Last updated: March 17, 2025
In September, Blaenau-Ffestiniog experiences a dynamic weather pattern, characterized by warm temperatures peaking at a maximum of 27°C (81°F) and dipping to a minimum of 1°C (35°F). The average temperature hovers around a cool 13°C (55°F), making for brisk mornings and mild afternoons. Rainfall is significant, with a total of 126 mm (5.0 in) spread over 16 days, resulting in an 85% humidity level that envelops the region. This blend of temperatures and moisture creates a lush and vibrant atmosphere, perfect for exploring the rugged beauty of this unique locale.
In September, Blaenau-Ffestiniog begins to transition from the warmth of summer to the crispness of autumn. The average temperature rests at a comfortable 13°C (55°F), offering a pleasant environment for outdoor exploration. As days grow shorter, nighttime brings a slight chill, with minimum temperatures dipping to 1°C (35°F), while the maximum can still reach a warm 27°C (81°F). This month marks a significant drop from the peak summer months, yet it retains enough warmth to enjoy the vibrant landscapes before the onset of colder weather. The gradual decline in temperatures hints at the approaching autumn, making September a delightful time to experience the stunning scenery of this charming Welsh town.
September in Blaenau-Ffestiniog sees a notable transition as summer comes to a close, with precipitation measuring 126 mm (5.0 in) across the month. This represents a decrease from the drenched August, which recorded the highest rainfall of the year at 153 mm (6.0 in). Despite the drop, September remains quite wet, with rainfall occurring on 16 days—a clear indication that autumn weather is taking charge. As the region prepares for the increasingly soggy October, it emphasizes a typical trend of escalating precipitation into the fall months, culminating in December's peak at 165 mm (6.5 in). This rhythm of rainfall not only shapes the local landscape but also fosters the lush greenery for which Blaenau-Ffestiniog is renowned.
In September, Blaenau-Ffestiniog experiences a refreshing humidity level of 85%, marking a transition as summer yields to autumn. This slight uptick from the summer months, where humidity hovered around 78%-79%, suggests a gradual return to the wetter conditions characteristic of the region. Notably, September's humidity is still significantly lower than the peaks seen in late autumn and winter, where levels climb to 90% and above. Such patterns reveal how this Welsh town, nestled among striking mountains and lush landscapes, is steeped in moisture as the seasons shift, setting the stage for the lush greenery that follows in the coming months.
As summer fades in September, Blaenau-Ffestiniog experiences a noticeable shift in UV exposure, with the UV Index dropping to 5. This marks a transition to a moderate exposure category, allowing for a safer outdoor experience where the burn time is approximately 30 minutes. Following the peak months of very high UV ratings in June and July, September's UV levels are still significant, reminding residents and visitors alike to remain vigilant about sun protection. This month beautifully encapsulates the changing seasons, blending the late warmth of summer with the crispness of autumn. For a detailed overview of UV levels throughout the year, visit Blaenau-Ffestiniog UV Index.
UV Risk Categories
September in Blaenau-Ffestiniog ushers in a delightful transition as the summer warmth lingers, offering 313 hours of sunshine—a significant dip from the sun-drenched days of July and August, yet still comfortably above the winter months. Following the peak summer sunshine, September showcases a gentle decline in daylight, hinting at the approaching autumn. This month's sunlight speaks to a balance of warmth and coolness, making it an ideal time for enjoying the stunning landscapes without the summer crowds. As daylight hours slowly wane, the rich hues of fall begin to emerge, creating an enchanting backdrop for those exploring this charming Welsh town.
As September rolls around in Blaenau-Ffestiniog, residents and visitors can expect a 19% chance of sunny weather. This marks a slight dip from the more vibrant conditions of late summer, particularly August's 22%. In the broader context of the year, September's sunshine likelihood is higher than the peak months of winter, such as January and February, which hover around 16-18%. However, it remains lower than the sunnier spring months, especially April, which boasts a more optimistic 43%. Overall, while September does not shine as brightly as some other months, it still offers hints of warmth and light before the autumn sets in.
As autumn approaches in Blaenau-Ffestiniog, September marks a gentle transition from the long, sun-drenched days of summer to the shorter, cooler days of fall. With 12 hours of daylight, this month offers a delightful blend of lingering daylight and the gradual encroachment of dusk, well removed from the 16 hours enjoyed in June and July. Following the vibrant summer months, September's daylight duration reflects a notable decrease, yet still provides ample opportunity for exploration and outdoor activities. As the days grow shorter, one can savor those warm early autumn evenings before the shift towards the chillier winter months, which are characterized by a significant drop down to just 8 hours of daylight by November.
