September Weather in Herne Bay, United Kingdom

Last updated: March 17, 2025

Experience the charm of Herne Bay in September, where average temperatures hover around 16°C (61°F), creating a mild atmosphere perfect for outdoor activities. With maximum highs reaching a pleasant 25°C (77°F) and nighttime lows dipping to 6°C (44°F), visitors can enjoy a diverse range of weather conditions. Be prepared for occasional showers, as the month sees about 46 mm (1.8 in) of precipitation spread over 9 days. The humidity levels are notably high at 80%, contributing to a refreshing coastal breeze that makes Herne Bay an inviting destination this early autumn.

September Temperature in Herne Bay

As September arrives in Herne Bay, temperatures begin to reflect the transition from the warmth of summer to the crispness of autumn. The average temperature settles at a comfortable 16°C (61°F), skirting the line between balmy and cool. With nighttime lows around 6°C (44°F), the air feels fresh, and the days still boast pleasant highs of 25°C (77°F), making it a perfect time for coastal walks or enjoying the last of the summer sun. This month marks a noticeable decline from the sweltering peaks of summer, yet it retains a warmth that invites outdoor activities. As the days gradually shorten, September represents a charming blend of lingering warmth and the early whispers of autumn, setting the stage for the cooler months ahead.

September Weather in Herne Bay: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Herne Bay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424446495561646461554945
Data source: Temperature data for Herne Bay 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 Herne Bay

In September, Herne Bay experiences a moderate precipitation level of 46 mm (1.8 in), making it one of the drier months as the summer season transitions to autumn. Rainfall occurs on about 9 days throughout the month, a slight decrease from the wetter months of August and October, which often see heavier downpours and more precipitation days. This shift hints at the gradual onset of fall, as the lush greens of summer begin to fade and the landscape prepares for the winter months ahead. Overall, September offers a balance of pleasant weather and occasional rain, characteristic of the UK’s transitional climate.

September Precipitation Trends in Herne Bay

The chart displays monthly precipitation patterns in Herne Bay, 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.
JanFebMarAprMayJunJulAugSepOctNovDec576051276055517246896096
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Herne Bay

In September, humidity in Herne Bay, United Kingdom, averages around 80%, marking a slight increase from the drier summer months of July and August, which saw lows of 76% and 73%, respectively. This uptick signals the transition into autumn, as humidity levels begin to rise again, reminiscent of earlier months in the year. Throughout the year, humidity tends to peak during the winter, with November and December hovering at a high 92%, contrasting sharply with the more pleasant summer months. This trend reveals how Herne Bay experiences a cycle of humidity that not only reflects seasonal shifts but also provides a glimpse into the region's maritime climate, characterized by its wet winters and humid but milder summers.

September Average Humidity in Herne Bay

This chart illustrates the average monthly humidity levels in Herne Bay, 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%82%81%76%73%80%89%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Herne Bay

In September, Herne Bay experiences a UV Index of 5, landing in the moderate exposure category, which means you can enjoy the late summer sunshine for about 30 minutes before needing to take precautions. This is a slight dip from the peak summer months, where the UV Index surged to 8, indicating that while the sun's intensity begins to wane, it’s still strong enough to warrant attention. As autumn approaches, the UV levels gradually decrease, providing a comfortable balance for outdoor activities without the fierce burn risks seen in July and August. To stay informed on how to protect your skin year-round, check out Herne Bay UV Index.

Maximum UV Index Levels in Herne Bay for September

The chart shows the monthly maximum UV Index (UVI) for Herne Bay 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Herne Bay 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 Herne Bay

As summer gracefully transitions into autumn, September in Herne Bay continues to bask in a generous 326 hours of sunshine. This month reflects a natural decline from the peak of 422 hours in July, yet it still holds onto a healthy amount of sunlight, providing a warm farewell to summer. The gradual tapering of daylight aligns with the overall trend of decreasing sunshine hours as the year progresses, moving from the vibrant 414 hours in May down to the more subdued 248 hours by October. September's charm lies in its lingering warmth and brightness, a soft reminder of the joyful summer months while gently ushering in the cooler days ahead.

Monthly Sunshine Duration in Herne Bay: September Highlighted

The September sunshine duration represents the total number of hours Herne Bay 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.
JanFebMarAprMayJunJulAugSepOctNovDec95h157h234h351h414h416h422h398h326h248h163h117h
Data source: Herne Bay September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Herne Bay During September

As September rolls into Herne Bay, the likelihood of enjoying sunny weather stands at 36%, maintaining the warm, albeit variable, trend seen throughout the summer months. Following the peak of 49% sunshine in April, the chance of sunny days gradually declines, reaching a low in winter. This month mirrors the summer's final act, showing that while September is not quite the sunniest time of year, it still holds onto a notable amount of brightness compared to the dreary months that follow. With sunny days at a considerable rate, it’s a perfect time to revel in the lingering warmth before autumn’s chill sets in.

