Last updated: March 17, 2025
August in Portmarnock, Ireland presents a delightful blend of weather patterns, showcasing a maximum temperature reaching up to 23°C (74°F) and an average of 16°C (61°F). While the days may bask in warmth, the nights cool down to a refreshing 8°C (47°F). This month sees approximately 95 mm (3.7 in) of rainfall spread across 16 days, resulting in a humidity level of 85%, lending a lush vibrancy to the coastal landscape. Whether you're exploring the scenic shorelines or enjoying local festivities, the varied weather adds a unique charm to Portmarnock in August.
In August, Portmarnock enjoys mild and pleasantly warm temperatures, with maximum highs reaching around 23°C (74°F). The month typically starts with minima around 8°C (47°F), providing a comfortable start to the day. The average temperature hovers around 16°C (61°F), striking a perfect balance for outdoor activities. Compared to the earlier summer months, August sees a slight dip from July's peak warmth but remains inviting, making it an ideal time for beach outings and exploring the scenic coastline. As the summer begins to wind down, the mild weather of August serves as a gentle reminder of the beauty and charm that Portmarnock holds before the cooler autumn months arrive.
In August, Portmarnock experiences one of its wettest months, with an impressive 95 mm (3.7 in) of precipitation spread over 16 days. This uptick in rainfall marks a noticeable rise compared to the precipitation amounts in previous months, such as July's 73 mm and June's 69 mm. The increase not only highlights August as a particularly soggy period but also sets the stage for the impending autumn, as the transition from summer brings about more frequent showers. As the year progresses, the trend in Portmarnock suggests a gradual elevation in precipitation, especially noticeable as the dampness of November (93 mm) approaches, further emphasizing the region's characteristic variability in summer to autumn weather.
In August, Portmarnock, Ireland, experiences a consistent humidity level of 85%, aligning closely with the slightly more humid months of April and May. Throughout the year, humidity tends to hover between 83% and 87%, creating a noteworthy atmosphere that contributes to the region's lush landscapes. This stability in humidity levels suggests that while summer brings warmth, the coastal breezes help maintain a comfortable environment, making August an inviting time to enjoy the scenic beauty of Portmarnock. As the year progresses, a slight uptick in humidity is observed in the fall and winter months, signaling the transition to more moisture-laden weather. Overall, Portmarnock's humidity offers a unique backdrop for both residents and visitors alike.
In August, Portmarnock experiences a UV Index of 7, indicating a high exposure category and a burn time of 25 minutes. This trend reflects a slight decrease from the very high levels seen in both June and July, where the UV Index peaked at 8. As summer reaches its climax, it's essential for residents and visitors to be mindful of sun exposure during this month to prevent skin damage. Post-August, the UV Index will gradually diminish, moving towards moderate levels in September. For more detailed insights, check the comprehensive guide at Portmarnock UV Index.
UV Risk Categories
In August, Portmarnock basks in the warmth of summer with a generous 329 hours of sunshine, marking it as one of the sunniest months of the year. This vibrant contribution follows a peak in May, where sunlight reaches its zenith at 385 hours, hinting at a gradual decline throughout the summer. As the season transitions into September, sunshine hours dip to 288, suggesting a gentle farewell to summer's embrace. The trend clearly illustrates that while August shines brightly, the sweetest moments of daylight are often encountered in the month just before, creating a perfect blend of lingering summer warmth and the approach of autumn's cozy charm.
In Portmarnock, Ireland, the likelihood of sunny weather shows a marked variance throughout the year, with August returning a modest 23% chance of sun. This figure aligns closely with the preceding months, particularly July at 30%, hinting at a slight decline as summer wanes. Notably, April stands out with a peak of 44%, suggesting that while late spring offers a more inviting forecast, summer's warmth doesn't guarantee prolonged sunshine. As the year transitions into autumn, September and October dip further to 21% and 20% respectively, indicating that if you're hoping for sunny August days in Portmarnock, it's wise to embrace both the charm and unpredictability of Irish weather.
