September Weather in Bosham, United Kingdom

Last updated: March 17, 2025

September in Bosham, United Kingdom offers a delightful transition into autumn, with temperatures averaging around 16°C (62°F). Maximum highs can reach a pleasant 23°C (74°F), while nights can dip to a refreshing 9°C (49°F). Rainfall is not uncommon, as the month sees about 61 mm (2.4 in) of precipitation spread over 10 days, contributing to the region's lush landscapes. With an humidity level of 82%, the coastal charm of Bosham is enhanced, making it a picturesque time to explore the beauty of this quaint village.

September Temperature in Bosham

In September, Bosham experiences a delightful transition as summer gives way to autumn. With minimum temperatures averaging around 9°C (49°F) and highs reaching up to 23°C (74°F), this month provides a comfortable climate that's perfect for outdoor activities. The average temperature of 16°C (62°F) reflects a warming trend as the days remain pleasantly mild before the cooler months arrive. This moderate weather invites locals and visitors alike to enjoy the scenic beauty of the coast while savoring the last remnants of summer warmth. As September unfolds, the crispness of autumn begins to hint at the seasonal shift, making it an enchanting time to explore this charming seaside village.

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

The chart illustrates September temperature patterns in Bosham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec444546495460646461575147
Data source: Temperature data for Bosham 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 Bosham

In September, Bosham experiences a moderate precipitation pattern with an average of 61 mm (2.4 in) of rainfall over 10 days. This reflects a slight decrease compared to the preceding month's relatively wet conditions, where August saw 83 mm (3.3 in) of rain across the same number of days. While September marks a transition into the wetter autumn months, it maintains a lighter touch, signaling the approach of October's notable increase to 126 mm (5.0 in) over 16 days. The data highlights an overall trend of escalating rainfall as the year progresses, with September serving as a bridge between late summer's showers and the early bursts of autumn downpours.

September Precipitation Trends in Bosham

The chart displays monthly precipitation patterns in Bosham, 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.
JanFebMarAprMayJunJulAugSepOctNovDec75827331517159836112698131
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bosham

As summer transitions into autumn, September in Bosham, United Kingdom, brings a notable increase in humidity, reaching around 82%. This rise follows a drier July and August, which recorded their lowest humidity levels at 71% and 76%, respectively. The gradual ascent of September's figures suggests a shift in the seasonal climate, heralding the approach of autumn's characteristic dampness. Such fluctuations are consistent with a general trend observed throughout the year: the highest humidity levels occur during the winter months, peaking at 92% in November and December. As the year progresses, it's clear that Bosham's weather is a delicate balance of moisture, with September acting as a bridge between the warm, drier summer and the chilly, humid winter ahead.

September Average Humidity in Bosham

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

In September, Bosham, United Kingdom, experiences a notable shift in sun exposure, with a UV Index of 6, classified as high. This means that outdoor enthusiasts should be cautious, as it signals a burn time of just 25 minutes for unprotected skin. This trend follows a summer of very high UV levels, peaking at 8 in July and June, before gradually declining as autumn approaches. Interestingly, September’s UV Index remains robust, encouraging residents and visitors to remain sun-smart while enjoying the lingering warmth of early fall. For detailed insights into UV levels throughout the year, visit Bosham UV Index.

Maximum UV Index Levels in Bosham for September

The chart shows the monthly maximum UV Index (UVI) for Bosham 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.
JanFebMarAprMayJunJulAugSepOctNovDec224678876421
Data source: Bosham 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 Bosham

September in Bosham brings a delightful transition as summer's warmth begins to wane, boasting a generous 322 hours of sunshine. This month consistently showcases a decline in daylight compared to the peak of August, which offered 387 hours, yet it remains strikingly brighter than the grimmer winter months ahead. The overall trend reveals a gradual increase in sunny hours from the brisk beginnings of the year, with March emerging as a notable turning point leading into the vibrant spring and summer months. As autumn approaches, September embodies a bittersweet farewell, allowing residents and visitors to revel in the lingering warmth before the days grow shorter. With this backdrop, the quaint shores of Bosham become a scenic canvas, perfect for savoring the last rays of summer sun.

Monthly Sunshine Duration in Bosham: September Highlighted

The September sunshine duration represents the total number of hours Bosham 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.
JanFebMarAprMayJunJulAugSepOctNovDec105h151h226h346h415h410h424h387h322h254h161h120h
Data source: Bosham September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bosham During September

In Bosham, September brings a moderate 37% chance of sunny weather, marking a transition from the summer's warmer days. While this statistic reflects a dip from the peak sunlight seen in April (58%), it remains more promising than the dreariness of January and December, which each sit at just 21%. The weather during this month often presents a delightful mix of lingering warmth and the approach of autumn, making it an intriguing time for outdoor activities. Though the sun may not shine as brightly as in peak summer months like July (43%), September still offers a fair chance to enjoy the outdoors before the cooler months set in.