Percentage of Sunny Days in September in Herne Bay

The chart illustrates the percentage of sunny days in Herne Bay 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 Herne Bay experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec18%27%35%49%37%31%41%36%36%29%29%19%
Data source: Herne Bay September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Herne Bay in September

As summer fades in Herne Bay, September marks a gentle transition, with 12 hours of daylight illuminating the days. This decrease from 14 hours in August signals the gradual shift towards autumn, following the peak brightness of the summer months. The trend reveals a steady decline in daylight as the year progresses, starting from a robust 16 hours in June and July, to a modest 10 hours by October. September serves as a beautiful reminder of the lingering warmth of late summer, even as the days begin to shorten, preparing the community for the cozy charm of autumn ahead.

Average Daylight Hours in Herne Bay for September

The chart illustrates the variation in daylight duration in Herne Bay throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 26m9h 59m11h 55m13h 53m15h 35m16h 29m16h14h 28m12h 34m10h 37m8h 52m7h 56m
Data source: Herne Bay daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Herne Bay

In September, Herne Bay experiences a notable drop in wind speed, averaging 4.4 m/s (10 mph), making it one of the calmer months in the coastal town. This slight decrease follows a trend established during the summer months, where winds begin to taper off from the higher speeds in the spring and early summer. After an average of 5.1 m/s (11 mph) in August, September's breezy conditions offer a gentle transition towards autumn. While it may be less blustery than earlier in the year, the winds remain a consistent feature, setting the stage for the cooler, more spirited gusts that emerge in October. Overall, September’s winds in Herne Bay serve as a pleasant reminder of the late summer's quiet charm before the season shifts.

Average September Wind Speed in Herne Bay

The chart displays monthly wind speed patterns in Herne Bay, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.56.15.44.95.23.84.55.14.4 m/s5.94.95.6
Data source: Herne Bay September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Herne Bay Compares to Other Months

The weather in Herne Bay 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 Herne Bay and find detailed weather information for every month.

In comparing the weather of September and January, a notable shift in temperature and conditions emerges. September typically boasts milder temperatures, with an average of 16°C (61°F) and highs reaching up to 25°C (77°F), while January's cold can bring minimums as low as -3°C (27°F) and an average of just 6°C (43°F). Additionally, January experiences more precipitation, at 57 mm (2.3 in) over 11 days compared to September's 46 mm (1.8 in) over 9 days. The humidity also rises in January to 91%, slightly higher than September's 80%. For a more detailed glimpse into January weather, you can check out Herne Bay weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a mild minimum of 6°C (44°F) to a comfortable maximum of 25°C (77°F), with an average of 16°C (61°F). The month experiences moderate precipitation of 46 mm (1.8 in) over roughly 9 days, accompanied by a humidity level of 80%. In stark contrast, February brings much colder conditions, with temperatures dipping as low as -4°C (26°F) and peaking at 15°C (59°F), averaging just 7°C (44°F). This month also sees increased rainfall, totaling 59 mm (2.3 in) across approximately 13 days and higher humidity levels at 89%. For a closer look at what to expect, check out Herne Bay weather in February.

In comparing weather between September and March, notable differences emerge. September typically offers a milder temperature range, with averages around 16°C (61°F) and highs reaching up to 25°C (77°F), while March tends to be cooler, with average temperatures around 8°C (46°F) and highs peaking at 19°C (66°F). Precipitation is slightly higher in March, with 51 mm (2.0 in) spread over 12 days, compared to 46 mm (1.8 in) over 9 days in September, contributing to a somewhat damp atmosphere. The humidity levels are also slightly elevated in March at 86%, versus 80% in September. For a detailed look at March weather specifically, you can visit Herne Bay weather in March.

When comparing September and April weather, September tends to be warmer and more variable. September boasts an average temperature of 16°C (61°F), with daytime highs reaching 25°C (77°F), while April typically experiences cooler averages around 10°C (49°F) with a maximum of 21°C (70°F). Additionally, September receives slightly more rainfall, averaging 46 mm (1.8 in) over 9 days, compared to April's 27 mm (1.1 in) over just 6 days. Both months exhibit high humidity, but September's humidity is a bit lower at 80% compared to April's 85%. For more detailed insights on April weather specifically, you can visit Herne Bay weather in April.

