Last updated: March 17, 2025
In September, Llangollen experiences a diverse range of weather, with maximum temperatures reaching a pleasant 27°C (80°F) while averaging at 13°C (56°F). However, temperatures can dip to a chilly 1°C (34°F), reminding us that autumn is approaching. The month also brings significant rainfall, with 88 mm (3.4 in) of precipitation over 14 days, contributing to the lush greenery in the area. Humidity levels hover around a humid 85%, making it essential for visitors to prepare for changeable weather and enjoy the beautiful landscapes this charming town has to offer.
September in Llangollen offers a refreshing transition into autumn, with temperatures that reflect a gradual shift from summer's warmth. The month welcomes cooler mornings, with minimums dropping to around 1°C (34°F), while daytime temperatures can still reach a pleasant 27°C (80°F). With an average temperature of 13°C (56°F), September strikes a delightful balance, allowing travelers to enjoy outdoor activities amidst stunning autumn foliage. As the month progresses, you may notice the evenings becoming crisper, hinting at the winter chill just around the corner—an invitation to savor the last remnants of warmth before temperatures continue to decline in the coming months.
In September, Llangollen experiences a substantial continuation of its wet season, with an average precipitation of 88 mm (3.4 in) over 14 days. This marks a slight decrease from the rainfall recorded in August, yet aligns closely with the overall trend observed throughout the late summer and early autumn months. The transition into fall brings a consistent level of moisture that prepares the region for the more pronounced precipitation patterns of October. As the days shorten and temperatures cool, residents can expect a similar rhythm of rainy days, making September a pivotal month in Llangollen’s annual rainfall cycle.
September in Llangollen experiences a notable uptick in humidity, rising to 85% after the relatively drier summer months of July and August, which hovered around 78% and 79%, respectively. This transition marks a gradual return to the higher humidity levels typical of the fall season, as the trend shifts towards higher percentages in the latter part of the year. With October looming ahead at 90%, the air becomes increasingly saturated, setting the stage for the misty, enchanting beauty of Llangollen's autumn. The month's humidity serves as a reminder of the region's characteristic dampness, offering a blend of freshness that complements the vibrant colors of the changing leaves.
As summer transitions into autumn in Llangollen, the UV Index dips to 5 in September, indicating a moderate exposure category with a burn time of 30 minutes. This marks a decline from the high levels seen in the peak summer months of July and August, where the index soared to 8. As the days grow shorter and the sun's intensity diminishes, residents and visitors can enjoy outdoor activities with greater ease, though it's still wise to practice sun safety. This trend signals a gradual retreat from the intense UV radiation of summer, prompting a more relaxed approach to sun exposure as the weather cools. Discover more about the UV Index throughout the year at Llangollen UV Index.
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As summer fades, September in Llangollen, United Kingdom, offers a delightful transition into autumn with 286 hours of sunshine, showcasing a comfortable balance between warmth and cooler breezes. This month stands as a testament to the region’s shifting weather patterns, where the sunshine peaks in the heart of summer with July reaching an impressive 396 hours. It’s interesting to note how the light begins to retreat from August's 360 hours, leading into the diminishing daylight of the fall months. Despite this decline, September still celebrates a generous amount of sunshine compared to the much lower figures found in January and February, where overcast skies dominate. Embracing September's sunny days becomes a cherished experience, as the landscape transforms with vibrant autumn colors, making it a perfect time for exploration and outdoor adventures.
In Llangollen, United Kingdom, September offers a modest 22% chance of sunny weather, mirroring the slightly overcast days of August. As summer gives way to autumn, the likelihood of sunshine drops from the prior month, reflecting a broader trend where the sunniest months are typically found in late spring and early summer. Notably, April delights with a much higher 43% chance, suggesting that while September may not be the sunniest month, it holds a comfortable spot in the seasonal transition from warmth to coolness. With fall approaching, it's a time when the sun can still make occasional appearances, making it a charming month for those who enjoy temperate weather mixed with the beauty of changing leaves.
