Last updated: March 17, 2025
Experience the charm of Southport, United Kingdom, in September, where the weather offers a delightful mix of mild temperatures and occasional rain. With a maximum temperature of 24°C (75°F) and an average of 15°C (59°F), the days are comfortably warm, while the nights may cool down to a refreshing 8°C (47°F). Be prepared for the 17 days of rain, contributing to a total precipitation of 146 mm (5.8 in), which keeps the lush landscapes vibrant. With humidity levels around 85%, it’s an ideal time for cozy walks along the beach or exploring local attractions, embracing both the warmth and the refreshing sea breezes.
As September rolls into Southport, the temperatures begin to signal the transition from the blissful warmth of summer to the crispness of autumn. With a minimum temperature of 8°C (47°F) and a comfortable average of 15°C (59°F), this month offers a pleasant respite, boasting maximums reaching up to 24°C (75°F). While the evenings can start to feel a touch cooler, the generally mild conditions invite locals and visitors alike to savor the beautiful early autumn scenery. Compared to the preceding summer months, where highs soared to 26°C (79°F), September provides a gradual decline in temperatures, making it a favorable time for outdoor activities before the chill of October settles in.
September in Southport, United Kingdom, is characterized by substantial precipitation, with an average of 146 mm (5.8 in) of rainfall recorded across 17 days. This marks a notable shift from the drier summer months, where August led the way with 162 mm (6.4 in) of rain over 21 days. As the region transitions into autumn, precipitation levels spike once again, paving the way for October’s even higher average of 169 mm (6.7 in). The overall trend suggests that while September still retains a generous amount of rainfall, the pattern of increasing precipitation continues into the fall, setting expectations for a damp start to the season.
In September, humidity levels in Southport, United Kingdom, sit at a comfortable 85%, marking a slight rise from the preceding summer months. This increase suggests a transition into the wetter autumn season, as the air becomes more saturated following the relatively drier July and August, which recorded 78% and 79% respectively. As the year progresses, humidity tends to elevate, with notable peaks reaching 90% in October and 91% in November. This gradual rise highlights the cyclical nature of Southport's climate, where September acts as a gentle bridge between the lingering warmth of summer and the inevitable chill of winter, setting the stage for the more humid months ahead.
As September rolls in, Southport experiences a slight dip in the UV Index, settling at 5, which falls under the moderate exposure category. This marks a continuation of the sun's intensity from the high summer months, where the UV Index peaked at 8. With a burn time of 30 minutes, it’s important to remain vigilant against overexposure, especially as the sun can still be deceptively strong. Comparatively, this trend shows a return to more temperate conditions, paving the way into autumn. For effective sun safety tips and to monitor changes throughout the year, explore the detailed insights available at Southport UV Index.
UV Risk Categories
As summer gives way to autumn, September in Southport, United Kingdom, shines with a commendable 299 hours of sunlight, making it one of the brighter months of the year. This marks a slight decline from the peak summer months, where July dazzled with 410 hours and May brought 405 hours of radiant light. However, September still maintains a robust glow, significantly outpacing the winter months that follow, such as November with only 117 hours. The steady decline as the year progresses highlights the typical British seasonal shift, yet September allows residents and visitors alike to savor the lingering warmth and brightness before the darker days set in.
In Southport, the likelihood of sunny weather tends to fluctuate throughout the year, with September seeing a modest chance of sun at 25%. This slightly below-average figure aligns with the general trend of diminishing sunshine as summer fades, following an April peak of 54%. Notably, the months leading into September, such as June and July, exhibit higher probabilities of sunshine at 27% and 39%, respectively. As autumn approaches, the chances further decline, reflecting the seasonal shift. Thus, while September may offer occasional sunny spells, it's wise for visitors to prepare for the unpredictable weather typical of this transitional month.
