Last updated: March 17, 2025
In September, Bicester, United Kingdom, experiences a dynamic blend of weather characteristics. With maximum temperatures reaching 29°C (85°F), the early part of the month often feels quite warm. However, as autumn approaches, the average temperature settles around 15°C (58°F), while cooler nights can drop to a minimum of 3°C (37°F). The month is characterized by 56 mm (2.2 inches) of precipitation over 10 days, contributing to the area’s lush greenery. Accompanied by a notable 82% humidity, September offers a refreshing yet unpredictable climate that marks the transition from summer to fall.
As September rolls into Bicester, the summer warmth gently gives way to the crispness of autumn. With temperatures ranging from a minimum of 3°C (37°F) to a pleasant maximum of 29°C (85°F), the month presents a delightful balance between lingering summer days and the cooler evenings ahead. The average temperature of 15°C (58°F) marks a transition, inviting residents and visitors alike to enjoy outdoor activities while surrounded by the vibrant colors of early fall. This shift in climate not only enhances the beauty of the landscape but also sets the stage for cozy evenings in, making September a truly enchanting time to experience all that Bicester has to offer.
In September, Bicester experiences an average precipitation of 56 mm (2.2 in) over 10 days of rainfall, marking a slight decrease compared to the summer months. This month bridges the transition from the warmer, wetter August, which brought 71 mm (2.8 in) of rain, to the often more drizzly October, expected to deliver an increased 92 mm (3.6 in). The trend shows that as summer gives way to autumn, rainfall becomes more frequent and heavier, indicating a gradual shift in the weather patterns. Overall, September offers a moderate level of precipitation, underscoring its role as a pivotal month in the seasonal transition within this charming UK locale.
In September, Bicester experiences a notable increase in humidity, rising to 82% as summer transitions into autumn. This uptick follows the relatively lower levels of 71% and 76% seen in July and August, suggesting a shift back to the more humid conditions typical of the earlier months in the year. Compared to September, the humidities in January and October—91% and 90% respectively—highlight the cyclical nature of Bicester's climate, with early autumn marking a resurgence of moisture in the air as the region prepares for the cooler months ahead. Thus, September serves as a bridge between the summer’s warmth and the damp chill of fall, creating a mixed but refreshing atmosphere.
As summer transitions to autumn, September in Bicester, United Kingdom, marks a notable shift in UV Index levels, with a measurement of 6, categorizing it as high. This dip from the peak summer months reveals the changing sun’s intensity but still necessitates mindful protection, as the burn time is approximately 25 minutes. Comparatively, August experiences a UV Index of 7, emphasizing the lingering warmth and sunlight. However, as we move toward October, the UV Index declines further, falling to 4. It’s a reminder that while the sun may not seem as fierce, UV rays can still pose a risk. Always stay informed about the UV Index to enjoy safe outdoor activities. For more detailed information, visit Bicester UV Index.
UV Risk Categories
September in Bicester, United Kingdom, continues to bask in the remnants of summer, with 287 hours of sunshine warming the early autumn air. This month stands out as a gentle transition from the sun-drenched heights of July and August, both boasting impressive totals of 388 and 344 hours, respectively. While days grow shorter, September still offers a significant amount of sunshine, highlighting a gradual decline from the season's peak, yet still capturing the essence of early fall. As the year progresses towards October, which sees a further dip to 230 hours, the golden hues of September serve as a beautiful reminder of summer’s lingering charm before the chill sets in.
In Bicester, September brings a moderate 28% chance of sunny weather, marking a slight improvement from the summer months that tend to be less predictable. While this probability is higher than the gloomy winter months, such as January with just 22% and December dipping to a mere 16%, it falls short of the more promising 49% seen in April. Interestingly, September's sunshine likelihood is comparable to November's 30%, suggesting that as autumn sets in, residents can still enjoy a fair amount of sunshine before the days grow shorter and darker. Overall, while the arrival of autumn can mean a decline in sunny days, September still offers a pleasant opportunity to soak up some sun before winter takes hold.
