Last updated: March 17, 2025
Experience the charm of Portmarnock, Ireland in May, where temperatures typically range from a pleasant maximum of 22°C (72°F) to a cozy minimum of 1°C (34°F), averaging 12°C (53°F). As you stroll along the scenic coastline, expect approximately 62 mm (2.4 in) of rainfall spread over 12 days, contributing to the lush, green landscapes that define this coastal gem. Coupled with an 83% humidity level, the refreshing air offers a crisp yet invigorating ambiance, perfect for both outdoor adventures and tranquil beach walks. Whether you're exploring the local trails or enjoying the vibrant atmosphere, May in Portmarnock promises a delightful experience.
In May, Portmarnock, Ireland, welcomes the onset of warmer temperatures, making it one of the most pleasant months of the year. With minimums rising to 1°C (34°F) and averages reaching 12°C (53°F), locals and visitors alike can finally enjoy the outdoors without the chill of previous months. The maximum temperature can soar to 22°C (72°F), bringing a delightful warmth that beckons for leisurely strolls along the picturesque coastline. As the landscape blooms and days grow longer, May signifies a charming transition into summer, inviting everyone to embrace the beauty of this vibrant location.
In May, Portmarnock experiences a moderate rainfall of 62 mm (2.4 in), a slight increase from April's 44 mm, leading to an average of about 12 days of precipitation. This trend reflects the typical transition into late spring, as the region gears up for summer's wetter months. May's rainfall is consistent with the patterns observed earlier in the year, where January to April fluctuated between 44 mm and 73 mm, but marks a noticeable shift towards the higher amounts seen in later summer, particularly in August, which often sees the highest precipitation. As flowers bloom and greenery thrives under the gentle showers, locals and visitors alike can appreciate the lush landscapes that emerge, even as the days grow longer and warmer.
As May arrives in Portmarnock, Ireland, the humidity gently lowers to 83%, heralding the onset of summer while still maintaining the area's characteristic dampness. This slight dip from the months preceding it suggests a trend of milder conditions, with January through April consistently hovering around 85-86%. Interestingly, this transitional month serves as a prelude to the summer months, where humidity levels rise again to settle at 85-86% from June through August. Overall, while the spring months maintain robust humidity levels, May stands out as a brief, refreshing respite before the summer heat sets in, embodying the unique charm of Ireland's coastal climate.
As spring unfolds into May in Portmarnock, the UV Index climbs to a high level of 7, indicating that sun protection becomes increasingly important. This shift marks a noticeable change from the moderate levels of previous months, where burn times decreased from 45 minutes in January and February to just 25 minutes by May. With the approach of summer, it's crucial to stay vigilant, as June and July will see the UV Index peak at 8, classified as very high. This trend highlights the importance of adapting outdoor activities and sun safety practices as the year progresses. For more detailed information on UV levels throughout the year, check out Portmarnock UV Index.
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In Portmarnock, Ireland, May stands out as a radiant gem, boasting an impressive 385 hours of sunshine that marks the peak of the year. As winter fades, the sunshine gradually increases from a mere 80 hours in January to a promising 190 hours by March, setting the stage for spring's full bloom. April sees a significant leap with 308 hours, but it's May that truly shines bright, outpacing the subsequent months like June and July, which hover around 379 and 377 hours, respectively. This delightful trend of increased sunlight continues into the summer, yet as autumn approaches, the hours gradually dip, illustrating a picturesque cycle from the crispness of winter to the embracing warmth of late spring. It's a clear reminder of the enchanting beauty of seasonal transitions in this coastal haven.
In Portmarnock, Ireland, the likelihood of sunny weather experiences a notable uptick as spring progresses into May. With a 33% chance of sunshine, May stands out as a promising month for brighter skies, especially when compared to the cooler months of January through March, which hover around 21% to 27%. This increase continues from April's 44%, suggesting that as the season warms, residents and visitors alike can anticipate more opportunities to enjoy the outdoors. However, the following months, particularly June and July, see a decline in sunny days, settling back to about 23% to 30%. Thus, while May presents a sweet spot for sun seekers, it serves as a reminder of the capricious nature of Irish weather, where sunlit days remain cherished but unpredictable.