In Portmarnock, Ireland, August marks the tail end of a sun-drenched summer, basking in about 14 hours of daylight. This month showcases a gradual decline from the peak summer brightness of 16 hours in June and July, signaling a transition towards the shorter days of autumn. As autumn approaches, daylight diminishes steadily, with September bringing 12 hours before giving way to the more shadowy months ahead. This ebb and flow of daylight not only highlights the beauty of seasonal change in Portmarnock but also encourages residents and visitors alike to savor the lingering warmth before the shorter, cozier days of fall settle in.
In August, the average wind speed in Portmarnock, Ireland, hovers around 3.6 m/s (8 mph), slightly above the calm of July, which experiences the lowest winds of the year at 2.8 m/s (6 mph). This gentle breeze marks a transition from the summer's stillness towards the cooler, more blustery days of autumn, as September and October both feature steady winds of 3.5 m/s (8 mph) and 4.8 m/s (11 mph), respectively. Notably, the wind speeds from August exhibit a moderate increase compared to the earlier summer months, indicating a shift that hints at the changing seasons. As the year progresses, the winds begin to pick up further, with November bringing an average of 4.9 m/s (11 mph), suggesting that Portmarnock is ready to embrace the more dynamic weather patterns characteristic of late autumn.
The weather in Portmarnock changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August'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.
The weather in August and January presents a stark contrast, with August offering milder temperatures ranging from a minimum of 8°C (47°F) to a maximum of 23°C (74°F) and an average of 16°C (61°F). In contrast, January experiences much colder conditions, with temperatures ranging from a chilling minimum of -3°C (27°F) to a maximum of 14°C (58°F) and an average of 6°C (43°F). While August sees more precipitation at 95 mm (3.7 in) over approximately 16 days, January has less rainfall, totaling 53 mm (2.1 in) over about 10 days. Interestingly, both months experience similar humidity levels at 85%. For a more detailed look at the weather during this time, check out Portmarnock weather in January.
In comparing the weather of August and February, notable differences emerge. August tends to be milder, with a minimum temperature of 8°C (47°F) and an average high of 23°C (74°F), whereas February is chillier, experiencing minimums as low as -2°C (29°F) and an average high of only 15°C (58°F). Precipitation is slightly more prevalent in August, with 95 mm (3.7 in) of rain over 16 days, compared to February's 73 mm (2.9 in) over 14 days. Both months exhibit high humidity, hovering around 85% in August and slightly higher at 86% in February. For more details, you can check out Portmarnock weather in February.
August and March exhibit contrasting weather patterns. In August, temperatures range from a minimum of 8°C (47°F) to a maximum of 23°C (74°F), with an average of 16°C (61°F). The month experiences more rainfall, totaling 95 mm (3.7 in) over 16 days, and maintains a high humidity level of 85%. Conversely, March is cooler, with temperatures spanning from a chilly -3°C (26°F) to a milder 16°C (62°F), averaging around 7°C (45°F). It also sees less precipitation at 73 mm (2.9 in) over 14 days, while humidity is slightly higher at 86%. For more detailed weather insights, you can check Portmarnock weather in March.
When comparing the weather in August and April, one can observe notable differences. August boasts a milder temperature range with averages around 16°C (61°F) and highs reaching up to 23°C (74°F), while April has cooler temperatures, with an average of 9°C (48°F) and maximums of 19°C (67°F). Additionally, August experiences significantly more precipitation, totaling 95 mm (3.7 in) over 16 days, compared to April's 44 mm (1.7 in) over just 11 days. Despite the higher temperatures, both months share the same humidity level at 85%. For more details specific to April, you can check out Portmarnock weather in April.
When comparing the weather in August and May, August tends to be warmer with an average temperature of 16°C (61°F) compared to May's cooler average of 12°C (53°F). Both months experience similar maximum temperatures, with August peaking at 23°C (74°F) and May reaching 22°C (72°F). However, August sees more precipitation, with 95 mm (3.7 in) falling over 16 days, while May has only 62 mm (2.4 in) over 12 days. Humidity levels are relatively close, with August at 85% and May at 83%. For more localized details on May weather, you can check Portmarnock weather in May.
