September Weather in Worthing, United Kingdom

Last updated: March 17, 2025

In September, Worthing, United Kingdom, experiences a delightful moderate climate marked by a maximum temperature of 23°C (73°F) and a comfortable average of 16°C (62°F). With temperatures dipping to a minimum of 10°C (50°F), the month offers a pleasant transition into autumn. Rainfall averages 61 mm (2.4 in) over 10 days, contributing to the region's lush greenery. Residents and visitors alike will notice a high humidity level of 82%, adding a mild freshness to the air. Overall, Worthing's September weather enchants with a blend of warmth, occasional rain, and vibrant coastal charm.

September Temperature in Worthing

As September graces Worthing, the transition into autumn brings a delightful shift in temperatures. With minimums around 10°C (50°F) and maximums peaking at 23°C (73°F), the average temperature settles comfortably at 16°C (62°F). This marks the tail end of summer's warmth, providing pleasant days that are ideal for outdoor strolls along the shoreline. Compared to the bustling heat of August, where maximums can soar to 24°C (75°F), September's mild climate offers a refreshing respite. The days are still inviting, yet the evenings hint at the cooler weather to come, making it a month of transformation in this charming coastal town.

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

The chart illustrates September temperature patterns in Worthing, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec454546495459646461575148
Data source: Temperature data for Worthing 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 Worthing

In September, Worthing experiences a moderate precipitation level of 61 mm (2.4 in), making it one of the wetter months of the year. This amount falls between the summer months and the significantly rainier autumn, suggesting a transition as the year progresses. Interestingly, September sees around 10 days of rain, aligning closely with the preceding months of August, which recorded similar rainfall yet had slightly more rain days. This pattern hints at a late-summer rainfall distribution, providing essential moisture as the landscapes prepare for the heavier rains that October typically brings. Overall, September stands as a pivotal month; it bridges the warm, drier spells of summer with the approaching chill and wetness of fall.

September Precipitation Trends in Worthing

The chart displays monthly precipitation patterns in Worthing, 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.
JanFebMarAprMayJunJulAugSepOctNovDec717667294767547761126102131
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Worthing

As September rolls into Worthing, the humidity levels take a slight uptick, settling at 82%. This marks a transition from the summer months, where July and August experience lower humidity levels of 71% and 76%, respectively. The shift suggests a gradual return to the higher humidity seen earlier in the year, notably in January through April, when levels hover above 85%. As autumn approaches, Worthing witnesses a pattern where humidity peaks again in October at 90%, hinting at the moist atmosphere typical for the later months of the year. This fluctuation underscores the town's maritime climate, balancing between the warm, drier spells of summer and the increasingly damp conditions of fall and winter.

September Average Humidity in Worthing

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

As September rolls in Worthing, the UV Index begins to decline slightly, settling at 6, which indicates a high exposure category. While this marks a decrease from the peak summer months of July and August, where the UV Index reached 8 and 7, it still necessitates caution. With a burn time of approximately 25 minutes, it’s essential to protect your skin during outdoor activities. This trend highlights the transitional nature of early autumn, as sunlight becomes less intense yet remains significant enough for potential sun damage. For those planning to enjoy the outdoors, understanding the UV Index is crucial; explore more details at Worthing UV Index.

Maximum UV Index Levels in Worthing for September

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

As summer gracefully transitions into autumn, September in Worthing continues to bask in the warm embrace of sunshine, boasting a commendable 324 hours of sunlight. Though this marks a decline from the sun-drenched months of July and August, it remains a noteworthy highlight in the year’s light spectrum. This decrease reflects a gradual shift as daylight hours shorten, but September's sun still outshines earlier months like January and February, which struggle with only 103 and 153 hours, respectively. As the sun begins its retreat, Worthing residents can savor the last remnants of summer warmth, setting the stage for a cozy autumn ahead.

Monthly Sunshine Duration in Worthing: September Highlighted

The September sunshine duration represents the total number of hours Worthing 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.
JanFebMarAprMayJunJulAugSepOctNovDec103h153h228h347h416h411h424h388h324h255h159h120h
Data source: Worthing September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Worthing During September

In Worthing, United Kingdom, September offers a moderate chance of sunny weather, characterized by a 37% likelihood of sunshine. This positions it similarly to both August and July, where the probability of clear skies remains around the same mark. As we transition from the peak summer months of June and July—when the chance of sun hovers at 31% and 43% respectively—September retains this sunny potential while also introducing the ambiance of early autumn. Overall, the trend shows that while the sunshine may not be as reliable as during the sunniest months of April and March, there is still a firm opportunity for delightful days, making it an appealing time to enjoy the coast.