As summer gracefully fades into autumn, September in Southport, United Kingdom, offers a delightful transition with approximately 12 hours of daylight. This marks a noticeable shift from the sun-soaked months of July and August, which boast the year's longest days at 16 hours. Following the sun’s peak in June, where it lingers for an impressive 16 hours as well, September gradually leads into shorter days, reminiscent of the 11 hours found in March. The diminishing daylight invites a cozy ambiance, encouraging locals and visitors alike to savor the gentle warmth of early autumn evenings before the days dwindle further in October. This gradual decrease sets the stage for the shorter daylight durations of the impending winter months, making September a captivating time to experience the changing seasons in Southport.
As September settles in Southport, the winds begin to exhibit a gentle shift, with an average wind speed of 4.7 m/s (11 mph). This slight increase from the summer’s lull reveals a transitionary phase, as the once-placid breezes of July and August start to pick up just a bit. Historically, September’s winds have shown a consistent pattern of being calmer than the brisk October gales that follow, which average 7.2 m/s (16 mph). The autumn air begins to carry a refreshing crispness, suggesting that while the summer months may have brought softer winds, the dynamic change in September heralds the bolder gusts of the coming season. This trend highlights the seasonal cycle, where the serene summer gradually yields to the more vigorous winds of autumn, inviting both locals and visitors to embrace the enchanting changes along Southport’s coast.
The weather in Southport 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 Southport and find detailed weather information for every month.
In September, temperatures range from a minimum of 8°C (47°F) to a warm maximum of 24°C (75°F), with an average of 15°C (59°F). This month also sees higher precipitation, with 146 mm (5.8 in) falling over 17 days, alongside a relative humidity of 85%. In contrast, January brings a significant drop in temperature, with a minimum of -1°C (31°F) and a maximum of 13°C (55°F), averaging around 6°C (43°F). Precipitation decreases to 98 mm (3.9 in) over 13 days, while humidity rises slightly to 89%. For more details on the winter weather, you can check Southport weather in January.
In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 24°C (75°F), with an average of 15°C (59°F), making it a much warmer month overall. However, September also sees significant rainfall, with 146 mm (5.8 in) of precipitation over 17 days and a high humidity level of 85%. In contrast, February experiences much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 13°C (56°F), leading to an average of 6°C (43°F). Although February has slightly less precipitation at 121 mm (4.8 in), it maintains a similar number of rainy days (17) and a slightly higher humidity level of 88%. For a detailed look at February weather, check out Southport weather in February.
September and March present contrasting weather patterns. In September, temperatures range from a mild 8°C (47°F) at their lowest to a pleasant 24°C (75°F) at their peak, with an average of 15°C (59°F). The month sees a higher precipitation level of 146 mm (5.8 in) over 17 days and boasts a humidity level of 85%. In contrast, March experiences cooler conditions, with temperatures dipping as low as -3°C (26°F) and only reaching a maximum of 15°C (59°F), while the average is much lower at 7°C (45°F). Precipitation in March is somewhat less at 118 mm (4.6 in), also spread over 17 days, and humidity remains slightly higher at 86%. For more details on March weather, you can refer to Southport weather in March.
September generally experiences milder temperatures compared to April, with average highs reaching 24°C (75°F) and lows around 8°C (47°F), while April sees a cooler average high of 19°C (67°F) and a low of 2°C (35°F). Precipitation levels are notably higher in September, with 146 mm (5.8 in) of rain spread over 17 days, compared to April's 52 mm (2.0 in) over just 10 days. Humidity levels are similar in both months, hovering around 84% to 85%. For a more detailed look at April weather, visit Southport weather in April.
September and May exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 24°C (75°F), with an average of 15°C (59°F). The month experiences relatively high humidity at 85% and is characterized by substantial rainfall, totaling 146 mm (5.8 in) over 17 days. In contrast, May tends to be cooler, with temperatures ranging from 4°C (40°F) to 23°C (74°F), averaging around 12°C (53°F). The precipitation in May is significantly less, amounting to 64 mm (2.5 in) over 12 days, and the humidity is slightly lower at 79%. For more details on the weather during this month, you can visit Southport weather in May.
