Last updated: March 17, 2025
In Kingston upon Thames, September brings a varied climate, showcasing a maximum temperature of 28°C (83°F) and a comfortable average of 15°C (59°F). As summer wanes, temperatures can dip to a refreshing minimum of 4°C (39°F), creating a pleasant contrast. Although the region experiences approximately 45 mm (1.8 in) of rainfall over 10 days, the humidity remains relatively high at 82%, contributing to the lush greenery of the area. Embrace the transition of seasons as Kingston evolves into a tapestry of autumnal colors and fresh, crisp air.
In September, Kingston upon Thames begins to ease into autumn, showcasing a gentle transition in temperatures. With a minimum of 4°C (39°F) and an average around 15°C (59°F), the month offers a comfortable reprieve from the summer heat. The maximum temperature can still reach a pleasant 28°C (83°F), indicating that early fall often retains traces of summer warmth. This trend is indicative of a gradually cooling climate, as temperatures move from the high peaks of summer toward the crispness of October, making September an ideal time for outdoor activities and enjoying the vibrant fall scenery.
In September, Kingston upon Thames experiences a notable shift in precipitation patterns as summer gives way to autumn. With 45 mm (1.8 in) of rain spread across 10 days, the month features a decrease in both rainfall and rainy days compared to the previous months. This drop follows a trend established in the late summer, where peak precipitation was seen in June and August. As the year progresses, October typically sees a resurgence of rainfall, with averages rising to 84 mm (3.3 in), suggesting that September serves as a transitional period before the wetter autumn months. Overall, while September is relatively dry, it sets the stage for the changing weather that characterizes the latter part of the year.
In September, Kingston upon Thames experiences a notable rise in humidity, reaching an average of 82%. This increase follows the relatively comfortable summer months where July showcased the lowest humidity of the year at 71%. As the seasons transition, humidity levels start to creep up again, reminiscent of the wetter conditions typical in the latter part of the year. With October and November looming, which both see humidity levels soar to 90% and 92% respectively, September serves as a bridge, hinting at the return of the lush, damp atmosphere that defines Kingston's late autumn months. Overall, the trend indicates a shift from the warmth of summer to the moist embrace of fall, preparing residents for the changes ahead.
As the summer fades into September in Kingston upon Thames, the UV Index remains notably high at 6, indicating a strong need for sun protection during outdoor activities. This month, with a burn time of just 25 minutes, emphasizes the importance of being mindful of UV exposure as the sun’s intensity gradually decreases from the peak summer months. Following the very high readings of July and June, the slightly lower index this month shows a transition into fall, yet it still calls for moderate caution. The overall trend suggests that while UV levels drop towards winter, September’s sunshine can still catch the unprepared. For more detailed information on UV levels, visit Kingston upon Thames UV Index.
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As summer wanes, September in Kingston upon Thames continues to bask in a generous 300 hours of sunshine, making it a delightful transition month. The sunny days, while fewer than the peak of July and August, still offer plenty of bright moments for residents and visitors to enjoy the last warm days of the year. This month marks a contrast to the year’s earlier chill, where January's sparse 98 hours of sunlight feel ever so distant. Following the vibrant summer months, September’s sunshine heralds the onset of autumn, allowing for outdoor adventures amidst a backdrop of early fall colors, all while showcasing a trend of notable sunshine that peaks in mid-year and gradually recedes into the winter months.
In September, the likelihood of sunny weather in Kingston upon Thames stands at 29%, reflecting a slight downturn compared to the sunnier months of April and May, which boast nearly 50% chances of sunshine. While this month’s probabilities align closely with those of both March and July, they are notably higher than the dreary January and December. Overall, September offers a gentle transition into autumn, presenting opportunities for pleasant sunny days, albeit with the lingering threat of typical British unpredictability. As the summer warmth fades, those hoping to bask in some late sunshine will find September a mixed bag of cloudy skyscapes and occasional sunlit moments.
