September Weather in Ventnor, United Kingdom

Last updated: March 17, 2025

In September, Ventnor, United Kingdom, experiences a delightful transition into autumn with maximum temperatures reaching 23°C (73°F) and an average of 16°C (62°F), providing a comfortable climate for outdoor activities. The nights cool down to a minimum of 10°C (50°F), creating a pleasant ambiance. While this month brings a total precipitation of 59 mm (2.3 in), spread over 11 days, the high humidity at 82% ensures a refreshing seaside atmosphere amidst occasional showers. Enjoy the blend of warm days and crisp evenings that characterize this picturesque coastal locale.

September Temperature in Ventnor

In September, Ventnor, United Kingdom, experiences a delightful transition as summer gracefully gives way to autumn. With minimum temperatures around 10°C (50°F) and maximums peaking at 23°C (73°F), the month boasts a comfortable average of 16°C (62°F). This pleasant warmth is inviting, perfect for enjoying the last vestiges of outdoor activities, whether it's strolling along the coast or savoring local cuisine outside. As the temperatures begin to cool compared to the summer peaks of August, the climate remains mild enough to encourage exploration and leisure, marking September as a surprisingly enjoyable time to visit this charming seaside town.

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

The chart illustrates September temperature patterns in Ventnor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec454647495459636462575248
Data source: Temperature data for Ventnor 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 Ventnor

September in Ventnor, United Kingdom, marks a transitional period in weather patterns, boasting an average precipitation of 59 mm (2.3 in). This month typically experiences 11 days of rain, mirroring the wetness seen in August but slightly less than the more torrential October that follows. The decline in precipitation from summer's peak indicates a gradual shift toward the wetter months ahead. This trend reflects a common seasonal pattern where late summer's moisture begins to fade, paving the way for the heavier rainfall of autumn, as seen by the significant spike to 133 mm (5.3 in) in October. Thus, September serves as a bridge, allowing residents to savor the lingering warmth of summer while preparing for the inevitable drizzles of fall.

September Precipitation Trends in Ventnor

The chart displays monthly precipitation patterns in Ventnor, 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.
JanFebMarAprMayJunJulAugSepOctNovDec707168315072476859133100128
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ventnor

In September, Ventnor, United Kingdom, experiences a noticeable shift in humidity, with levels averaging around 82%. This marks a subtle rise from the drier summer months, where July and August saw humidity dip to 71% and 76% respectively. As the transition into autumn begins, the air moisture gradually increases, setting the stage for the more humid fall months ahead, particularly as October brings an uptick to 90%. This trend illustrates a seasonal rhythm of humidity in Ventnor, illustrating the coastal climate's ebb and flow throughout the year, where late summer's respite gives way to the lush dampness of early autumn.

September Average Humidity in Ventnor

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

September in Ventnor, United Kingdom, typically sees a UV Index of 6, marking a shift back to high exposure levels after the intense summer months. As the sun begins to soften with the arrival of autumn, the burn time remains around 25 minutes, urging locals and visitors alike to take caution during midday sun. This moderate drop from the summer's peak UV levels illustrates a seasonal transition, while still emphasizing the importance of skin protection as outdoor activities remain popular. With the UV exposure gradually decreasing into the fall, it's a perfect time to enjoy the outdoors responsibly. For more insights on the UV index year-round, check out Ventnor UV Index.

Maximum UV Index Levels in Ventnor for September

The chart shows the monthly maximum UV Index (UVI) for Ventnor 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.
JanFebMarAprMayJunJulAugSepOctNovDec234678876421
Data source: Ventnor 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 Ventnor

As summer gracefully transitions into autumn, September in Ventnor, United Kingdom, delivers a delightful 330 hours of sunshine. This marks a notable decline from the sun-drenched heights of July, which boasted an impressive 433 hours, yet it still outshines the earlier months of the year. The gradual decrease in sunshine reflects the shift of seasons, but September's warmth encourages lingering outdoor activities and seaside strolls. Following the vibrant summer months, this sunny offering provides a gentle farewell to summer's embrace, making it a perfect time for visitors to enjoy the lingering sunshine before the shorter days of autumn set in.

Monthly Sunshine Duration in Ventnor: September Highlighted

The September sunshine duration represents the total number of hours Ventnor 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.
JanFebMarAprMayJunJulAugSepOctNovDec108h153h237h357h416h419h433h396h330h265h171h126h
Data source: Ventnor September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ventnor During September

In Ventnor, United Kingdom, September offers a moderate 40% chance of sunny weather, marking a shift towards milder days as summer transitions into autumn. This statistic positions September well within the month-to-month variability, showing a slight decline from the sunnier months of April (60%) and May (43%), while aligning closely with the previous summer's experiences in July (45%) and August (36%). The overall trend indicates that while the brightness of late summer may linger, the encroaching autumn brings a nuanced mix of sun and clouds, making it a charming month for those seeking a balance of warmth and mildness in the crisp air.