As September unfolds in Llangollen, daylight begins its gentle descent, offering around 12 hours of light—significantly less than the 16 hours enjoyed during the height of summer in June and July. This transitional month marks a shift from the vibrant summer days towards the coziness of autumn, with daylight gradually retreating. Following the peak of 15 hours in May, September’s light reflects a clear pattern of diminishing daylight as the year progresses. As the leaves start to change, this subtle reduction in daylight serves as a reminder of nature’s cyclical rhythms, paving the way for the shorter days of October ahead.
September ushers in a gentle breeze in Llangollen, with average wind speeds settling at 2.7 m/s (6 mph)—a continuation of the relatively calm conditions seen during the summer months. As the year transitions into autumn, the wind intensity slightly mirrors the decline from the season's peak, characterized by the lowest speeds recorded since May. Notably, this dip contrasts with the brisk winds of October, which often revive as autumn deepens, suggesting that while September offers a brief moment of tranquility, it paves the way for the more invigorating gusts that loom on the horizon. Enjoy the serene charm of Llangollen this month, as nature prepares for the lively winds that typically follow.
The weather in Llangollen 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 Llangollen and find detailed weather information for every month.
September generally offers a more temperate climate compared to January, with average temperatures ranging from 13°C (56°F) during the day to a pleasant maximum of 27°C (80°F). The month experiences about 88 mm (3.4 in) of precipitation over approximately 14 days, accompanied by a humidity level of 85%. In contrast, January sees much cooler conditions, with average temperatures around 4°C (40°F), dipping to a minimum of -4°C (25°F) and a maximum of only 13°C (56°F). The precipitation is slightly lower at 67 mm (2.6 in) over 11 days while maintaining a higher humidity level of 89%. For those interested in more specific details, check out this link for Llangollen weather in January.
September and February exhibit notable differences in weather patterns. September boasts a warmer temperature range with a minimum of 1°C (34°F) and a maximum of 27°C (80°F), leading to a pleasant average of 13°C (56°F). In contrast, February’s temperatures drop significantly, presenting a minimum of -5°C (24°F) and peaking at 16°C (62°F), with an average of only 5°C (41°F). Both months receive similar amounts of precipitation, at 88 mm (3.4 in), but February has slightly more rainy days, totaling 15 compared to September's 14. Humidity levels are relatively high in both months, with February at 88% and September at 85%, adding to the chilly feel of late winter. For more details on February weather, check Llangollen weather in February.
September and March present quite distinct weather characteristics. In September, temperatures range from a minimum of 1°C to a comfortable maximum of 27°C, with an average of 13°C, while humidity levels hover around 85%. The month sees a total precipitation of 88 mm over approximately 14 days, marking the transition from summer to autumn.
In contrast, March experiences cooler temperatures, with a minimum of -7°C and a maximum reaching 19°C, averaging 6°C. It also features slightly higher precipitation at 95 mm, spread over about 16 days, and maintains a similar humidity level of 86%. For more specific details, you can check the Llangollen weather in March. Overall, September offers a milder and more variable climate compared to the chillier, wetter conditions typical of March.
When comparing the weather of September and April, there are notable differences in temperature and precipitation. September enjoys a milder temperature range, with a minimum of 1°C (34°F) and a maximum of 27°C (80°F), leading to an average of 13°C (56°F). In contrast, April starts cooler, with temperatures ranging from a minimum of -3°C (28°F) to a maximum of 21°C (70°F), averaging around 8°C (47°F). Precipitation in September is also higher, with 88 mm (3.4 in) over 14 days, compared to April’s 57 mm (2.2 in) across 12 days. Despite the difference in rainfall, both months maintain similar humidity levels, with September at 85% and April at 84%. For more details on the weather in April, you can visit Llangollen weather in April.
In comparing the weather of September and May, we see distinct differences in temperature and precipitation. September boasts a warmer average temperature of 13°C (56°F), reaching up to a maximum of 27°C (80°F), while May has a slightly cooler average of 11°C (52°F) and a peak of 25°C (78°F). Regarding precipitation, September tends to be wetter, with 88 mm (3.4 in) falling over 14 days, compared to May's 68 mm (2.7 in) over 13 days. Humidity levels are also a bit higher in September at 85%, while May's humidity sits around 79%. For more detailed information, you can check out Llangollen weather in May.
