September Weather in Llandrindod Wells, United Kingdom

Last updated: March 17, 2025

In September, Llandrindod Wells experiences a diverse climate, with maximum temperatures reaching up to 26°C (80°F) and an average temperature of 12°C (55°F). Visitors can expect a refreshing atmosphere, though nights can dip to a cool 1°C (34°F). The month sees considerable precipitation, accumulating around 85 mm (3.3 in) over 14 days, contributing to the region's lush landscapes. With humidity levels around 85%, the air carries a crisp freshness, making it ideal for outdoor adventures amid the picturesque Welsh scenery.

September Temperature in Llandrindod Wells

As September arrives in Llandrindod Wells, the temperature begins to showcase the transition from the warmth of summer to the briskness of autumn. With a minimum of 1°C (34°F) and an average temperature of 12°C (55°F), the chill is a gentle reminder that winter is just around the corner. However, the maximum temperature can still reach a comforting 26°C (80°F), offering splendid days for outdoor activities. This month marks a noticeable shift from the balmy highs of summer, reflecting a steady descent in temperatures as the year progresses. The crisp mornings and mild afternoons make September a delightful month, inviting residents and visitors alike to embrace the changing seasons in this picturesque Welsh locale.

September Weather in Llandrindod Wells: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Llandrindod Wells, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394042455157595854494441
Data source: Temperature data for Llandrindod Wells 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 Llandrindod Wells

In September, Llandrindod Wells experiences an average precipitation of 85 mm (3.3 in), with rainfall spreading across approximately 14 days. This marks a slight decrease from the wetter months of August and October, where the town receives 106 mm (4.2 in) and 123 mm (4.8 in) respectively. The transition into autumn is characterized by a gradual increase in rainfall days, yet September remains relatively mild compared to the heavier downpours typical later in the year. As summer gives way to fall, residents can expect more frequent, albeit less intense, showers, setting the stage for the lush landscapes that come with autumn in this charming region.

September Precipitation Trends in Llandrindod Wells

The chart displays monthly precipitation patterns in Llandrindod Wells, 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.
JanFebMarAprMayJunJulAugSepOctNovDec791151156088948210685123104129
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Llandrindod Wells

As summer transitions into autumn, September brings a pleasant change in humidity levels in Llandrindod Wells. With an average of 85%, the humidity experiences a subtle increase compared to the previous month, reflecting the lingering warmth of late summer. This seasonal shift marks a drop from the highs of July and August, when humidity levels hovered around 78% to 79%. However, the rise in September doesn't quite reach the intense moisture of the colder months ahead, such as October and November, where humidity peaks at 90% and 91% respectively. Overall, September's humidity creates a comfortable atmosphere, offering a brief reprieve before the more pronounced dampness of fall takes hold.

September Average Humidity in Llandrindod Wells

This chart illustrates the average monthly humidity levels in Llandrindod Wells, 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 Llandrindod Wells

As summer fades into autumn, September in Llandrindod Wells sees the UV Index remain at a notable 6, indicating a high level of sun exposure. After peaking at a very high rating of 8 in June and July, the UV Index slightly reduces, allowing for a more manageable burn time of 25 minutes. This transitional month signals a shift from the intense summer sun, yet it still demands awareness and protection from UV rays. Residents and visitors should remember that even at this stage, the sun can still pose risks to unprotected skin. Stay informed and plan accordingly with the help of the Llandrindod Wells UV Index for optimal sun safety!

Maximum UV Index Levels in Llandrindod Wells for September

The chart shows the monthly maximum UV Index (UVI) for Llandrindod Wells 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: Llandrindod Wells 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 Llandrindod Wells

September in Llandrindod Wells brings a delightful blend of warmth and light, boasting 292 hours of sunshine—a continuation of summer's embrace before autumn takes hold. As the year progresses, we see a clear trend: the days are at their sunniest from late spring through summer, peaking in July at an impressive 402 hours. While September doesn’t quite match the height of summer sunshine, it still outshines the gloom of the colder months ahead, with notable hours compared to the drizzly November and December. This gentle transition into autumn is marked by a softened yet vibrant light, making it a splendid time for enjoying the natural beauty of Llandrindod Wells.

Monthly Sunshine Duration in Llandrindod Wells: September Highlighted

The September sunshine duration represents the total number of hours Llandrindod Wells 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.
JanFebMarAprMayJunJulAugSepOctNovDec84h138h200h311h386h370h402h360h292h220h114h94h
Data source: Llandrindod Wells September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Llandrindod Wells During September

In Llandrindod Wells, the likelihood of sunny weather in September aligns closely with the summer’s trend, reflecting a modest 19% chance of sunshine. This percentage is consistent with the less sunny months of August and October, suggesting that while the warmth of summer may linger, it doesn't guarantee bright days. Interestingly, September's sunshine probability is a noticeable dip from April’s peak of 48%, which marks the transition into the autumn season. As the year progresses, the sun's presence gradually diminishes, illustrating a clear seasonal shift that beckons cozy sweaters and warm drinks as autumn takes hold.

