Last updated: March 17, 2025
Killybegs, Ireland in September offers a mild coastal climate that can be both invigorating and unpredictable. With maximum temperatures reaching up to 22°C (73°F) and an average of 13°C (56°F), visitors can enjoy relatively comfortable days. However, be prepared for cooler nights, as temperatures can dip to a minimum of 5°C (41°F). The month is characterized by frequent rainfall, with an impressive 131 mm (5.2 in) spread over 21 days, resulting in a humidity level of 87%. These conditions contribute to Killybegs’ lush landscapes, making it a picturesque destination for travelers willing to embrace the elements.
As September rolls into Killybegs, Ireland, temperatures begin to reveal the transition from the warmth of summer to the cool embrace of autumn. With minimums around 5°C (41°F) and averages settling at 13°C (56°F), the early days still carry a hint of summer’s lingering warmth. The maximum temperatures can reach up to 22°C (73°F), making it one of the milder months as the year draws to a close. This shift is marked by a gradual dip in nighttime temperatures, signaling the approach of cooler days ahead. As Killybegs embraces September, it's a delightful time to experience the rich tapestry of autumn hues amidst the backdrop of the stunning Irish coastline.
September in Killybegs, Ireland, marks a turning point in the year’s precipitation patterns, delivering 131 mm (5.2 in) of rainfall over 21 days. This amount is slightly above the April and May totals but considerably less than the preceding August, which experienced a hefty 170 mm (6.7 in) of rain across 22 days. The trend indicates a typical late-summer shift, as the days become shorter and temperatures begin to cool, leading to an increase in rainy days. As the month progresses, Killybegs braces for the typically wetter months ahead, with October expected to bring even more rain, reflecting the region's lush and dynamic climate.
As summer transitions into autumn, September in Killybegs, Ireland, brings a noticeable increase in humidity, peaking at 87%. This marks a shift from the already high levels experienced in the peak months of July and August, which averaged 86%. The gentle rise in humidity during September signals the onset of the wetter season ahead, with the closer months of October and November also maintaining elevated humidity levels at 87% and 88%, respectively. This steady trend underscores Killybegs' reputation for a damp climate, setting the stage for the lush greenery that characterizes the region. As the year progresses, the humidity remains consistent, providing a vivid reminder of Ireland's oceanic influence and the charm of its coastal landscapes.
As September rolls into Killybegs, Ireland, the UV Index reflects a transition from summer's peak to autumn's gentle embrace. With a moderate UV Index of 5, the exposure category indicates a need for caution, especially during midday hours. This marks a slight decline from the high summer values of 8, observed in both June and July, where a mere 15 minutes of sun could lead to skin damage. As the days shorten, the burn time increases back to 30 minutes this month, aligning with the lower September sun. This trend highlights the importance of staying sun-safe and adjusting outdoor plans to maximize enjoyment while minimizing risk. For detailed insights on Killybegs' UV Index throughout the year, visit Killybegs UV Index.
UV Risk Categories
September in Killybegs, Ireland, offers a delightful farewell to summer, with an impressive 268 hours of sunshine basking the charming coastal town. As the days gradually shorten, you can still revel in the vibrant warmth that lingers from the sun-soaked months of May through July, which boast the peak sunshine hours. The trend of decreasing daylight becomes apparent as October approaches, leading to a sharp decline in sun exposure during the later months of the year. Yet, September stands out as a wonderful transition, where cool breezes meet golden rays, inviting both locals and visitors to embrace the stunning coastal scenery and the gentle charm of the changing season.
In Killybegs, Ireland, September typically sees a 16% chance of sunny weather, a continuation of the generally overcast trend observed through the summer months. While other times of the year, such as April and May, boast higher probabilities of sunshine—38% and 35% respectively—September's relatively low likelihood indicates the lingering effects of the late summer's cloud cover. As the year progresses into autumn, Killybegs maintains a consistent trend of limited sunny days, with the percentage of sunshine remaining stable at 16% through October and November. This pattern highlights the region's characteristic unpredictability and underscores the importance of planning for varied weather conditions during this transitional month.
