May Weather in Greystones, Ireland

Last updated: March 17, 2025

In May, the charming coastal town of Greystones, Ireland experiences a blend of refreshing temperatures and moderate rainfall. With maximum temperatures reaching 17°C (63°F) and an average of 11°C (52°F), the month offers a pleasant respite from cooler spring days. Visitors can anticipate occasional chill, as minimum temperatures dip to 3°C (38°F). Alongside these temperatures, the town witnesses a total precipitation of 61 mm (2.4 in) spread over 12 days, contributing to the lush greenery that Ireland is known for. Additionally, the humidity level of 83% adds a refreshing coastal feel to the air. May in Greystones is an ideal time for both locals and tourists to enjoy the scenic beauty and vibrant life of this seaside gem.

May Temperature in Greystones

In May, Greystones, Ireland begins to shake off the chill of winter, experiencing a pleasant minimum temperature of 3°C (38°F) and a comfortable average of 11°C (52°F). As spring unfolds, the region enjoys a maximum temperature reaching 17°C (63°F), marking a noticeable increase from the cooler months. This month serves as a transition, showcasing a significant leap in warmth compared to the likes of March and April, where temperatures barely surpassed 15°C (59°F). With the days growing longer and the sun shining brighter, May is a delightful time for both locals and visitors to embrace the beauty of Greystones’ coastal charm.

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

The chart illustrates May temperature patterns in Greystones, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec444445475156595957534946
Data source: Temperature data for Greystones 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.

May Precipitation in Greystones

In May, Greystones experiences a moderate precipitation total of 61 mm (about 2.4 inches), spread over 12 rainy days. This amount signifies a slight decrease from April's 48 mm, suggesting the month transitions into drier conditions compared to the heavier downpours of late winter and early spring. As the landscape bursts into spring bloom, May often retains a balance between sunshine and showers, making it a delightful time for outdoor activities, albeit with the need for an umbrella. Looking ahead to June, precipitation levels increase again, hinting at a return to the characteristic Irish mix of rain and sun as the summer approaches. Overall, May serves as a bridge, displaying varying trends in Greystones' rainfall patterns.

May Precipitation Trends in Greystones

The chart displays monthly precipitation patterns in Greystones, 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.
JanFebMarAprMayJunJulAugSepOctNovDec708687486175789682101127110
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Greystones

In Greystones, Ireland, May experiences a slight dip in humidity, with levels averaging 83%—the lowest point since January. This trend marks a subtle transition as the season shifts towards summer. Interestingly, the humidity remains relatively stable throughout the spring months, hovering around the mid-80s, but May stands out with a slightly more comfortable feel. Following this seasonal dip, the humidity rises again in June and the subsequent summer months, maintaining the characteristic dampness that defines Ireland's coastal climate. Overall, while May offers a brief respite from the humidity, it is a gentle reminder of the wet conditions that will return with the summer heat.

May Average Humidity in Greystones

This chart illustrates the average monthly humidity levels in Greystones, 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 Greystones

As spring transitions into summer, May in Greystones, Ireland, marks a noticeable increase in the UV Index, reaching a robust 7, categorizing it as high. This shift signals the need for heightened sun protection, as the burn time reduces to just 25 minutes. Compared to the previous months, where the UV levels hovered between low and moderate, May brings a clear trend towards stronger sun exposure. With safer outdoor activities becoming more appealing, it’s vital to stay aware and protect your skin. As June approaches, the UV Index will continue to climb, emphasizing the importance of sun safety. For more information on UV levels and protective measures, visit Greystones UV Index.

Maximum UV Index Levels in Greystones for May

The chart shows the monthly maximum UV Index (UVI) for Greystones 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Greystones 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 Greystones

In Greystones, Ireland, the month of May shines brightly, boasting 408 hours of sunshine, making it a peak time for outdoor enthusiasts. This vibrant month follows a steady upward trend in sunlight, with hours increasing from 87 in January to a remarkable 329 by April. The ascent culminates in May before gently tapering off as summer progresses, seeing 401 hours in June and 403 in July. Notably, the gradual decline in sunlight hours continues through the latter half of the year, with 127 hours in November and dwindling to 101 in December. This progression not only highlights May as a spectacular showcase of sunshine but also reflects the rhythmic ebb and flow of light throughout the seasons in Greystones.

Monthly Sunshine Duration in Greystones: May Highlighted

The May sunshine duration represents the total number of hours Greystones 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.
JanFebMarAprMayJunJulAugSepOctNovDec87h153h207h329h408h401h403h361h308h237h127h101h
Data source: Greystones May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Greystones During May

In Greystones, Ireland, the likelihood of sunny weather experiences an interesting evolution throughout the year. After the cold and often cloudy winter months, the chance of sunshine begins to rise significantly in April, peaking at 49%. As we transition into May, the probability of sun dips to 35%, but still remains higher than the winter averages, signaling the arrival of spring. Despite a slight decrease, May continues to offer a promising respite from the overcast skies that define the earlier months, suggesting that as the year progresses, so too does the potential for brighter days ahead. This trend underscores the importance of May as a time when Greystones begins to shed its winter gloom, inviting residents and visitors alike to embrace the emerging warmth and longer daylight hours.