As summer transitions to autumn in Kingston upon Thames, September brings a gentle decline in daylight, offering about 12 hours of sunshine. This marks a shift from the long, vibrant days of July and August, which boast up to 16 and 14 hours respectively. By September, the gradual shortening of days becomes evident, a pattern that continues into October with just 10 hours of daylight. This month acts as a bridge between the sun-drenched days of summer and the more subdued light of winter, creating a serene atmosphere perfect for enjoying the changing colors of the season. Overall, September’s daylight duration reflects a natural rhythm, inviting residents and visitors alike to embrace the cozy onset of autumn.
As summer gives way to autumn, September in Kingston upon Thames witnesses a gentle shift in the breeze, bringing with it an average wind speed of 3.3 m/s (7 mph). This marks a noticeable decrease from the warmer months, where winds were relatively brisk, particularly in June and July. The softer gusts of September signify a transitional phase in the weather, as the warmth recedes and prepares for the cooler, more bracing winds of October. Interestingly, September's wind speed aligns closely with the calmer summer months, suggesting a lingering sense of tranquility before the crisp onset of fall. This inviting atmosphere makes for pleasant strolls along the riverside, where the air feels refreshingly light yet subtly invigorating.
The weather in Kingston upon Thames 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 Kingston upon Thames and find detailed weather information for every month.
September and January in Kingston upon Thames showcase distinct seasonal contrasts. In September, temperatures range from a mild 4°C (39°F) at night to a pleasant average of 15°C (59°F) during the day, peaking at 28°C (83°F). The month experiences about 45 mm (1.8 in) of rainfall spread over 10 days, along with a comfortable humidity level of 82%. In contrast, January brings much cooler conditions, with temperatures dipping to a minimum of -5°C (24°F) and averaging just 5°C (41°F), while the maximum only reaches 14°C (58°F). Rainfall slightly increases to 54 mm (2.1 in), also over 10 days, but humidity rises to 91%, adding to the chilly feel. For more detailed information on January weather, visit Kingston upon Thames weather in January.
When comparing the weather in September and February, there are notable differences in temperature and precipitation. September experiences milder conditions with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 28°C (83°F) and an average of 15°C (59°F). In contrast, February is much colder, with temperatures between -5°C (23°F) and 18°C (65°F), averaging only 6°C (43°F). While both months see a fair amount of precipitation, September has 45 mm (1.8 in) over 10 days, whereas February has slightly more at 53 mm (2.1 in) spread over 11 days. Additionally, humidity levels are higher in February at 89%, compared to September's 82%. For more details on February weather, you can visit Kingston upon Thames weather in February.
When comparing the weather in September and March, notable differences emerge. September typically sees a more moderate temperature range, with averages around 15°C (59°F) and highs reaching up to 28°C (83°F). Conversely, March is generally cooler, with average temperatures of 7°C (46°F) and lows dipping to -5°C (23°F). Both months experience some precipitation, with March receiving slightly more at 54 mm (2.1 in) over 13 days compared to September's 45 mm (1.8 in) across 10 days. Humidity levels are also higher in March at 86%, compared to 82% in September. For a detailed look at March weather in Kingston upon Thames, check this link: Kingston upon Thames weather in March.
When comparing the weather between September and April, several notable differences emerge. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 28°C (83°F), with an average of 15°C (59°F). The month tends to be relatively humid at 82%, with precipitation totaling 45 mm (1.8 in) over approximately 10 days. In contrast, April experiences cooler temperatures, dipping to a minimum of -2°C (29°F) and peaking at 26°C (80°F), while averaging around 10°C (49°F). This month is slightly less wet, with 33 mm (1.3 in) of precipitation over about 8 days and higher humidity at 85%. For a deeper dive into April's conditions, you can explore more at Kingston upon Thames weather in April.
When comparing the weather in September to that of May, September generally offers warmer temperatures with a minimum of 4°C (39°F) and an average of 15°C (59°F), peaking at 28°C (83°F). In contrast, May experiences slightly cooler conditions, with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 25°C (78°F) and an average of 13°C (55°F). While September has less precipitation at 45 mm (1.8 in) over 10 days, May is a bit wetter, receiving 62 mm (2.5 in) over 11 days. The humidity levels are relatively similar, with September at 82% and May at 79%. For more detailed information about the weather in May, visit Kingston upon Thames weather in May.