Percentage of Sunny Days in September in Llandrindod Wells

The chart illustrates the percentage of sunny days in Llandrindod Wells 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 Llandrindod Wells experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%16%22%48%25%22%33%19%19%15%21%13%
Data source: Llandrindod Wells September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Llandrindod Wells in September

As summer gracefully gives way to autumn, September in Llandrindod Wells experiences a notable shift in daylight duration. With 12 hours of daylight, the month marks a gentle transition from the longer days of July and August, which boast 16 and 14 hours, respectively. This guiding trend reveals a steady decline post-summer, as daylight gradually diminishes in anticipation of the shorter days of October, which offers only 10 hours. September's balance of light suggests a perfect opportunity to enjoy the lingering warmth and vibrant landscapes before the early evenings of autumn settle in.

Average Daylight Hours in Llandrindod Wells for September

The chart illustrates the variation in daylight duration in Llandrindod Wells throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 17m9h 55m11h 54m13h 57m15h 44m16h 40m16h 10m14h 34m12h 36m10h 34m8h 45m7h 46m
Data source: Llandrindod Wells daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Llandrindod Wells

As September unfolds in Llandrindod Wells, the gentle whisper of the September wind settles into a moderate average speed of 3.0 m/s (7 mph). This marks a transitional phase as the breezes begin to cool from the vibrant summer months, where wind speeds peaked around 3.8 m/s (8 mph) in May and 3.5 m/s (8 mph) in August. Following the summer lull, the wind picks up slightly again in October, hinting at the approaching autumn chill, which typically brings gusts averaging 4.4 m/s (10 mph). Overall, the trend shows a gradual decline in wind intensity from the summer peak, providing a softer, more tranquil atmosphere as Llandrindod Wells prepares for the vibrant colors and brisk days of fall.

Average September Wind Speed in Llandrindod Wells

The chart displays monthly wind speed patterns in Llandrindod Wells, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.25.04.23.13.83.12.63.53.0 m/s4.43.74.5
Data source: Llandrindod Wells September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Llandrindod Wells Compares to Other Months

The weather in Llandrindod Wells 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 Llandrindod Wells and find detailed weather information for every month.

September and January showcase contrasting weather patterns. In September, temperatures range from a minimum of 1°C (34°F) to a comfortable maximum of 26°C (80°F), with an average temperature of 12°C (55°F). The month experiences approximately 85 mm (3.3 in) of precipitation over 14 days, accompanied by a humidity level of 85%. In contrast, January is much cooler, featuring temperatures that span from a minimum of -8°C (19°F) to a maximum of 12°C (55°F), with an average of just 4°C (39°F). Precipitation is slightly lower at 79 mm (3.1 in) over 12 days, while humidity rises slightly to 89%. For more detailed insights on January weather, check out Llandrindod Wells weather in January.

In September, the weather typically features a minimum temperature of 1°C (34°F) and averages around 12°C (55°F), with daytime highs reaching up to 26°C (80°F). This month experiences an average precipitation of 85 mm (3.3 in) over 14 days, contributing to a relatively high humidity level of 85%. In contrast, February is much colder, with minimum temperatures dropping to -9°C (16°F) and average temperatures around 4°C (40°F). The maximum temperature in February reaches only 16°C (61°F) and precipitation rises to 115 mm (4.5 in) spread over 17 days, resulting in an even higher humidity level of 88%. For more detailed information, check out Llandrindod Wells weather in February.

September and March present contrasting weather patterns. In September, the temperatures are generally warmer, with a minimum of 1°C (34°F) and an average of 12°C (55°F), reaching a maximum of 26°C (80°F). The month sees about 85 mm (3.3 in) of precipitation over 14 days, accompanied by a humidity level of 85%. In contrast, March is chillier, starting with a minimum of -8°C (18°F) and averaging at 5°C (42°F), peaking at 18°C (66°F). It typically experiences higher precipitation at 115 mm (4.5 in) across 17 days, coupled with a similar humidity level of 86%. For a more detailed look at the weather in this month, check out Llandrindod Wells weather in March.

September and April present contrasting weather patterns, reflecting the transition from summer to autumn and the arrival of spring, respectively. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 26°C (80°F), resulting in an average of 12°C (55°F). This month sees higher precipitation, with 85 mm (3.3 in) spread over 14 days and humidity levels at 85%. In contrast, April experiences cooler conditions with temperatures ranging from a minimum of -4°C (26°F) to a maximum of 20°C (69°F), averaging 7°C (46°F). Precipitation is lower at 60 mm (2.4 in) across 11 days, accompanied by slightly lower humidity of 84%. For more detailed information on April weather, check out Llandrindod Wells weather in April.