As the summer fades and autumn approaches, September in Bicester, United Kingdom, offers a balanced blend of daylight, with an average of 12 hours illuminating the days. This marks a gradual decline from the 16-hour peaks of June and July, reflecting the changing seasons. While September still enjoys longer days than the winter months ahead, it serves as a graceful transition to shorter daylight hours. The daylight diminishes notably in October and November, where it drops to 10 and 8 hours, respectively, echoing a seasonal rhythm familiar to the region. Overall, September captures the essence of late summer, preparing residents for the cozy embrace of autumn while still offering ample sunlight to enjoy the outdoors.
In Bicester, United Kingdom, the gentle September wind brings a refreshing change after the summer months, with an average speed of 3.6 m/s (8 mph). As the year progresses from January’s brisk 4.4 m/s (10 mph) to October’s slight uptick at 4.8 m/s (11 mph), it’s evident that September reflects a transitional phase, where the winds soften slightly compared to the earlier months. This trend showcases a gradual decrease from the moderately breezy patterns of spring and summer, as the countryside prepares for the cooler autumn days. With its calming breezes, September in Bicester invites residents and visitors alike to savor the outdoors, marking the end of summer and the beginning of fall’s serene charm.
The weather in Bicester 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 Bicester and find detailed weather information for every month.
September and January present contrasting weather experiences. In September, temperatures range from a mild 3°C (37°F) to a warm 29°C (85°F), with an average of 15°C (58°F). The month sees 56 mm (2.2 in) of precipitation over about 10 days and maintains a humidity level of 82%. In contrast, January cools down significantly, with temperatures dipping to a minimum of -4°C (25°F) and only reaching a maximum of 14°C (58°F), averaging 5°C (41°F). Precipitation in January is slightly lower at 52 mm (2.1 in), also spread over 10 days, but the humidity rises to 91%. For more details, check out Bicester weather in January.
When comparing the weather in September and February, it's clear that the two months exhibit distinct characteristics. September enjoys a warmer temperature range, with daily averages around 15°C (58°F) and highs reaching up to 29°C (85°F), contrasted with February's colder temperatures, which see averages around 6°C (43°F) and a max of 18°C (65°F). Precipitation levels are relatively similar, with September experiencing 56 mm (2.2 in) over about 10 days, while February sees slightly less at 51 mm (2.0 in) across 11 days. Additionally, February is marked by higher humidity at 89% compared to September's 82%. For a detailed look at the February conditions, you can check out Bicester weather in February.
September and March present distinct weather patterns, with September enjoying warmer temperatures compared to March. In September, temperatures range from a minimum of 3°C (37°F) to a maximum of 29°C (85°F), with an average of 15°C (58°F) and relatively lower humidity at 82%. In contrast, March experiences cooler temperatures, with a minimum of -6°C (21°F), average of 7°C (45°F), and a maximum of 21°C (71°F), accompanied by higher humidity at 86%. Both months see notable precipitation, with September receiving 56 mm (2.2 in) over about 10 days, while March records slightly more at 62 mm (2.4 in) across 13 days. For more detailed insights into March’s weather, explore Bicester weather in March.
September generally offers warmer temperatures compared to April, with average highs reaching up to 29°C (85°F), contrasted with April's maximum of 26°C (78°F). While both months experience a mix of cooler and warmer days, September's minimum temperature of 3°C (37°F) is notably higher than April's chilly -3°C (27°F). Additionally, September has a slightly higher average precipitation of 56 mm (2.2 in) over 10 days, compared to April's 38 mm (1.5 in) spread across 9 days. Both months exhibit high humidity levels, with September at 82% and April slightly higher at 85%. For more detailed information about the weather in April, check out Bicester weather in April.
September and May present a contrasting transition in weather as summer wanes and autumn approaches. In September, temperatures range from a minimum of 3°C (37°F) to a maximum of 29°C (85°F), with an average of 15°C (58°F). The month typically receives around 56 mm (2.2 in) of precipitation over approximately 10 days, and humidity levels hover around 82%. In contrast, May features slightly cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 26°C (79°F), averaging 12°C (54°F). Precipitation is a bit higher at 65 mm (2.6 in) spread across 11 days, while humidity is slightly lower at 79%. For a more detailed look at weather patterns in May, check out Bicester weather in May.
