Last updated: March 17, 2025
Dublin in May offers a mild climate that beckons both locals and visitors to explore the vibrant city. With maximum temperatures reaching up to 21°C (71°F) and an average of 11°C (52°F), the weather is pleasantly cool. However, be prepared for the occasional chill, as it can dip to a minimum of 0°C (32°F) at night. Rainfall is frequent, with 72 mm (2.8 in) of precipitation spread over 14 days, creating a lush, green landscape. The high humidity level of 83% adds to the refreshing atmosphere, making May an enchanting time to enjoy Dublin's rich culture and stunning scenery.
May in Dublin marks a vibrant transition toward warmer weather, with temperatures starting to rise significantly from the chill of winter. The month greets visitors with a minimum temperature of 0°C (32°F), while the average climbs to a comfortable 11°C (52°F), peaking at a delightful 21°C (71°F) during the day. This shift represents a steady upward trend from the cooler months, as each passing day brings more sunshine and increasingly inviting conditions. Compared to April's temperatures, May showcases a remarkable jump, making it a perfect time to explore the city's picturesque parks and lively streets, basking in the longer, warmer days.
May in Dublin experiences moderate rainfall, with 72 mm (2.8 in) of precipitation falling over 14 days, setting a tone of lush greenery that characterizes the city's springtime beauty. This amount reflects a slight increase from April’s 52 mm, hinting at a trend where precipitation begins to rise as the year progresses toward the wetter summer months. Comparatively, June typically sees a minimal uptick to 75 mm, suggesting that Dublin's landscape is richly nourished during May, fostering vibrant blooms and a refreshing atmosphere. As the city transitions into the summer, residents and visitors alike can expect the juxtaposition of sunny days and occasional showers, a hallmark of Ireland's unpredictable yet charming weather.
In May, Dublin experiences a modest drop in humidity, averaging 83%, which marks the beginning of a slight seasonal trend. Following the wetter months of January through April, where humidity levels hover around 85-86%, May offers a brief reprieve, leading into a comparable pattern throughout the summer. Interestingly, this decrease sets a fascinating contrast against the impending rise of 86% in both July and September, showcasing Dublin's persistent proximity to moisture. Overall, May's relatively lower humidity provides a refreshing interlude before the city returns to its characteristic dampness in the following months.
In May, Dublin experiences a noticeable rise in the UV Index, reaching a level of 7, categorized as high. This shift signifies a compelling change from the more moderate UV exposure seen in previous months, such as the 4 in March and 5 in April, where the burn time was manageable at 30 minutes. As the days grow longer and sunnier, residents and visitors alike must now limit their unprotected sun exposure to just 25 minutes. This trend underscores the importance of sun safety as summer approaches, reminding everyone to embrace the sunshine wisely. For a detailed understanding of the UV levels throughout the year, check out Dublin UV Index.
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As May unfolds in Dublin, the city basks in a radiant glow, boasting an impressive 391 hours of sunshine—an uplifting peak that signals the arrival of summer. This significant leap from 311 hours in April showcases the vibrant transition as the days grow longer and brighter. Following May, June and July maintain a similar brightness with 385 hours, inviting both locals and visitors to enjoy outdoor pursuits. Interestingly, the sunshine gradually diminishes towards autumn, dipping to 294 hours in September and continuing downward through the chill of winter. This delightful burst of May sunshine not only brightens the skyline but also heralds a season of warmth and social connection, making it a cherished time in Dublin.
As spring blossoms into full swing, Dublin experiences a notable increase in sunny weather potential, particularly in May, where the chance of sunshine rises to 31%. This marks an uplifting contrast to the cooler early months of the year, which hover around 22%. Following a jump to 44% in April, May's figures suggest a shift toward brighter days, setting a hopeful tone for residents and visitors alike. While June dips slightly back to 24%, the promise of sunshine in May creates a vibrant atmosphere, encouraging outdoor activities and events. This trend hints at the city's transition into the warmer months, where longer days and increased likelihood of sunny spells in Dublin spark optimism for outdoor enjoyment.
