Last updated: March 17, 2025
September in High Wycombe, United Kingdom offers a transition into autumn, characterized by varied weather conditions. During this month, temperatures reach a maximum of 29°C (84°F), while the average hovers around a mild 15°C (59°F), dipping to a refreshing minimum of 3°C (38°F). With a total precipitation of 54 mm (2.1 in) spread over about 10 days, residents can expect intermittent showers that contribute to the region's lush greenery. Additionally, the humidity level at 82% creates a moist atmosphere, enhancing the overall sensory experience of early fall in this picturesque locale.
As September unfolds in High Wycombe, the transition from the warm summer months to a more invigorating autumn is palpable. With temperatures ranging from a minimum of 3°C (38°F) to a maximum of 29°C (84°F), this month offers a mild average of 15°C (59°F), allowing residents and visitors alike to enjoy the vibrant colors of fall while still relishing the lingering warmth of summer. The gradual drop in temperature signals the end of the hot spells experienced in July and August, yet the pleasant weather still invites outdoor activities and local festivities. This perfect blend of warmth and crispness makes September a delightful time to experience High Wycombe’s beautiful landscapes and rich community spirit.
In September, High Wycombe experiences a transitional phase in weather, characterized by 54 mm (2.1 in) of precipitation over 10 days. This amount mirrors the rain seen earlier in the year, particularly in January, with both months receiving similar volumes. However, as summer fades, September's rainfall appears less intense than the preceding months of July and August, which averaged significantly more at 67 mm (2.6 in) and 73 mm (2.9 in), respectively. The trend hints at a shift towards the wetter autumn months ahead, with October projected to bring a notable increase to 95 mm (3.7 in). Overall, September serves as a gentle bridge between summer's warmth and autumn's increasing precipitation, setting the stage for the season's changes.
As summer transitions into autumn, September in High Wycombe sees a rise in humidity, settling at 82%. This slight uptick reflects the lingering warmth of the season, contrasting with the far drier months of July and August, which registered at 71% and 76% respectively. Although humidity remains significantly lower than the peaks of winter—where levels soar to 90% and beyond—September's conditions can feel quite moist as they set the stage for the impending autumn weather. It’s a month where the air retains a touch of summer's warmth while gradually embracing the upcoming cooler, wetter months.
As September unfolds in High Wycombe, the UV Index remains at a high level of 6, indicating that outdoor enthusiasts should take care during sun exposure. This trend marks a slight decrease from the peak summer months of June and July, where the index soared to 8. In comparison to earlier months like March and April, where the index first climbed into the moderate and high categories, September's burn time stabilizes at 25 minutes, reflecting a continued need for sun protection. With the sunny days of late summer still lingering, it’s essential to remain vigilant against UV radiation. For more insights on UV levels throughout the year, visit High Wycombe UV Index.
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In High Wycombe, September brings a delightful blend of sunshine with an impressive 299 hours of sunlight, marking a transition from the sun-drenched peak of summer. As the year evolves, we witness a steady increase in hours from January’s mere 98 hours to the vibrant 394 hours in May, reflecting the return of longer, brighter days. June, with 383 hours of sunshine, sets the stage for July's record 402 hours, the sunniest month of the year. However, as autumn approaches, September's sun begins to wane, signaling the shift towards shorter days, which will drop further to 241 hours in October. This trend not only highlights the exuberance of summer but also foreshadows the cozy, cooler months ahead, painting a picture of High Wycombe's changing seasons.
September in High Wycombe offers a moderate chance of sunny weather, with about 27% likelihood of sunshine. This aligns closely with the preceding summer months, providing a pleasant transition from the warmth of July, which peaks at 37% sunshine. As autumn sets in, the chance of sunny days begins to decline, reflecting the city's shifting climate. In the grand scheme, September’s sunshine percentage is comparable to that of March and October, suggesting a consistent pattern of variable weather as the seasons change. While sunny spells may be fewer before winter approaches, the lingering summer warmth often makes September a delightful time to enjoy the outdoors.
