Last updated: March 17, 2025
Experience the dynamic September weather of Ennis, Ireland, where temperatures can soar to a maximum of 27°C (80°F) while maintaining an average of 13°C (57°F). Meanwhile, chilly nights can dip to a minimum of 2°C (35°F). This month sees a significant amount of rainfall, with total precipitation reaching 92 mm (3.6 in) over approximately 15 days, resulting in high humidity levels of 88%. Whether you're exploring the vibrant landscapes or enjoying local festivities, be prepared for a blend of warm days and refreshing showers in this charming Irish town.
In September, Ennis experiences a mild transition that hints at the coming autumn chill. The temperatures range from a refreshing 2°C (35°F) at the lowest to a pleasant 27°C (80°F) at the peak, with an average of 13°C (57°F). This month marks a definitive shift from the summer warmth, as the maximum temperatures begin to decline compared to the highs of July and August. The cool evenings invite cozy gatherings, while the pleasant days are perfect for outdoor activities. As the last vestiges of summer fade, September serves as a beautiful reminder of the changing seasons, striking a balance between warmth and the refreshing onset of fall.
September in Ennis, Ireland, sees a moderate precipitation amount of 92 mm (3.6 in), with rain falling on approximately 15 days throughout the month. This marks a noticeable reduction from the preceding August, which boasted a hefty 132 mm (5.2 in) over 20 days. As summer transitions into autumn, September experiences more consistent rainfall compared to the drier spells of late spring and early summer, suggesting a steady shift towards Ireland's wetter season. The overall trend indicates that while September is typically moist, it remains more manageable than the deluges of summer, hinting at the rhythmic ebb and flow of rainfall that characterizes the region.
September in Ennis, Ireland, sees humidity levels rise to 88%, aligning with the consistent pattern observed earlier in the year. After navigating a gradual decline from a high of 88% in January and February to 83% in May and June, the humidity experiences a noticeable uptick as summer transitions to autumn. This month signals a return to higher moisture levels, reminiscent of the winter months ahead, where humidity escalates further to 91% by October and peaks at 92% in November. As such, September serves as a bridge, preparing residents and visitors alike for the increasingly damp conditions characteristic of the fall and winter seasons.
As summer gives way to autumn, the UV Index in Ennis, Ireland, reflects a gradual decline in sun intensity. In September, the UV Index sits at 5, marking a shift to a moderate exposure category with a burn time of 30 minutes for fair-skinned individuals. This is a notable reduction from the peak of summer, where July and June reached a very high index of 8, necessitating protective measures for only 15 minutes of sun exposure. While those heading outdoors can expect a more forgiving sun in September compared to the sizzling heights of summer, it's still essential to be mindful of UV rays as they remain significant. For a detailed look at the UV trends throughout the year, check out Ennis UV Index.
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As the days warm into September, Ennis, Ireland, experiences a delightful warmth with 283 hours of sunshine, signaling a gentle transition from summer to autumn. This month's sunshine showcases a slight dip from the vibrant days of July and August, yet still holds on to a generous share of light compared to the drearier winter months ahead. Notably, September's hours shine brighter than those of October, with 222 hours, hinting at a lingering summer spirit. The trend reveals a peak in sunlight during the spring and summer months, beautifully tapering into the crispness of fall. So, as you stroll through Ennis this September, bask in the golden rays that continue to grace the charming landscapes before the cozy cloaks of winter envelop the town.
As September sets in, Ennis, Ireland, witnesses a notable decline in sunny days, with a mere 15% chance of sunshine. This represents one of the lowest probabilities of clear weather throughout the year, following the fleeting brightness of summer. April emerges as the standout month with a more promising 44% chance, while October and November offer slight increases to 17% and 24% respectively. Observing the trend, it becomes apparent that as autumn takes hold, the likelihood of sunshine diminishes significantly, inviting the cool embrace of fall and preparing the landscape for more overcast days.
