September Weather in Marlborough, United Kingdom

Last updated: March 17, 2025

In Marlborough, United Kingdom, September showcases a delightful transition as summer meets autumn. With a maximum temperature reaching 29°C (84°F) and an average of 14°C (58°F), the month offers a comfortable warmth, though the temperatures can dip to a cool minimum of 2°C (36°F). Visitors may experience 51 mm (2.0 in) of rainfall over 9 days, contributing to the region’s lush greenery. The humidity level remains high at 82%, creating a refreshing atmosphere amidst the changing seasons. Whether you're exploring the picturesque landscapes or enjoying local festivities, September in Marlborough promises a unique charm.

September Temperature in Marlborough

In Marlborough, United Kingdom, the temperatures in September mark a distinct transition into autumn, showcasing a delightful blend of warmth and crispness. With a minimum temperature around 2°C (36°F), residents can expect cooler mornings, while average highs reaching up to 29°C (84°F) provide lingering warmth from summer. The average temperature settles at a comfortable 14°C (58°F), making it a pleasant time for outdoor activities and exploring the scenic countryside. As the month progresses, the gentle decline from the summer peaks begins to paint a picture of the seasonal shift, signaling the approach of cooler days ahead. This balance of mildness and crispness invites both locals and visitors to relish the charm of Marlborough as it gracefully transitions into autumn.

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

The chart illustrates September temperature patterns in Marlborough, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414245485460646258524643
Data source: Temperature data for Marlborough 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 Marlborough

September in Marlborough ushers in a smoother transition into autumn, characterized by an average precipitation of 51 mm (2.0 in) over 9 days. This marks a slight dip from the typically wetter summer months of July and August, which each recorded 75 mm (3.0 in) of rain. Notably, September's rainfall is lower than the spring months, indicating a shift towards drier conditions as the seasons change. With fewer rainy days compared to the summer, residents can often enjoy more pleasant spells of weather, making it a delightful month for outdoor activities amidst the onset of fall's colorful palette.

September Precipitation Trends in Marlborough

The chart displays monthly precipitation patterns in Marlborough, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5359674372756375511005988
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Marlborough

In Marlborough, United Kingdom, September brings a refreshing shift in humidity, averaging around 82%. As summer draws to a close, there's a notable increase from the drier months of July and August, which recorded 71% and 76% respectively. This bump in humidity serves as a reminder of the lush landscapes typical of the region, transitioning from the warm summer air to the cooler autumn breezes. The trend continues into October, where humidity spikes once again to 90%, suggesting that Marlborough’s residents are preparing for the wet months ahead. Overall, September stands out as a month of balance, offering a comfortable middle ground between the heat of summer and the moisture-laden months to come.

September Average Humidity in Marlborough

This chart illustrates the average monthly humidity levels in Marlborough, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%79%81%71%76%82%91%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Marlborough

As summer transitions to autumn in Marlborough, September presents a UV Index of 6, categorizing exposure as high with a burn time of 25 minutes. This marks a slight decline from the peak values of 8 seen in July and June, indicating that while the sun's intensity is still significant, it’s beginning to diminish as the days grow shorter. Despite the cooling temperatures, residents and visitors should remain vigilant about sun safety during this month, ensuring they take necessary precautions when enjoying the outdoors. For more on UV Index trends throughout the year, visit Marlborough UV Index.

Maximum UV Index Levels in Marlborough for September

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

As summer gives way to autumn, September in Marlborough continues to bask in the warmth of 285 hours of sunshine, a delightful reminder of the season’s lingering charm. This month sees a noticeable decrease in sunlight compared to the sun-drenched peak of July, which boasts an impressive 390 hours. However, September still outshines the earlier months of the year, with more sun than the chilly depths of November and December, hinting at the gradual shift towards winter. The falling sunlight trend from the summer’s peak foreshadows the cooler months ahead, yet September stands as a beautiful bridge, offering a mix of golden days and crisp evenings enjoyed by locals and visitors alike.

Monthly Sunshine Duration in Marlborough: September Highlighted

The September sunshine duration represents the total number of hours Marlborough 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.
JanFebMarAprMayJunJulAugSepOctNovDec96h143h195h311h383h369h390h349h285h232h139h110h
Data source: Marlborough September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Marlborough During September

September in Marlborough, United Kingdom, brings with it a 25% chance of sunny weather, a slight uptick from the summer months but still moderate by seasonal standards. This period is marked by a transition, as the lingering warmth of August fades and the crispness of autumn arrives. While April boasts the highest likelihood of sunshine at 52%, the chances tighten as fall approaches, with September’s sun probability closely resembling February and October’s figures. Overall, this month may offer occasional sunny spells, but expect more variability as days shorten and clouds gather.