As spring blossoms into summer, May in Dublin heralds a significant increase in daylight duration, with the city basking in approximately 15 hours of sunlight. This uplift follows a gradual ascent from 8 hours in January to 14 hours in April, illustrating a clear trend towards longer days as the year progresses. By the time June arrives, Dublin enjoys its peak daylight with 16 hours, creating an abundance of opportunities for outdoor activities and exploration. As summer yields to autumn, daylight tapers off, dropping to 12 hours in September and further to 10 hours by October. This seasonal rhythm not only reflects the enchanting cycle of light and dark but also sets the stage for Dublin's vibrant summer atmosphere.
In Dublin, May brings a gentle breeze with an average wind speed of 4.0 m/s (9 mph), making it one of the calmer months of the year. Following a notably breezy February at 6.0 m/s (13 mph), the winds begin to taper off, as seen from the more variable April, averaging only 3.4 m/s (8 mph). This transitional phase sets the stage for a pleasant early summer, as the winds further decrease into June and July, with the latter dipping to a mere 2.7 m/s (6 mph). Overall, May encapsulates the shift toward milder weather, inviting residents and visitors alike to enjoy the thriving landscapes and vibrant atmosphere of the city without the disruptive bluster of earlier months.
The weather in Dublin 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 Dublin and find detailed weather information for every month.
In May, temperatures in Dublin generally range from a minimum of 0°C (32°F) to a maximum of 21°C (71°F), with an average of 11°C (52°F). The month experiences about 72 mm (2.8 in) of precipitation over approximately 14 days, and the humidity sits at 83%. In contrast, January brings colder conditions, with temperatures dipping as low as -3°C (26°F) and averaging around 5°C (42°F), peaking at 13°C (56°F). Precipitation is slightly lower at 57 mm (2.2 in) over about 10 days, while humidity is marginally higher at 85%. For more details on January weather in Dublin, you can visit Dublin weather in January.
May generally offers milder weather compared to February, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 21°C (71°F) and an average of 11°C (52°F). In contrast, February experiences cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 14°C (58°F), averaging around 6°C (43°F). While both months receive similar precipitation, with February seeing 80 mm (3.1 in) and May having 72 mm (2.8 in) over 14 days, the humidity is slightly lower in May at 83% compared to February's 86%. For more details on February weather, you can check Dublin weather in February.
In comparing the weather of May and March, May tends to be milder with a minimum temperature of 0°C (32°F) and an average of 11°C (52°F), peaking at a comfortable 21°C (71°F). In contrast, March is notably chillier, with a minimum temperature of -5°C (24°F) and an average of 7°C (44°F), reaching a maximum of 16°C (61°F). Precipitation levels are somewhat similar, with May recording 72 mm (2.8 in) over 14 days, while March has slightly higher precipitation at 81 mm (3.2 in) across 15 days. Furthermore, both months experience high humidity, with May at 83% and March slightly higher at 86%. For more specific details on March weather, you can check Dublin weather in March.
In comparing the weather between April and May, we observe a notable warming trend as spring progresses. May boasts a minimum temperature of 0°C (32°F) and an average of 11°C (52°F), reaching a maximum of 21°C (71°F), while April’s temperatures range from a minimum of -2°C (29°F) to a maximum of 19°C (66°F), with an average of 8°C (47°F). Although May experiences slightly more precipitation at 72 mm (2.8 in) over 14 days compared to April's 52 mm (2.0 in) over 11 days, the humidity remains relatively stable, hovering around 83% in May and 85% in April. For a detailed look at April's conditions, check out Dublin weather in April.
In comparing the weather of May and June, May tends to be cooler, with average temperatures ranging from a minimum of 0°C (32°F) to a maximum of 21°C (71°F). It experiences a total precipitation of 72 mm (2.8 in) over approximately 14 days and a humidity level of 83%. In contrast, June sees warmer temperatures, with a minimum of 6°C (42°F) and a maximum reaching 24°C (75°F). Although it has slightly higher precipitation at 75 mm (3.0 in) over about 15 days, the humidity rises to 85%. For more detailed information, you can check Dublin weather in June.