As September unfolds in Killybegs, Ireland, daylight begins to wane, offering a gentle transition from the vibrant summer months. With 12 hours of daylight, September marks a notable dip from the sun-drenched days of June, which boasts an impressive 17 hours. This decrease in light serves as a precursor to autumn, following a pattern of gradually reducing daylight that began in late summer. While the warmth lingers into the early weeks of September, the shift signals a time for reflection and preparation as the lush landscapes transition from the vibrancy of summer to the softer tones of autumn. As the month progresses, the charm of Killybegs shines through, even as the 10 hours of daylight in October looms on the horizon.
In September, the winds in Killybegs, Ireland, begin to shift, offering a gentle breeze with an average speed of 4.7 m/s (10 mph). This marks a slight uptick from the calmer days of July and August, where the winds dipped to their seasonal lows at 3.1 m/s (7 mph) and 4.1 m/s (9 mph), respectively. As the year transitions into autumn, the wind speed steadily increases, anticipating the more robust gusts of October and November, which reach 6.2 m/s (14 mph) and 6.9 m/s (16 mph). This pattern of rising winds suggests a dynamic change in the atmosphere, prompting the local landscape to brace for the invigorating forces of the upcoming season.
The weather in Killybegs changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Killybegs and find detailed weather information for every month.
September and January exhibit distinct differences in weather patterns. In September, temperatures range from a mild 5°C (41°F) at night to a pleasant maximum of 22°C (73°F) during the day, with an average of 13°C (56°F). The month is characterized by significant rainfall, totaling 131 mm (5.2 in) across 21 days, and a high humidity level of 87%. In contrast, January presents a colder climate, with temperatures dipping as low as -1°C (30°F) at night and peaking at 14°C (57°F), averaging around 6°C (44°F). January experiences slightly less rainfall, with 112 mm (4.4 in) over 18 days, and a slightly lower humidity of 84%. For a more detailed look at January weather, you can visit Killybegs weather in January.
In September, the weather generally features milder temperatures, with minimums around 5°C (41°F) and maximums reaching up to 22°C (73°F), resulting in an average of 13°C (56°F). This month sees significant rainfall, totaling 131 mm (5.2 in) over 21 days, and the humidity levels are quite high at 87%.
In contrast, February is noticeably colder, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 14°C (58°F), averaging at 6°C (43°F). Despite having more rainfall at 148 mm (5.8 in), February experiences precipitation on just 18 days, and the humidity is slightly lower at 84%. For a closer look at February's weather conditions, check out Killybegs weather in February.
September and March present distinctly different weather patterns. In September, temperatures range from a minimum of 5°C (41°F) to a maximum of 22°C (73°F), averaging around 13°C (56°F). The month experiences considerable rainfall, with about 131 mm (5.2 in) falling over 21 days and humidity hovering at a high 87%. In contrast, March has colder temperatures, with a minimum of -3°C (27°F) and a maximum of 16°C (61°F), averaging 7°C (44°F). Precipitation levels are slightly lower at 129 mm (5.1 in) across 19 days, and humidity is marginally lower at 83%. For more detailed weather information in March, check Killybegs weather in March.
When comparing the weather in September and April, notable differences in temperature and precipitation emerge. September enjoys a warmer average temperature of 13°C (56°F), with highs reaching up to 22°C (73°F) and a relatively high humidity level of 87%. In contrast, April is cooler, with an average temperature of 9°C (48°F) and maximums around 19°C (67°F). Additionally, while September sees significant rainfall, with 131 mm (5.2 in) spread across 21 days, April experiences less precipitation at 63 mm (2.5 in) over 15 days. For more detailed insights, you can check Killybegs weather in April.
In comparing the weather between September and May, we see several notable differences. September boasts a wider temperature range, with minimums of 5°C and maximums reaching up to 22°C, resulting in a comfortable average of 13°C. Conversely, May experiences slightly cooler temperatures overall, with minimums dropping to 2°C and an average of 11°C, although maximum temperatures can also reach 23°C.
Precipitation is a significant factor as well; September sees more rain, with 131 mm falling over 21 days, while May has less precipitation, with only 85 mm over 16 days. Humidity levels are relatively high in both months, but September is slightly more humid at 87% compared to May's 83%. For those interested in exploring specifics about May weather in this region, you can check out Killybegs weather in May.
