Last updated: March 17, 2025
In September, Bournemouth, United Kingdom, offers a delightful mix of mild temperatures and moderate humidity. With a maximum temperature reaching 26°C (79°F) and an average around 16°C (60°F), the weather provides a pleasant backdrop for outdoor activities. However, visitors should be prepared for the occasional drizzle, as the month sees about 47 mm (1.8 in) of rain spread over approximately 9 days. Humidity can climb to a comfortable 82%, creating an invigorating atmosphere along the picturesque coast. Whether you’re exploring local attractions or enjoying the stunning beaches, Bournemouth in September promises a refreshing seaside experience.
As summer gracefully yields to autumn, September in Bournemouth showcases a delightful transition in temperatures. With minimums settling at 6°C (43°F) and averages around 16°C (60°F), the air remains pleasantly mild yet invigorating. Daytime highs can reach a comfortable 26°C (79°F), allowing for plenty of outdoor exploration before the cooler months set in. This month captures the essence of early autumn, offering a perfect blend of warmth and freshness, making it ideal for enjoying Bournemouth's stunning coastal beauty. The trends suggest a sense of gradual cooling, yet this vibrant seaside town still basks in the warmth of late summer's embrace.
In September, Bournemouth experiences a moderate shift in its precipitation patterns, receiving 47 mm (1.8 in) of rain over an average of 9 days. This marks a noticeable decrease compared to the preceding summer months, where August recorded higher rainfall of 71 mm (2.8 in). While September signals the transition towards autumn, it maintains a relatively dry profile compared to the wetter months that follow, particularly October, which sees a significant increase to 106 mm (4.2 in). Despite the drop, the balmy early autumn atmosphere often offers a pleasant balance, allowing residents to enjoy the outdoors while still preparing for the upcoming rainier season.
September in Bournemouth, United Kingdom, experiences a noticeable shift in humidity, settling at 82%. This marks a gradual increase from the summer months of July and August, where humidity levels dipped to 71% and 76%, respectively. As autumn approaches, the air becomes distinctly more humid, which aligns with the patterns observed in the preceding months. Interestingly, September's humidity is still significantly lower than the winter peaks of January and February, where levels soar above 90%. This transitional humidity hints at the changing seasons, as the mildness of early autumn prepares residents for the wetter months ahead.
As September rolls into Bournemouth, the UV Index dips slightly from the summer peak but remains in the high exposure category at a level of 6, indicating that while the days are getting shorter, sun safety is still essential. With a burn time of 25 minutes, it's important to seek shade and wear protective clothing during midday hours. This month marks a transition, signaling a decrease in intensity compared to the very high levels seen in July and June, but still necessitates vigilance for skin protection as autumn approaches. For more detailed information on seasonal UV trends, visit Bournemouth UV Index.
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September in Bournemouth marks a delightful transition as summer gently wanes, offering 315 hours of sunshine that inspire both locals and visitors alike. This month typically showcases a remarkable blend of warmth and crispness, as daylight hours decline from the peak summer months of July and August, which boast 422 and 382 hours respectively. Notably, September's sunshine is still significant compared to the grey of winter months, such as January, with just 102 hours, and it stands as a striking reminder of the sun's lingering presence before autumn fully sets in. As days shorten, the vibrant coastal town invites leisurely strolls along its famous beaches and picturesque gardens, making it an enchanting time to enjoy the fading summer glow.
In September, Bournemouth experiences a 32% chance of sunny weather, marking a slight uptick from the summer months of July and August, which hover around 30% and 39%, respectively. This modest increase reflects a transition into autumn, where sunny days can be both plentiful and unpredictable. As temperatures begin to cool, September stands out as a bridge between summer's warmth and the encroaching chill of fall. Interestingly, this percentage remains higher than the subsequent months, like October (27%) and January (23%), suggesting that for those seeking sun-soaked moments, early autumn may still hold the promise of pleasant days.