In Portmarnock, Ireland, the transition from winter to summer showcases a remarkable increase in daylight duration. Beginning with a modest 8 hours in January, the days gradually lengthen, reaching 15 hours by May. This upward trend continues into June and July, where daylight peaks at 16 hours, offering the perfect backdrop for outdoor adventures. As summer wanes, the hours of daylight begin to recede, dropping to 14 hours in August and gently tapering off to 12 hours in September. By October, the last remnants of summer light are reduced to 10 hours, before returning to the shorter days of winter, with just 8 hours in November. This rhythmic cycle of daylight not only highlights the beauty of changing seasons but also invites residents and visitors to embrace the vibrant summer months.
In May, Portmarnock experiences a gentle average wind speed of 3.9 m/s (9 mph), reflecting a slight increase from the calmer conditions of April. This moderate breeze provides an ideal backdrop for enjoying the scenic coastline, as it invites outdoor activities without overwhelming gusts. As the year progresses, the winds tend to fluctuate, with summer months like July registering the least wind at just 2.8 m/s (6 mph), suggesting a delightful calmness perfect for leisurely beach days. Conversely, as autumn approaches, speeds pick up again, hinting at the more vigorous winds that return in October and November. Overall, May’s breezy yet pleasant conditions serve as a transitional bridge to the vibrant summer months, enhancing the charm of Portmarnock’s coastal allure.
The weather in Portmarnock changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Portmarnock and find detailed weather information for every month.
When comparing the weather in May and January, there are notable differences in temperature and overall conditions. In May, temperatures range from a chilly 1°C (34°F) to a pleasant maximum of 22°C (72°F), averaging around 12°C (53°F), while January sees a colder range with minimums dropping to -3°C (27°F) and a maximum of 14°C (58°F), averaging 6°C (43°F). Additionally, May experiences higher precipitation levels, with 62 mm (2.4 in) over 12 days, compared to January's 53 mm (2.1 in) over 10 days. Humidity remains relatively consistent, slightly higher in January at 85%, compared to 83% in May. For a more detailed understanding of January conditions, you can explore Portmarnock weather in January.
When comparing the weather in May and February, it is clear that May is generally warmer and more pleasant. In May, temperatures range from a minimum of 1°C (34°F) to a maximum of 22°C (72°F), averaging around 12°C (53°F), while February sees cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 15°C (58°F), averaging just 7°C (44°F). Additionally, May has slightly less precipitation at 62 mm (2.4 in) compared to February's 73 mm (2.9 in), albeit with precipitation occurring on 12 days in May versus 14 in February. Humidity levels are also quite high in both months, with May at 83% and February slightly higher at 86%. For more detailed information on February weather conditions, you can visit Portmarnock weather in February.
When comparing the weather in May and March, May generally offers milder temperatures, with averages reaching 12°C (53°F) and maximums of 22°C (72°F), compared to March's averages of 7°C (45°F) and maximums of only 16°C (62°F). Despite May being warmer, it experiences slightly less precipitation at 62 mm (2.4 in) over 12 days, while March sees more rainfall at 73 mm (2.9 in) across 14 days. Humidity levels are fairly similar, with May at 83% and March at 86%, indicating that both months carry a notable dampness, but March feels colder overall. For a more detailed look at March weather specifics, visit Portmarnock weather in March.
In comparing the weather between April and May, we can observe a noticeable warming trend. May sees an increase in average temperatures, rising from April's average of 9°C (48°F) to 12°C (53°F), with maximum temperatures also climbing to 22°C (72°F). Additionally, May experiences slightly more rainfall, with 62 mm (2.4 in) of precipitation over 12 days compared to April's 44 mm (1.7 in) across 11 days. Humidity remains high in both months, with May averaging 83% and April at 85%. For a detailed view of April's weather, you can visit Portmarnock weather in April.
May and June present a notable transition in weather conditions. In May, temperatures range from a chilly minimum of 1°C (34°F) to a warm maximum of 22°C (72°F), with an average of 12°C (53°F). The month experiences about 62 mm (2.4 in) of precipitation over 12 days and maintains a high humidity level of 83%. In contrast, June sees a rise in temperatures with minimums of 7°C (44°F) and maximums reaching 25°C (77°F), averaging 15°C (58°F). Precipitation increases slightly to 69 mm (2.7 in) over 13 days, while humidity remains comparable at 85%. Overall, June tends to be warmer and slightly wetter than May, signaling the onset of summer. For more specifics on June weather, you can check Portmarnock weather in June.