In comparing the weather conditions of September and June, September tends to offer a slightly wider temperature range, with minimums around 3°C (37°F) and maximums reaching up to 29°C (85°F). The average temperature in September is about 15°C (58°F), while June, with its warmer statistics, has minimums around 6°C (43°F) and maximums peaking at 31°C (88°F), leading to an average of 16°C (61°F). June also sees higher precipitation levels, totaling 73 mm (2.9 in) over approximately 12 days, compared to September's 56 mm (2.2 in) across 10 days. Additionally, while humidity remains relatively high in both months, September is slightly more humid at 82% compared to 80% in June. For a detailed look at June weather specifics, you can refer to Bicester weather in June.
In comparing the weather between July and September, July tends to be warmer, with average temperatures ranging from a minimum of 7°C (44°F) to a maximum of 36°C (97°F), while September experiences a more moderate range of 3°C (37°F) to 29°C (85°F). While July has a higher average temperature, it also has slightly more precipitation, totaling 67 mm (2.6 in) over 12 days, compared to September's 56 mm (2.2 in) over 10 days. Additionally, September exhibits higher humidity at 82%, while July maintains a relative humidity of 71%. For more details on July weather, visit Bicester weather in July.
September weather presents a notable shift from August, with cooler temperatures as the minimum drops to 3°C (37°F) compared to August's minimum of 7°C (46°F). The average temperature in September is slightly lower at 15°C (58°F), while August enjoys a warmer average of 17°C (63°F). Max temperatures also decline, peaking at 29°C (85°F) in September, a significant decrease from August's high of 34°C (93°F). Additionally, September experiences more frequent rainfall with 56 mm (2.2 in) over 10 days, whereas August sees slightly higher precipitation at 71 mm (2.8 in) over 12 days. Humidity levels are also higher in September at 82%, compared to 76% in August. For more details, check out Bicester weather in August.
September and October exhibit a noticeable shift in weather patterns. In September, temperatures range from a minimum of 3°C (37°F) to a maximum of 29°C (85°F), with an average of 15°C (58°F) and 56 mm of precipitation over 10 days. In contrast, October sees a drop in average temperature to 11°C (52°F), with minimums reaching freezing at 0°C (32°F) and maximums at 23°C (73°F). Additionally, October experiences increased precipitation, totaling 92 mm (3.6 in) across 13 days, along with higher humidity at 90%. The transition from September to October marks a significant cooling and wetting of the weather, making it a notable time of year. For more detailed insights, you can check out Bicester weather in October.
September typically experiences milder weather compared to November, with average temperatures ranging from a minimum of 3°C (37°F) to a maximum of 29°C (85°F), while November sees a drop in temperatures, with a range from -3°C (28°F) to a maximum of 17°C (62°F). Both months have similar levels of precipitation, with September receiving 56 mm (2.2 in) over approximately 10 days, whereas November has slightly higher precipitation at 59 mm (2.3 in) over about 12 days. Additionally, the humidity increases from September's 82% to November's 92%, making the latter month feel cooler and more damp. For more details on November weather, you can visit Bicester weather in November.
September and December present two distinctly different weather profiles. In September, temperatures range from a minimum of 3°C (37°F) to a maximum of 29°C (85°F), with an average of 15°C (58°F), making it a relatively mild month. The precipitation totals 56 mm (2.2 in) over about 10 days, and humidity stands at 82%, contributing to a comfortable yet sometimes humid atmosphere. In contrast, December sees significantly cooler temperatures, with a minimum of -6°C (22°F) and a maximum of 14°C (58°F), resulting in an average of just 6°C (43°F). This winter month experiences increased precipitation of 82 mm (3.2 in) spread across 15 days, and higher humidity at 92%, leading to a chillier and wetter climate. For more specific details on December weather, you can check Bicester weather in December.
As September ushers in the transition from summer to autumn in Bicester, the weather reflects a delightful blend of warmth and coolness. This month often features comfortable temperatures, with highs reaching into the upper 20s, providing a final taste of summer before the chill sets in. However, it also welcomes increased humidity and occasional showers, making it one of the wetter months with a noticeable uptick in precipitation days. This combination creates a unique atmosphere where crisp mornings meet balmy afternoons, setting the perfect backdrop for outdoor activities. For a deeper understanding of Bicester's weather patterns throughout the year, be sure to check out Bicester Climate.