September Weather in Kerry, United Kingdom

Last updated: March 17, 2025

Experience the September weather in Kerry, United Kingdom, where temperatures showcase a delightful range, peaking at a maximum of 27°C (80°F) and dipping to a fresh minimum of 1°C (34°F). The average temperature hovers around a comfortable 13°C (55°F), making it an ideal time for outdoor adventures. While rain is a frequent visitor, with approximately 72 mm (2.8 in) falling over about 13 days, the area's lush landscapes thrive in this moisture. With humidity levels reaching 85%, prepare for a refreshing coastal atmosphere that embodies the charm of early autumn in Kerry.

September Temperature in Kerry

In September, Kerry, United Kingdom, experiences a transition marked by a slight drop in temperature as summer wanes. The average temperature hovers around 13°C (55°F), while daily highs can still reach a pleasant 27°C (80°F), reflecting the lingering warmth of late summer. Mornings start to feel crisper, with minimum temperatures dipping to 1°C (34°F), hinting at the approach of autumn. This shift from the heat of July and August prepares the region for the cooler months ahead, making September a unique blend of warmth and the emerging chill of fall. As the landscapes begin to transform, it’s a beautiful time for outdoor exploration, taking advantage of both the mild days and refreshing evenings.

September Weather in Kerry: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kerry, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394142465157605955504442
Data source: Temperature data for Kerry generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Kerry

In September, Kerry experiences a moderate shift in precipitation, with 72 mm (2.8 in) of rainfall spread over 13 days. This amount reflects a slight decrease from the summer months, where precipitation peaked in August at 86 mm. However, September's rainfall prepares the landscape for the upcoming autumn, as it balances well with the typically drier April and stands as a precursor to the wetter months ahead—October and December—where precipitation levels rise significantly. Overall, the month maintains a consistent trend of rainfall typical for early autumn in the region, contributing to Kerry's lush, green scenery.

September Precipitation Trends in Kerry

The chart displays monthly precipitation patterns in Kerry, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec67949655768868867210287108
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kerry

In September, Kerry experiences a notable increase in humidity, reaching 85%, which is a slight elevation from the preceding months. This rise follows a summer pattern where humidity typically hovers around the 78-79% range. As the season transitions, the air moisture thickens, hinting at the impending autumn. Comparison to the earlier months reveals a gradual downward trend from January's peak of 89%, but September's humidity still stands significantly higher than the late summer levels. This gentle uptick is a reminder of the shifting seasons, setting the stage for the wetter months ahead, particularly as October approaches with its expected 90% humidity.

September Average Humidity in Kerry

This chart illustrates the average monthly humidity levels in Kerry, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kerry

In September, Kerry experiences a UV Index of 6, indicating a high exposure category and a burn time of just 25 minutes for fair-skinned individuals. This marks a gradual decline from the peak summer months of July and August, where UV levels soared to 8. As the summer fades and autumn approaches, it’s essential to stay vigilant about sun protection, particularly during peak midday hours. With UV levels dropping slightly compared to the height of summer, September still demands attention to minimize sun damage. Whether you're enjoying the beautiful landscapes or engaging in outdoor activities, make sure to check the UV Index regularly for safe sun exposure. For more details, visit Kerry UV Index.

Maximum UV Index Levels in Kerry for September

The chart shows the monthly maximum UV Index (UVI) for Kerry in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Kerry September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Kerry

September in Kerry, United Kingdom, brings a delightful transition into autumn, capturing an impressive 276 hours of sunshine. Following the peak of summer, where July shines brightest with 388 hours, sunlight begins to wane but remains abundant. This month stands out as a golden bridge between the sunny exuberance of May and June, which boast 371 and 349 hours respectively, and the more subdued brightness of October's 210 hours. As the vibrant greens of summer start to transform, September retains a warmth and radiance that invites both locals and visitors to relish in the picturesque scenery before the winter months set in.

Monthly Sunshine Duration in Kerry: September Highlighted

The September sunshine duration represents the total number of hours Kerry experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec77h130h186h298h371h349h388h343h276h210h107h91h
Data source: Kerry September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kerry During September

As September rolls into Kerry, the likelihood of encountering sunny weather remains modest, with a 21% chance of sunshine. This figure, while slightly higher than August's 20%, reflects a typical pattern of fluctuating sun chances through the early autumn months. Notably, the warmth of summer is still felt, but the cloud cover starts to creep in, marking a transition from the brighter days of April's peak 46% likelihood. Looking ahead, October seems to herald a return to lower sun chances, dropping to 17%. Thus, September offers a rare moment of mild, pleasant days that can be enjoyed before the more unpredictable weather sets in, making it a delightful time to experience the beauty of Kerry.