When comparing the weather in May and July, notable differences emerge in temperature and precipitation. May experiences a cooler climate, with minimum temperatures dropping to 1°C (34°F) and an average of 12°C (53°F), while July sees a warmer range, with minimums at 8°C (47°F) and an average of 16°C (62°F). Additionally, July has a maximum temperature of 27°C (80°F), compared to May's peak of 22°C (72°F). Both months experience similar precipitation levels, with May receiving 62 mm (2.4 in) and July slightly higher at 73 mm (2.9 in), but the humidity remains relatively close, at 83% in May and 86% in July. For a detailed look at the weather specifics, you can visit Portmarnock weather in July.
May tends to be cooler than August, with temperatures ranging from a chilly 1°C (34°F) to a mild maximum of 22°C (72°F), while August sees temperatures starting at 8°C (47°F) and peaking at 23°C (74°F). In terms of precipitation, May experiences less rain with 62 mm (2.4 in) over 12 days, compared to August's 95 mm (3.7 in) across 16 days. Humidity remains relatively high in both months, with May at 83% and August slightly higher at 85%. For more detailed information on weather patterns, you can view Portmarnock weather in August.
In comparing the weather between May and September, we notice a gradual transition into cooler conditions. May typically experiences temperatures ranging from a cool 1°C (34°F) at night to a pleasant high of 22°C (72°F) during the day, with an average of 12°C (53°F). Conversely, September starts off slightly warmer, with minimum temperatures of 4°C (39°F) and an average of 14°C (57°F), while still reaching highs of 22°C (72°F).
Precipitation in May totals 62 mm (2.4 in) over approximately 12 days, while September sees a bit more rain at 70 mm (2.7 in) across 13 days. Humidity is also slightly higher in September at 86%, compared to May's 83%. For a more detailed look at conditions in September, you can check out Portmarnock weather in September.
In comparing the weather between May and October, both months exhibit similar average temperatures, with May ranging from a minimum of 1°C to a maximum of 22°C, and October showing slightly cooler temperatures with a minimum of 2°C and a maximum of 19°C. Precipitation levels in October are higher, totaling 79 mm over 13 days, compared to May's 62 mm over 12 days, indicating a wetter climate as the seasons transition. Additionally, October tends to be slightly more humid, with an average humidity of 87% compared to May's 83%. For more detailed insights, you can visit Portmarnock weather in October.
May and November exhibit notable differences in weather patterns. In May, temperatures typically range from a minimum of 1°C (34°F) to a maximum of 22°C (72°F), with an average of 12°C (53°F), creating a pleasant and mild atmosphere. The month experiences about 62 mm (2.4 inches) of precipitation over 12 days, coupled with a humidity level of 83%. In contrast, November presents cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 15°C (60°F), averaging around 8°C (48°F). This month is wetter, receiving 93 mm (3.6 inches) of rainfall over 14 days, and slightly higher humidity at 86%. The shift from May's gentle warmth to November's chill and increased precipitation reflects the transition from spring to late autumn. For more detailed information, check out Portmarnock weather in November.
May and December present contrasting weather patterns, reflecting the transition from spring to winter. In May, temperatures range from a mild 1°C (34°F) at night to a pleasant 22°C (72°F) during the day, with average temperatures around 12°C (53°F). This month experiences about 62 mm (2.4 in) of precipitation over 12 days and maintains a relatively high humidity level of 83%. In contrast, December sees cooler temperatures, with a minimum of -2°C (30°F), an average of 7°C (45°F), and a maximum of 13°C (56°F). The month is wetter, experiencing 85 mm (3.4 in) of rainfall spread over 14 days, along with a similar humidity level of 84%. For more specific insights into December weather, you can visit Portmarnock weather in December.
As spring blooms in Portmarnock, May offers a delightful contrast to the cooler months, with temperatures warming up significantly, allowing for more outdoor enjoyment. The average temperature of 12°C provides a comfortable backdrop, though temperatures can reach a pleasant 22°C on sunny days. However, be prepared for occasional rain, as May sees about 12 days of precipitation, contributing to the month's 83% humidity. This balance of warmth and moisture makes May a vibrant time in Portmarnock, perfect for exploring all that the region has to offer. To better understand the yearly patterns, check out Portmarnock Climate.