When comparing the weather in September and May, we see some notable differences. September typically experiences a wider range of temperatures, with a minimum of 1°C (34°F), an average of 12°C (55°F), and a maximum of 26°C (80°F). The humidity is higher in September at 85%, along with 85 mm (3.3 in) of precipitation over 14 days. In contrast, May sees slightly cooler temperatures, with a minimum of -2°C (29°F), an average of 10°C (51°F), and a maximum of 24°C (76°F). Precipitation is similar, with May receiving 88 mm (3.5 in) over the same number of rainy days, but with lower humidity at 79%. For more detailed insights about May weather, you can check Llandrindod Wells weather in May.

September weather tends to be cooler than June, with minimum temperatures dropping to 1°C (34°F) compared to June’s 4°C (39°F). The average temperature in September is 12°C (55°F), while June sees a higher average of 14°C (57°F). Although September reaches a maximum of 26°C (80°F), it closely mirrors June’s maximum of 27°C (81°F). Both months experience significant precipitation, with September receiving 85 mm (3.3 in) over 14 days and June slightly wetter with 94 mm (3.7 in) over 15 days. Humidity levels in September are higher at 85%, compared to June’s 81%. For a more detailed look at June weather, you can check out Llandrindod Wells weather in June.

In comparing the weather patterns of September and July, we see notable differences in temperature and humidity levels. September tends to be cooler, with a minimum temperature of 1°C (34°F) and an average of 12°C (55°F), contrasted with July's relatively warmer minimum of 4°C (40°F) and average of 15°C (60°F). While both months experience similar precipitation levels—85 mm (3.3 in) in September and 82 mm (3.2 in) in July—September is slightly wetter, with rain occurring on 14 days compared to 13 days in July. Additionally, September has higher humidity at 85%, compared to July's 78%. For more detailed information, you can check the Llandrindod Wells weather in July.

In comparing the weather between September and August, September features cooler temperatures, with a minimum of 1°C (34°F) and an average of 12°C (55°F), slightly lower than August's minimum of 5°C (42°F) and average of 14°C (58°F). Although September reaches a similar maximum temperature of 26°C (80°F), the overall feel is cooler and wetter, with 85 mm (3.3 in) of precipitation over 14 days compared to August's 106 mm (4.2 in) over 17 days. Additionally, September has a higher humidity level at 85%, creating a damp feeling, while August maintains a slightly lower humidity of 79%. For more details on how these conditions manifest, check Llandrindod Wells weather in August.

As the seasons transition from September to October, the weather experiences notable changes. September offers a milder climate with average temperatures around 12°C (55°F), ranging from a minimum of 1°C (34°F) to a maximum of 26°C (80°F). In contrast, October sees cooler conditions, with average temperatures dropping to 10°C (50°F) and a maximum of 20°C (69°F), accompanied by a chilling minimum of -3°C (26°F). Precipitation also increases in October, reaching 123 mm (4.8 in) over 16 days, compared to September's 85 mm (3.3 in) over 14 days, contributing to higher humidity levels of 90% compared to September's 85%. For a detailed look at October's weather, check out Llandrindod Wells weather in October.

In September, temperatures in Llandrindod Wells range from a minimum of 1°C (34°F) up to a pleasant maximum of 26°C (80°F), with an average temperature of 12°C (55°F). The month experiences significant humidity at 85%, with around 85 mm (3.3 in) of precipitation over 14 days. In contrast, November brings a noticeable drop in temperatures, with a minimum of -4°C (25°F) and a maximum of 15°C (58°F), resulting in an average of only 6°C (44°F). This month sees increased precipitation levels, totaling 104 mm (4.1 in), spread across 17 days, and the humidity rises to 91%. For more detailed insights, you can check Llandrindod Wells weather in November.

September and December feature distinct weather patterns, with September being significantly warmer. In September, temperatures range from a minimum of 1°C to a maximum of 26°C, with an average of 12°C, while December experiences much chillier conditions, with temperatures ranging from -8°C to a maximum of 12°C and an average of 5°C. Precipitation is also higher in December, totaling 129 mm over 18 days compared to 85 mm over 14 days in September. Additionally, the humidity is slightly higher in December at 89% compared to September’s 85%. For more detailed information on December weather, you can view Llandrindod Wells weather in December.

Compare Llandrindod Wells's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Llandrindod Wells

As September unfolds in Llandrindod Wells, the weather marks a transition from the warmth of summer to the coolness of autumn. With temperatures averaging around 12°C, the crisp air becomes a refreshing change, particularly after the highs of the previous months. Rainfall is a recurring theme this month, with about 14 days of precipitation, contributing to a humidity level that lingers around 85%. This mix of cool temperatures and increased rain sets September apart from the sunnier, drier months of summer, allowing the beautiful autumn hues to emerge across the landscape. For those interested in a deeper dive into the region's climate trends, the Llandrindod Wells Climate page provides valuable insights.