Percentage of Sunny Days in September in Worthing

The chart illustrates the percentage of sunny days in Worthing 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 Worthing experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%25%41%59%43%31%43%37%37%31%38%21%
Data source: Worthing September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Worthing in September

In September, Worthing, United Kingdom, enjoys a pleasant 12 hours of daylight, marking a gentle transition from the long, sunlit days of summer to the shorter ones of autumn. Following the peak of 16 hours in June, the daylight duration gradually decreases, reflecting the shifting seasons and creating a perfect backdrop for outdoor activities. As the month unfolds, the days remain longer than those in the chillier months that follow, such as October, which dips to 10 hours, and November and December, both at 8 hours. This gradual decline serves as a reminder of nature's rhythm, offering the chance to relish the lingering warmth and light before embracing the coziness of the approaching winter.

Average Daylight Hours in Worthing for September

The chart illustrates the variation in daylight duration in Worthing 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 24m15h 56m14h 26m12h 34m10h 38m8h 55m8h
Data source: Worthing daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Worthing

As September rolls into Worthing, the winds begin to moderate, with an average speed of 5.5 m/s (12 mph), slightly lower than the summer months but still offering a refreshing breeze. This drop follows a peak in wind activity during the earlier months, peaking at 8.0 m/s (18 mph) in February, and then gradually declining until it reaches its annual low of 4.5 m/s (10 mph) in June. The transition into autumn is marked by a subtle increase in wind speed again in October, reinforcing the cyclical nature of Worthing's winds. This gentle September breeze is perfect for long beach walks and enjoying the coastal charm, hinting at the upcoming seasonal changes while maintaining a pleasant atmosphere.

Average September Wind Speed in Worthing

The chart displays monthly wind speed patterns in Worthing, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.78.06.65.66.94.55.36.25.5 m/s7.46.57.6
Data source: Worthing September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Worthing Compares to Other Months

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

In September, the weather is generally milder with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 23°C (73°F), and an average of 16°C (62°F). This month experiences less precipitation, totaling 61 mm (2.4 in) over about 10 days, alongside a comfortable humidity level of 82%. In contrast, January brings cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 13°C (55°F), averaging at 7°C (45°F). Rainfall increases slightly to 71 mm (2.8 in) over approximately 12 days, and humidity rises to 91%. For more detailed insights on January weather in Worthing, visit Worthing weather in January.

September and February exhibit markedly different weather patterns. In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 23°C (73°F), with an average temperature of 16°C (62°F). The month sees around 61 mm (2.4 in) of precipitation over approximately 10 days, accompanied by a relative humidity of 82%. In contrast, February is significantly colder, with temperatures dropping to a minimum of -1°C (30°F) and peaking at 12°C (54°F), averaging around 7°C (45°F). This month experiences slightly higher precipitation at 76 mm (3.0 in) over 13 days and an increase in humidity to 89%. For more details on February weather, you can check Worthing weather in February.

In comparing the weather of September and March, a noticeable contrast emerges. September, with a mild average temperature of 16°C (62°F) ranging from a minimum of 10°C (50°F) to a maximum of 23°C (73°F), offers a comfortable climate for outdoor activities alongside 61 mm (2.4 in) of precipitation over about 10 days. In contrast, March experiences cooler temperatures, with an average of 8°C (47°F), dipping as low as -1°C (30°F) and peaking at 13°C (55°F). The month also sees slightly higher precipitation at 67 mm (2.6 in) over 14 days and increased humidity at 86%. For a closer look at March weather specifics, you can check Worthing weather in March.

When comparing the weather in September and April, September generally offers milder temperatures with a minimum of 10°C (50°F) and an average of 16°C (62°F), peaking at a comfortable 23°C (73°F). In contrast, April experiences cooler conditions, with temperatures starting as low as 2°C (36°F) and averaging only 9°C (49°F), reaching a maximum of 15°C (60°F). While September has more substantial rainfall—averaging 61 mm (2.4 in) over about 10 days—April sees less precipitation at 29 mm (1.2 in) over just 6 days. Interestingly, both months maintain high humidity levels, with September at 82% and April slightly higher at 85%. For more details on April weather, you can check Worthing weather in April.

