May Weather in Rosslare, Ireland

Last updated: March 17, 2025

In May, Rosslare, Ireland experiences a refreshing climate characterized by an average temperature of 11°C (52°F), with highs reaching up to 15°C (60°F) and lows dipping to around 5°C (41°F). This month witnesses a precipitation total of 57 mm (2.3 in), spread over 9 days, contributing to the area's lush greenery. With an average humidity of 83%, visitors can expect a moderate yet invigorating atmosphere, perfect for outdoor activities amidst the scenic coastal beauty.

May Temperature in Rosslare

In May, Rosslare begins to shake off the lingering chill of winter, welcoming slightly warmer temperatures that signal the arrival of spring. With minimums rising to 5°C (41°F) and average highs reaching 15°C (60°F), it's a pleasant transition, making it more inviting for outdoor activities. The average temperature of 11°C (52°F) highlights a clear upward trend from the earlier months, particularly when contrasted with the cooler days of April and March. As the days grow longer and sunnier, May serves as a delightful préamble to the summer, beckoning visitors to explore the coastal beauty of this charming Irish town.

May Weather in Rosslare: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Rosslare, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec464646485257606059555048
Data source: Temperature data for Rosslare generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Rosslare

May marks a transition in Rosslare, Ireland, as the spring blooms into early summer. With 57 mm (2.3 in) of precipitation over 9 days, May's rainfall is lighter compared to the preceding months, creating a more pleasant atmosphere for outdoor activities. This dip in both rainfall and the number of rainy days signifies a shift, as April observed 60 mm (2.4 in) over just 8 days. As we move closer to summer, one can expect the weather to become increasingly inviting, though the cumulative precipitation trend of the region suggests that frequent showers remain a staple of Rosslare's climate. The month sets a hopeful tone for the warmer season ahead, balancing the lush green landscape with gradually improving conditions for sun-seeking locals and visitors alike.

May Precipitation Trends in Rosslare

The chart displays monthly precipitation patterns in Rosslare, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec6610388605770628984118139131
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Rosslare

In May, Rosslare, Ireland, experiences a slight dip in humidity, averaging at 83%, making it one of the driest months of the year. This moderate decrease compared to the consistent 85-86% humidity levels observed in the preceding months—January through April—signals a subtle shift as spring transitions into early summer. Interestingly, humidity levels begin to rise again in June, maintaining a rhythm typical of this coastal locale. Overall, while May may offer a brief reprieve from the usual dampness, the lingering moisture of surrounding months hints at the ever-present maritime climate that characterizes Rosslare.

May Average Humidity in Rosslare

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

May UV Index in Rosslare

As we transition into May in Rosslare, Ireland, the UV Index escalates to a notable 7, marking the onset of a high exposure category. This increase reflects a shift from the moderate levels observed in the previous months, indicating that sun protection becomes increasingly essential. With a burn time reduced to just 25 minutes, it's a clear signal for residents and visitors alike to take precautions against UV radiation. As summer approaches, the UV Index will continue to rise, peaking in the coming months. For more detailed insights, refer to Rosslare UV Index. Keep this in mind as you enjoy the longer days ahead!

Maximum UV Index Levels in Rosslare for May

The chart shows the monthly maximum UV Index (UVI) for Rosslare in May, 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Rosslare May 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.

May Sunshine in Rosslare

In Rosslare, Ireland, May shines brightly with 411 hours of sunshine, contributing to the emergence of a distinct trend as the year progresses. Starting the year with a modest 98 hours in January, the warmth of spring brings a steady increase, culminating in the 325 hours recorded in April. This upward trajectory peaks in May as the days grow longer and sunnier, just shy of June’s remarkable count of 412 hours. Following the peak summer months, the sunshine gradually wanes, with August seeing 371 hours and September dropping to 317 hours. Overall, the pattern suggests a vibrant spring transition into a balmy summer, making May a highlight in Rosslare’s sunny calendar.

Monthly Sunshine Duration in Rosslare: May Highlighted

The May sunshine duration represents the total number of hours Rosslare experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec98h155h218h325h411h412h420h371h317h251h139h111h
Data source: Rosslare May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Rosslare During May

May in Rosslare, Ireland, brings a moderate chance of sunny weather, with approximately 39% likelihood of sunshine—a promising uptick from the gloomier winter months. While April edges ahead with 51%, suggesting a delightful spring, May's figures hold their own against summertime expectations, as June and July dip back down to 29% and 39%, respectively. This trend reflects the unpredictable nature of Irish weather, where sunshine can be a treasure to savor, encouraging outdoor adventures before the summer crowd arrives. As spring transitions into early summer, May serves as a key month for those hoping to catch glimpses of sunlight and enjoy the blossoming landscapes.