When comparing the weather in September and June, one notable difference is the average temperature, which remains fairly consistent at 15°C (59°F) for both months. However, September typically experiences a wider temperature range, with maximums reaching up to 24°C (75°F) compared to June's 25°C (76°F). Precipitation levels are higher in September, with 146 mm (5.8 in) falling over 17 days, whereas June sees less rain at 110 mm (4.3 in) over just 15 days. Additionally, September has slightly higher humidity at 85%, while June sits at 81%. For more specific details about June weather, you can check out Southport weather in June.
When comparing the weather in September and July, notable differences emerge. September experiences a slightly wider range of temperatures, with minimums dipping to 8°C (47°F) and maximums reaching 24°C (75°F), while July maintains a warmer profile, with minimums at 11°C (53°F) and maximums peaking at 26°C (79°F). In September, the average temperature stands at 15°C (59°F), compared to July’s average of 16°C (62°F). Precipitation is more pronounced in September, accumulating to 146 mm (5.8 in) over 17 days, whereas July sees less rainfall at 116 mm (4.6 in) across 16 days. Additionally, September has a higher humidity level at 85%, compared to 78% in July. For a more detailed look at July weather, you can visit Southport weather in July.
September generally presents cooler weather compared to August, with average temperatures dropping from 16°C (62°F) in August to 15°C (59°F) in September. The minimum temperature in September is lower at 8°C (47°F), compared to 10°C (51°F) in August. Although September experiences slightly less precipitation at 146 mm (5.8 in) over 17 days, it still remains quite wet, while August has a bit more rainfall totaling 162 mm (6.4 in) across 21 days. The humidity in September is higher, at 85%, compared to 79% in August, making the former feel a bit more uncomfortable despite the cooler temperatures. For more details on the weather in August, you can check Southport weather in August.
September typically offers milder temperatures, with an average of 15°C (59°F) and highs reaching 24°C (75°F), making it a comfortable transition from summer to autumn. In contrast, October experiences cooler weather, with average temperatures dropping to 12°C (54°F) and maximums around 19°C (67°F). While September has 146 mm (5.8 in) of rainfall over about 17 days, October brings slightly more precipitation at 169 mm (6.7 in) across 22 days, leading to a higher humidity level of 90%. For a detailed look at conditions, visit Southport weather in October.
September and November present quite different weather experiences. In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 24°C (75°F), with an average of 15°C (59°F). The month sees a fair amount of rain, totaling 146 mm (5.8 in) over 17 days, while humidity is moderately high at 85%. In contrast, November brings cooler conditions, with temperatures dipping to a minimum of 2°C (35°F) and reaching a maximum of 15°C (60°F), resulting in a cooler average of 9°C (49°F). Though slightly less rainfall occurs in November, totaling 134 mm (5.3 in) over 20 days, humidity increases to 91%, making the air feel a bit more damp. For more details, you can check Southport weather in November.
September and December present distinctly different weather patterns. In September, temperatures range from a mild 8°C (47°F) at night to a comfortable 24°C (75°F) during the day, with an average of 15°C (59°F). This month experiences significant rainfall, averaging 146 mm (5.8 in) over 17 days and humidity is relatively high at 85%.
In contrast, December sees much colder temperatures, with a minimum of 0°C (33°F) and a maximum of only 12°C (54°F), resulting in an average temperature of 7°C (45°F). Precipitation increases slightly to 159 mm (6.2 in) spread over 20 days, and humidity also rises to 89%. For more details on the weather in December, you can check Southport weather in December.
As September arrives in Southport, the weather begins to signal a shift from the warmth of summer to the cool embrace of autumn. With a unique blend of moderate temperatures and relatively high humidity, this month stands out as a transitional period where crisp mornings and mild afternoons become the norm. The frequency of rainy days increases, making outdoor activities a bit of a gamble, yet the vibrant colors of the changing leaves offer their own charm. For those looking to explore seasonal changes, September serves as a gentle herald of the cooler months ahead. To learn more about how September fits into the overall climate patterns of Southport, visit Southport Climate.