As September unfolds in Blaenau-Ffestiniog, the gentle breezes begin to reflect the shifting seasons, with an average wind speed of 2.9 m/s (7 mph). This marks a slight decrease from the slightly more invigorating summer months, particularly July, which experiences its calmest whispers of wind at 2.5 m/s (6 mph). While the autumn chill starts to creep in, September maintains a mellower atmosphere compared to the brisker gusts of late spring, hinting at the tranquil beauty of early fall. As the month progresses, one can anticipate a gradual upturn in wind speeds in October, offering a taste of the more dynamic conditions that autumn has to offer. Overall, September serves as a cozy bridge, where the fading summer meets the promising allure of autumn winds.
The weather in Blaenau-Ffestiniog 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 Blaenau-Ffestiniog and find detailed weather information for every month.
In September, temperatures range from a minimum of 1°C (35°F) to a maximum of 27°C (81°F), with an average of 13°C (55°F). The month is characterized by relatively high humidity at 85% and experiences significant rainfall, with 126 mm (5.0 in) over 16 days. In contrast, January offers much colder conditions, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 13°C (55°F), averaging around 5°C (41°F). Precipitation in January is slightly lower at 103 mm (4.0 in) over 15 days and humidity is higher at 89%. For a detailed view of January conditions, you can check Blaenau-Ffestiniog weather in January.
September and February present quite different weather patterns. In September, temperatures typically range from a chilly 1°C (35°F) at night to a warm 27°C (81°F) during the day, averaging around 13°C (55°F). The month is characterized by a moderate level of precipitation, with about 126 mm (5.0 in) falling over 16 days and humidity levels sitting at a balmy 85%. In contrast, February is much colder, with temperatures dipping as low as -5°C (22°F) and peaking at 18°C (65°F), averaging only 5°C (41°F). The precipitation rises slightly to 147 mm (5.8 in) over 17 days, and humidity remains high at 88%. For more specifics on February weather, you can check Blaenau-Ffestiniog weather in February.
When comparing the weather in September and March, significant differences emerge. September typically boasts milder temperatures, with minimums around 1°C (35°F) and maximums reaching up to 27°C (81°F), offering an average of 13°C (55°F). In contrast, March experiences colder conditions, with minimum temperatures dropping to -7°C (20°F) and a maximum of 17°C (64°F), resulting in an average temperature of 6°C (43°F). Both months see similar precipitation levels, with September receiving 126 mm (5.0 in) over 16 days and March slightly higher at 141 mm (5.6 in) over 18 days. Humidity levels are also comparable, hovering around 85% in September and slightly higher at 86% in March. For a more detailed look, you can check out Blaenau-Ffestiniog weather in March.
When comparing the weather in September and April, there are notable differences in temperature and precipitation. September boasts a more moderate climate, with temperatures ranging from a low of 1°C (35°F) to a high of 27°C (81°F), and an average of 13°C (55°F). It experiences higher precipitation, totaling 126 mm (5.0 in) over 16 days, alongside relatively high humidity at 85%. In contrast, April tends to be cooler, with temperatures varying from -3°C (27°F) to 22°C (72°F) and an average of 8°C (47°F). This month sees less precipitation, amounting to 65 mm (2.5 in) over 12 days, and slightly lower humidity at 84%. For more information, you can visit Blaenau-Ffestiniog weather in April.
September and May offer contrasting weather experiences. In September, temperatures range from a chilly 1°C (35°F) at night to a warm maximum of 27°C (81°F) during the day, with an average of 13°C (55°F). The month also sees significant rainfall, totaling 126 mm (5.0 inches) over 16 days, accompanied by high humidity levels at 85%. In contrast, May has a cooler temperature spectrum, with nighttime lows dropping to -1°C (31°F) and daytime highs reaching 26°C (79°F), averaging 11°C (51°F). Rainfall in May is lighter, totaling 88 mm (3.5 inches) across 14 days, and the humidity is slightly lower at 79%. For more details on May weather, you can refer to Blaenau-Ffestiniog weather in May.