Percentage of Sunny Days in September in Marlborough

The chart illustrates the percentage of sunny days in Marlborough 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 Marlborough experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%24%27%52%32%27%36%24%25%24%30%19%
Data source: Marlborough September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Marlborough in September

As September unfolds in Marlborough, the daylight begins to wane, transitioning from the sunlit splendor of summer. With approximately 12 hours of daylight, this month marks a notable shift towards shorter days, following the peak brightness of June and July, which basked in 16 hours of sunlight. As autumn whispers in, daylight diminishes gradually, contrasting with the earlier months that experienced a vibrant surge; starting from just 8 hours in January, daylight steadily increased through spring, reaching its zenith in the summer. Now, as the leaves begin to turn and the air cools, September invites a gentle reminder of the cyclical dance of seasons, where longer evenings usher in the comforting embrace of autumn nights.

Average Daylight Hours in Marlborough for September

The chart illustrates the variation in daylight duration in Marlborough throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 24m9h 58m11h 55m13h 54m15h 38m16h 32m16h 3m14h 29m12h 34m10h 36m8h 50m7h 54m
Data source: Marlborough daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Marlborough

As September arrives in Marlborough, UK, the gentle whisper of the wind reflects the transition from summer to autumn. With an average speed of 3.5 m/s (8 mph), the breezes are notably lighter than the preceding months, yet they carry a refreshing crispness that heralds the change of seasons. This trend of diminishing wind speeds continues from the summer months, where July and August both recorded steady winds of 3.2 m/s (7 mph) and 3.8 m/s (8 mph), respectively. As autumn deepens, October's winds begin to pick up again, predicted to reach 4.5 m/s (10 mph), suggesting a return to more invigorating conditions. Marlborough's September winds, while milder, offer a serene backdrop for the beauty of fall as nature prepares for the cooler months ahead.

Average September Wind Speed in Marlborough

The chart displays monthly wind speed patterns in Marlborough, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.45.24.53.44.33.23.23.83.5 m/s4.53.94.6
Data source: Marlborough September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Marlborough Compares to Other Months

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

September and January present starkly contrasting weather conditions. In September, temperatures range from a mild 2°C (36°F) at night to a warm 29°C (84°F) during the day, with an average temperature of 14°C (58°F). This month experiences relatively lower humidity at 82% and receives about 51 mm (2.0 in) of precipitation over 9 days. In contrast, January is much colder, with temperatures dipping as low as -4°C (25°F) and only peaking at 14°C (57°F), averaging 5°C (41°F). The humidity rises to 91%, and it sees slightly more precipitation at 53 mm (2.1 in) across 10 days. For more detailed weather information, you can check out Marlborough weather in January.

September and February present quite contrasting weather conditions. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 29°C (84°F), with an average of 14°C (58°F), creating a mild and pleasant atmosphere. The month experiences 51 mm (2.0 in) of precipitation over about 9 days, accompanied by a humidity level of 82%. In contrast, February sees much colder temperatures, ranging from a minimum of -8°C (18°F) to a maximum of 18°C (64°F), averaging 6°C (43°F). Although February has slightly higher precipitation at 59 mm (2.3 in) spread out over 12 days, the humidity is notably higher at 89%. For a detailed look at February weather, visit Marlborough weather in February.

In comparing the weather of September and March, we notice significant differences in temperature and precipitation. September boasts a milder temperature range with a minimum of 2°C (36°F), an average of 14°C (58°F), and a maximum of 29°C (84°F), while March is decidedly cooler, featuring a minimum of -6°C (21°F), an average of 7°C (45°F), and a maximum of 21°C (70°F). Precipitation is also higher in March, with 67 mm (2.7 in) over 13 days compared to September's 51 mm (2.0 in) spread across 9 days. Additionally, both months experience high humidity, but March is slightly higher at 86% versus September's 82%. For more detailed insights on March's weather, you can visit this link: Marlborough weather in March.

In comparing the weather of September and April, September generally presents a warmer climate with average temperatures ranging from 2°C (36°F) to 29°C (84°F), while April experiences cooler temperatures, with a range between -4°C (26°F) and 25°C (77°F). Both months see a similar number of rainy days, with September accumulating 51 mm (2.0 in) of precipitation compared to April's 43 mm (1.7 in). Additionally, September tends to be slightly less humid, with humidity levels at 82% versus April's 85%. For more details on April weather specifically, you can visit Marlborough weather in April.