Percentage of Sunny Days in May in Greystones

The chart illustrates the percentage of sunny days in Greystones 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 Greystones experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%23%25%49%35%27%34%27%23%21%27%24%
Data source: Greystones May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Greystones in May

As spring unfolds into summer, Greystones, Ireland basks in a delightful increase in daylight, culminating in May, where residents enjoy an impressive 15 hours of daylight. This month heralds a significant transition from the wintery shadows of January, which only provides a mere 8 hours. As the months progress from February's 9 hours to March’s 11 hours, the slower lengthening of days becomes more pronounced. April brings 14 hours, hinting at the vibrant energy of summer just around the corner. Following May, June and July peak with a glorious 16 hours of daylight, creating the perfect canvas for outdoor adventures. However, as summer wanes into autumn, daylight begins to recede again, dropping to 14 hours in August and gradually tapering off to 10 hours by October, before returning to the shorter days of winter. This cyclical dance of daylight illustrates the rhythm of the seasons, each month unveiling new opportunities to explore and enjoy the natural beauty of the Irish coastline.

Average Daylight Hours in Greystones for May

The chart illustrates the variation in daylight duration in Greystones throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 9m9h 50m11h 54m14h 1m15h 52m16h 50m16h 19m14h 39m12h 36m10h 31m8h 38m7h 37m
Data source: Greystones daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Greystones

In Greystones, Ireland, the winds of May are relatively gentle, with an average speed of 5.2 m/s (12 mph), marking a slight increase from the calmer April days. As spring transitions into summer, wind speeds typically dip; however, May's breezes provide a refreshing touch, setting the stage for outdoor activities along the scenic coast. This month stands out among its predecessors, with only January, October, November, and December showcasing more robust winds. Overall, the trend suggests a gradual calming as summer approaches, but May maintains enough vigor to keep the air lively and invigorating for residents and visitors alike.

Average May Wind Speed in Greystones

The chart displays monthly wind speed patterns in Greystones, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.48.26.04.65.2 m/s4.83.44.64.36.76.66.8
Data source: Greystones May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Greystones Compares to Other Months

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

In May, the weather generally warms up, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 17°C (63°F) and an average of 11°C (52°F). The month sees about 61 mm (2.4 in) of precipitation over approximately 12 days, accompanied by a humidity level of 83%. In contrast, January is cooler, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 13°C (56°F) and an average of 7°C (44°F). January experiences slightly higher precipitation at 70 mm (2.7 in) over approximately 11 days, with a humidity level slightly higher at 85%. For more detailed insights, you can visit Greystones weather in January.

In comparing the weather between May and February, May presents a milder and more temperate atmosphere, with average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 17°C (63°F), while February experiences slightly cooler conditions, averaging between 0°C (33°F) and 13°C (56°F). May also sees less precipitation, totaling 61 mm (2.4 in) over approximately 12 days, compared to February's 86 mm (3.4 in) over 15 days. Additionally, humidity levels are relatively high in both months, with May at 83% and February slightly higher at 86%. For a detailed look at February's weather, you can check Greystones weather in February.

In comparing the weather of May and March, we can see a noticeable transition as spring progresses into late spring. May offers milder temperatures, with a minimum of 3°C (38°F) and an average of 11°C (52°F), peaking at a comfortable 17°C (63°F). In contrast, March still feels quite chilly, starting with a minimum of -3°C (28°F) and averaging 7°C (45°F) with a maximum of 13°C (55°F). Precipitation levels in May are slightly lower at 61 mm (2.4 in) over 12 days, compared to March's 87 mm (3.4 in) over 15 days. Both months have high humidity, with May at 83% and March just slightly higher at 86%. For a closer look at March conditions, you can visit Greystones weather in March.

In comparing the weather of May and April, May tends to be slightly warmer overall. The average temperature in May is 11°C (52°F), compared to April's cooler average of 8°C (47°F). Additionally, May experiences higher maximum temperatures, reaching up to 17°C (63°F), while April peaks at 15°C (58°F). Precipitation in May is also greater, with 61 mm (2.4 in) falling over 12 days, compared to April's 48 mm (1.9 in) over 11 days. Humidity levels are quite similar, with May at 83% and April slightly higher at 85%. For a more detailed look at April weather patterns, you can visit Greystones weather in April.

