Last updated: March 17, 2025
In September, Kinsale, Ireland, experiences a delightful blend of mild temperatures and a touch of unpredictability in the weather. With a maximum temperature reaching 21°C (70°F) and an average of 14°C (58°F), visitors can enjoy comfortable days. However, the evenings can be cool, dipping to a minimum of 7°C (45°F). Expect occasional rain, as the month sees 74 mm (2.9 in) of precipitation over approximately 13 days, resulting in a humidity level around 85%. This combination makes September a unique time to explore Kinsale’s scenic beauty, though packing a light raincoat is a wise choice!
As summer gracefully transitions into autumn, September in Kinsale, Ireland offers a pleasant blend of warmth and coolness. With temperatures ranging from a minimum of 7°C (45°F) to a comfortable maximum of 21°C (70°F), this month showcases a sweet spot for outdoor exploration. The average temperature settles around 14°C (58°F), reflecting the lingering warmth of summer while hinting at the crispness that autumn will bring. Compared to the warmer months of July and August, September retains a mild charm, inviting visitors to enjoy Kinsale's stunning landscapes and vibrant culture before the chill of winter sets in.
September in Kinsale, Ireland, showcases a modest average precipitation of 74 mm (2.9 in), falling over 13 days. This marks a continuation of the region's generally wet climate, yet it’s slightly less than the rainfall seen in the vibrant summer months of July and August. As autumn approaches, precipitation levels rise again, with October anticipating a significant increase to 112 mm (4.4 in). This trend indicates a gradual shift towards the wetter conditions typical of the later months, making September a transitional period where the lingering warmth of summer meets the cooler, rainier days ahead.
In Kinsale, Ireland, September brings a noticeable shift in humidity, maintaining a level of 85% that is characteristic of the late summer months. Throughout the year, humidity levels fluctuate slightly, with a peak observed in October at 86%. The transition from summer to autumn is marked by consistent humidity, which rarely drops below 83%. Notably, the steady humidity from June to September illustrates a climate that remains comfortably moist, ensuring that Kinsale retains its lush greenery. As the temperatures cool in the latter part of the year, the gradual increase hints at the rainy seasons ahead, creating an inviting landscape rich in natural beauty.
In September, Kinsale, Ireland experiences a moderate UV Index of 5, marking a gentle transition from the high summer exposure levels. As the days begin to shorten, the burn time extends slightly to 30 minutes, providing a balance between outdoor enjoyment and skin protection. This shift reflects a gradual decline in UV intensity from the peak values of 8 recorded in June and July, down to 7 in August. Thereafter, the UV Index is expected to drop further in the coming months, indicating a seasonal decrease in sunshine strength. It's a great time to take advantage of the milder sun while still being mindful of UV exposure; for more detailed information, visit Kinsale UV Index.
UV Risk Categories
September in Kinsale, Ireland, experiences a delightful blend of late-summer warmth, with an impressive 305 hours of sunshine. This marks a gracious transition from the sun-drenched peak of 407 hours in July, gradually softening as autumn approaches. The month’s sunny disposition is a fitting farewell to summer, contrasting sharply with the diminished daylight of October, which sees a drop to 240 hours. Following the vibrant energy of spring and summer, September offers a golden window for outdoor exploration, allowing locals and visitors alike to soak in the charm of Kinsale before the shorter days emerge. As the sun sets on another summer, the gentle light of September creates a captivating backdrop for this picturesque harbor town.
In Kinsale, Ireland, the likelihood of sunny weather in September tends to diminish as summer wanes, with only a 21% chance of sunshine gracing the region. This marks a notable decline from the more promising spring months, where April shines with a 47% chance of clear skies. As we transition from the warmth of summer—with August and July hovering around 30%—the onset of autumn brings about a noticeable drop in sunlit days. Thus, for those dreaming of basking in September's rays, it's wise to temper expectations, acknowledging that the golden days of summer are gradually receding.