As September rolls into Bournemouth, the daylight hours start to wane, with the city enjoying 12 hours of light—a gentle decline from the sun-drenched summer months. Following the peak in June with 16 hours of daylight, September transitions smoothly from August's vibrant 14-hour days, signaling the approach of autumn. This gradual reduction highlights a trend where the daylight diminishes steadily from mid-summer, offering longer evenings for cozy gatherings and early nightfall as the year draws to a close. As nature transitions, residents can relish the crisp September air while still embracing the lingering warmth of summer.
As September arrives in Bournemouth, the gentle breeze of autumn makes its presence known, with an average wind speed of 4.0 m/s (9 mph). This marks a slight decrease compared to the summer months, where winds ranged between 3.9 and 4.4 m/s, reflecting the transition from warmer days to cooler, crisper air. The winds in September, while softer than the peak summer gusts, still maintain a refreshing quality, inviting locals and visitors alike to enjoy the scenic landscapes of the coast. With autumn fast approaching, this subtle shift in wind speed serves as a reminder of the seasonal changes that characterize Bournemouth's charming climate.
The weather in Bournemouth 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 Bournemouth and find detailed weather information for every month.
In September, the weather is generally mild, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 26°C (79°F), and an average temperature around 16°C (60°F). The month experiences about 47 mm (1.8 in) of precipitation over roughly 9 days, accompanied by a comfortable humidity level of 82%. In contrast, January brings much colder temperatures, with a minimum of -1°C (30°F), average of 6°C (44°F), and a maximum of 14°C (57°F). Precipitation increases slightly to 56 mm (2.2 in) over approximately 10 days, and humidity rises to 91%. For more details on winter weather, you can check Bournemouth weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a pleasant minimum of 6°C (43°F) to a maximum of 26°C (79°F) with an average of 16°C (60°F). The month typically sees 47 mm (1.8 in) of precipitation over about 9 days and has a humidity of 82%. In contrast, February experiences colder conditions, with temperatures ranging from a minimum of -4°C (26°F) to a maximum of 14°C (58°F), averaging 7°C (45°F). This month has heavier precipitation at 65 mm (2.5 in) over 12 days, alongside a higher humidity level of 89%. For more detailed information on February weather, check out Bournemouth weather in February.
When comparing the weather in September and March, significant differences can be observed. September typically boasts a milder climate, with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 26°C (79°F), presenting a more summery feel despite some precipitation of around 47 mm over 9 days. In contrast, March experiences cooler temperatures, with an average ranging from -4°C (25°F) to 17°C (63°F), and higher precipitation of about 68 mm spread across 13 days. The humidity levels are slightly higher in March at 86% compared to September's 82%, contributing to a distinct shift in feel as winter transitions to spring. For further details, you can check Bournemouth weather in March.
When comparing the weather in September and April, notable differences emerge. September generally enjoys warmer temperatures, with a minimum of 6°C (43°F) and an average of 16°C (60°F), peaking at 26°C (79°F). In contrast, April features cooler conditions, starting at a minimum of 0°C (32°F) and averaging 10°C (50°F), with a maximum of 22°C (71°F). While both months experience precipitation, September has slightly more rain, totaling 47 mm (1.8 in) over about 9 days, compared to April's 38 mm (1.5 in) over 7 days. Humidity levels are also high during both months, with April being marginally higher at 85% compared to September's 82%. For a closer look at April weather specifics, you can visit Bournemouth weather in April.
When comparing the weather in September and May, there are notable differences in temperature and precipitation. September tends to be warmer, with average temperatures around 16°C (60°F) and maximums reaching up to 26°C (79°F), while May has lower averages at 13°C (55°F) and highs of 24°C (75°F). Precipitation is slightly higher in May, with 59 mm (2.3 in) of rain over about 12 days, compared to September's 47 mm (1.8 in) over 9 days. Humidity levels are fairly similar, with September at 82% and May at 79%. For more specifics on May weather, you can check out Bournemouth weather in May.