In comparing the weather between May and June, we see a notable increase in temperatures. May features a minimum temperature of 3°C (38°F), an average of 11°C (52°F), and a maximum of 17°C (63°F), while June enjoys warmer conditions with a minimum of 8°C (46°F), an average of 13°C (56°F), and a maximum of 19°C (67°F). Precipitation also sees a slight rise in June, with 75 mm (2.9 in) over 13 days compared to May's 61 mm (2.4 in) across 12 days. Humidity remains relatively high in both months, at 83% in May and 85% in June. For more detailed information on June weather, you can check out Greystones weather in June.

In May, temperatures in Greystones range from a chilly minimum of 3°C (38°F) to a pleasant average of 11°C (52°F), peaking at a maximum of 17°C (63°F). With 61 mm (2.4 in) of precipitation over 12 days, the month tends to be quite wet, accompanied by high humidity at 83%. In contrast, July experiences warmer temperatures, with a minimum of 10°C (51°F), an average of 15°C (60°F), and a maximum of 20°C (68°F). Although July sees increased precipitation at 78 mm (3.1 in) over 14 days, humidity rises slightly to 86%. For more detailed information on July weather, check out Greystones weather in July.

May and August exhibit notable differences in weather patterns. In May, temperatures range from a cool minimum of 3°C (38°F) to a comfortable maximum of 17°C (63°F), with an average of 11°C (52°F). This month sees about 61 mm (2.4 in) of precipitation over 12 days, coupled with a relatively high humidity of 83%. By contrast, August brings warmer conditions, with minimum temperatures starting at 10°C (51°F) and peaking at 20°C (68°F), averaging around 15°C (60°F). Precipitation increases to 96 mm (3.8 in) over 16 days, and humidity remains slightly elevated at 85%. For more detailed information on August weather, you can check Greystones weather in August.

May and September present quite different weather experiences. In May, temperatures range from a chilly minimum of 3°C (38°F) to a comfortable maximum of 17°C (63°F), with an average of 11°C (52°F). The month sees about 61 mm (2.4 in) of precipitation over 12 days, with humidity levels at 83%. In contrast, September enjoys slightly warmer temperatures, with minima around 7°C (45°F) and maxima reaching 20°C (68°F), averaging 14°C (57°F). However, it experiences a bit more rainfall, totaling 82 mm (3.2 in) over 14 days, and slightly higher humidity at 86%. For a more detailed look at September's weather, you can check Greystones weather in September.

May and October present distinct weather patterns as the seasons transition. In May, temperatures range from a minimum of 3°C (38°F) to a maximum of 17°C (63°F), with an average of 11°C (52°F). The month experiences around 61 mm (2.4 in) of precipitation over approximately 12 days, accompanied by an 83% humidity level. Conversely, October sees slightly warmer temperatures, with a minimum of 5°C (41°F) and a maximum of 18°C (64°F), averaging around 12°C (53°F). However, it is also wetter, with total precipitation reaching 101 mm (4.0 in) on about 16 days and an increased humidity of 87%. For a detailed overview of October weather in Greystones, check out Greystones weather in October.

In May, temperatures begin to rise, with minimums around 3°C (38°F) and averages reaching 11°C (52°F), peaking at 17°C (63°F). The month sees about 61 mm (2.4 in) of precipitation spread over approximately 12 days, accompanied by a humidity level of 83%. In contrast, November presents cooler weather, with an average temperature dropping to 9°C (49°F) and a maximum of 15°C (59°F). Precipitation increases significantly to 127 mm (5.0 in) across roughly 17 days, and humidity also rises slightly to 86%. For more detailed information on November weather in Greystones, you can visit Greystones weather in November.

In May, the weather is generally milder with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 17°C (63°F) and an average of 11°C (52°F). The month experiences around 61 mm (2.4 in) of precipitation over 12 days, coupled with a humidity level of 83%. In contrast, December brings cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 13°C (56°F), averaging at 8°C (46°F). This month also sees an increase in precipitation, totaling 110 mm (4.3 in) across 16 days and maintaining a slightly higher humidity level of 84%. For more detailed information on December weather, visit Greystones weather in December.

Compare Greystones's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Greystones

As May arrives in Greystones, the weather begins to shift from the cooler temperatures of early spring, offering a refreshing embrace with warmer days and an average temperature hovering around 11°C (52°F). Unlike the chill of the preceding months, you can expect maximum temperatures to reach around 17°C (63°F), allowing for more opportunities to enjoy the great outdoors. However, May does bring its share of rain, with 61 mm (2.4 in) falling over about 12 days, and the humidity remains fairly high at 83%, which can make the air feel quite muggy at times. Overall, May serves as a pleasant transition into summer, offering a mix of warmth and moisture that sets the stage for the sunnier days ahead. For more details on the climate, visit Greystones Climate.