As summer wanes, September in High Wycombe sees a gradual shift in daylight duration, offering about 12 hours of sunlight. This month marks a transition from the peak of summer, where July and June basked in a generous 16 hours of daylight, to the shorter days of autumn. The daylight duration begins to recede, reflecting a natural ebb as nature prepares for the cooler months ahead. Following the sun-soaked days of August, which enjoyed 14 hours of brightness, September's decrease signals a gentle reminder to savor the lingering warmth and vibrant hues of early autumn. As the days continue to shorten into October, residents can relish these gradually fading golden hours, embracing the cozy ambiance that autumn brings.
As September unfolds in High Wycombe, the wind whispers a gentle tune, averaging a soft 3.4 m/s (8 mph). This mild breeze marks a transitional phase, reflecting a dip from the summer's warmer air currents and hinting at the briskness of autumn ahead. Interestingly, September's wind speed aligns closely with the lighter breezes of early summer, just before they begin to pick up again in October. This gradual shift underscores a trend of decreasing wind as the year progresses from high summer, reaching a cooler tempo as nature prepares for the changing seasons. In this serene setting, residents experience a blissful calm before the wind's revival in the fall, creating a picturesque backdrop for early autumn activities.
The weather in High Wycombe 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 High Wycombe and find detailed weather information for every month.
In September, temperatures range from a mild 3°C (38°F) at night to a warm 29°C (84°F) during the day, with an average of 15°C (59°F). The month experiences about 54 mm (2.1 in) of precipitation over 10 days, with humidity levels around 82%. In contrast, January brings much colder weather, with temperatures dropping to a minimum of -6°C (22°F) and reaching a maximum of 14°C (58°F), averaging only 5°C (41°F). Although the precipitation remains the same at 54 mm (2.1 in), it falls over just 9 days, and humidity rises to 91%. This stark contrast in temperature and humidity highlights the seasonal shift from the warmth of September to the chill of January. For more details, you can check out High Wycombe weather in January.
September and February present distinctly different weather patterns. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 29°C (84°F), with an average of 15°C (59°F) and a relatively warm atmosphere marked by an 82% humidity level. Rainfall occurs on about 10 days, accumulating to 54 mm (2.1 in). In contrast, February features cooler temperatures with a minimum of -5°C (22°F) and a maximum of 18°C (65°F), averaging only 6°C (43°F). The humidity is slightly higher at 89%, and precipitation is similar to September, totaling 51 mm (2.0 in) but spread over 11 days. For a detailed look at February weather specifics, you can check High Wycombe weather in February.
In September, temperatures range from a mild 3°C (38°F) to a warm max of 29°C (84°F), with an average of 15°C (59°F), making it a pleasant time of year. The month experiences around 54 mm (2.1 in) of precipitation over approximately 10 days, with humidity levels sitting at 82%. In contrast, March sees colder weather, with temperatures dipping as low as -6°C (22°F) and averaging around 7°C (45°F), while peaking at 22°C (71°F). The month is slightly wetter, with 58 mm (2.3 in) of rainfall spread across 13 days and a higher humidity of 86%. For more detailed weather information, you can visit High Wycombe weather in March.
Comparing the weather in September and April reveals notable differences in temperature and precipitation. In September, temperatures range from a cooler minimum of 3°C (38°F) to a warm maximum of 29°C (84°F), with an average of 15°C (59°F). This month also experiences higher precipitation, with 54 mm (2.1 in) occurring over about 10 days, while humidity remains relatively high at 82%. In contrast, April sees cooler temperatures overall, with a minimum reaching -3°C (27°F), an average of 9°C (49°F), and a maximum of 26°C (80°F). April has less precipitation, totaling 35 mm (1.4 in) over 9 days, and slightly higher humidity at 85%. For more detailed insights, you can check High Wycombe weather in April.
When comparing the weather in September and May, September tends to be warmer overall, with average temperatures reaching 15°C (59°F) compared to May's average of 13°C (55°F). September also sees higher maximum temperatures, peaking at 29°C (84°F) versus May's 26°C (79°F). However, May experiences slightly more rainfall, averaging 67 mm (2.7 in) over 12 days, compared to September's 54 mm (2.1 in) over 10 days. Humidity levels are relatively similar, with September at 82% and May at 79%. For more details on May's weather, check High Wycombe weather in May.