Percentage of Sunny Days in May in Rosslare

The chart illustrates the percentage of sunny days in Rosslare throughout the year, with May 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 Rosslare experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%25%29%51%39%29%39%35%26%21%32%25%
Data source: Rosslare May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rosslare in May

As the year unfolds in Rosslare, Ireland, daylight duration steadily increases, creating a beautiful transition from the long winter months to the vibrant lights of summer. Starting with a modest 8 hours in January, the days gradually lengthen, reaching 15 hours by May. This month offers a delightful surge in daylight that energizes the community and enhances outdoor experiences. Following this peak, June and July boast the longest days at 16 hours, allowing residents to relish the Irish countryside well into the evening. As summer wanes, daylight begins to recede, with August still enjoying 14 hours before the season shifts again into shorter days. The rhythm of daylight in Rosslare captures the essence of nature's cycle, inviting both relaxation and adventure.

Average Daylight Hours in Rosslare for May

The chart illustrates the variation in daylight duration in Rosslare throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 17m9h 55m11h 54m13h 57m15h 44m16h 40m16h 10m14h 34m12h 36m10h 34m8h 44m7h 46m
Data source: Rosslare daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Rosslare

In May, Rosslare experiences a gentle breeze with an average wind speed of 6.2 m/s (14 mph), marking a slight rise from the calmer April days. This mild conditions hint at the seasonal transition as the winds become less fierce compared to the brisk spells of early spring, with March peaking at 6.9 m/s (15 mph). Following May, the winds continue to soften into summer, with June's average also dropping back to 5.4 m/s (12 mph). This trend of diminishing wind speeds aligns seamlessly with the gradual warming of the months, inviting locals and visitors alike to enjoy the scenic coastlines without the chill of stronger gales. The shift towards softer breezes creates a serene atmosphere, perfect for outdoor activities as summer approaches.

Average May Wind Speed in Rosslare

The chart displays monthly wind speed patterns in Rosslare, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec7.59.56.95.46.2 m/s5.44.35.75.17.77.08.0
Data source: Rosslare May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Rosslare Compares to Other Months

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

In comparing the weather of May and January, we see that May typically enjoys milder temperatures, with averages reaching around 11°C (52°F) compared to January's 8°C (46°F). While January can bring slightly lower minimum temperatures, May tends to have a maximum of 15°C (60°F), making it feel more pleasant overall. Precipitation is slightly higher in January, with 66 mm (2.6 in) over 13 days, compared to May’s 57 mm (2.3 in) spread across 9 days, but both months have relatively high humidity levels, with May at 83% and January at 85%. For a more detailed look at January weather, you can visit Rosslare weather in January.

May generally offers mild temperatures, with an average of 11°C (52°F) and a max of 15°C (60°F), making it noticeably warmer than February, which has an average of 8°C (46°F) and a max of 12°C (55°F). While May experiences less precipitation, totaling 57 mm (2.3 in) over about 9 days, February is much wetter with 103 mm (4.1 in) spread across 16 days. Humidity levels are quite similar, at 83% in May and 86% in February. For a closer look at February's weather patterns, check out Rosslare weather in February.

In comparing the weather of May and March, May typically offers milder conditions with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 15°C (60°F), while March experiences colder temperatures, with a minimum of -1°C (30°F) and a maximum of 12°C (53°F).

March also sees more precipitation, with 88 mm (3.5 in) over 15 days, compared to May's 57 mm (2.3 in) spread across 9 days. The humidity levels are quite similar, with May at 83% and March slightly higher at 86%. For a deeper look into March's climate, you can check out Rosslare weather in March.

In comparing the weather patterns of April and May, we see a slight warming trend in May, with average temperatures rising from 9°C (48°F) in April to 11°C (52°F). The minimum temperature in May is also higher, at 5°C (41°F), compared to April's 2°C (37°F). While May experiences a bit less precipitation at 57 mm (2.3 in) over 9 days, compared to April's 60 mm (2.4 in) over 8 days, humidity remains relatively constant, with May at 83% and April at 85%. This indicates that while May is slightly warmer, April brings a similar level of moisture and cloudiness. For more detailed insights into April weather, visit Rosslare weather in April.

