Last updated: March 17, 2025
September in Swanage, United Kingdom offers a temperate climate as summer transitions into autumn. With maximum temperatures reaching 21°C (71°F) and an average of 16°C (62°F), visitors can expect mild days ideal for exploration. However, the minimum temperature drops to around 11°C (52°F), reminding us that cooler evenings are on the horizon. This month sees 54 mm (2.1 in) of rainfall spread over about 9 days, contributing to the region's lush landscape. Coupled with a humidity of 82%, September presents a beautifully dynamic weather experience, making it a delightful time to visit.
As summer fades into autumn, September in Swanage ushers in a gentle transition, characterized by pleasantly mild temperatures. With minimums around 11°C (52°F) and averages reaching 16°C (62°F), the warmth lingers a while longer. Daytime highs peak at 21°C (71°F), making it one of the more inviting months of the year, especially when compared to the cooler months that precede it. This slight dip in temperature from August signals a shift, yet the balmy early autumn days remain perfect for leisurely walks along the stunning coast or enjoying local festivities. Overall, September's conditions provide a charming blend of summer's end and autumn's onset, ideal for both residents and visitors alike.
September in Swanage, United Kingdom, sees a moderate precipitation total of 54 mm (2.1 in), accompanied by 9 rainfall days. This marks a slight decrease from the summer months, where August recorded 71 mm (2.8 in) over the same number of days, hinting at a gradual transition towards the wetter autumn season. Interestingly, the precipitation levels in September are noticeably lower than the peaks observed in the upcoming months, particularly October, which typically brings a significant increase to 137 mm (5.4 in) over 17 days. As the month progresses, the days grow shorter and the likelihood of rain becomes more pronounced, setting the stage for the dramatic shifts in weather that characterize the fall. Overall, September serves as a bridge between the drier summer and the more rain-laden autumn, showcasing a delicate balance in Swanage's annual climate patterns.
As autumn approaches in Swanage, United Kingdom, September brings a slight uptick in humidity levels, averaging 82%. This increase marks a continuation of the trend seen during the summer months, where humidity dipped to its lowest point at 71% in July before rising again in August. September's humidity level serves as a reminder of the gradual transition from the warmer, more humid summer to the cooler, dampier fall months, setting the stage for October's notable rise back to 90%. Overall, while September still enjoys relatively comfortable conditions, the data suggests a shift toward the wetter months ahead, reflecting the high humidity levels typical of the coastal climate through the fall and winter.
In September, Swanage experiences a UV Index of 6, classifying the exposure level as high. As summer gives way to autumn, the burn time remains relatively short at 25 minutes, similar to earlier months like May and April. This transition reflects the gradual decline in UV levels that peaks during the vibrant summer months of June and July. While September still encourages outdoor activities, it's essential to remain vigilant about sun protection as the sun's intensity, although decreasing, can still pose risks. For more detailed insights on solar exposure throughout the year, check out the Swanage UV Index.
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As summer fades into autumn, September in Swanage, United Kingdom, shines brightly with an impressive 333 hours of sunshine, a marked contrast to the winter months. Following a peak in July with 435 hours, the sun's embrace begins to mellow but remains generous, allowing for plenty of outdoor adventures and relaxation by the coast. While the daylight hours start to dwindle as October approaches, September's warmth still recalls the vibrant days of May and June, when sunshine first reached its zenith. This transitional month not only offers a beautiful backdrop for experiencing Swanage's stunning landscapes but also highlights a significant drop in sunlight as winter looms, making it a cherished time to savor the last whispers of summer.
In Swanage, United Kingdom, the likelihood of enjoying sunny weather in September stands at 37%, positioning it comfortably in the middle of the spectrum throughout the year. While this percentage is an improvement over the cloudy days of January and December, it reflects a slight dip from the sunnier months of April and July, where the chances soar to 59% and 45%, respectively. Interestingly, September’s sunlit prospects are only a notch above those of October and November, both at 30% and 37%, indicating a gradual transition towards the cooler, cloudier autumn months. As summer bids farewell, those visiting Swanage can still anticipate a fair share of sun, but should be prepared for the occasional cool breeze and rainfall that heralds the arrival of fall.
