September Weather in Bannockburn, United Kingdom

Last updated: March 17, 2025

September in Bannockburn, United Kingdom showcases a wide range of temperatures, with maximums reaching up to 26°C (79°F) and minimums dipping down to -1°C (30°F). The month's average temperature rests at a comfortable 12°C (55°F), reflecting the transition into autumn. Visitors can expect a fair amount of precipitation, totaling 84 mm (3.3 in) over the month, distributed across approximately 14 rainy days. Coupled with a high humidity level of 88%, this weather creates a distinctly fresh and crisp atmosphere, perfect for exploring the area's rich history and picturesque landscapes.

September Temperature in Bannockburn

In September, Bannockburn experiences a gentle transition from summer to autumn, with temperatures beginning to cool down. The minimum temperature hovers around -1°C (30°F), while the average reaches a comfortable 12°C (55°F), creating an inviting atmosphere for outdoor activities. Although the maximum can still climb to a pleasant 26°C (79°F), indicating occasional warm days reminiscent of summer, there's an unmistakable shift in the air as evenings turn crisper. This month not only showcases the beauty of changing foliage but also sets the stage for the chillier months to come, making it a delightful time to enjoy the scenic surroundings while embracing the blend of lingering warmth and the first hints of autumn.

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

The chart illustrates September temperature patterns in Bannockburn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394042465157595854494440
Data source: Temperature data for Bannockburn 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 Bannockburn

In September, Bannockburn experiences a moderate precipitation amount of 84 mm (3.3 in), accompanied by roughly 14 rainy days. This marks a slight decrease from the wetter months of August and October, which see significantly higher totals of 119 mm (4.7 in) and 125 mm (4.9 in), respectively. The transition into autumn is evident, as rainfall begins to settle into a more consistent pattern, reminiscent of the spring months without the extremes. While the skies bring consistent showers, September's precipitation still reflects the tail end of summer's influence—providing a blend of warmth and moisture that nourishes the landscape as it prepares for the fall season.

September Precipitation Trends in Bannockburn

The chart displays monthly precipitation patterns in Bannockburn, 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.
JanFebMarAprMayJunJulAugSepOctNovDec781291054369100891198412599109
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bannockburn

In Bannockburn, United Kingdom, September brings a notable shift in humidity levels as they rise to 88%, echoing the higher figures typically seen in the winter months. Following a summer marked by relatively stable humidity around 82%, September's increase signals the approach of the wetter autumn season. This uptick aligns with the gradual trend of rising humidity that climaxes in the colder months, with October and November often reaching their peak at 90% and 92%, respectively. As the days begin to shorten and the weather cools, residents can expect a more saturated atmosphere, illustrating the region's characteristic transition from the end of summer into fall.

September Average Humidity in Bannockburn

This chart illustrates the average monthly humidity levels in Bannockburn, 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 Bannockburn

As September rolls in Bannockburn, the UV Index settles at 5, indicating a moderate level of sun exposure. Following the peak summer months, where the UV Index reached a high of 8 in July and June, fall sees a slight retreat in intensity, allowing for safer outdoor activities with a burn time of 30 minutes. This trend highlights a gradual shift from the more intense summer sun, but reminders of caution remain essential as one enjoys the early autumn days. It's important to stay protected even during this transitional month. For more detailed insights, you can explore the Bannockburn UV Index.

Maximum UV Index Levels in Bannockburn for September

The chart shows the monthly maximum UV Index (UVI) for Bannockburn 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.
JanFebMarAprMayJunJulAugSepOctNovDec123568865311
Data source: Bannockburn 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 Bannockburn

As summer transitions into autumn, September in Bannockburn experiences a delightful 266 hours of sunshine, a gentle decline from the peak of 381 hours in May. This gradual decrease is mirrored in the overall trend of the year, where longer daylight hours give way to the charm of cozy fall evenings. The sun-soaked days of June and July, with over 360 hours, provide a vibrant backdrop, while August’s strong 334 hours hints at summer's lingering embrace. As the days shorten further into October with only 188 hours, September offers a picturesque farewell to summer, striking a warm balance just before the chill of autumn sets in.

Monthly Sunshine Duration in Bannockburn: September Highlighted

The September sunshine duration represents the total number of hours Bannockburn 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.
JanFebMarAprMayJunJulAugSepOctNovDec66h118h170h313h381h365h373h334h266h188h101h65h
Data source: Bannockburn September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bannockburn During September

In Bannockburn, United Kingdom, the likelihood of experiencing sunny weather in September is relatively low, with only a 16% chance of sun. This statistic marks a notable decline from the sunnier months of April (44%) and May (27%), suggesting that summer is transitioning into autumn. Interestingly, September's sunny potential is on par with October and December, indicating a trend of diminishing sunshine as the year progresses. As the days grow shorter and cooler, the promise of golden rays becomes a rare treasure, urging residents and visitors alike to seize those fleeting sunny moments.