In comparing the weather of September and June, we see some distinctive differences. September experiences a wider temperature range, with a minimum of 1°C (34°F) and a maximum of 27°C (80°F), while June has milder lows of 5°C (41°F) and tops out at a similar maximum of 28°C (82°F). Both months have comparable levels of precipitation, with September receiving 88 mm (3.4 in) over 14 days, slightly less than June's 92 mm (3.6 in) across 13 days. Humidity is also slightly higher in September at 85%, compared to June's 81%. Overall, while both months are relatively wet, September tends to be cooler and more humid. For more details, check out Llangollen weather in June.
In comparing the weather between September and July, we see a notable difference in temperatures. September experiences a minimum temperature of 1°C (34°F), while July's minimum is slightly higher at 5°C (41°F). The average temperatures also reflect this trend, with September averaging 13°C (56°F) compared to July's 16°C (61°F). Interestingly, the maximum temperatures are fairly close, with September reaching up to 27°C (80°F) and July maxing out at 28°C (83°F). Precipitation levels are comparable, with September receiving 88 mm (3.4 in) of rain over 14 days, just slightly more than July's 78 mm (3.1 in) also over 14 days. Humidity is higher in September at 85% compared to July's 78%. For more specific details about July's weather patterns, you can check out Llangollen weather in July.
In comparing the weather of September and August, September tends to be cooler with a minimum temperature of 1°C (34°F) and an average of 13°C (56°F), while August enjoys slightly warmer temperatures, ranging from a minimum of 6°C (43°F) and an average of 15°C (60°F). The maximum temperature in September reaches 27°C (80°F), which is comparable to August’s 28°C (82°F); however, September experiences higher humidity at 85%, compared to August's 79%. Precipitation is also notable, with September receiving 88 mm (3.4 in) over 14 days, slightly less than August’s 94 mm (3.7 in) over 16 days. For more detailed insights on August weather specifics, you can check Llangollen weather in August.
September and October present a notable shift in weather characteristics. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 27°C (80°F), with an average temperature of 13°C (56°F), alongside 88 mm (3.4 in) of precipitation over 14 days and a humidity level of 85%. In contrast, October sees cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 21°C (69°F), resulting in an average temperature of 10°C (51°F). There is slightly more precipitation in October at 95 mm (3.8 in) over 15 days, and humidity rises to 90%. For more details on October weather patterns, check out Llangollen weather in October.
September typically offers a more moderate climate compared to November, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 27°C (80°F) and an average of 13°C (56°F). In contrast, November's temperatures can drop significantly, with a range from -3°C (27°F) to a high of 15°C (60°F) and an average of 7°C (45°F). While September sees around 88 mm (3.4 in) of precipitation over 14 days, November experiences slightly lower rainfall at 79 mm (3.1 in) but over a longer period of 16 days, leading to increased humidity levels averaging 91%. This shift in weather marks a transition from the warm embrace of early autumn to the chill of late fall. For more details on November weather, you can visit Llangollen weather in November.
The weather in September is notably warmer than in December, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 27°C (80°F), averaging around 13°C (56°F). In contrast, December experiences colder conditions, with temperatures dropping to a minimum of -7°C (20°F) and peaking at 13°C (55°F), averaging only 5°C (42°F). Additionally, September tends to be drier, with 88 mm of precipitation over 14 days, while December sees increased rainfall, totaling 105 mm across 18 days, and slightly higher humidity at 89%. For more details on December weather in Llangollen, check this link: Llangollen weather in December.
As summer transitions into autumn, September in Llangollen presents a notable change in weather patterns, marked by a significant drop in temperatures and increased humidity. Visitors can expect refreshing days with a mix of warm afternoons and cooler evenings, making it a unique time for outdoor exploration. While the rainfall is more pronounced, with a fair share of damp days, this contributes to the enchanting scenery of the surrounding countryside. This balance of temperatures and precipitation sets September apart, inviting travelers to embrace the seasonal beauty. For more detailed insights on how Llangollen's weather evolves throughout the year, check out our guide on Llangollen Climate.