Last updated: March 17, 2025
In Cahir, Ireland, the weather in September offers a delightful mix of conditions, with temperatures ranging from a chilly minimum of 1°C (33°F) to a pleasant maximum of 25°C (78°F), averaging around 13°C (55°F). Visitors can expect frequent rain, as this month sees approximately 69 mm (2.7 in) of precipitation across 12 days, resulting in a high humidity level of 88%. Whether exploring the scenic landscapes or enjoying the local culture, be prepared for the varied weather that September brings to this charming town.
In Cahir, Ireland, September brings a welcoming transition into autumn, characterized by mild temperatures that appeal to both locals and visitors alike. With a minimum of 1°C (33°F) and an average of 13°C (55°F), the month vibrantly reflects the waning warmth of summer. The maximum temperature reaches a comfortable 25°C (78°F), allowing for pleasant outdoor activities amidst the stunning landscapes. As the weather gradually cools from the high summer temperatures of July and August, September provides a gentle reminder that the season is changing, enticing residents to savor the last glimpses of warmth before the chill of October sets in.
In September, Cahir experiences a moderate precipitation amount of 69 mm (2.7 in), falling slightly below the summer peak of August, which boasted 103 mm (4.1 in). Rain graces the town on about 12 days, providing a refreshing transition into autumn. This monthly rainfall reflects the consistent patterns seen throughout the year, where precipitation tends to fluctuate, with the wetter months of October and December looming ahead, likely contributing to the increasing chill in the air. Overall, September's weather serves as a gentle reminder of nature's rhythm, balancing drier and wetter spells as the seasons shift.
In Cahir, Ireland, September marks a return to notably high humidity, with levels soaring to 88%, reminiscent of the depths of winter. Following the summer months where humidity fluctuated between 83% and 85%, this slight uptick is not unexpected as autumn approaches. The trend reveals a gradual increase as the year progresses, culminating in October and November, where humidity peaks at 91% and 92% respectively. Such significant moisture in the air creates a refreshing yet cool ambiance in September, setting the stage for the cozy autumn days ahead.
As summer fades into autumn, September in Cahir, Ireland, sees a notable shift in the UV Index, dropping to a moderate level of 5. This change reflects a transition from the very high readings of July and June, where protective measures were crucial due to the shorter burn times of just 15 minutes. While September's 30-minute burn time allows for a bit more sun exposure, it’s essential to remain cautious, especially as outdoor activities become more frequent with the milder weather. It’s a great time to enjoy the outdoors, but don’t forget to monitor your sun exposure! For detailed information, check out the Cahir UV Index.
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September in Cahir, Ireland, basks in a delightful 285 hours of sunshine, making it a radiant conclusion to the summer season. Following the sunniest months of May to July, where daylight flourished with over 380 hours, September showcases a gentle decline as autumn approaches, yet still holds its charm. The warm glow of late summer lingers, with sunshine hours significantly overshadowing the colder months ahead, like November's mere 124 hours. This transitional month invites both locals and visitors to relish the outdoors, soaking in the brilliance of the sun while nature begins to don its autumn attire. As the days gradually shorten, September remains a vibrant reminder of the lingering warmth of summer.
When considering the likelihood of sunny weather in September in Cahir, Ireland, it's important to note a noticeable trend in the data. With only a 17% chance of sunny days, September emerges as one of the least promising months for sunshine, mirroring the low probabilities seen in October and June. In juxtaposition, the springtime months like April show a more encouraging 43% chance, indicating that as summer progresses, the sun's presence tends to wane. Despite the romantic allure of an Irish autumn, those hoping for a radiant September might want to prepare for the reality of overcast skies more often than not.
As summer wanes into autumn, September in Cahir, Ireland, offers a gentle transition with about 12 hours of daylight. This month reflects a gradual decrease from the long, sun-soaked days of July and August, which basked in 16 and 14 hours of light, respectively. While September sees a comfortable balance between light and dark, it signals the approach of shorter days, with October's daylight dwindling to 10 hours. The trend showcases nature's rhythm, moving from the vibrant energy of summer into a more subdued, reflective autumn. As the leaves begin to change, so too does the play of sunlight, inviting residents to savor the beauty of the season before the long nights of winter set in.