Percentage of Sunny Days in September in Bannockburn

The chart illustrates the percentage of sunny days in Bannockburn 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 Bannockburn experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%22%18%44%27%20%26%22%16%17%28%16%
Data source: Bannockburn September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bannockburn in September

As September unfolds in Bannockburn, the days begin to transition, offering an inviting 12 hours of daylight. This marks a noticeable decline from the sun-drenched 17 hours of summer in June, heralding the slow shift toward autumn. With each passing month, daylight hours gradually decrease, revealing a pattern that highlights the longer days of spring and summer, while it gently eases toward the shorter, cozy days of the colder months ahead. The balance of light and shadow in September creates a unique ambiance, perfect for enjoying the vibrant hues of fall.

Average Daylight Hours in Bannockburn for September

The chart illustrates the variation in daylight duration in Bannockburn throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 40m9h 35m11h 53m14h 14m16h 21m17h 29m16h 52m14h 57m12h 40m10h 20m8h 12m7h 2m
Data source: Bannockburn daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Bannockburn

As September rolls into Bannockburn, the wind begins to pick up again, bringing an average speed of 3.0 m/s (7 mph), much like the calm of January. This marks a slight recovery from the lighter breezes of summer, where July and August saw average speeds dip to 2.2 m/s (5 mph) and 2.4 m/s (5 mph), respectively. The transition into autumn ushers in a gradual increase in wind strength, hinting at the seasonal change ahead. With October bringing a more noticeable surge to 3.8 m/s (9 mph) and November following suit at 4.1 m/s (9 mph), the month of September serves as a gentle reminder of the dynamic weather patterns that characterize this vibrant region. The rhythm of the wind in Bannockburn sets the scene for the enchanting transformations of fall, where each breeze carries the promise of change.

Average September Wind Speed in Bannockburn

The chart displays monthly wind speed patterns in Bannockburn, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.05.04.12.72.93.22.22.43.0 m/s3.84.13.2
Data source: Bannockburn September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Bannockburn Compares to Other Months

The weather in Bannockburn 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 Bannockburn 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 (30°F) to a maximum of 26°C (79°F), with an average of 12°C (55°F). This month also experiences about 84 mm (3.3 in) of precipitation over 14 days, coupled with high humidity at 88%. In contrast, January sees cooler temperatures, with averages dropping to a minimum of -7°C (21°F) and a maximum of 13°C (56°F), resulting in an average of only 4°C (40°F). Precipitation slightly decreases to 78 mm (3.1 in) over 11 days, while humidity rises to 90%. For more detailed information, check out Bannockburn weather in January.

September and February present stark contrasts in weather conditions. In September, temperatures range from a minimum of -1°C (30°F) to a maximum of 26°C (79°F), with an average of 12°C (55°F). The month sees about 84 mm (3.3 in) of precipitation over 14 days, accompanied by high humidity levels of 88%. In contrast, February is considerably colder, with temperatures ranging from -11°C (12°F) to a maximum of 14°C (58°F) and an average of 5°C (41°F). This month experiences increased precipitation of 129 mm (5.1 in) over 17 days, while humidity remains steady at 88%. For a deeper look at the specific conditions during this winter month, you can visit Bannockburn weather in February.

In September, temperatures range from a chilly -1°C (30°F) at night to a pleasant 26°C (79°F) during the day, leading to an average of 12°C (55°F). The month experiences 84 mm (3.3 in) of precipitation over approximately 14 days, with high humidity levels at 88%. In contrast, March tends to be cooler, with minimum temperatures dropping to -5°C (23°F) and maximums reaching 17°C (63°F), averaging around 6°C (42°F). Precipitation is slightly higher at 105 mm (4.1 in) spread over 17 days, and humidity remains similar at 86%. For more detailed insights, you can visit Bannockburn weather in March.

When comparing the weather in September and April, notable differences emerge in temperature and precipitation. September tends to be milder, with average temperatures around 12°C (55°F) and maximums reaching 26°C (79°F), while April is cooler, with an average of 8°C (46°F) and a maximum of 22°C (72°F). Additionally, September experiences more precipitation, totaling 84 mm (3.3 in) over about 14 days, compared to April's lighter 43 mm (1.7 in) across 10 days. Humidity levels are similar, with September at 88% and April slightly lower at 85%. For more specific insights into April's climate, you can check Bannockburn weather in April.