Percentage of Sunny Days in September in Kerry

The chart illustrates the percentage of sunny days in Kerry throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Kerry experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec16%18%22%46%26%22%35%20%22%17%24%13%
Data source: Kerry September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kerry in September

In September, Kerry experiences a transition as daylight begins to fade, offering around 12 hours of sunlight—a soothing balance following the vibrant 16 hours of brightness in the peak summer months of June and July. This gradual decline from the long summer days signals the onset of autumn, as the landscape starts to shift and prepare for the cooler months ahead. The daylight duration this month is still ample enough to enjoy outdoor activities, yet it hints at the shorter days to come, reminding us of nature's rhythm as it moves towards the darker months of October and November. With every sunset, September encapsulates the cozy charm of changing seasons, inviting warmth and reflection as it bridges summer's end and autumn's embrace.

Average Daylight Hours in Kerry for September

The chart illustrates the variation in daylight duration in Kerry throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 14m9h 53m11h 54m13h 58m15h 47m16h 44m16h 13m14h 36m12h 36m10h 33m8h 42m7h 43m
Data source: Kerry daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kerry

As summer draws to a close in Kerry, United Kingdom, September ushers in a gentle breeze, with average wind speeds around 3.0 m/s (7 mph). This slight drop in wind intensity follows a gradual decline from the typically calmer conditions of July and August, peaking during the spring months. The trend of diminishing wind continues into the fall, setting a tranquil scene as nature shifts gears. With October bringing increased gusts of 4.5 m/s (10 mph), October’s winds herald a more dynamic transition, before settling into the steadier patterns of late autumn. Overall, September stands as a moment of calm before the winds of change pick up once again.

Average September Wind Speed in Kerry

The chart displays monthly wind speed patterns in Kerry, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.35.04.43.03.83.12.63.43.0 m/s4.53.94.4
Data source: Kerry September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kerry Compares to Other Months

The weather in Kerry 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 Kerry and find detailed weather information for every month.

In September, temperatures show a wider range, with minimums at 1°C (34°F) and maximums reaching up to 27°C (80°F), providing an average of 13°C (55°F). The month experiences about 72 mm (2.8 in) of precipitation over 13 days, coupled with a humidity level of 85%. In contrast, January is significantly colder, with minimum temperatures dropping to -6°C (21°F) and a maximum of 13°C (55°F), resulting in a cooler average of 4°C (40°F). Although January has slightly less precipitation at 67 mm (2.7 in) over 12 days, the humidity rises to 89%, making the month feel more damp and brisk. For more on weather specifics, you can visit Kerry weather in January.

September and February present distinct weather contrasts. In September, temperatures range from a mild 1°C (34°F) to a warm 27°C (80°F), with an average of 13°C (55°F). The month experiences around 72 mm (2.8 in) of precipitation over 13 days, coupled with a humidity level of 85%. Conversely, February is much chillier, featuring temperatures that dip between -6°C (21°F) and 16°C (61°F), with an average of 5°C (41°F). This month is wetter, receiving 94 mm (3.7 in) of precipitation over 15 days, and a slightly higher humidity of 88%. For more detailed insights, check out Kerry weather in February.

September and March present contrasting weather patterns, reflecting the transition from summer to autumn and the gradual shift towards spring. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 27°C (80°F), with an average of 13°C (55°F), and the month experiences around 72 mm (2.8 in) of precipitation over 13 days, accompanied by high humidity at 85%.

Conversely, March tends to be cooler, with temperatures varying from a minimum of -7°C (19°F) to a maximum of 19°C (66°F) and an average of 6°C (43°F). The precipitation increases slightly to 96 mm (3.8 in), falling on approximately 16 days, and humidity is marginally higher at 86%. For a more detailed look at the weather in this month, you can check Kerry weather in March.

In comparing the weather between September and April, September typically presents warmer temperatures with a minimum of 1°C (34°F), an average of 13°C (55°F), and a maximum of 27°C (80°F). In contrast, April is cooler, featuring a minimum of -3°C (27°F), an average of 8°C (46°F), and a high of 21°C (69°F). Precipitation levels in September are slightly higher, with 72 mm (2.8 in) spread over 13 days, whereas April sees 55 mm (2.2 in) over 10 days. Humidity remains similar in both months, with September at 85% and April at 84%. For more detailed information about April weather, you can visit Kerry weather in April.