As summer transitions to autumn in Ennis, Ireland, September sees a graceful decline in daylight, with approximately 12 hours of sunlight illuminating the day. This marks a gentle shift from the bright 16 hours enjoyed in the peak of June and July, gradually tapering to the 10 hours typical in October. The month serves as a bridge between the long, sun-drenched days of summer and the shorter, cozier hours of fall, embodying a time when the vibrant colors of nature begin to change alongside the light. September encapsulates the essence of shifting seasons, inviting residents and visitors alike to revel in the lingering warmth while preparing for the shorter days ahead.
As September sweeps into Ennis, the winds gently whisper at an average speed of 3.2 m/s (7 mph), a slight decrease from the summer's breezy embrace. This transitional month reflects a broader trend, where wind speeds have generally dipped since the peak of summer, with July showcasing the calmest gusts at 2.7 m/s (6 mph). In contrast, the preceding months offered a more lively atmosphere with August and May both holding steady at 3.3 m/s (7 mph). With the arrival of autumn, the winds start to pick up slightly again, hinting at a shift as we head into October's average of 3.9 m/s (9 mph). This rhythm of change captures the essence of Ennis, where each month offers a unique dance between the seasons and the skies above.
The weather in Ennis 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 Ennis and find detailed weather information for every month.
September and January present striking contrasts in weather patterns. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 27°C (80°F), with an average of 13°C (57°F), making it a generally warmer month. The month also sees 92 mm (3.6 in) of precipitation over 15 days, coupled with high humidity levels of 88%. In contrast, January is much colder, with temperatures dipping as low as -5°C (24°F) and averaging 6°C (44°F), peaking at 14°C (58°F). Although January receives slightly less precipitation at 75 mm (3.0 in) over 13 days, it maintains the same humidity level of 88%. For more specific insights about January weather, you can visit Ennis weather in January.
September and February display contrasting weather patterns. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 27°C (80°F), with an average of 13°C (57°F). The month sees about 92 mm (3.6 in) of precipitation over 15 days, while humidity remains high at 88%. In contrast, February experiences cooler conditions, with temperatures dipping as low as -3°C (27°F) and reaching a maximum of 15°C (60°F), averaging around 7°C (44°F). Precipitation increases to 121 mm (4.8 in) over 18 days, although humidity remains consistent at 88%. For more insights into the weather specifics, visit Ennis weather in February.
September and March present contrasting weather patterns. In September, temperatures typically range from a mild 2°C (35°F) at night to a warm 27°C (80°F) during the day, with an average of 13°C (57°F). The month experiences considerable precipitation, totaling 92 mm (3.6 in) over 15 days, and maintains a high humidity level of 88%. In contrast, March is notably cooler, with temperatures dipping as low as -6°C (22°F) and peaking at 17°C (63°F), averaging 7°C (45°F). It also sees slightly higher precipitation at 104 mm (4.1 in) across 16 days, with similarly high humidity at 87%. For more insights into March's weather, you can check Ennis weather in March.
In comparing the weather between September and April, September generally experiences milder temperatures, with averages ranging from 2°C (35°F) to a maximum of 27°C (80°F), while April's temperatures are cooler, with a range from -2°C (29°F) to 22°C (71°F). Additionally, September sees higher precipitation totals, with 92 mm (3.6 in) over approximately 15 days, compared to April's 57 mm (2.2 in) over 11 days. Humidity levels are similar, with September at 88% and April at 86%. For a more detailed look at April's weather, you can check out Ennis weather in April.
September displays a broader range of temperatures, with minimums reaching 2°C (35°F) and maximums peaking at 27°C (80°F). In contrast, May experiences slightly lower temperatures, with minimums at 0°C (33°F) and maximums around 25°C (78°F). While both months endure multiple rainy days—15 in September and 12 in May—September generally sees higher precipitation levels at 92 mm (3.6 in) compared to May's 68 mm (2.7 in). Additionally, September's humidity is a bit more pronounced at 88%, while May maintains a comfortable 83%. For a more detailed look at May's climate, check out Ennis weather in May.