In September, Kinsale, Ireland, enjoys about 12 hours of daylight, marking a gentle transition from the long, sun-drenched days of summer to the shorter, crisper days of autumn. As the year progresses, we see a clear trend: daylight hours peak in June and July at an impressive 16 hours, gradually decreasing as the season shifts. By September, the sun begins its descent, offering just enough light to savor the lingering warmth before winter sets in. This gradual reduction is a subtle reminder of the seasonal changes, with daylight dipping further to 10 hours in October and then to 8 hours by November, as the emerald landscape transforms into a tapestry of autumn hues.
As summer transitions to autumn, September in Kinsale, Ireland ushers in a gentle shift in wind patterns, with an average speed of 4.2 m/s (9 mph). This slight decline from the breezier months of July and August reflects the softening grip of summer, setting the stage for the more brisk and refreshing winds of fall. While February stands out as the windiest month with an invigorating 7.5 m/s (17 mph), September's milder gusts create a perfect backdrop for leisurely strolls along the scenic coastline. As the year progresses, winds tend to ramp up again in October, hinting at the seasonal turnaround, yet September offers a charming reprieve, inviting locals and visitors alike to embrace the serene beauty of the season.
The weather in Kinsale 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 Kinsale and find detailed weather information for every month.
September and January showcase distinct weather characteristics. In September, temperatures range from a cool 7°C (45°F) to a pleasant maximum of 21°C (70°F), with an average of 14°C (58°F). The month experiences considerable humidity at 85% and a total precipitation of 74 mm (2.9 in) over 13 days. In contrast, January brings colder conditions with temperatures peaking at 13°C (56°F) and dipping to 0°C (32°F), averaging around 7°C (46°F). This month sees slightly less rainfall, totaling 67 mm (2.6 in) over 11 days, and a marginally lower humidity level of 83%. For more details about January's weather, check out Kinsale weather in January.
When comparing the weather in September and February, notable differences emerge. September typically boasts a warmer temperature range, with minimums around 7°C (45°F), average highs of 21°C (70°F), and an overall average of 14°C (58°F). In contrast, February is much cooler, with minimum temperatures dropping to 0°C (33°F) and average highs of only 13°C (55°F). Precipitation levels also vary, with September receiving 74 mm (2.9 in) over 13 days, while February sees an increase in rainfall to 118 mm (4.6 in) across 17 days. Despite both months maintaining a consistent humidity level of 85%, February tends to feel wetter and chillier than the relatively mild September. For more detailed insights on February weather, you can visit Kinsale weather in February.
In comparing the weather between September and March, we observe distinct differences in temperature and precipitation. September typically enjoys milder conditions, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 21°C (70°F), while averaging 14°C (58°F). In contrast, March is considerably colder, with temperatures dropping to a minimum of -3°C (27°F) and peaking at only 13°C (56°F), averaging around 8°C (46°F). Precipitation levels are somewhat higher in March, with 91 mm (3.6 in) over 17 days, compared to September's 74 mm (2.9 in) spread out over 13 days. Both months feature high humidity, with September at 85% and March slightly lower at 84%. For more information about the weather in Kinsale during March, you can visit Kinsale weather in March.
In September, the weather tends to be milder with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 21°C (70°F), offering an average of 14°C (58°F). In contrast, April is cooler, with temperatures starting at a minimum of 1°C (34°F) and peaking at 14°C (58°F), resulting in a lower average of 9°C (49°F). Both months experience similar precipitation levels, with September recording 74 mm (2.9 in) over 13 days and April slightly less at 73 mm (2.9 in) over 11 days. Humidity remains high in both months, with September at 85% and April at 84%. For a more detailed look at April weather, check out Kinsale weather in April.
When comparing the weather in September and May, September tends to be slightly warmer overall. The average temperature in September is 14°C (58°F), with a maximum of 21°C (70°F), while in May, the average is cooler at 11°C (53°F) and a maximum of 19°C (67°F). Both months experience similar levels of precipitation, with September at 74 mm (2.9 in) across 13 days and May at 75 mm (3.0 in) over 12 days. Humidity remains comparable as well, with September slightly higher at 85% compared to May's 84%. For a detailed look at May weather, you can visit Kinsale weather in May.