In comparing the weather between September and May, we notice a slight variation in temperatures and precipitation. September tends to be warmer overall, with average temperatures reaching 13°C (55°F) and a maximum of 27°C (80°F), while May has a lower average of 11°C (52°F) and a maximum of 25°C (77°F). Both months see about 13 days of precipitation, with September receiving 72 mm (2.8 in) and May slightly more at 76 mm (3.0 in). Humidity levels are also comparable, with September at 85% and May slightly lower at 79%. For more detailed insights into May weather, you can check out Kerry weather in May.

When comparing the weather in September and June, both months showcase similar high temperatures, with maximums reaching around 27°C (81°F). However, September tends to be cooler overall, with an average temperature of 13°C (55°F), compared to June's average of 14°C (57°F). September also experiences more chill, with a minimum temperature of 1°C (34°F), while June's minimum is a milder 5°C (41°F). In terms of precipitation, September sees slightly less rainfall at 72 mm (2.8 in) compared to June's 88 mm (3.5 in), although both months have a similar number of rainy days, with 13 and 14 days, respectively. Additionally, September has a higher humidity level at 85% compared to June's 81%. For more detailed insights into June weather, you can refer to Kerry weather in June.

In comparing the weather between September and July, we see notable differences. September experiences a wider temperature range, with a minimum of 1°C (34°F) and a maximum of 27°C (80°F), while July's temperatures are consistently warmer, ranging from a minimum of 5°C (42°F) to a maximum of 28°C (82°F). Although both months have similar precipitation levels—72 mm (2.8 in) in September and 68 mm (2.7 in) in July—the humidity is slightly higher in September at 85% compared to July's 78%. Overall, September introduces cooler temperatures and higher humidity, making it feel distinctly different from the typically warmer July days. For more detailed insights on July weather, you can check this link: Kerry weather in July.

September generally experiences cooler temperatures compared to August, with minimums dropping from 5°C (42°F) to 1°C (34°F) and average temperatures decreasing slightly from 15°C (59°F) to 13°C (55°F). Despite similar maximum temperatures of 27°C (81°F), September tends to be characterized by higher humidity at 85%, compared to August's 79%. Precipitation levels are also noteworthy, with September receiving 72 mm (2.8 in) over 13 days of rain, while August sees a bit more, accumulating 86 mm (3.4 in) over 14 days. For more details on the August weather, you can check out Kerry weather in August.

In September, the weather can be quite warm, with average temperatures reaching up to 13°C (55°F) and a maximum of 27°C (80°F). However, as autumn progresses into October, temperatures drop significantly, with an average of 10°C (50°F) and a maximum of only 21°C (69°F). Additionally, October experiences increased precipitation, totaling 102 mm (4.0 in) over 14 days, compared to September's 72 mm (2.8 in) over 13 days. Humidity levels also rise slightly from 85% in September to 90% in October, contributing to a much cooler and wetter atmosphere. For detailed insights into the October weather patterns, you can check Kerry weather in October.

In September, temperatures vary significantly, ranging from a chilly 1°C (34°F) at night to a warm 27°C (80°F) during the day, resulting in an average temperature of 13°C (55°F). The month experiences around 72 mm (2.8 in) of precipitation over approximately 13 days, with humidity levels at 85%. In contrast, November brings cooler conditions, with temperatures dipping down to -4°C (26°F) at night and reaching a maximum of 15°C (60°F), yielding an average temperature of 7°C (45°F). Precipitation increases slightly to 87 mm (3.4 in) over 16 days, and humidity rises to 91%. For more information on November weather, you can check this link: Kerry weather in November.

September and December present contrasting weather patterns, with September experiencing milder temperatures ranging from a minimum of 1°C (34°F) to a maximum of 27°C (80°F) and an average of 13°C (55°F). In September, the region sees about 72 mm (2.8 in) of precipitation over 13 days, coupled with a humidity level of 85%. In stark contrast, December brings colder temperatures, with a minimum of -8°C (17°F), an average of 5°C (42°F), and a maximum of 13°C (55°F). The month is wetter, with approximately 108 mm (4.2 in) of precipitation spread over 18 days and a humidity of 89%. For more details on the December climate, you can explore Kerry weather in December.

Compare Kerry's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kerry

As September unfolds in Kerry, the weather presents a notable transition from the warmth of summer to the crispness of autumn. With maximum temperatures peaking at a comfortable 27°C, the month still holds onto the remnants of summer, but the average dips to a cooler 13°C, casting a refreshing chill, especially in the mornings. Rainfall becomes more frequent, with 13 days of precipitation adding a lush vibrancy to the landscape, while the humidity stays high at 85%. This combination of warmth during the day and cooler nights makes September unique, paving the way for the rich, colorful changes that autumn brings. For more detailed insights into the region’s weather patterns, visit Kerry Climate.