As September settles over Cahir, Ireland, the winds begin to whisper a gentle lull, with an average wind speed of 2.8 m/s (6 mph)—slightly softer than the month before. This marks a transition into the autumn months, where the breezes become more subdued compared to the gustier spring months, which saw higher averages around 4.8 m/s (11 mph) in February and 3.7 m/s (8 mph) in March. Interestingly, the trend shows a gradual decline in wind speed throughout the summer, peaking at the beginning of the year and tapering off as the seasons shift. As we approach October, a slight uptick to 3.6 m/s (8 mph) is expected, hinting at the invigorating winds of autumn that will soon invigorate Cahir's scenic landscapes. Overall, September's gentle winds invite a moment of tranquility amidst the evolving beauty of the surrounding countryside.
The weather in Cahir 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 Cahir and find detailed weather information for every month.
In September, temperatures in Cahir range widely, from a chilly minimum of 1°C (33°F) to a pleasant maximum of 25°C (78°F), with an average of 13°C (55°F). The month brings about 69 mm (2.7 in) of rain over approximately 12 days, with a high humidity level of 88%. In contrast, January sees much colder temperatures, with a minimum of -6°C (22°F) and a maximum of 13°C (56°F), averaging at 5°C (42°F). The precipitation is slightly less, at 62 mm (2.4 in) over 11 days, but humidity remains constant at 88%. For more details about the January weather patterns, you can explore this link: Cahir weather in January.
September and February present distinct differences in weather patterns. In September, temperatures range from a minimum of 1°C (33°F) to a comfortable maximum of 25°C (78°F), with an average of 13°C (55°F). The month experiences 69 mm (2.7 in) of precipitation over approximately 12 days, while humidity sits consistently high at 88%. On the other hand, February is cooler, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 14°C (58°F) and an average of 6°C (43°F). This month sees more precipitation, totaling 112 mm (4.4 in) over 17 days, yet the humidity remains steady at 88%. For a more detailed view of February weather, check out Cahir weather in February.
September and March present contrasting weather patterns. In September, temperatures range from a minimum of 1°C (33°F) to a maximum of 25°C (78°F), with an average of 13°C (55°F). The month sees moderate precipitation of 69 mm (2.7 in) over about 12 days and maintains a high humidity level of 88%. Conversely, March is notably colder, with temperatures dipping as low as -8°C (18°F) and peaking at 17°C (62°F), averaging around 6°C (43°F). It experiences higher precipitation at 98 mm (3.9 in) spread over 17 days, all while keeping humidity at a similar rate of 87%. For more detailed insights on March weather, visit Cahir weather in March.
In comparing the weather in September and April, we observe significant differences in temperature and precipitation patterns. September tends to be warmer, with average temperatures ranging from a minimum of 1°C (33°F) to a maximum of 25°C (78°F), while April experiences cooler temperatures, with a minimum of -4°C (26°F) and a maximum of 20°C (68°F). Precipitation levels are quite similar, with September receiving 69 mm (2.7 in) over 12 days and April slightly less at 65 mm (2.6 in) across 11 days. Humidity is slightly higher in September at 88%, compared to April's 86%. For more detailed information, you can check Cahir weather in April.
September and May exhibit distinct weather characteristics, making each month unique. In September, temperatures range from a chilly minimum of 1°C (33°F) to a comfortable maximum of 25°C (78°F), with an average of 13°C (55°F). The month sees a slight increase in precipitation, totaling 69 mm (2.7 in) over 12 days, while humidity rises to 88%.
Conversely, May experiences slightly cooler temperatures, with minima dropping to -2°C (30°F) and an average of 11°C (52°F), peaking at 24°C (76°F). The precipitation is only marginally higher at 71 mm (2.8 in), also spread across 12 days, and the humidity remains lower at 83%.
For a deeper understanding of May's climate, you can visit Cahir weather in May.
