September Weather in Ambleside, United Kingdom

Last updated: March 17, 2025

In September, Ambleside, United Kingdom, experiences a temperate climate characterized by maximum temperatures reaching up to 26°C (79°F) and an average of 12°C (55°F). The month showcases a mix of weather, with minimum temperatures dipping to 2°C (36°F). Rainfall is a notable feature, with a total precipitation of 128 mm (5.0 in) over the course of 17 days, keeping humidity levels elevated at 88%. This blend of cool temperatures and frequent rain adds a unique charm to the stunning landscapes of Ambleside, making it an intriguing time to explore the area's natural beauty.

September Temperature in Ambleside

As summer fades into autumn, September brings a delightful transition in Ambleside, UK, with temperatures that reflect the crispness of the forthcoming season. The minimum temperature settles around 2°C (36°F), offering a refreshing bite, while daytime highs reach a pleasant 26°C (79°F), creating ideal conditions for outdoor exploration. The average of 12°C (55°F) marks a significant shift from the warmer summer days, yet it's still comfortable enough for long walks amidst the stunning fall foliage. This month captures the essence of change, showcasing the last glimpses of warmth before the colder months set in, inviting both locals and visitors to embrace the beauty of Ambleside's evolving landscape.

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

The chart illustrates September temperature patterns in Ambleside, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394042455156595854494441
Data source: Temperature data for Ambleside 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 Ambleside

In September, Ambleside experiences a notable shift in weather patterns as the transition into autumn begins. With 128 mm (5.0 in) of precipitation spread over 17 days, the month displays a moderate level of rainfall, continuing the trend established in August. This month of overcast skies and occasional downpours reflects the region's characteristic dampness, yet it is less intense than the deluges of October, which typically brings even heavier rain at 174 mm (6.8 in). September also frequently showcases vibrant foliage as the rain nourishes the landscape, making it a captivating time for both nature enthusiasts and photographers alike. As summer fades, the gradual increase in precipitation serves as a reminder of the lingering moody charm that defines Ambleside's weather.

September Precipitation Trends in Ambleside

The chart displays monthly precipitation patterns in Ambleside, 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.
JanFebMarAprMayJunJulAugSepOctNovDec991561345473112108151128174123142
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ambleside

In September, Ambleside experiences a notable fluctuation in humidity, settling at 88%, which is a slight increase from the summer months. This uptick marks a return to the higher levels of humidity characteristic of late autumn, transitioning from the warm conditions of July and August that both hover around 82%. As autumn progresses, humidity continues to climb, peaking in November at 92%, indicating that the region’s weather is becoming increasingly damp. September serves as a bridge, reminding residents that summer’s warmth is waning, paving the way for the crisp, moist air that defines fall in the Lake District.

September Average Humidity in Ambleside

This chart illustrates the average monthly humidity levels in Ambleside, 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.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%85%81%83%82%82%88%90%92%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ambleside

As September rolls into Ambleside, the UV Index settles at 5, categorized as moderate, allowing for a comfortable sun experience with a burn time of around 30 minutes. This marks a gentle decline from the peak summer months, where June and July showcased a striking UV Index of 8, both categorized as very high. The transition from August's high UV Index of 7 paves the way for autumn, presenting a more manageable sun exposure compared to the intense rays of late spring and summer. As daylight wanes, it's still important to stay vigilant and protect your skin during these moderate UV days. For those interested in tracking UV levels throughout the year, visit Ambleside UV Index for comprehensive insights.

Maximum UV Index Levels in Ambleside for September

The chart shows the monthly maximum UV Index (UVI) for Ambleside 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Ambleside 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 Ambleside

September in Ambleside, United Kingdom, continues the trend of diminishing daylight as the summer months fade. With 296 hours of sunshine, it marks a significant drop from the heights of July and May, which brought 406 and 405 hours respectively. Despite the decrease, September offers a comforting blend of warmth and early autumn hues, making it a cherished time for local walks and outdoor activities. The gentle decline in sunlight foreshadows the cozy months ahead, with October expected to deliver just 228 hours of sunshine. Those lingering days of September light entice visitors to explore the stunning landscapes before the more subdued months of fall arrive.

Monthly Sunshine Duration in Ambleside: September Highlighted

The September sunshine duration represents the total number of hours Ambleside 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.
JanFebMarAprMayJunJulAugSepOctNovDec80h145h210h340h405h386h406h358h296h228h114h91h
Data source: Ambleside September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ambleside During September

In September, Ambleside, United Kingdom, experiences a notable decline in sunny weather, with the likelihood of sunshine falling to 18%. This trend seems to mirror the seasonal shift from summer’s warmth into the cooler autumn months. Following the peak of April, where sunshine chances hit 50%, visibility of the sun gradually wanes throughout the summer, settling into a notably less cheerful September. While this month may not be ideal for sun-seekers, it still carries the charm of early autumn, blending crisp air with the picturesque landscapes of the Lake District. As the year progresses, the fading sunshine continues into October, suggesting that September might be one of the last opportunities to catch a few rays before the gray clouds take over.