Percentage of Sunny Days in September in Ventnor

The chart illustrates the percentage of sunny days in Ventnor 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 Ventnor experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%27%41%60%43%30%45%36%40%31%38%22%
Data source: Ventnor September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ventnor in September

As summer fades into autumn, September in Ventnor, United Kingdom, offers a pleasant transition with approximately 12 hours of daylight. This month marks a gradual decline from the sun-drenched days of June and July, which boasted a peak of 16 hours. Following this peak, daylight begins to wane steadily, dipping to 14 hours in August, and continues the trend into October, where daylight falls further to 10 hours. This pattern highlights the rhythmic cycle of the seasons, where the warmth and brightness of summer gracefully yield to the soft, shorter days of fall. With September's mild light, it becomes an ideal time for outdoor activities before the shorter days settle in for the winter months ahead.

Average Daylight Hours in Ventnor for September

The chart illustrates the variation in daylight duration in Ventnor throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 31m10h 2m11h 55m13h 50m15h 30m16h 22m15h 54m14h 25m12h 34m10h 39m8h 57m8h 2m
Data source: Ventnor daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Ventnor

As September unfolds in Ventnor, United Kingdom, the average wind speed hovers around 5.6 m/s (13 mph), marking a gentle transition from the summer breezes of August. This slight drop in wind intensity is part of a broader trend seen throughout the warmer months, with April showcasing the lowest energy at just 5.5 m/s (12 mph). However, the wind picks up again in October, climbing to 7.3 m/s (16 mph), hinting at the approaching autumnal shift. The seasonal pattern reveals a cycle of variability, where the gusty January and December months, both averaging 7.8 m/s (17 mph), remind us of the gustier seasons to come. As September weaves its own narrative, it offers a breath of calm before the dynamic winds of fall return.

Average September Wind Speed in Ventnor

The chart displays monthly wind speed patterns in Ventnor, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.88.16.75.57.04.65.26.25.6 m/s7.36.67.8
Data source: Ventnor September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Ventnor Compares to Other Months

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

In September, the weather is generally warmer, with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 23°C (73°F). The month sees around 59 mm (2.3 in) of precipitation over approximately 11 days, accompanied by a humidity level of 82%. In contrast, January experiences much cooler temperatures, with averages between 1°C (35°F) and 13°C (56°F). Although it has slightly higher precipitation at 70 mm (2.8 in) over the same number of days, January is characterized by a higher humidity level of 91%. For a more detailed look at January weather in Ventnor, check out Ventnor weather in January.

September generally offers milder temperatures compared to February, with averages reaching around 16°C (62°F) during the day, while February sees a chillier average of 8°C (46°F). The maximum temperatures in September can reach up to 23°C (73°F), providing a more comfortable climate for outdoor activities, whereas February peaks at only 12°C (55°F). Both months experience significant precipitation, but February tends to be wetter with 71 mm (2.8 in) of rain over 13 days compared to September's 59 mm (2.3 in) over 11 days. Additionally, humidity levels are higher in February at 89%, compared to 82% in September, contributing to a more damp and cool feel during the winter month. For more specific insights about the weather in February, you can check Ventnor weather in February.

When comparing the weather between September and March, distinct differences emerge. September typically boasts milder temperatures, with averages around 16°C (62°F), while March is cooler, averaging only 8°C (47°F). The minimum temperature in September is significantly warmer at 10°C (50°F), compared to March's chilly -1°C (30°F). Precipitation levels are somewhat comparable, with September experiencing 59 mm (2.3 in) over 11 days, while March sees slightly higher rainfall at 68 mm (2.7 in) spread over 13 days. Humidity remains high in both months, with March slightly edging out at 86% compared to September's 82%. For more detailed information, you can check Ventnor weather in March.

When comparing the weather in September and April, September tends to be noticeably warmer with average temperatures ranging from 10°C (50°F) to a maximum of 23°C (73°F). In contrast, April's temperatures are cooler, with averages from 3°C (37°F) to a maximum of 16°C (61°F). September also experiences higher precipitation levels, averaging 59 mm (2.3 in) over 11 days, while April has less rainfall at 31 mm (1.2 in) over only 6 days. Additionally, humidity levels are slightly lower in September at 82% compared to April's 85%. For more detailed insights on April weather, you can visit Ventnor weather in April.