In September, the weather showcases a broader temperature range with minimums dipping to 1°C (35°F) and maximums reaching 27°C (81°F), resulting in an average of 13°C (55°F). This month also experiences higher precipitation levels at 126 mm (5.0 in) spread over 16 days, coupled with a humidity level of 85%. In contrast, June offers a milder climate, with minimum temperatures at 5°C (41°F) and maximums hitting 28°C (82°F), giving an average of 14°C (57°F). The precipitation in June is slightly lower, totaling 102 mm (4.0 in) over 14 days, and the humidity is a bit less at 81%. Overall, while both months experience variable temperatures and some rainfall, September tends to be wetter and cooler compared to the relatively warmer and drier June. For more information, you can check Blaenau-Ffestiniog weather in June.
When comparing the weather in September and July, September tends to be cooler, with minimum temperatures dropping to 1°C (35°F) compared to July's minimum of 6°C (42°F). The average temperature in September is slightly higher at 13°C (55°F), but July has a marginally warmer maximum temperature of 28°C (83°F) compared to September's max of 27°C (81°F). In terms of rainfall, September experiences more precipitation, totaling 126 mm (5.0 in) over 16 days, while July sees 98 mm (3.9 in) over 14 days. Additionally, September has higher humidity levels at 85%, compared to July's 78%. For more detailed information, you can visit Blaenau-Ffestiniog weather in July.
In comparing the weather of September and August, we see notable differences. September has cooler temperatures, with a minimum of 1°C (35°F) and an average of 13°C (55°F), whereas August experiences milder conditions, starting at a minimum of 6°C (43°F) and averaging 15°C (59°F). Both months share a maximum temperature of around 27°C (81°F), but September tends to be wetter, receiving 126 mm (5.0 in) of precipitation over 16 days compared to August's 153 mm (6.0 in) over 21 days. Humidity is slightly higher in September at 85%, compared to 79% in August. For a more detailed look at August weather patterns, visit Blaenau-Ffestiniog weather in August.
September and October present a notable transition in weather patterns. In September, temperatures range from a minimum of 1°C (35°F) to a maximum of 27°C (81°F), with an average temperature of 13°C (55°F). Precipitation during this month totals 126 mm (5.0 in), falling over 16 days, while humidity stands at 85%.
In contrast, October sees a drop in average temperatures to 10°C (50°F), with minimums plummeting to -4°C (26°F) and maximums capping at 21°C (69°F). Rainfall increases to 163 mm (6.4 in), occurring on 19 days, with humidity rising slightly to 90%. This shift highlights the cooler and wetter conditions typical of October compared to the relatively warmer September. For more detailed weather insights, check out Blaenau-Ffestiniog weather in October.
In September, the weather starts to transition from summer, with temperatures ranging from a minimum of 1°C (35°F) to a comfortable maximum of 27°C (81°F) and an average of 13°C (55°F). This month typically experiences significant rainfall, with 126 mm (5.0 in) distributed over 16 days, and humidity levels around 85%.
By November, the temperatures take a notable dip, with minimums dropping to -2°C (29°F) and an average of 7°C (45°F), peaking at just 14°C (58°F). Rainfall increases slightly to 133 mm (5.2 in) over 19 days, accompanied by an uptick in humidity to 91%. The change from September to November marks a shift to cooler and wetter conditions. For those interested in more detailed information, please refer to Blaenau-Ffestiniog weather in November.
In September, the weather is notably milder, with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 27°C (81°F) and an average of 13°C (55°F). The month sees about 126 mm (5.0 in) of precipitation over 16 days, accompanied by a relatively high humidity of 85%. In contrast, December brings chillier temperatures, with a minimum of -6°C (21°F) and a maximum of 12°C (54°F), averaging 6°C (43°F). Precipitation increases to 165 mm (6.5 in) over 20 days, and humidity rises slightly to 89%. For a detailed look at the weather conditions, check out Blaenau-Ffestiniog weather in December.
September in Blaenau-Ffestiniog brings a distinct shift in weather, marking a transition from the lingering warmth of summer to the cooler embrace of autumn. With an average temperature around 13°C, the month showcases comfortable days but also invites cooler evenings, reminding us that winter is on the horizon. The increased precipitation—with rain on nearly half the days—adds to the lush, vibrant scenery that the region is known for, while high humidity levels create a crisp, refreshing atmosphere. This blend of warmth and moisture sets September apart, making it a unique time to experience the stunning landscapes. For a deeper dive into what to expect year-round, check out Blaenau-Ffestiniog Climate.