Last updated: March 17, 2025
In August, Donegal, Ireland, experiences varying weather conditions that create a unique summer ambiance. The maximum temperature reaches a pleasant 23°C (73°F), while the average temperature hovers around 14°C (58°F), providing a mild climate. However, mornings can be crisp, with a minimum temperature of 5°C (41°F). This month is characterized by considerable moisture, as precipitation accumulates to about 164 mm (6.5 in) over approximately 22 rainy days, resulting in a humidity level of 86%. Such weather patterns make August in Donegal both refreshing and somewhat unpredictable, offering travelers an intriguing blend of sun and rain.
In August, Donegal, Ireland, experiences a delightful transition towards warmer temperatures, characterized by a minimum of 5°C (41°F) and a pleasant average of 14°C (58°F). The region sees maximum highs reaching 23°C (73°F), marking it as one of the warmest months of the year. This slight uptick in warmth from July's conditions fosters a vibrant atmosphere, perfect for outdoor activities and exploration. As summer starts to wane, the weather remains inviting, showcasing a gentle decline in temperature as it gears up for the cooler autumn months ahead. Overall, August stands out, reflecting the gradual ascent of warmth that begins in spring, reaching a peak just before the shift into the crisper fall season.
August stands out as the wettest month in Donegal, Ireland, with an impressive 164 mm (6.5 in) of precipitation, significantly higher than the monthly average. This surge in rainfall is accompanied by an increase in precipitation days, totaling 22, marking it as a peak time for wet weather. As summer transitions into autumn, this trend of heightened moisture contrasts sharply with the drier spells of April and May, which see far less rain and fewer wet days. This pattern suggests that August serves as a culmination of the summer's rain, embracing the lush greenery that characterizes Donegal's landscape while setting the stage for the more temperate, but still rainy, months ahead.
In August, Donegal’s humidity remains high at 86%, a continuation of the trend observed since July. This level of humidity is characteristic of the late summer months in the region, creating a lush, vibrant landscape. The moist air lingers into early fall, with September and October showing a slight increase to 87%, reflecting the gradual transition to autumn. Interestingly, humidity levels in Donegal tend to stabilize around 84% during the spring months, before stirring up again in the height of summer. As the year progresses, the overall trend reveals a gradual rise in humidity, peaking in late autumn, which keeps the coastal air fresh and invigorating throughout the seasons.
In Donegal, Ireland, the August UV Index stands at a high 7, indicating an increased risk of harm from unprotected sun exposure, with a burn time of just 25 minutes for fair-skinned individuals. This marks a slight dip from the very high levels recorded in June and July, which both registered at 8, where protective measures were essential in as little as 15 minutes. Throughout the year, the UV Index trends show a gradual rise from low levels in winter to peaks during the warmer months, reflecting the seasonal sun intensity. As we transition into early autumn, the Index gradually decreases to moderate levels of around 5. Staying informed about the UV Index is crucial for enjoying the outdoors safely; for more details, visit the Donegal UV Index.
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August in Donegal, Ireland, offers a delightful respite from the dreary days of winter, boasting 323 hours of sunshine. The month experiences a gradual decline in daylight hours as summer transitions into autumn, following a peak in late spring with 385 hours of sunshine in May. Following the highs of June and July, August’s sunshine, while still substantial, signals the start of shorter days, aligning with the annual trend observed throughout the year. As the sunshine hours gently dip into September's 270 hours, the charm of Donegal's late summer remains a cherished memory of light before the long, dim months of winter set in.
As August rolls into Donegal, the likelihood of experiencing sunny weather remains relatively modest, with only a 16% chance of sunshine. This figure reflects a consistent trend seen throughout the summer months, where the chances of a bright day diminish from the previous months of April and May, which boast 35% and 29% respectively. The sunshine percentage dips slightly more in July, falling to 20%, before leveling off in August. These statistics illustrate the challenges faced in securing sunny skies in Donegal during summer, highlighting the rugged beauty of the region that often prevails despite the clouds.
In Donegal, Ireland, the month of August offers a generous 14 hours of daylight, signaling the tail end of the summer season. This duration reflects a slight decline from the peak of 17 hours in June, showcasing a trend where longer days gradually fade as autumn approaches. Following the vibrant energy of summer, August still provides ample time for outdoor adventures and enjoyment of the natural beauty. As daylight begins to wane heading into September with 12 hours, the transition reminds us of the cyclical nature of the seasons, creating a beautiful balance between warmth and the crisp promise of fall.
In August, Donegal experiences a gentle breeze with an average wind speed of 3.1 m/s (7 mph), creating a tranquil atmosphere perfect for enjoying the lush landscapes. Throughout the year, wind speeds tend to fluctuate, reaching their peak in February at 5.6 m/s (13 mph) and showing a noticeable dip during the summer months, particularly in July when winds are at their calmest. As autumn approaches, wind speeds gradually rise again, hinting at the invigorating changes that the season brings. This pattern indicates that while August is relatively mild, the promise of brisker winds in the subsequent months adds a dynamic touch to the scenic beauty of Donegal.
The weather in Donegal 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 Donegal and find detailed weather information for every month.
August and January exhibit stark differences in weather conditions. August is noticeably warmer, with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F), compared to January’s cooler averages of -5°C (24°F) to 13°C (56°F). Additionally, August experiences significantly more precipitation, totaling 164 mm (6.5 in) over 22 days, while January sees only 95 mm (3.7 in) across 16 days. Humidity levels remain quite high in both months, with August at 86% and January at 84%, creating a humid atmosphere in summer and a chilly one in winter. For more detailed weather specifics, visit Donegal weather in January.