As summer fades into autumn, September in Swanage, United Kingdom, offers a gentle transition with 12 hours of daylight. This marks a notable decline from the peak 16 hours in June, yet it still provides a generous amount of sunlight for those savoring the lingering warmth of early fall. The month begins with an ample supply of daylight, encouraging outdoor activities as days gradually shorten ahead of winter. Following September, daylight dips further, reaching 10 hours in October, mirroring the rhythm of nature as the year draws to a close. This gradual shift reflects the cyclic beauty of Swanage's yearly light, where each month tells its own story of the seasons.
As September arrives in Swanage, the winds begin to ease, boasting an average speed of 5.7 m/s (13 mph). This marks a continuation of the trend from the summer months, where gusts were mild with July's 5.2 m/s and August's 6.1 m/s. Compared to the spring's brisker winds, which peaked at 6.8 m/s in March, September's breezes reflect the transition to autumn, where a gentle calm prevails. Following the seasonal shift, the winds pick up again in October, reaching 7.5 m/s (17 mph), indicating the return of more robust gusts as the year draws to a close. Overall, September epitomizes a serene yet invigorating coastal experience, inviting both locals and visitors to enjoy its picturesque setting.
The weather in Swanage 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 Swanage and find detailed weather information for every month.
September and January present contrasting weather patterns. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 21°C (71°F), with an average temperature of 16°C (62°F). The month experiences about 54 mm (2.1 in) of precipitation over 9 days and a humidity level of 82%. In stark contrast, January's temperatures are noticeably cooler, ranging from a chilly 2°C (36°F) to a maximum of 13°C (56°F), with an average of just 8°C (46°F). It also sees higher precipitation at 73 mm (2.9 in) spread across 11 days, accompanied by even greater humidity at 91%. For more insights on winter conditions, check out Swanage weather in January.
September and February showcase notably different weather patterns. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 21°C (71°F), with an average of 16°C (62°F). The month experiences moderate rainfall, with about 54 mm (2.1 in) over 9 days and humidity around 82%. In contrast, February is much cooler, with temperatures ranging from 0°C (32°F) to a high of 12°C (55°F) and an average of just 8°C (47°F). Precipitation is slightly higher in February at 74 mm (2.9 in), occurring over 13 days, and humidity increases to 89%. For more details on February weather, you can visit Swanage weather in February.
September typically offers milder weather compared to March. With average temperatures ranging from a low of 11°C (52°F) to a high of 21°C (71°F), September presents a comfortable climate for outdoor activities. In contrast, March experiences colder temperatures, with averages between -1°C (31°F) and 12°C (55°F), making it feel brisk and often chilly. Additionally, September has relatively lower precipitation at 54 mm (2.1 in) across 9 days, while March sees more rain with 74 mm (2.9 in) spread over 14 days, contributing to a higher humidity level of 86%. For more detailed information, check out Swanage weather in March.
When comparing the weather in September and April, September tends to be noticeably warmer and wetter. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 21°C (71°F), with an average of 16°C (62°F). The month sees about 54 mm (2.1 in) of rainfall over approximately 9 days, while the humidity hovers around 82%. In contrast, April features cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 16°C (61°F), averaging just 9°C (49°F). The precipitation is lower at 36 mm (1.4 in) spread over about 6 days, accompanied by a slightly higher humidity of 85%. For more specific details on April weather in Swanage, you can check Swanage weather in April.
When comparing the weather in September and May, September generally offers milder temperatures, with a minimum of 11°C (52°F) and an average of 16°C (62°F), while in May, the temperatures range from a minimum of 6°C (43°F) to an average of 12°C (54°F). Both months experience similar levels of precipitation, each receiving around 55 mm (2.1 in) in rainfall over approximately nine days. Additionally, September has a slightly higher humidity level at 82% compared to May's 79%. For more details on May's climate, you can refer to Swanage weather in May.