When comparing the weather in June and August, both months exhibit mild temperatures and high humidity levels, averaging around 85%. June tends to have slightly cooler temperatures, with a minimum of 7°C (44°F) and a maximum of 25°C (77°F), whereas August sees a small rise, with minimum temperatures of 8°C (47°F) and a maximum of 23°C (74°F). Precipitation is also notable, as August experiences more rainfall, totaling 95 mm (3.7 in) over 16 days compared to June's 69 mm (2.7 in) across 13 days. For more detailed information on June's weather, you can visit Portmarnock weather in June.
When comparing the weather in August and July, we can see some notable differences. Both months have a similar minimum temperature of 8°C (47°F) and average temperatures hover around 16°C (61°F) to 16°C (62°F). However, July enjoys warmer maximum temperatures, reaching up to 27°C (80°F), compared to August's high of 23°C (74°F).
In terms of precipitation, August is wetter, with 95 mm (3.7 inches) of rainfall over 16 days, while July experiences 73 mm (2.9 inches) over just 12 days. Humidity levels are quite similar, with August at 85% and July slightly higher at 86%. Overall, August brings cooler temperatures and more rain, making it feel a bit more humid and damp compared to the warmer and drier conditions of July. For more detailed information, you can check out Portmarnock weather in July.
August generally experiences warmer temperatures compared to September, with average highs of 23°C (74°F) falling to 22°C (72°F) in September. The minimum temperatures in August start at 8°C (47°F), while September sees cooler nights, dipping to a low of 4°C (39°F). In terms of precipitation, August is wetter, accumulating 95 mm (3.7 in) over 16 days, while September has less rain at 70 mm (2.7 in) across 13 days. Humidity levels are slightly higher in September at 86%, compared to 85% in August. For a detailed look at weather trends in September, visit Portmarnock weather in September.
The weather in August and October shows a distinct transition as summer gives way to autumn. In August, temperatures range from a minimum of 8°C (47°F) to a maximum of 23°C (74°F), with an average of 16°C (61°F). The month experiences significant precipitation, totaling 95 mm (3.7 in) over 16 days, accompanied by a humidity level of 85%. In contrast, October sees a notable drop in temperatures, with averages dipping to 11°C (53°F) and a maximum of 19°C (67°F). The month has a lower total precipitation of 79 mm (3.1 in) spread over 13 days, and a slightly higher humidity of 87%. For more detailed insights about the October climate in this region, you can refer to Portmarnock weather in October.
In August, the weather features a mild temperature range with a minimum of 8°C (47°F), an average of 16°C (61°F), and a maximum of 23°C (74°F). This month sees significant precipitation, totaling 95 mm (3.7 in) over 16 days, and the humidity remains high at 85%. In contrast, November experiences cooler temperatures, with a minimum of -1°C (31°F), an average of 8°C (48°F), and a maximum of 15°C (60°F). The rainfall is slightly lower at 93 mm (3.6 in) over 14 days, and humidity increases to 86%. For more detailed information on the weather conditions in November, you can visit Portmarnock weather in November.
August and December present contrasting weather patterns, showcasing the transition from summer warmth to winter chill. In August, temperatures range from a mild minimum of 8°C (47°F) to a pleasant maximum of 23°C (74°F), typically enjoying an average of 16°C (61°F). The month also experiences substantial rainfall, with 95 mm (3.7 in) spread across 16 days, and a high humidity level of 85%.
In contrast, December brings a notable drop in temperatures, with lows around -2°C (30°F) and highs peaking at 13°C (56°F), averaging just 7°C (45°F). Precipitation remains similar, totaling 85 mm (3.4 in) over 14 days, with a slightly lower humidity of 84%. This shift highlights the cooler, wetter conditions typical of winter, as documented in more detail at Portmarnock weather in December.
In August, Portmarnock experiences a unique blend of summer warmth and coastal humidity, with temperatures generally peaking higher than in the earlier months and offering a pleasant respite before autumn sets in. While the charm of summer lingers, it’s also the wettest time of the season, with light rain making a frequent appearance throughout the month. With an average humidity of 85%, the air can feel a bit more intense, highlighting the contrast to the drier, cooler months that follow. If you're planning to visit or simply wish to know more about the nuances of Portmarnock's climate, check out Portmarnock Climate for a comprehensive overview.