Percentage of Sunny Days in September in Ambleside

The chart illustrates the percentage of sunny days in Ambleside 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 Ambleside experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec18%23%22%50%29%21%36%22%18%15%25%13%
Data source: Ambleside September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ambleside in September

As summer transitions to autumn in Ambleside, September marks a subtle shift in daylight hours, featuring approximately 12 hours of sunlight. This decline follows the peak of 17 hours in June, illustrating a gradual tapering of brightness as the year progresses. After the vibrant summers, where daylight lingers long into the evening, the reduction to 14 hours in August and then 12 hours in September signals the approach of the darker months ahead. This pattern reflects nature's rhythm, inviting residents and visitors alike to relish the warm hues of early autumn while they still can, before daylight dwindles further to 10 hours in October.

Average Daylight Hours in Ambleside for September

The chart illustrates the variation in daylight duration in Ambleside throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 57m9h 44m11h 54m14h 6m16h 4m17h 6m16h 33m14h 47m12h 38m10h 26m8h 27m7h 22m
Data source: Ambleside daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Ambleside

As September arrives in Ambleside, United Kingdom, the wind takes on a gentle character, with an average speed of 3.0 m/s (7 mph). This marks a continuation of the mild breezes seen throughout August, which also recorded the same wind speed. The transition from summer into autumn is subtle, as the winds remain relatively calm compared to the gustier months that follow. Notably, September’s wind speeds mirror the quiet of July and June, hinting at a serene yet refreshing atmosphere as the landscape begins to change. After a brief dip in the spring months, the winds pick up slightly towards October, foreshadowing the more brisk conditions ahead. This gradual shift in wind speed perfectly encapsulates the tranquil yet dynamic essence of September in Ambleside, inviting both locals and visitors to embrace the changing seasons.

Average September Wind Speed in Ambleside

The chart displays monthly wind speed patterns in Ambleside, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.44.94.22.73.23.02.23.03.0 m/s4.74.23.8
Data source: Ambleside September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Ambleside Compares to Other Months

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

September and January present distinct contrasts in weather patterns. In September, temperatures range from a relatively mild minimum of 2°C (36°F) to a maximum of 26°C (79°F), with an average of 12°C (55°F). The month also sees significant rainfall, totaling 128 mm (5.0 in) over approximately 17 days, while humidity levels hover around 88%. In contrast, January is much colder, with temperatures dipping to a minimum of -6°C (21°F) and peaking at just 12°C (54°F), yielding an average temperature of 4°C (39°F). Precipitation in January is lower at 99 mm (3.9 in) across 13 days, though humidity is slightly higher at 90%. For a more detailed look at what to expect during this winter month, check out Ambleside weather in January.

In comparing the weather of September and February, a distinct contrast emerges. September boasts milder temperatures, with an average high of 26°C (79°F) and a pleasant average of 12°C (55°F), while February experiences much cooler conditions, featuring an average high of only 16°C (62°F) and a low that can drop to -8°C (19°F). Interestingly, both months see a similar number of rainy days—17—but February tends to have slightly higher precipitation levels, accumulating 156 mm (6.1 in) compared to September's 128 mm (5.0 in). Humidity levels remain consistent at 88% in both months, contributing to the overall dampness experienced during this period. For more specific insights into February weather, you can refer to the detailed information available at Ambleside weather in February.

In comparing the weather between September and March, we see distinct differences in temperature and conditions. September features a more temperate climate, with average temperatures ranging from a chilly 2°C (36°F) to a warm 26°C (79°F), while March is significantly cooler, with temperatures dipping as low as -6°C (22°F) and peaking at only 16°C (62°F). Both months experience similar levels of precipitation, with September receiving 128 mm (5.0 in) and March slightly higher at 134 mm (5.3 in), occurring over the same number of rainy days—17. Humidity levels are also comparable, sitting at 88% in September and 86% in March. For more detailed information, you can check Ambleside weather in March.

When comparing the weather in September and April, notable differences emerge. September features a broader temperature range, with minimums around 2°C (36°F) and maximums reaching up to 26°C (79°F), leading to an average temperature of 12°C (55°F). In contrast, April's temperatures are cooler, averaging 7°C (45°F) with minimums dipping to -4°C (25°F) and maximums of 21°C (69°F). Moreover, September experiences significantly more precipitation, totaling 128 mm (5.0 in) over 17 days, while April sees a lighter rainfall amount of 54 mm (2.1 in) across just 10 days. Humidity levels are relatively close, with September at 88% and April slightly lower at 85%. For a detailed look at weather patterns, you can check Ambleside weather in April.