In comparing the weather between September and June, September tends to be slightly warmer, with average temperatures reaching 16°C (62°F) compared to June's average of 15°C (59°F). Both months experience a minimum temperature of around 11°C (51°F), but September has a higher maximum of 21°C (71°F) versus June's 20°C (68°F). In terms of precipitation, September sees 54 mm (2.1 in) of rainfall over 9 days, while June experiences a bit more with 69 mm (2.7 in) over the same number of days. Humidity levels are similar, with September at 82% and June at 80%. For more details, you can check Swanage weather in June.
When comparing the weather in September and July, both months exhibit similar maximum temperatures, peaking at around 21°C (71°F). However, September tends to be slightly cooler overall, with minimum temperatures averaging 11°C (52°F) compared to July's 13°C (56°F). Additionally, September experiences more precipitation, with 54 mm (2.1 in) over 9 days, while July has 46 mm (1.8 in) spread over just 8 days. The humidity also differs, remaining higher in September at 82%, compared to 71% in July. For more details, you can check Swanage weather in July.
Comparing the weather between August and September reveals some notable differences. In August, temperatures range from a minimum of 13°C (55°F) to a maximum of 24°C (75°F), with an average of 17°C (63°F). This month also experiences more precipitation, totaling 71 mm (2.8 in) over 9 days, and a humidity level of 76%. In contrast, September sees slightly cooler conditions, with temperatures varying from 11°C (52°F) to 21°C (71°F) and an average of 16°C (62°F). Although the total precipitation decreases to 54 mm (2.1 in) over the same number of days, humidity rises to 82%. Overall, September offers a transition to cooler and more humid weather compared to the warmer and slightly wetter days of August. For more details on August's weather, visit Swanage weather in August.
September typically offers milder weather with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 21°C (71°F), accompanied by 54 mm (2.1 in) of precipitation over about 9 rainy days and a humidity level of 82%. In contrast, October sees a notable drop in temperatures, averaging between 6°C (43°F) and 19°C (67°F), with precipitation significantly increasing to 137 mm (5.4 in) over 17 days and an elevated humidity of 90%. This shift marks a transition to more unsettled and damp conditions as autumn progresses. For further details, you can check the weather overview here: Swanage weather in October.
September typically offers milder weather, with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 21°C (71°F). The month sees about 54 mm (2.1 in) of precipitation over 9 days with a humidity level of 82%. In contrast, November brings a significant drop in temperature, with averages from 3°C (38°F) to 16°C (61°F), accompanied by increased rainfall of 106 mm (4.2 in) spread across 16 days and higher humidity at 92%. This shift marks November as a much cooler and wetter month. For more details, you can check Swanage weather in November.
September typically presents milder weather with average temperatures ranging from 11°C (52°F) at night to a comfortable 21°C (71°F) during the day. It also has a relatively low precipitation of 54 mm (2.1 in) over about 9 days, making it a pleasant month for outdoor activities. In contrast, December brings considerably chillier conditions, with temperatures dropping to a minimum of 3°C (38°F) and peaking at 14°C (57°F), featuring an average of just 9°C (49°F). Precipitation significantly increases to 129 mm (5.1 in), occurring over 17 days, alongside heightened humidity levels of 92%. For more detailed information, you can check Swanage weather in December.
As summer transitions into autumn, September in Swanage offers a delightful mix of mild temperatures and occasional rainfall, setting it apart from the hotter, drier months of July and August. With average highs gently dipping to 16°C and an atmosphere infused with 82% humidity, visitors can expect a refreshing experience, albeit interspersed with about nine days of rain. This month’s weather invites you to enjoy the stunning coastal scenery and outdoor adventures while still packing for a light shower or two. For a deeper understanding of the seasonal changes and what to anticipate throughout the year, explore the details at Swanage Climate.