When comparing the weather in September to that of May, one can notice several differences. September typically enjoys warmer temperatures with a minimum of 10°C (50°F), an average of 16°C (62°F), and a maximum of 23°C (73°F), while May has a cooler range with a minimum of 6°C (43°F), an average of 12°C (54°F), and a maximum of 19°C (66°F). Additionally, September sees more precipitation with 59 mm (2.3 in) over 11 days, compared to May's 50 mm (2.0 in) over just 7 days. Humidity levels are also slightly higher in September, averaging 82%, whereas May maintains a humidity of 79%. For more details on May weather patterns, visit Ventnor weather in May.

When comparing the weather in September and June, we observe some notable differences. September typically sees slightly warmer temperatures, with a minimum of 10°C (50°F) and an average of 16°C (62°F), compared to June's minimum of 10°C (51°F) and average of 15°C (59°F). June's maximum temperature is a bit lower at 21°C (70°F), while September can reach up to 23°C (73°F). Precipitation is also a factor; September experiences 59 mm (2.3 in) over about 11 days, while June has 72 mm (2.8 in) over 9 days. Both months have high humidity levels, with September at 82% and June at 80%. For a more detailed look, you can check Ventnor weather in June.

In September, the weather is slightly cooler compared to July, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 23°C (73°F), while July experiences a slightly warmer range of 13°C (56°F) to 23°C (74°F). The average temperature in September is 16°C (62°F), which is just a bit lower than July's average of 17°C (63°F). September also sees more precipitation, with 59 mm (2.3 in) occurring over 11 days, compared to July's 47 mm (1.9 in) over 9 days. Additionally, humidity levels are higher in September at 82%, compared to July's 71%, contributing to a more damp feel towards the end of summer. For more details on July's weather, you can check Ventnor weather in July.

In comparing the weather of September and August, September offers slightly cooler temperatures, with daily averages around 16°C (62°F), compared to August's warmer average of 18°C (64°F). The maximum temperatures in September peak at 23°C (73°F), while August sees highs reaching 25°C (77°F). Both months experience similar levels of precipitation, with September accumulating 59 mm (2.3 in) and August slightly higher at 68 mm (2.7 in), although both months receive rain on about 11 days. Additionally, September tends to be more humid, with levels at 82%, compared to August's 76%. For those interested in more detailed information, you can check Ventnor weather in August.

September and October present a noticeable shift in weather patterns. In September, temperatures typically range from a mild 10°C (50°F) at night to a pleasant maximum of 23°C (73°F) during the day, with an average temperature of 16°C (62°F). This month sees about 59 mm (2.3 in) of precipitation over 11 days, with humidity levels around 82%. However, as October arrives, temperatures drop slightly, with minimums reaching 6°C (43°F), an average of 14°C (58°F), and a maximum of 20°C (69°F). Rainfall significantly increases to 133 mm (5.3 in) over 16 days, accompanied by a rise in humidity to 90%. For more details, you can check Ventnor weather in October.

In September, the weather is generally milder with minimum temperatures around 10°C (50°F) and average highs reaching 23°C (73°F), accompanied by a relatively lower precipitation level of 59 mm (2.3 in) spread over 11 days. Humidity levels are at 82%, creating a pleasant atmosphere as summer begins to fade. In contrast, November brings significantly cooler temperatures, with minimums dropping to 2°C (37°F) and an average high of only 16°C (62°F). This month sees increased precipitation of 100 mm (3.9 in) over 15 days, along with higher humidity at 92%, resulting in a damp and chilly environment. For more details on the climate during this time, you can check Ventnor weather in November.

September and December showcase a notable contrast in weather conditions. In September, temperatures range from a mild minimum of 10°C (50°F) to an average of 16°C (62°F), peaking at 23°C (73°F). The month experiences about 59 mm (2.3 in) of precipitation over 11 days, accompanied by fairly high humidity at 82%. In contrast, December's chill sets in with temperatures dropping significantly, reaching a minimum of 3°C (37°F) and averaging 9°C (49°F), with a maximum of 14°C (57°F). The winter month is wetter, with 128 mm (5.0 in) of rainfall spread over 17 days and humidity rising to 92%. For more details on December weather, visit Ventnor weather in December.

Compare Ventnor's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Ventnor

As September wraps up summer in Ventnor, the weather presents a delightful transition, blending warm days with the crispness of autumn. While temperatures can still reach a pleasant high of 23°C, the average cools to a comfortable 16°C, making it perfect for outdoor activities. However, the month does experience increased rainfall, with approximately 11 days of precipitation adding to the overall humidity of 82%. This distinct shift not only enhances the lush landscape but also sets the stage for the vibrant hues of fall. To learn more about the climate trends throughout the year in Ventnor, be sure to check out Ventnor Climate.