When comparing the weather in September and May, we see some notable differences. September generally experiences milder temperatures, with averages around 12°C (55°F) and highs reaching up to 26°C (79°F), making it warmer on average than May, which has an average temperature of 10°C (51°F) and peaks at 25°C (77°F). However, May tends to have slightly cooler lows, dipping to -1°C (31°F), compared to September's minimum of 2°C (36°F). Furthermore, September is marked by higher precipitation levels, with 128 mm (5.0 in) falling over 17 days, while May sees less rain at 72 mm (2.9 in) across 14 days. Humidity levels are also higher in September at 88%, compared to 80% in May, indicating a more humid and wet start to autumn. For a closer look at May's weather, you can check out Ambleside weather in May.

In comparing the weather of September and June, September presents cooler temperatures, with a minimum of 2°C (36°F) and an average of 12°C (55°F), while June starts with slightly warmer lows at 4°C (40°F) and an average of 14°C (57°F). Both months experience comparable maximum temperatures, with September peaking at 26°C (79°F) and June at 27°C (80°F). Rainfall is somewhat prevalent in both months, but September sees slightly higher precipitation levels at 128 mm (5.0 in) over 17 days, compared to June's 112 mm (4.4 in) over 16 days. Humidity is also higher in September at 88%, compared to June's 83%. For more detailed insights, check out Ambleside weather in June.

When comparing the weather in September and July, September tends to be cooler with average temperatures ranging from 2°C (36°F) to 26°C (79°F), while July sees slightly warmer conditions, with temperatures from 6°C (42°F) to 29°C (84°F). Additionally, September experiences more rainfall, averaging 128 mm (5.0 in) over 17 days compared to July's 108 mm (4.2 in) over 16 days. The humidity is also higher in September at 88%, compared to July's 82%. For those interested in more specific details about the July climate, you can check out Ambleside weather in July.

In comparing the weather of September to that of August, September generally experiences cooler temperatures, with a minimum of 2°C (36°F) and an average of 12°C (55°F), compared to August's minimum of 6°C (43°F) and average of 15°C (59°F). The maximum temperature in September reaches 26°C (79°F), slightly lower than August's 27°C (80°F). Precipitation is also notable, with September receiving 128 mm (5.0 in) over 17 days, while August records a higher total of 151 mm (5.9 in) across 20 days. Interestingly, September has a higher humidity level at 88%, compared to August's 82%. For more details on the weather patterns, you can check Ambleside weather in August.

September and October weather show a notable transition as autumn deepens. September tends to be milder, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 26°C (79°F), averaging 12°C (55°F), while October sees colder temperatures that drop to a minimum of -3°C (26°F) and an average of 10°C (50°F). Precipitation also increases in October, with 174 mm (6.8 in) expected over 20 days, compared to September's 128 mm (5.0 in) over 17 days. Both months have high humidity levels, hovering around 88% in September and slightly higher at 90% in October. For more insights on October weather, you can check Ambleside weather in October.

September and November in Ambleside showcase distinct weather patterns. September generally offers a wider temperature range, with a minimum of 2°C (36°F) and a maximum of 26°C (79°F), averaging around 12°C (55°F). It experiences significant humidity at 88% and 128 mm (5.0 in) of precipitation over 17 days. In contrast, November sees much cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 13°C (56°F), averaging just 7°C (44°F). The humidity slightly increases to 92%, while precipitation remains comparable at 123 mm (4.9 in) over 18 days. For a deeper look into November weather, visit Ambleside weather in November.

September and December present distinctly different weather conditions. In September, temperatures range from a pleasant 2°C (36°F) at night to a warm 26°C (79°F) during the day, with an average of 12°C (55°F). The month experiences around 128 mm (5.0 in) of precipitation over 17 days, coupled with high humidity at 88%. In contrast, December is much colder, with nighttime lows dipping to -6°C (21°F) and daytime highs averaging only 5°C (41°F), peaking at 12°C (53°F). Precipitation increases slightly to 142 mm (5.6 in) over 19 days, with humidity at a similar high of 89%. For more specific insights into December's weather, you can check out Ambleside weather in December.

Compare Ambleside's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Ambleside

As summer gives way to autumn, September in Ambleside showcases a unique blend of weather characteristics that mix warmth with the crispness of fall. While temperatures can reach a pleasant high, they typically average on the cooler side, dipping notably into the chill of night. This month also sees a significant amount of rain, with nearly half of the days experiencing precipitation, resulting in a notably humid atmosphere that can feel quite heavy. These contrasts make September distinctly different from the warmer and drier months of summer, inviting a refreshing, albeit unpredictable, beauty to the region. For a deeper understanding of Ambleside's diverse weather patterns, visit Ambleside Climate.