Percentage of Sunny Days in September in Bosham

The chart illustrates the percentage of sunny days in Bosham 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 Bosham experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%26%40%58%42%31%43%35%37%31%38%21%
Data source: Bosham September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bosham in September

As summer wanes, September in Bosham, United Kingdom, sees a gentle transition with approximately 12 hours of daylight, a noticeable decline from the sun-drenched 16 hours experienced in June. This decrease is part of a rhythmic annual cycle where daylight gradually diminishes from the vibrant heights of mid-summer to the austere winters, with daylight durations dropping to just 8 hours in December. The month straddles the enduring glow of late summer and the encroaching chill of autumn, making it a bittersweet time marked by shorter days yet still ushering in the cozy charm of the changing season.

Average Daylight Hours in Bosham for September

The chart illustrates the variation in daylight duration in Bosham throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 29m10h 1m11h 55m13h 51m15h 32m16h 25m15h 57m14h 26m12h 34m10h 38m8h 55m8h
Data source: Bosham daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Bosham

As September sweeps into Bosham, the coastal village experiences a gentle decline in wind speed, averaging 5.2 m/s (12 mph), which mirrors the mild breezes of late summer. This calmness follows a slight uptick in August, while the autumn months show a resurgence, with October skies promising stronger gusts of 6.8 m/s (15 mph). The overall trend reflects a transition from the blustery winter and spring months, with January and February boasting higher averages of 7.1 m/s and 7.5 m/s, respectively. As the seasons shift, the winds bring a refreshing change, hinting at the crisp, cooler days that lie ahead.

Average September Wind Speed in Bosham

The chart displays monthly wind speed patterns in Bosham, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.17.56.25.26.54.35.05.85.2 m/s6.85.97.0
Data source: Bosham September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Bosham Compares to Other Months

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

In September, temperatures are generally milder, with a minimum of 9°C (49°F) and an average of 16°C (62°F), peaking at 23°C (74°F). The month experiences 61 mm (2.4 in) of precipitation over about 10 days, and humidity levels sit at a comfortable 82%. In contrast, January sees much cooler temperatures, with a minimum dropping to 1°C (33°F) and an average of only 7°C (44°F), reaching a maximum of 13°C (55°F). The precipitation increases slightly to 75 mm (2.9 in) over approximately 12 days, accompanied by higher humidity at 91%. For a detailed look at January weather, check out Bosham weather in January.

September generally offers milder temperatures compared to February, with averages around 16°C (62°F), while February sees a much cooler average of 7°C (45°F). In September, temperatures can reach a pleasant maximum of 23°C (74°F), making it a great time for outdoor activities. Conversely, February's maximum hovers around 12°C (54°F), indicating a significant chill. Precipitation is more frequent in February, with 82 mm (3.2 in) over 13 days, compared to September's 61 mm (2.4 in) over just 10 days. Additionally, humidity levels are slightly higher in February at 89% compared to September's 82%. For more detailed weather insights, you can check Bosham weather in February.

In September, temperatures range from a mild 9°C (49°F) at night to a pleasant max of 23°C (74°F) during the day, with an average of 16°C (62°F). The month experiences a moderate level of precipitation at 61 mm (2.4 in) over about 10 days, accompanied by relatively high humidity at 82%. In contrast, March is notably cooler, with nighttime lows dropping to -2°C (29°F) and daytime highs peaking at 13°C (56°F), averaging around 8°C (46°F). Precipitation in March is slightly higher at 73 mm (2.9 in) spread over 14 days, and humidity further increases to 86%. For more detailed information, you can check this link: Bosham weather in March.

When comparing the weather of September and April, it's evident that September enjoys milder temperatures, with averages around 16°C (62°F) and maximums reaching 23°C (74°F). In contrast, April has cooler average temperatures at 9°C (49°F), peaking at only 17°C (62°F). Additionally, September experiences more rainfall, with 61 mm (2.4 in) spread over about 10 days, whereas April sees less precipitation at 31 mm (1.2 in) over just 6 days. Humidity is slightly higher in April at 85%, compared to September's 82%. For a more detailed look at April's climate, you can check Bosham weather in April.