In comparing the weather between September and June, both months exhibit similar average temperatures, hovering around 14°C (58°F), but September tends to be slightly cooler at night with a minimum of 7°C (45°F) compared to June's 8°C (46°F). June offers a slightly warmer maximum temperature, reaching up to 22°C (71°F) versus September's peak of 21°C (70°F). Additionally, September experiences more precipitation, with 74 mm (2.9 in) over 13 days, compared to June's 61 mm (2.4 in) across 11 days. The humidity remains consistent in both months at 85%, making them feel similarly damp. For more detailed insights, you can check out Kinsale weather in June.
When comparing the weather of September and July, several notable differences emerge. September generally experiences cooler temperatures, with a minimum of 7°C (45°F) and an average of 14°C (58°F), while July has slightly warmer temperatures ranging from a minimum of 10°C (51°F) and an average of 16°C (61°F). Precipitation levels are somewhat higher in September, accumulating to 74 mm (2.9 in) over approximately 13 days, compared to July's 61 mm (2.4 in) over 12 days. Both months share similar humidity levels at 85%, but the overall weather in July tends to be more stable and warmer, making it a popular choice for outdoor activities. For more details on July weather, you can visit Kinsale weather in July.
In comparing the weather between September and August, September tends to be cooler with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 21°C (70°F), whereas August starts with slightly warmer temperatures, having a minimum of 10°C (50°F) and peaking at 22°C (71°F). Interestingly, September experiences a slight increase in precipitation, totaling 74 mm (2.9 in) over 13 days compared to August's 88 mm (3.5 in) over 14 days. Humidity levels are quite similar, with September at 85% and August slightly lower at 84%. For more detailed information on the weather during August, visit Kinsale weather in August.
September typically enjoys milder temperatures with a minimum of 7°C (45°F) and an average of 14°C (58°F), peaking at 21°C (70°F). It experiences relatively moderate precipitation, totaling 74 mm (2.9 in) over 13 days, with humidity hovering around 85%. In contrast, October sees a slight drop in temperatures, with a minimum of 4°C (39°F) and an average of 12°C (54°F), reaching a maximum of 18°C (64°F). This month is also wetter, with 112 mm (4.4 in) of rainfall spread over 15 days, and humidity slightly rises to 86%. For more details, check out Kinsale weather in October.
In September, temperatures start to cool down, with a minimum of 7°C (45°F) and an average of 14°C (58°F), peaking at 21°C (70°F). The month sees moderate rainfall, with 74 mm (2.9 in) spread over 13 days and a humidity level of 85%. By November, the chill deepens, and temperatures drop further, with a minimum of 3°C (37°F) and an average of 9°C (49°F), reaching a maximum of 15°C (59°F). Precipitation increases to 101 mm (4.0 in) occurring over 15 days, and humidity remains relatively high at 84%. For a closer look at the November climate, you can check out Kinsale weather in November.
In September, the weather tends to be milder, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 21°C (70°F) and an average of 14°C (58°F). The month sees about 74 mm (2.9 in) of precipitation over 13 days, with humidity levels hovering around 85%. In contrast, December brings cooler temperatures, with a minimum of 0°C (33°F), an average of 8°C (47°F), and a maximum of 14°C (57°F). Precipitation increases significantly to 122 mm (4.8 in) over 17 days, while humidity remains relatively high at 83%. For more details on the winter climate, check out Kinsale weather in December.
As the summer transitions into autumn, September in Kinsale brings a refreshing change in weather. While temperatures are on the decline, the comfortable average still invites visitors to explore the charming coastal town. With increased humidity and a notable rise in precipitation days, this month can be reminiscent of the unpredictability of late summer. Those planning a trip should embrace the likelihood of occasional rain, making it essential to pack layers and a waterproof jacket. For more insights on what to expect from Kinsale's diverse weather throughout the year, visit Kinsale Climate.