In comparing the weather of September and June, both months exhibit a similar average temperature of 13°C (56°F), but June tends to be slightly warmer with a maximum temperature reaching 25°C (77°F), compared to September's highest of 22°C (73°F). While September experiences more precipitation with 131 mm (5.2 in) over 21 days, June sees a bit less rain at 113 mm (4.4 in) across 18 days. Additionally, September's humidity is higher at 87%, while June has a slightly lower humidity level of 83%. For a closer look at the specifics of June weather, you can visit Killybegs weather in June.
When comparing the weather between July and September, it is evident that September tends to be cooler and wetter. In July, temperatures range from a minimum of 9°C (49°F) to a maximum of 26°C (79°F), averaging around 15°C (59°F). In contrast, September sees a broader spread of temperatures, with a minimum of 5°C (41°F), an average of 13°C (56°F), and a maximum of 22°C (73°F). Although both months experience high humidity, September is slightly more humid at 87% compared to July's 86%. Furthermore, September has more precipitation overall, with 131 mm (5.2 in) over 21 days, while July's rainfall is slightly less at 115 mm (4.5 in) over 18 days. For a closer look at the weather specifics for July, you can visit Killybegs weather in July.
In comparing the weather of September and August, we see some notable differences. September tends to be slightly cooler, with minimum temperatures dropping to 5°C (41°F) compared to August's 8°C (47°F). The average temperature in September is also lower at 13°C (56°F), while August averages 15°C (58°F). Despite September's maximum temperature reaching 22°C (73°F), which is similar to August's 21°C (71°F), it experiences more rainy days, totaling 21 with 131 mm (5.2 in) of precipitation, compared to August's 22 days and 170 mm (6.7 in) of rainfall. Humidity remains relatively constant between the two months, with September slightly higher at 87% compared to 86% in August. For more details, check out Killybegs weather in August.
September and October both feature cool temperatures and high humidity, but October generally sees a noticeable drop in average temperatures and an increase in precipitation. In September, temperatures range from a minimum of 5°C (41°F) to a maximum of 22°C (73°F), while October's temperatures fall slightly lower, with a minimum of 3°C (37°F) and a maximum of 19°C (67°F). Additionally, October tends to be wetter, receiving 176 mm (6.9 in) of rain over 23 days compared to September's 131 mm (5.2 in) over 21 days. For more detailed weather information, you can check Killybegs weather in October.
In comparing the weather between September and November, notable differences emerge as the seasons transition. September boasts a milder average temperature of 13°C (56°F), with minimums and maximums ranging from 5°C (41°F) to 22°C (73°F). In contrast, November sees a drop in average temperatures to 8°C (47°F), with lows reaching 0°C (33°F) and highs peaking at 15°C (58°F). Precipitation levels are slightly higher in November, with 142 mm (5.6 in) occurring over 22 days, compared to 131 mm (5.2 in) over 21 days in September, while humidity remains consistently high in both months, at around 87% for September and 88% for November. For more details on the weather specifics in November, you can check Killybegs weather in November.
September and December present quite contrasting weather conditions. In September, temperatures range from a mild 5°C (41°F) at their lowest to a comfortable maximum of 22°C (73°F), with an average of 13°C (56°F). The month experiences significant rainfall, totaling 131 mm (5.2 inches) across 21 days, coupled with high humidity levels at 87%. In contrast, December features much cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 13°C (55°F), averaging 7°C (45°F). Precipitation increases slightly to 159 mm (6.3 inches) over 23 days, and humidity remains relatively high at 84%. For a more detailed look at Killybegs weather during December, check out Killybegs weather in December.
As September unfolds in Killybegs, the weather exhibits a gentle transition from the warmth of summer to the crispness of autumn. With maximum temperatures peaking at around 22°C, the month still holds onto pleasant days, though averages settle around a cooler 13°C. Rainfall becomes more frequent, with 21 days marked by precipitation, contributing to the high humidity levels of 87%. This blend of mild warmth and increased moisture sets September apart from the drier summer months, offering a unique experience in the charming coastal town. For a deeper understanding of the seasonal shifts and nuances, explore the detailed insights on Killybegs Climate.