When comparing the weather in September and May, September tends to offer warmer temperatures, with averages around 14°C (58°F) and maximums reaching up to 29°C (84°F), compared to May's average of 12°C (54°F) and max of 26°C (78°F). However, May experiences slightly colder minimum temperatures, with lows around 0°C (32°F) versus September's 2°C (36°F). Precipitation is higher in May, with 72 mm (2.8 in) over 11 days, while September has 51 mm (2.0 in) across 9 days, contributing to a marginally higher humidity level of 82% in September compared to 79% in May. For further details on May weather, you can refer to Marlborough weather in May.

In comparing the weather between September and June, September offers a wider range in temperatures, with a minimum of 2°C (36°F) and a maximum of 29°C (84°F), averaging around 14°C (58°F). The month sees about 51 mm (2.0 in) of precipitation over approximately 9 days, coupled with a relatively high humidity of 82%. In contrast, June typically features slightly warmer temperatures, with a minimum of 5°C (42°F) and a maximum of 31°C (88°F), averaging 16°C (61°F). Precipitation levels are higher, totaling 75 mm (3.0 in) over 11 days, but the humidity is slightly lower at 80%. For more detailed information about June weather specifics, you can refer to Marlborough weather in June.

In comparing the weather of September and July, September tends to be cooler with average temperatures ranging from a low of 2°C (36°F) to a high of 29°C (84°F), while July features warmer temperatures, peaking at 33°C (91°F) and averaging around 18°C (64°F). Precipitation is slightly higher in July, with 63 mm (2.5 in) over 12 days, compared to 51 mm (2.0 in) and 9 days of rain in September. Additionally, September experiences higher humidity at 82%, compared to July’s 71%. For more detailed information, you can refer to Marlborough weather in July.

In comparing the weather of September to August, we see notable differences in temperature and precipitation patterns. September experiences cooler temperatures with a minimum of 2°C (36°F) and an average of 14°C (58°F), while August has a milder minimum of 7°C (45°F) and an average of 17°C (63°F). The maximum temperature in September reaches 29°C (84°F), significantly lower than August's peak of 34°C (93°F). In terms of precipitation, September receives 51 mm (2.0 in) over 9 days, which is less than August's 75 mm (3.0 in) across 13 days, indicating slightly drier conditions as summer transitions to fall. Humidity levels are also higher in September at 82%, compared to 76% in August. For more details on August weather, you can visit Marlborough weather in August.

In comparing the weather of September and October, we see a noticeable shift in temperatures and precipitation patterns. September enjoys relatively warmer temperatures, with a minimum of 2°C (36°F) and a maximum reaching up to 29°C (84°F), along with an average of 14°C (58°F). The month experiences 51 mm (2.0 in) of precipitation over about 9 days, with humidity at 82%. In contrast, October brings cooler conditions, with temperatures dipping to a minimum of 0°C (32°F) and a maximum of 23°C (73°F), averaging 11°C (52°F). Rainfall also increases significantly, totaling 100 mm (3.9 in) spread across 14 days, and humidity rises to 90%. For more information on October weather specifics, you can check Marlborough weather in October.

September offers a more moderate climate with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 29°C (84°F) and an average of 14°C (58°F), while November sees a drop in temperatures, with lows of -3°C (28°F) and highs of 16°C (61°F), averaging around 8°C (46°F). In terms of precipitation, September experiences less rain, with about 51 mm (2.0 in) over 9 days, compared to November's 59 mm (2.3 in) spread over 12 days. The humidity also increases in November to 92%, making it feel cooler and more damp than the more pleasant and drier September with a humidity of 82%. For a detailed look at what to expect, check out Marlborough weather in November.

In September, temperatures range from a mild 2°C (36°F) to a warm 29°C (84°F), with an average of 14°C (58°F). The month sees about 51 mm (2.0 in) of precipitation over 9 days, coupled with a relative humidity of 82%. In stark contrast, December experiences significantly cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 14°C (57°F), averaging just 6°C (43°F). Precipitation increases to 88 mm (3.5 in) over 15 days, and humidity rises to 92%. To learn more about December weather, visit Marlborough weather in December.

Compare Marlborough's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Marlborough

As summer transitions into autumn, September in Marlborough offers a unique blend of warmth and crispness. Days can be pleasantly warm, yet evenings cool down significantly, creating a refreshing contrast that's ideal for outdoor activities. With humidity levels remaining high, the air feels dense, often culminating in occasional rain, evident from the nine days of precipitation throughout the month. This fluctuating weather sets September apart from the more stable conditions seen during the peak summer months, making it a time when nature begins to show the first signs of autumn's vibrant hues. For a deeper understanding of the seasonal shifts, be sure to check out Marlborough Climate.