In comparison, August typically brings milder temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F), offering an average of 14°C (58°F). This month experiences significant rainfall, with 164 mm (6.5 in) of precipitation over approximately 22 days, alongside high humidity levels averaging 86%. In contrast, February is much colder, with temperatures dipping as low as -5°C (23°F) and reaching a maximum of 14°C (58°F), showing an average of 5°C (42°F). Precipitation is slightly lower at 142 mm (5.6 in) across 17 days, with humidity levels around 84%. For more detailed information, you can check Donegal weather in February.
When comparing the weather in August to that in March, there are notable differences in temperature and precipitation. August enjoys milder conditions, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F) and an average of 14°C (58°F). In contrast, March experiences cooler temperatures, with a minimum of -5°C (24°F) and a maximum of 17°C (62°F), averaging around 6°C (43°F). While both months see considerable rainfall, August records 164 mm (6.5 in) over 22 days, compared to March's 128 mm (5.0 in) over 18 days. The humidity levels are also relatively high in both months, with August at 86% and March at 83%. For a more detailed look at March weather specifically, you can visit Donegal weather in March.
In comparing the weather between August and April, August tends to be significantly warmer, with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F). In contrast, April starts off cooler, with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 20°C (69°F). Additionally, August experiences heavier rainfall, accumulating about 164 mm (6.5 in) over approximately 22 days, whereas April sees much less precipitation at 65 mm (2.6 in) over 14 days. Both months exhibit high humidity levels, with August reaching 86% and April slightly lower at 84%. For more detailed information, you can visit Donegal weather in April.
In comparing the weather of August and May, August tends to be warmer, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F), while May experiences slightly cooler conditions, with temperatures ranging from -1°C (30°F) to a maximum of 25°C (77°F). August is considerably wetter, receiving 164 mm (6.5 in) of precipitation over 22 days, compared to May's 85 mm (3.4 in) over 14 days. Despite the higher temperatures in May, the humidity levels are relatively similar, with August averaging 86% and May at 83%. For a more detailed overview of May's weather, you can refer to Donegal weather in May.
When comparing the weather in August and June, both months exhibit mild temperatures, with August having a slightly higher average temperature of 14°C (58°F) compared to June's 13°C (56°F). August sees temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F), while June has a minimum of 4°C (40°F) and can reach up to 27°C (82°F). Interestingly, August experiences more precipitation, with 164 mm (6.5 in) over 22 days, while June has 114 mm (4.5 in) over 17 days. Despite the slightly higher humidity in August at 86% compared to June's 83%, both months are characterized by their relatively damp weather. For a detailed look at June weather in Donegal, you can visit Donegal weather in June.
August typically sees slightly cooler temperatures compared to July, with minimums around 5°C (41°F) and maximums peaking at 23°C (73°F), while July ranges from 6°C (44°F) to 27°C (81°F). Precipitation is notably higher in August, totaling 164 mm (6.5 in) over 22 days, compared to July's 108 mm (4.2 in) across 17 days. Both months share similar humidity levels at 86%, but August tends to be wetter overall. For a closer look at July's weather specifics, check out Donegal weather in July.
In comparing the weather between August and September, August tends to be slightly warmer, with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F). In contrast, September sees a drop in average temperature, with nighttime lows of 2°C (36°F) and daytime highs reaching 24°C (76°F). Additionally, August experiences more precipitation, totaling 164 mm (6.5 in) over 22 days, compared to September's 112 mm (4.4 in) over 18 days. Humidity levels remain relatively high in both months, with August at 86% and September at 87%. For more detailed insights about conditions in September, you can visit Donegal weather in September.
August and October exhibit contrasting weather patterns, with August being notably warmer and more humid. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 23°C (73°F), with an average of 14°C (58°F). In contrast, October sees cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 19°C (67°F), averaging around 10°C (50°F). While both months experience considerable rainfall, October's precipitation (139 mm or 5.5 in) is slightly lower than August's (164 mm or 6.5 in), although both months see rain on a similar number of days, around 20-22 days. Humidity remains high in both months, with October being marginally more humid at 87%. For a detailed look at the weather in October, check out Donegal weather in October.
In comparison to August, November experiences notably cooler temperatures, with averages dropping from 14°C (58°F) in August to just 7°C (45°F). While August brings a maximum of 23°C (73°F), November typically peaks at 15°C (58°F), reflecting a significant shift towards winter conditions. Precipitation is slightly lower in November at 116 mm (4.6 in) over 20 days, compared to August's 164 mm (6.5 in) over 22 days. Humidity remains high in both months, with November at 88% and August at 86%, contributing to a damp atmosphere. For more information on weather specifics, you can check Donegal weather in November.
August and December showcase contrasting weather patterns, reflective of the changing seasons. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 23°C (73°F), with an average of 14°C (58°F). The month sees significant precipitation, totaling 164 mm (6.5 in) over 22 days, accompanied by high humidity levels at 86%. In comparison, December brings colder conditions, with temperatures dipping to a minimum of -2°C (28°F) and reaching a maximum of 13°C (55°F), averaging around 6°C (43°F). While December features slightly lower precipitation at 131 mm (5.2 in) over 21 days, humidity levels remain relatively high at 84%. For more detailed insights on December weather, you can visit Donegal weather in December.
In August, Donegal experiences a notable shift in its weather, marked by warmer temperatures and increased humidity compared to the preceding summer months. Although the maximum can reach a pleasant 23°C (73°F), the overall average hovers around a comfortable 14°C (58°F). However, this period also brings its share of rain, with 22 days of precipitation contributing to a total of 164 mm (6.5 in), making it one of the wetter months in the region. The high humidity of 86% adds a distinct feeling to the air, contrasting sharply with the dryer conditions of late spring. For a more detailed look at the climatic patterns throughout the year, check out Donegal Climate.