In comparing the weather from May to July, we can observe a notable rise in temperatures. May's temperatures range from a chilly minimum of 0°C (32°F) to a comfortable maximum of 21°C (71°F), averaging around 11°C (52°F). In contrast, July boasts milder temperatures, with a minimum of 8°C (46°F) and a maximum of 25°C (77°F), averaging 16°C (60°F). Despite slight increases in precipitation—from 72 mm (2.8 in) in May to 80 mm (3.2 in) in July—both months experience rainfall on approximately 14 days and only a marginal uptick in humidity. For those looking to explore what July has to offer, you can find more details here: Dublin weather in July.
May and August present distinct weather experiences, with May offering cooler temperatures, averaging 11°C (52°F) and peaking at 21°C (71°F), while August sees slightly warmer averages at 15°C (60°F) and a maximum of 23°C (73°F). Both months have high humidity levels, with May at 83% and August slightly higher at 85%. Precipitation is more prevalent in August, with 95 mm (3.8 in) over 16 days compared to May’s 72 mm (2.8 in) across 14 days. For more details on the conditions in August, check out Dublin weather in August.
May and September in Dublin exhibit similar weather patterns, yet they possess unique characteristics. In May, temperatures range from a chilly 0°C (32°F) to a comfortable 21°C (71°F), with an average of 11°C (52°F) and a relative humidity of 83%. The month experiences around 72 mm (2.8 in) of precipitation across 14 days, indicating a somewhat wet spring. In contrast, September sees slightly warmer temperatures, with a minimum of 3°C (38°F) and a maximum of 22°C (72°F), averaging 13°C (56°F). While the precipitation is similar at 73 mm (2.9 in) over the same number of rainy days, the humidity increases slightly to 86%. Despite these modest differences, both months reflect Dublin's characteristic changeable weather. For more details, check out Dublin weather in September.
In May, temperatures start to warm up, ranging from a minimum of 0°C (32°F) to a maximum of 21°C (71°F), with an average of 11°C (52°F). The month experiences about 72 mm (2.8 in) of precipitation over 14 days, accompanied by a humidity level of 83%. In contrast, October sees slightly cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 18°C (65°F), while the average remains the same at 11°C (51°F). Precipitation increases to 87 mm (3.4 in) over the same number of days, and humidity rises to 87%. For more insights into October's weather specifics, you can visit Dublin weather in October.
In May, temperatures range from a chilly 0°C (32°F) at night to a pleasant maximum of 21°C (71°F) during the day, with an average of 11°C (52°F). The month sees approximately 72 mm (2.8 in) of precipitation spread over 14 days, and relative humidity hovers around 83%. In contrast, November brings cooler conditions, with temperatures dropping to a minimum of 0°C (32°F) and a maximum of 15°C (59°F), leading to an average temperature of 8°C (46°F). The month is wetter, experiencing around 97 mm (3.8 in) of precipitation also over 14 days, accompanied by slightly higher humidity at 86%. For more details, you can check out Dublin weather in November.
May and December in Dublin present quite contrasting weather patterns. In May, temperatures range from a chilly 0°C (32°F) at night to a pleasant 21°C (71°F) during the day, contributing to an average temperature of 11°C (52°F). The month sees around 72 mm (2.8 in) of precipitation over about 14 days, with humidity levels at 83%.
In contrast, December brings cooler temperatures, with a minimum of -2°C (28°F) and a maximum of 13°C (56°F), averaging 6°C (44°F). Precipitation increases to 94 mm (3.7 in), occurring over 15 days, and humidity rises slightly to 84%. For more detailed information, you can check the Dublin weather in December.
As May blooms in Dublin, the weather brings a refreshing transition that sets it apart from the chillier months. With average temperatures rising to a mild 11°C (52°F) and reaching a maximum of 21°C (71°F), the city begins to awaken from its winter slumber. However, humidity levels hover around 83%, and with 14 days of precipitation totaling 72 mm (2.8 in), May can still keep visitors on their toes. This mix of warmth and showers creates a vibrant atmosphere, making it an ideal time to explore Dublin's lush parks and historic streets. For a deeper dive into what to expect throughout the year, check out Dublin Climate.