In September, the temperature ranges from a minimum of 6°C (43°F) to a maximum of 26°C (79°F), with an average of 16°C (60°F). The month sees around 47 mm (1.8 in) of precipitation over 9 rainy days, and humidity levels are relatively high at 82%. In contrast, June offers slightly warmer temperatures with a minimum of 8°C (47°F) and a maximum of 27°C (81°F), while maintaining a similar average of 16°C (61°F). However, June experiences more precipitation, accumulating about 70 mm (2.8 in) over 10 days, with a humidity level of 80%. For more details, check out Bournemouth weather in June. Overall, both months display mild temperatures and notable humidity, but June tends to be wetter than September.
When comparing the weather in September and July, we can see distinct differences in temperature and humidity levels. September experiences a wider temperature range, with minimums around 6°C (43°F) and maximums reaching up to 26°C (79°F), while July tends to be warmer overall, with a minimum of 10°C (50°F) and a maximum of 29°C (85°F). Additionally, September's average temperature is slightly cooler at 16°C (60°F) compared to July's 18°C (65°F). Precipitation is also notable, with September receiving about 47 mm (1.8 in) over 9 days, while July sees slightly more precipitation at 51 mm (2.0 in) across 10 days. Humidity levels are higher in September at 82% compared to July's 71%, making September feel a bit more humid. For more detailed information about July weather in Bournemouth, you can visit Bournemouth weather in July.
In comparing the weather of September and August, September tends to be cooler, with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 26°C (79°F), compared to August's somewhat warmer range of 10°C (49°F) to 29°C (84°F). Additionally, September experiences slightly less precipitation at 47 mm (1.8 in) over 9 days, while August sees more rain, totaling 71 mm (2.8 in) across 10 days. Humidity levels are also higher in September at 82%, compared to August's 76%. For more detailed information, check out Bournemouth weather in August.
September and October exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 6°C (43°F) to a comfortable maximum of 26°C (79°F), with an average of 16°C (60°F). The month sees 47 mm (1.8 in) of precipitation over about 9 days, and humidity levels are around 82%. In contrast, October experiences cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 20°C (68°F), averaging 13°C (55°F). Rainfall increases significantly to 106 mm (4.2 in), occurring over approximately 14 days, and humidity rises to 90%. For more detailed insights, check Bournemouth weather in October.
September and November showcase a notable contrast in weather patterns. In September, temperatures range from a minimum of 6°C (43°F) to a pleasant maximum of 26°C (79°F), resulting in an average temperature of 16°C (60°F). The month experiences relatively mild conditions with 47 mm (1.8 in) of precipitation over 9 days and a humidity level of 82%. In stark contrast, November sees a significant drop in temperature, with a minimum of 0°C (32°F) and an average of just 9°C (49°F), peaking at 16°C (61°F). This month is wetter, with 73 mm (2.9 in) of rain over 12 days and a higher humidity level of 92%. For more detailed insights, you can check Bournemouth weather in November.
September and December exhibit a striking contrast in weather conditions. September enjoys a mild climate with average temperatures around 16°C (60°F), while December sees much colder conditions, with an average of only 8°C (46°F). The minimum temperature in December can drop to -1°C (30°F), making it substantially chillier than September's minimum of 6°C (43°F). Additionally, December experiences more precipitation, with 102 mm (4.0 in) over 14 rainy days, compared to September's 47 mm (1.8 in) across 9 days. Humidity levels also rise in December to 92%, compared to September’s 82%. For more detailed information, you can check Bournemouth weather in December.
As summer bids farewell, September in Bournemouth brings a delightful transition in weather, marked by average temperatures around 16°C (60°F) that offer a pleasant respite from the sweltering heat of the preceding months. While the occasional peak hits 26°C (79°F), it's the crisp hints of autumn that start to emerge, making evenings refreshingly cool with lows around 6°C (43°F). However, this month does see a bit more rain, with about 47 mm (1.8 in) falling over nine days, contributing to a heightened humidity of 82%. This shift in climate creates a unique charm for visitors and locals alike, as the vibrant hues of nature begin to change. For further insights into Bournemouth's weather patterns, explore our page on Bournemouth Climate.