September and June exhibit some notable differences in weather patterns. September typically sees a wider range of temperatures, with minimums dropping to 1°C (33°F) and maximums reaching 25°C (78°F), while June enjoys slightly warmer averages with minimums at 4°C (39°F) and maximums peaking at 29°C (84°F). Both months experience similar levels of precipitation, around 68-69 mm (2.7 in), but September has rainfall spread over 12 days compared to June's 13 days, suggesting slightly more consistent rain in June. Additionally, September's higher humidity at 88% contrasts with June's more comfortable level of 83%. For more details about June weather specifically, you can refer to Cahir weather in June.
In comparing the weather of September and July, we can see noticeable differences in temperature and rainfall patterns. September starts off cooler, with a minimum temperature of 1°C (33°F) and an average of 13°C (55°F), while July is warmer, with minimum temperatures around 6°C (43°F) and an average of 16°C (60°F). Additionally, July experiences a slightly higher maximum temperature of 28°C (82°F) compared to September's 25°C (78°F). Precipitation levels are similar; however, September has a bit more rainfall at 69 mm (2.7 in) over 12 days, versus July's 76 mm (3.0 in) over 13 days. The humidity in September is slightly higher at 88%, compared to July's 85%. For more detailed information, you can check Cahir weather in July.
In September, temperatures generally range from a chilly minimum of 1°C (33°F) to a warm maximum of 25°C (78°F), with an average of 13°C (55°F). In comparison, August sees slightly milder conditions, with minimum temperatures of 5°C (41°F), an average of 15°C (59°F), and a maximum of 24°C (76°F). While September experiences 69 mm (2.7 in) of precipitation over 12 days, August is notably wetter, recording 103 mm (4.1 in) across 17 days. Additionally, humidity levels remain relatively high in both months, with September at 88% and August at 85%. For more detailed insights into August weather, visit Cahir weather in August.
In September, temperatures range from a minimum of 1°C (33°F) to a maximum of 25°C (78°F), with an average of 13°C (55°F). The month experiences moderate rainfall, totaling 69 mm (2.7 in) over about 12 days, and carries a humidity level of 88%. In contrast, October sees cooler conditions, with temperatures dropping to a minimum of -3°C (28°F) and peaking at 18°C (66°F), averaging around 10°C (50°F). Precipitation increases to 104 mm (4.1 in) spread over approximately 14 days, accompanied by slightly higher humidity at 91%. For more details on October's weather, you can visit Cahir weather in October.
September and November exhibit notable contrasts in weather patterns. In September, temperatures range from a mild minimum of 1°C (33°F) to a pleasant maximum of 25°C (78°F), with an average of 13°C (55°F). The month experiences 69 mm (2.7 in) of precipitation over 12 days and a humidity level of 88%. Conversely, November sees colder temperatures, with a minimum of -3°C (27°F), an average of 7°C (45°F), and a maximum of 15°C (60°F). This month is also marked by increased precipitation of 90 mm (3.6 in) spread over 15 days, along with slightly higher humidity at 92%. For a more detailed understanding of November's weather, you can visit Cahir weather in November.
In September, the weather tends to be much milder, with temperatures ranging from a low of 1°C (33°F) to a high of 25°C (78°F) and an average of 13°C (55°F). The month sees about 69 mm (2.7 in) of precipitation over 12 days, accompanied by high humidity at 88%. In contrast, December brings much colder temperatures, dropping to a minimum of -5°C (24°F) and averaging 6°C (43°F), with a maximum of only 14°C (57°F). The total precipitation increases to 113 mm (4.4 in) over 16 days, and humidity remains similarly high at 89%. For more detailed information about the winter weather in this region, visit Cahir weather in December.
As we transition into September, Cahir experiences a noticeable shift in weather patterns compared to the preceding summer months. The cooler temperatures begin to set in, with evenings growing crisp and inviting, marking the onset of autumn. While the humidity remains high, the increased precipitation days bring refreshing rains that contribute to the lush greenery of the region. This month’s blend of mild warmth and breezy afternoons creates a distinct atmosphere perfect for enjoying the scenic beauty of Cahir. For a deeper dive into year-round weather trends, visit Cahir Climate.