September and June present distinct weather patterns, with September generally being cooler and slightly wetter. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 27°C (80°F), averaging around 13°C (57°F). This month experiences about 92 mm (3.6 in) of precipitation across 15 days, accompanied by high humidity at 88%. In contrast, June typically has warmer temperatures, with a minimum of 5°C (41°F) and a maximum of 30°C (87°F), and an average temperature of 14°C (58°F). This month sees less precipitation at 66 mm (2.6 in) over 14 days, and slightly lower humidity at 83%. For more detailed weather information, you can visit Ennis weather in June.
In comparing the weather of September and July, September tends to be cooler, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 27°C (80°F), and an average temperature of 13°C (57°F). In contrast, July experiences milder temperatures, featuring a minimum of 7°C (44°F) and a maximum of 29°C (84°F), averaging at 16°C (61°F). While both months see significant rainfall, September has higher precipitation at 92 mm (3.6 in) over 15 days compared to July's 76 mm (3.0 in) over 12 days. Additionally, September holds slightly higher humidity at 88%, while July is at 85%. For more details about July weather specifically in Ennis, you can check Ennis weather in July.
In comparing the weather patterns of September and August, a notable shift can be observed. September features a broader temperature range, with minimums dropping to 2°C (35°F) and maximums reaching up to 27°C (80°F), whereas August remains warmer, with minimums at 6°C (44°F) and maximums peaking at 24°C (76°F). Precipitation also sees a variation; September receives 92 mm (3.6 in) over 15 days, compared to August's higher total of 132 mm (5.2 in) over 20 days. Additionally, humidity levels are slightly higher in September at 88%, compared to August's 85%. For a more detailed look at August weather, you can visit Ennis weather in August.
September and October present noticeable changes in weather conditions. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 27°C (80°F), with an average temperature of 13°C (57°F). This month experiences about 92 mm (3.6 in) of precipitation over 15 days and maintains a humidity level of 88%. In contrast, October sees a decline in temperatures, with lows dropping to 0°C (32°F) and highs peaking at 19°C (67°F), averaging 11°C (52°F). Rainfall increases slightly to 105 mm (4.1 in) over 16 days, accompanied by a slight rise in humidity to 91%. For a detailed overview of October’s weather, you can check out Ennis weather in October.
In comparing the weather between September and November, we notice a significant drop in temperatures. September enjoys a milder average temperature of 13°C (57°F), with a maximum reaching 27°C (80°F), while November sees cooler averages at 8°C (47°F) and a high of just 16°C (61°F). Precipitation levels are slightly higher in November at 97 mm (3.8 in), occurring over 16 days, compared to September's 92 mm (3.6 in) across 15 days. Additionally, humidity increases marginally from 88% in September to 92% in November, contributing to a more brisk and damp atmosphere. For more detailed information, you can visit Ennis weather in November.
September and December present quite different weather conditions. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 27°C (80°F), with an average of 13°C (57°F). Precipitation is relatively high at 92 mm (3.6 in) over approximately 15 days, and humidity sits at 88%. In contrast, December sees cooler temperatures, with a minimum of -2°C (28°F) and a maximum of 14°C (58°F), averaging around 7°C (45°F). The month is wetter, recording 124 mm (4.9 in) of precipitation across 19 days, accompanied by slightly higher humidity at 89%. For more details on December weather, you can check Ennis weather in December.
As September unfolds in Ennis, it brings a unique blend of mild warmth and frequent rainfall, distinguishing it from the balmy summer months. Average temperatures dip significantly, shifting from the peak of summer to a more comfortable yet cooler ambiance, while the landscape transforms with increased humidity and persistent showers. With about half the month marked by precipitation, the lush green surroundings thrive, making it a picturesque time to explore the region. For those interested in understanding the transition from summer to autumn and how it shapes local climate patterns, more information can be found at Ennis Climate.