In comparing the weather of September and June, September typically experiences cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 28°C (83°F), compared to June's minimum of 7°C (45°F) and maximum of 31°C (89°F). The average temperature in September is about 15°C (59°F), slightly lower than June's average of 16°C (62°F). Both months see a similar level of humidity, with September at 82% and June at 80%. Rainfall is more pronounced in June, with 77 mm (3.0 in) over approximately 9 days, while September receives 45 mm (1.8 in) over 10 days. For a detailed look at June's weather, visit Kingston upon Thames weather in June.
When comparing the weather in September to that of July, September generally offers cooler temperatures, with average lows of 4°C (39°F) compared to July's minimum of 9°C (49°F). While September's maximum temperature reaches 28°C (83°F), July can soar to a high of 36°C (96°F), making it the hotter month overall. Precipitation levels are slightly higher in July at 64 mm (2.5 in) over 11 days, compared to September's 45 mm (1.8 in) over 10 days. Additionally, September is characterized by higher humidity, averaging at 82%, whereas July experiences a lower humidity level of 71%. For a closer look at July’s climate specifics, check out Kingston upon Thames weather in July.
In comparison to August, September experiences cooler temperatures, with a minimum of 4°C (39°F) and an average of 15°C (59°F), whereas August has a higher minimum of 8°C (47°F) and an average of 18°C (64°F). The maximum temperatures in September reach 28°C (83°F), which is notably lower than August's peak of 34°C (93°F). Additionally, September sees less precipitation overall, with 45 mm (1.8 in) over 10 days compared to August's 70 mm (2.7 in) across 12 days. However, September is slightly more humid, with an average humidity of 82% compared to August's 76%. For more detailed insights, check out Kingston upon Thames weather in August.
September tends to be warmer than October, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 28°C (83°F) and an average of 15°C (59°F). In contrast, October sees cooler temperatures, with a minimum of 1°C (34°F), an average of 12°C (54°F), and a maximum of 22°C (73°F). Precipitation is also higher in October, totaling 84 mm (3.3 in) over 12 days, compared to September's 45 mm (1.8 in) over 10 days. Additionally, October experiences a rise in humidity to 90%, compared to September’s average of 82%. For more details, you can check Kingston upon Thames weather in October.
September weather is generally milder compared to November, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 28°C (83°F) and an average of 15°C (59°F). In contrast, November experiences cooler conditions, with temperatures dropping to a minimum of -2°C (29°F), an average of 8°C (47°F), and a maximum of only 16°C (62°F). While both months see a considerable amount of precipitation, November receives a bit more, with 52 mm (2.0 in) over 11 days, compared to September's 45 mm (1.8 in) over 10 days. The humidity also increases in November, reaching 92% compared to September's 82%. For more detailed information, check Kingston upon Thames weather in November.
In September, Kingston upon Thames experiences a milder climate with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 28°C (83°F), making it a pleasant month for outdoor activities. The humidity sits at 82%, and the area sees about 45 mm (1.8 in) of precipitation over roughly 10 days. In contrast, December brings a significant drop in temperatures, with averages between -4°C (24°F) and 14°C (58°F). The month is wetter, with 84 mm (3.3 in) of precipitation spread across 13 days, and humidity rises to 92%. For more details on the December weather in Kingston upon Thames, you can check Kingston upon Thames weather in December.
As summer gently bows out, September in Kingston upon Thames brings a beautiful transition into autumn. The month showcases a delightful mix of warmer days and cooler nights, making it distinct from the earlier summer months. With an average temperature hovering around 15°C, residents experience a refreshing shift as mornings begin to show a crisper edge. Though September does see its fair share of rain, with about 10 days of precipitation averaging 45 mm, the overall mood remains cozy and inviting. The humidity remains relatively high at 82%, which can add a touch of mugginess to some days, reminding us that summer's warmth lingers just a little longer. For a deeper dive into the climatic nuances of Kingston upon Thames, explore Kingston upon Thames Climate.