In comparing the weather of September and May, September tends to be warmer, with average temperatures reaching 16°C (62°F) compared to May's 12°C (54°F). September also boasts higher maximum temperatures, peaking at 23°C (74°F), while May sees a maximum of 20°C (68°F). Both months experience similar levels of precipitation, with September receiving 61 mm (2.4 in) and May getting slightly less at 51 mm (2.0 in), and both months seeing rain on about 10 days. Humidity is a bit higher in September at 82%, compared to May's 79%. For a more detailed look at weather conditions during this time, you can check Bosham weather in May.

In comparing the weather between September and June, we find similar temperature ranges but slight variations in conditions. September features a minimum temperature of 9°C (49°F) and an average of 16°C (62°F), whereas June starts with a minimum of 10°C (50°F) and an average of 15°C (60°F). The maximum temperatures are quite close as well, with September reaching up to 23°C (74°F) and June maxing out at 22°C (72°F). Precipitation in June is somewhat higher, with 70 mm (2.8 in) over 9 days, compared to September's 61 mm (2.4 in) over 10 days, while humidity levels are fairly consistent at 82% in September and 80% in June. For more detailed information about June weather, you can explore Bosham weather in June.

In comparing the weather of September and July, we see notable differences, particularly in temperature and humidity. September has a wider range of temperatures, with a minimum of 9°C (49°F) and an average of 16°C (62°F), while July maintains a milder minimum of 13°C (55°F) and a slightly higher average of 18°C (64°F). Both months record a maximum temperature of 23°C (74°F). In terms of precipitation, September experiences 61 mm (2.4 in) over 10 days, slightly more than July's 59 mm (2.3 in) spread across 11 days, which suggests a similarly rainy pattern. Additionally, September is notably more humid at 82%, compared to July's 71%. For more insights about July's weather specifics, you can visit Bosham weather in July.

In comparing September and August weather, September tends to be cooler, with average temperatures ranging from a minimum of 9°C (49°F) to a maximum of 23°C (74°F). In contrast, August enjoys slightly warmer temperatures, with a minimum of 12°C (53°F) and a maximum of 25°C (77°F). Additionally, September experiences more rainfall, totaling 61 mm (2.4 in) over 10 days, compared to August's 83 mm (3.3 in) over 12 days. Humidity levels are higher in September at 82%, while August maintains a more moderate 76%. For more detailed information, you can visit Bosham weather in August.

September and October showcase a notable shift in weather patterns. In September, temperatures range from a minimum of 9°C (49°F) to a maximum of 23°C (74°F), with an average of 16°C (62°F) and a relatively mild humidity of 82%. The month sees about 61 mm (2.4 in) of precipitation over approximately 10 days.

In contrast, October experiences cooler temperatures, with a minimum of 5°C (42°F), an average of 14°C (57°F), and a maximum of 20°C (68°F). This month is also noticeably wetter, with precipitation reaching 126 mm (5.0 in) spread across 16 days and humidity rising to 90%. For more specific insights into October weather, you can check Bosham weather in October.

In comparing the weather of September and November, there is a noticeable shift in temperatures and precipitation patterns. September typically enjoys milder conditions with minimum temperatures around 9°C (49°F) and an average of 16°C (62°F), peaking at 23°C (74°F). In contrast, November brings cooler weather, with minimum temperatures dropping to 2°C (35°F) and an average of only 10°C (51°F). Additionally, November experiences significantly more rainfall, totaling 98 mm (3.9 in) over 16 days, compared to September’s 61 mm (2.4 in) over just 10 days. Humidity also rises in November, reaching 92% compared to September’s 82%. For more detailed information, you can visit Bosham weather in November.

September and December present distinctly different weather patterns. In September, temperatures range from a minimum of 9°C (49°F) to a maximum of 23°C (74°F), with an average of 16°C (62°F). The month also experiences about 61 mm (2.4 in) of precipitation over approximately 10 days, accompanied by a humidity level of 82%. In contrast, December brings cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 13°C (56°F), averaging just 8°C (47°F). This month is wetter, receiving 131 mm (5.2 in) of rain over 17 days and having a higher humidity of 92%. For those seeking more details on the December climate, visit Bosham weather in December.

Compare Bosham's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Bosham

As September settles in, Bosham experiences a shift in weather that marks the transition into autumn. The temperatures begin to cool, offering a pleasant break from the summer heat, with averages around 16°C (62°F). While occasional warm days may peak at 23°C (74°F), the looming presence of rain—averaging 61 mm (2.4 in) over approximately 10 days—reminds us that fall is on its way. Coupled with relatively high humidity levels of 82%, the air can feel quite damp and refreshing. This blend of warmth and moisture makes September distinct, inviting both locals and visitors to enjoy the picturesque scenery before winter’s chill sets in. For more insights into the weather conditions throughout the year, explore Bosham Climate.