°C, with a maximum of 13°C. Precipitation is more frequent in December, with 15 rainy days accumulating 94 mm, compared to April's 11 days and 52 mm. Humidity levels are quite comparable, with April slightly higher at 85% and December at 84%. For a more detailed overview of December weather in Dun Laoghaire, you can refer to Dun Laoghaire weather in December.
As April unfolds in Dun Laoghaire, the weather begins to show hints of warmth and vibrancy, a refreshing departure from the chill of winter months. The maximum temperatures reach a pleasant 19°C (66°F), adding a touch of spring’s promise, yet the air remains cool with an average of 8°C (47°F). It's a month of transition, where occasional showers, totaling 52 mm (2.0 in) over 11 days, add to the high humidity of 85%, reminding us that even as nature awakens, it holds onto the remnants of winter. For those interested in experiencing the nuances of Dun Laoghaire's weather throughout the year, there's much more to explore in the detailed breakdown found here: Dun Laoghaire Climate.