September and May offer distinctly different weather experiences. In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 23°C (73°F), with an average temperature of 16°C (62°F). This month also sees an average of 61 mm (2.4 in) of precipitation over approximately 10 days and a relatively high humidity of 82%. In contrast, May's climate is typically cooler, with temperatures varying from a minimum of 6°C (42°F) to a maximum of 19°C (67°F) and an average of 12°C (54°F). May receives less precipitation, totaling 47 mm (1.9 in) across 9 days, accompanied by slightly lower humidity at 79%. For a more detailed look at May's conditions, you can check Worthing weather in May.

In comparing the weather of September and June, September generally offers slightly warmer temperatures, with an average of 16°C (62°F) compared to June's average of 15°C (60°F). While both months experience similar minimum temperatures around 10°C (50°F), September boasts a higher maximum temperature of 23°C (73°F) versus June's 21°C (70°F). Precipitation levels are relatively close, with September receiving 61 mm (2.4 in) over 10 days and June having 66 mm (2.6 in) across 9 days, indicating a reasonable distribution of rain in both months. Humidity is slightly higher in September at 82%, compared to June's 80%. For more detailed weather insights for June, you can check Worthing weather in June.

In comparing the weather of September and July, September tends to be slightly cooler, with a minimum temperature of 10°C (50°F) and an average of 16°C (62°F), whereas July experiences a minimum of 13°C (56°F) and an average of 18°C (64°F). Both months have a maximum temperature that is quite similar, peaking at around 23°C (73°F) in September and 23°C (74°F) in July. Precipitation is relatively comparable as well, with September receiving 61 mm (2.4 in) over 10 days and July having 54 mm (2.1 in) over the same number of days. However, September's humidity levels are higher at 82%, compared to July's 71%. For more detailed insights about July weather specifically, you can check out Worthing weather in July.

In comparing the weather between August and September, September tends to be slightly cooler, with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 23°C (73°F), compared to August's temperatures of 12°C (54°F) to 24°C (75°F). September also experiences higher humidity at 82%, while August is at a more comfortable 76%. Precipitation in September is somewhat lower, with 61 mm (2.4 in) over 10 days, compared to August's 77 mm (3.0 in) over 13 days. For more detailed insights on August weather, you can visit Worthing weather in August.

September typically showcases a milder climate with average temperatures hovering around 16°C (62°F), while October brings a noticeable drop to an average of 14°C (57°F). Precipitation increases significantly in October, with 126 mm (5.0 in) expected over 15 days, compared to September's 61 mm (2.4 in) over 10 days. Additionally, humidity rises from 82% in September to 90% in October, making the latter feel considerably cooler and more damp. For a detailed look at October's weather trends, you can check out Worthing weather in October.

September weather tends to be milder, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 23°C (73°F) and an average of 16°C (62°F). This month typically sees less rainfall, with about 61 mm (2.4 in) of precipitation spread over approximately 10 days, and humidity levels around 82%. In contrast, November brings a significant chill, with temperatures dropping to a minimum of 2°C (37°F) and an average of 11°C (51°F), peaking at 16°C (61°F). Rainfall increases dramatically to 102 mm (4.0 in) over around 15 days, coupled with higher humidity at 92%. For a detailed look at the weather patterns for this month, check out Worthing weather in November.

In September, temperatures are generally mild, ranging from a minimum of 10°C (50°F) to a comfortable maximum of 23°C (73°F), with an average of 16°C (62°F). The month sees about 61 mm (2.4 in) of precipitation over approximately 10 days, and humidity levels hover around 82%. In contrast, December brings much colder weather, with temperatures dropping to a minimum of 2°C (35°F) and reaching a maximum of 13°C (56°F), averaging just 9°C (48°F). Precipitation increases significantly to 131 mm (5.1 in), spread over 17 days, and humidity rises to 92%. For more detailed insights on December weather, check out Worthing weather in December.

Compare Worthing's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Worthing

As September unfolds in Worthing, the weather transitions from the warmth of summer to the coolness of autumn, creating a unique blend that sets it apart from other months. With average temperatures hovering around a comfortable 16°C (62°F), this month showcases a gentle decline from the peak summer heat, while still allowing for occasional warm days reaching up to 23°C (73°F). Rainfall becomes more frequent, with about 10 days of precipitation totaling 61 mm (2.4 in), contributing to the lushness of the landscape. This increased moisture, coupled with a humidity level nearing 82%, can lend a refreshing edge to the atmosphere. For a deeper dive into the nuances of Worthing's climate, explore Worthing Climate.