When comparing the weather in September and May, we see notable differences in temperature and precipitation patterns. September typically has a milder temperature range, with a minimum of 6°C (44°F) and a maximum of 25°C (77°F), leading to an average of 16°C (61°F). In contrast, May starts cooler, with temperatures dipping as low as 3°C (38°F) and maxing out at 23°C (73°F), resulting in an average of 13°C (55°F). While September experiences less precipitation overall at 46 mm (1.8 in) over 9 days, May sees slightly more rain, totaling 60 mm (2.4 in) over 11 days. Humidity levels are similar, with September at 80% and May slightly higher at 82%. For a closer look at May conditions specifically, check out Herne Bay weather in May.

In comparing the weather of September and June, we see some notable differences despite their similar average temperatures. September experiences a lower minimum temperature of 6°C (44°F), while June starts at a slightly warmer 9°C (48°F). The maximum temperature in June reaches 28°C (83°F), compared to 25°C (77°F) in September, offering warmer days as summer transitions into fall. Rainfall is slightly more prevalent in June, with 55 mm (2.2 in) compared to September's 46 mm (1.8 in), although both months experience rain on about 9 days. Humidity remains relatively consistent, at 80% in September and 81% in June. For a detailed look at June weather, visit Herne Bay weather in June.

In comparing the weather of September and July, we see notable differences in temperature and precipitation patterns. September experiences cooler temperatures, with a minimum of 6°C and a maximum of 25°C, resulting in an average of 16°C. In contrast, July boasts warmer minimum and maximum temperatures, ranging from 11°C to 33°C, with an average of 18°C. While September sees about 46 mm of precipitation over 9 days, July has slightly higher rainfall at 51 mm across 11 days. The humidity remains relatively similar, with September at 80% compared to July's 76%. For a detailed look at July weather, check out Herne Bay weather in July.

In comparing the weather of August and September, September tends to be cooler and more temperate. The average temperature in September is 16°C (61°F), with maximums reaching 25°C (77°F), while August enjoys warmer days with an average of 18°C (65°F) and highs up to 31°C (89°F). Precipitation is also higher in August, measuring 72 mm (2.8 in) over 11 days compared to September's 46 mm (1.8 in) over 9 days, despite September having a higher humidity level at 80%. For a more detailed look at August’s conditions, you can check Herne Bay weather in August.

In comparison to September, October experiences a slight drop in average temperature, with minimums averaging 5°C (41°F) and maximums at 22°C (72°F), compared to September's 6°C (44°F) and 25°C (77°F). The overall average temperature also decreases to 13°C (56°F) as opposed to September's 16°C (61°F). Precipitation increases significantly in October, totaling 88 mm (3.5 in) across 13 days compared to September's 46 mm (1.8 in) over 9 days, contributing to a higher humidity level of 89% this month versus 80% in September. For more detailed information on conditions, check out Herne Bay weather in October.

In comparing the weather of September and November, September offers warmer temperatures with an average of 16°C (61°F), reaching highs of 25°C (77°F), while November sees a significant dip, with an average of only 9°C (49°F) and a maximum of 17°C (63°F). Precipitation also increases in November, with 60 mm (2.3 in) spread over 12 days compared to September's 46 mm (1.8 in) over 9 days. Additionally, the humidity in November rises to a notable 92%, compared to September's 80%, contributing to a cooler and more damp atmosphere. For more details on the specific conditions, you can check Herne Bay weather in November.

In September, the weather offers more warmth, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 25°C (77°F) and an average of 16°C (61°F). With 46 mm (1.8 in) of precipitation over approximately 9 days, the humidity hovers around a comfortable 80%. In contrast, December brings a marked drop in temperatures, with minimums dipping to 0°C (33°F) and maximums reaching only 14°C (58°F), averaging 7°C (45°F). The month sees increased rainfall, totaling 96 mm (3.8 in) over about 14 days, and the humidity rises to 92%, making the days feel much chillier. For more details, visit Herne Bay weather in December.

Compare Herne Bay's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Herne Bay

As September unfolds in Herne Bay, the weather begins to transition from the warmth of summer to the cool embrace of autumn. Average temperatures hover around a comfortable 16°C (61°F), peaking at maximums of 25°C (77°F) on warmer days, while the crisp air sets in with minimums dipping to 6°C (44°F). Although rainfall sees an uptick with approximately 46 mm (1.8 in) over 9 days, the month remains relatively pleasant with a humidity level of 80% adding to the fresh coastal atmosphere. This blend of warmth and increasing precipitation showcases a unique character for September, contrasting distinctly with the dryer summer months. For a deeper dive into Herne Bay's evolving climate, visit Herne Bay Climate.