September and May exhibit similar maximum temperatures, both peaking at 26°C (79°F), creating a comfortable atmosphere for outdoor activities. However, September generally boasts a slightly warmer average temperature of 12°C (55°F) compared to May's average of 11°C (51°F). Rainfall also varies, with September receiving 84 mm (3.3 in) over 14 days, which is higher than May's 69 mm (2.7 in) under the same frequency of rainfall days. Additionally, September’s humidity is elevated at 88%, slightly surpassing May's 80%, contributing to a more muggy feel later in the year. For more detailed weather insights, you can check Bannockburn weather in May.

In September, temperatures can drop down to a chilly -1°C (30°F) at their lowest, with average highs reaching a pleasant 26°C (79°F). In contrast, June experiences warmer temperatures, with a minimum of 5°C (41°F) and maximums peaking at 29°C (84°F). While September sees an average of 84 mm (3.3 in) of precipitation over 14 days, June has slightly higher rainfall at 100 mm (3.9 in) across 15 days. Humidity levels remain relatively similar, with September at 88% and June slightly lower at 83%. For a detailed look at June weather, you can visit Bannockburn weather in June.

When comparing the weather in September and July, July tends to be warmer and slightly more humid. July features minimum temperatures around 6°C (43°F) and maximum temperatures reaching up to 29°C (84°F), with an average of 15°C (60°F). In contrast, September sees cooler conditions with minimums of -1°C (30°F) and highs of 26°C (79°F), averaging 12°C (55°F). While both months experience similar precipitation levels—89 mm (3.5 in) in July and 84 mm (3.3 in) in September—the humidity in September is higher at 88% compared to July's 82%. For more detailed insights about July's weather, you can visit Bannockburn weather in July.

In comparing the weather of September and August, September presents cooler temperatures with a minimum of -1°C (30°F) and an average of 12°C (55°F), while August maintains slightly warmer conditions with a minimum of 6°C (43°F) and an average of 15°C (58°F). Both months share a similar maximum temperature of around 26°C (79°F). However, September experiences less precipitation, totaling 84 mm (3.3 in) over 14 days, compared to August’s heavier rainfall of 119 mm (4.7 in) over 17 days. Additionally, September has higher humidity at 88%, overshadowing August’s 82%. For more details on August weather, you can explore Bannockburn weather in August.

September and October present notable shifts in weather patterns. In September, temperatures range from a minimum of -1°C (30°F) to a pleasant maximum of 26°C (79°F), with an average of 12°C (55°F). There is a total precipitation of 84 mm (3.3 in) over 14 days, and humidity levels sit around 88%. In contrast, October brings cooler temperatures with a minimum of -2°C (28°F) and a peak of just 19°C (67°F), averaging at 10°C (50°F). Precipitation increases to 125 mm (4.9 in) across 18 days, accompanied by a slight rise in humidity to 90%. For a detailed look at the October weather patterns, you can check Bannockburn weather in October.

September tends to be warmer than November, with average temperatures reaching 12°C (55°F) compared to November's cooler 7°C (44°F). While September can enjoy a maximum of 26°C (79°F), November's highs only reach 14°C (58°F). Both months experience a fair amount of precipitation, but November sees slightly more rain with 99 mm (3.9 in) over 16 days, compared to September's 84 mm (3.3 in) over 14 days. Humidity levels also climb in November, averaging 92% compared to September's 88%. For more details on November weather, check out Bannockburn weather in November.

In September, the weather is relatively mild, with temperatures ranging from a brisk minimum of -1°C (30°F) to a comfortable maximum of 26°C (79°F), and an average of 12°C (55°F). With 14 days of precipitation totaling 84 mm (3.3 in), September maintains a humidity level of 88%. In contrast, December usher in colder conditions, with temperatures dipping between -6°C (21°F) and reaching a maximum of 12°C (55°F), and an average of only 5°C (40°F). Additionally, December sees a slight increase in precipitation, totaling 109 mm (4.3 in) over 17 days, and maintains a similar humidity level of 89%. For a more detailed look at the December climate, visit Bannockburn weather in December.

Compare Bannockburn's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Bannockburn

As September unfolds in Bannockburn, the weather transitions from the warmth of summer to the cooler embrace of autumn. With maximum temperatures reaching up to 26°C (79°F), it still retains some summer-like qualities, but the average dips to a cozy 12°C (55°F), hinting at the seasonal shift. However, visitors should brace for a wetter month, with 14 days of precipitation accumulating to 84 mm (3.3 in), making it one of the rainier periods of the year. The high humidity level of 88% can make the air feel quite heavy at times, which sets September apart from the drier months preceding it. Embrace the changing landscape and check out more about how the climate shapes Bannockburn's beauty in every season at Bannockburn Climate.