May and June showcase a transition in weather as spring gives way to summer. In May, the temperatures range from a minimum of 5°C (41°F) to a maximum of 15°C (60°F), with an average of 11°C (52°F) and a humidity level of 83%. This month also sees about 57 mm (2.3 in) of precipitation spread over 9 days. In contrast, June experiences warmer temperatures, with a minimum of 9°C (48°F), an average of 14°C (57°F), and a maximum of 19°C (66°F). Although June has a slightly higher precipitation total of 70 mm (2.8 in) over 11 days, it also has a similar humidity level of 85%. For more details on June weather in this region, you can explore the link: Rosslare weather in June.

In comparing the weather between May and July, we can observe some notable differences. May features cooler temperatures, with a minimum of 5°C (41°F) and an average of 11°C (52°F), while July brings warmer conditions, starting with a minimum of 11°C (52°F) and averaging 15°C (60°F). Although both months experience similar levels of precipitation, with May totaling 57 mm (2.3 in) over 9 days and July slightly higher at 62 mm (2.4 in) over 11 days, July also exhibits higher humidity levels at 86%, compared to May's 83%. For more detailed information on July's climate, you can check Rosslare weather in July.

In May, temperatures range from a chilly 5°C (41°F) to a mild maximum of 15°C (60°F), with an average of 11°C (52°F). The month experiences about 57 mm (2.3 in) of precipitation over 9 days, coupled with a high humidity level of 83%. In contrast, August sees a noticeable warmth, with minimum temperatures starting at 11°C (52°F) and reaching up to 19°C (66°F), averaging 16°C (60°F). Although August is slightly wetter, with 89 mm (3.5 in) of precipitation spread across 11 days, the humidity remains relatively high at 85%. For a more detailed look at the weather specifics in August, you can check Rosslare weather in August.

May and September present distinct weather characteristics, with May experiencing cooler temperatures and higher humidity levels. In May, daytime averages hover around 11°C (52°F), with maximum temperatures reaching 15°C (60°F), while September sees warmer averages of 15°C (59°F) and highs up to 19°C (66°F). Precipitation is more frequent in September, with 84 mm (3.3 in) expected over 13 days, compared to May's 57 mm (2.3 in) across 9 days. Humidity remains relatively high in both months, at 83% in May and slightly higher at 86% in September. For a deeper look at September’s weather, you can visit Rosslare weather in September.

May and October present distinct weather patterns, reflecting the transition between spring and autumn. In May, the temperatures range from a minimum of 5°C (41°F) to a maximum of 15°C (60°F), with an average of 11°C (52°F). Precipitation is relatively moderate at 57 mm (2.3 in) over about 9 days, and humidity sits at 83%. In contrast, October sees slightly warmer temperatures with a minimum of 6°C (43°F), an average of 13°C (55°F), and a maximum of 18°C (65°F). However, it is significantly wetter, with precipitation measuring 118 mm (4.6 in) over 16 days, and humidity increases to 87%. For a more detailed look at October weather, check out Rosslare weather in October.

May and November present notable contrasts in weather, particularly in terms of precipitation and humidity. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 15°C (60°F), with an average of 11°C (52°F) and comparatively lower precipitation at 57 mm (2.3 inches) over approximately 9 days. In contrast, November experiences slightly cooler temperatures, with a minimum of 4°C (40°F), an average of 10°C (51°F), and a maximum that matches May at 15°C (60°F). However, the month brings significantly more rainfall, totaling 139 mm (5.5 inches) over 18 days, along with increased humidity at 86%. This stark difference in precipitation highlights November's wetter conditions compared to the milder, drier May. For more insights, check out Rosslare weather in November.

May and December present distinctly different weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 15°C (60°F), with an average of 11°C (52°F). The month experiences about 57 mm (2.3 in) of precipitation over approximately 9 days, accompanied by a humidity level of 83%. In contrast, December tends to be cooler, with temperatures varying from a minimum of 2°C (36°F) to a maximum of 13°C (56°F), averaging 9°C (48°F). This month sees significantly higher precipitation, totaling 131 mm (5.1 in) across 17 days, while humidity remains slightly elevated at 84%. For those interested in a detailed overview, more information can be found at Rosslare weather in December.

Compare Rosslare's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Rosslare

May in Rosslare marks a shift towards milder temperatures as the chill of winter subsides. With an average temperature hovering around 11°C, the month feels pleasantly warmer, though occasional cool snaps can still occur. While precipitation remains notable, with around 57 mm falling over about 9 days, it’s a welcome balance to the lush greenery that thrives in this springtime climate. The high humidity at 83% can make the air feel softer, contributing to a refreshing coastal experience unique to this month. As you enjoy the blossoming landscapes and longer daylight hours, you can learn more about what the weather offers year-round by checking the Rosslare Climate.