In comparing the weather between September and June, September showcases a broader temperature range, with minimums dipping to 3°C (38°F) and maximums reaching up to 29°C (84°F), while June's temperatures are generally warmer, ranging from a minimum of 6°C (44°F) to a maximum of 31°C (89°F). Both months experience a notable amount of precipitation, with September receiving 54 mm (2.1 in) over approximately 10 days, and June slightly wetter at 75 mm (3.0 in) across 11 days. Humidity levels are comparable, with September at 82% and June slightly lower at 80%. For a more detailed look at conditions in June, you can check High Wycombe weather in June.
In comparing the weather of September and July, we see notable differences in temperature and precipitation patterns. September experiences a broader temperature range with minimums around 3°C (38°F) and maximums up to 29°C (84°F), while July maintains milder minimums of 8°C (46°F) and can reach heights of 36°C (97°F). Additionally, July is characterized by higher average temperatures of 18°C (65°F) compared to September's average of 15°C (59°F). Precipitation levels are also distinct; July sees 67 mm (2.6 in) of rain over 12 days, whereas September, with 54 mm (2.1 in), has precipitation spread across 10 days. Humidity is higher in September at 82%, compared to July's 71%. For a deeper look into July's weather patterns, visit High Wycombe weather in July.
In comparing the weather of September and August, we observe notable differences in temperature and precipitation. September experiences cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 29°C (84°F), while August is warmer, ranging from a minimum of 8°C (46°F) to a maximum of 33°C (92°F). Precipitation levels also vary; September sees 54 mm (2.1 in) over 10 days, whereas August receives a greater amount at 73 mm (2.9 in) over 13 days. Additionally, September is slightly more humid at 82%, compared to August's 76%. For more detailed insights, you can explore High Wycombe weather in August.
In September, the weather is generally warmer, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 29°C (84°F) and an average of 15°C (59°F). The month sees 54 mm (2.1 in) of precipitation over about 10 days and maintains a humidity level of 82%. Conversely, October brings cooler temperatures, with a minimum of 1°C (33°F), an average of 11°C (53°F), and a maximum of 23°C (73°F). This month is also wetter, receiving 95 mm (3.7 in) of rainfall across 12 days and experiencing a higher humidity level of 90%. For more detailed information on October weather, you can check High Wycombe weather in October.
In comparing the weather between September and November, we see a notable shift as the seasons change. September enjoys milder temperatures, with an average of 15°C (59°F) and maximums reaching 29°C (84°F), while November's temperatures drop significantly, averaging only 8°C (46°F) and peaking at 16°C (62°F). Interestingly, precipitation levels are quite similar, with September receiving 54 mm (2.1 in) over about 10 days, and November seeing a slight increase to 56 mm (2.2 in) on 11 days. Moreover, humidity levels rise in November to 92%, compared to 82% in September, further emphasizing the cooler and damper conditions typical of late autumn. For more specifics on November's weather, you can check High Wycombe weather in November.
In September, the weather is generally milder with temperatures ranging from a cool 3°C (38°F) at night to a warm 29°C (84°F) during the day, averaging around 15°C (59°F). The month sees about 54 mm (2.1 in) of precipitation spread across 10 days, and the humidity is relatively high at 82%. In contrast, December brings a significant drop in temperatures, with minimums reaching -6°C (22°F) and daily highs peaking at 14°C (58°F), averaging just 6°C (43°F). Precipitation increases to 83 mm (3.3 in) over 14 days, accompanied by even higher humidity at 92%. For a detailed look at the weather patterns, check High Wycombe weather in December.
As September unfolds in High Wycombe, it presents a captivating transition from the warmth of summer to the cool embrace of autumn. With maximum temperatures reaching up to 29°C (84°F), the early part of the month can still feel quite balmy; however, as days progress, the average drops to a more moderate 15°C (59°F), and chilly nights can bring temperatures down to around 3°C (38°F). This month also sees increased precipitation, with about 10 days of rain contributing to a total of 54 mm (2.1 in), making it distinctly wetter than the summer months. The higher humidity levels at 82% add a touch of dampness to the air, which contrasts sharply with the drier, sunnier days of July and August. If you're keen to understand more about how these shifts shape the weather patterns throughout the year, explore the detailed insights at High Wycombe Climate.