Last updated: March 17, 2025
In Chepstow, United Kingdom, September showcases a dynamic blend of temperatures, ranging from a maximum of 29°C (84°F) during sunlit days to an average of 14°C (58°F), providing a mild transition into autumn. While temperatures can dip to a brisk 3°C (38°F) at night, the month's weather is accentuated by a moderate precipitation total of 54 mm (2.1 in) over 8 days. With humidity levels averaging a comfortable 79%, September in Chepstow is a month of fluctuating conditions, perfect for those who appreciate the charm of early fall.
In September, Chepstow experiences a gentle transition from summer to autumn, where temperatures start to cool but still retain a warm touch. The minimum temperature of 3°C (38°F) hints at the crispness of early fall, while the average reaches 14°C (58°F), providing a comfortable climate for outdoor activities. The peak temperature of 29°C (84°F) showcases those lingering warm days, making it a pleasant month for enjoying the last vestiges of summer. As the month progresses, the shift in temperatures signals a gradual approach towards the chillier months ahead, allowing both locals and visitors to relish the beauty of the changing seasons.
In September, Chepstow experiences a notable shift in its weather pattern, with precipitation totaling 54 mm (2.1 in) over an average of just 8 days. This marks a decrease compared to the wetter summer months, where rainfall peaked during June and August. The drop in both rainfall volume and frequency signals the onset of autumn, as the region transitions towards the much wetter October, which sees a dramatic increase in precipitation to 98 mm (3.9 in) over 13 days. Despite the lighter September showers, the lingering moisture serves as a reminder of the typically changeable British climate, hinting at the wetter days ahead.
September in Chepstow, United Kingdom, brings a subtle shift in humidity levels, settling at 79%. This marks a transition from the drier summer months, where July and August saw lower humidity rates of 70% and 73%, respectively. As the year progresses into autumn, the rise in humidity is part of an overall trend where autumn months typically showcase heightened moisture levels, culminating in October and November's return to the higher spectrum, hovering around 89% and 90%. This gradual increase creates a cozy, albeit brisk atmosphere, signaling the approach of cooler weather while still retaining a hint of the lingering warmth from summer.
As September arrives in Chepstow, the UV Index settles at 6, indicating a high exposure level, with a burn time of just 25 minutes. This slight dip from the summer's peak reflects the changing seasons, yet it’s still crucial to exercise caution under the sun. With the months prior showcasing a UV Index as high as 8, the transition into autumn reminds us that sun safety remains important even as temperatures begin to cool. Residents and visitors alike should be mindful of UV exposure to ensure a safe outdoor experience as the days grow shorter. For more detailed insights on UV trends, check out Chepstow UV Index.
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As we transition into September in Chepstow, UK, the lingering warmth of summer still casts a golden glow, bringing an impressive 281 hours of sunshine. This marks a gentle decline from the sun-drenched peak of July, which boasted 397 hours, highlighting the region's vibrant summer months. Unlike the brisk drop seen in October, which can expect only 229 hours, September retains a comforting light, bridging the gap between the sun-kissed days of summer and the approaching chill of autumn. This gradual shift not only invites outdoor enthusiasts to savor the last of the fine weather but also sets the stage for the upcoming seasonal changes, with daylight dwindling as we head toward winter's embrace.
In Chepstow, the likelihood of sunny weather sees a notable shift as the year progresses, with September showcasing a solid 27% chance of sunshine. While this places the month on par with both August and July, it's a slight dip compared to the vibrant 51% experienced in April. As autumn approaches, the sunshine probability becomes increasingly unpredictable, mirroring the 21% chance noted in February and October. Overall, September serves as a transitional month where the lingering warmth of summer begins to fade, yet there's still a promising window for enjoying those cherished sunny days before the chill of autumn sets in.
In Chepstow, United Kingdom, the daylight duration experiences a notable seasonal ebb and flow throughout the year. Starting with a mere 8 hours in January, the daylight gradually increases, reaching a peak of 16 hours in both June and July, basking the town in long, sunlit days. As summer transitions to autumn, the light begins to wane, dropping to 14 hours in August and further down to 12 hours in September. This trend indicates a gentle yet steady decline into the darker months, as October brings only 10 hours of daylight, ultimately leading back to the shorter days of winter, characterized by just 8 hours in November and 7 hours in December. This rhythm of light not only marks the changing seasons but also sets the stage for the picturesque landscape of Chepstow throughout the year.
As September arrives in Chepstow, the wind begins to take on a gentle character, with an average wind speed of 3.1 m/s (7 mph), making it one of the calmer months of the year. This marks a continuation of the lighter winds experienced during the summer, particularly in July, which recorded the year's lowest average at 2.9 m/s (6 mph). However, as autumn approaches, a subtle uptick in wind speeds can be observed in October, where the average climbs back to 4.3 m/s (10 mph). Overall, September serves as a transitional period, bridging the serene breezes of summer with the invigorating gusts that herald the change of seasons, inviting residents and visitors alike to enjoy the crisp air and shifting landscapes.
The weather in Chepstow 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 Chepstow and find detailed weather information for every month.
September and January present contrasting weather patterns. In September, temperatures range from a pleasant minimum of 3°C (38°F) to a warm maximum of 29°C (84°F), with an average of 14°C (58°F). The month experiences about 54 mm (2.1 in) of precipitation over 8 days, and humidity hovers around 79%. In contrast, January brings colder conditions, with temperatures dipping as low as -4°C (25°F) and reaching a maximum of only 14°C (57°F), averaging around 5°C (41°F). The precipitation remains similar at 54 mm (2.1 in), but it occurs over 10 days, and humidity increases to 88%. For those interested in detailed January weather trends, check out Chepstow weather in January.
In September, temperatures range from a pleasant 3°C (38°F) at night to a warm average of 14°C (58°F) and peak at 29°C (84°F) during the day. With an average precipitation of 54 mm (2.1 in) over eight days, the humidity sits at a comfortable 79%. In contrast, February brings colder weather, with nighttime lows plunging to -5°C (23°F) and an average temperature of around 6°C (43°F), while daytime highs reach only 18°C (64°F). This month experiences higher rainfall, totaling 67 mm (2.6 in) across 13 days, and a higher humidity level of 88%. For more details on the February climate, check out Chepstow weather in February.
When comparing September and March weather, it's clear that both months present distinct seasonal characteristics. In September, temperatures range from a low of 3°C (38°F) to a pleasant high of 29°C (84°F), with an average of 14°C (58°F). Precipitation is moderate at 54 mm (2.1 in) over about 8 days, and the humidity sits at 79%. In contrast, March experiences cooler temperatures, with lows dipping to -6°C (21°F) and an average temperature of 7°C (45°F), peaking at 21°C (70°F). This month is also wetter, accumulating 74 mm (2.9 in) of rainfall over 14 days, and has a slightly higher humidity level of 86%. The shift from the warmth of late summer in September to the chill of early spring in March highlights the varying weather patterns typical of these transitional months. For more details on March weather specifically, you can refer to Chepstow weather in March.
September and April present noticeably 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 14°C (58°F). This month typically enjoys slightly lower humidity at 79% and experiences 54 mm (2.1 in) of precipitation over eight days. In contrast, April is cooler overall, with temperatures ranging from a minimum of -3°C (28°F) to a maximum of 23°C (74°F) and an average of 9°C (49°F). The humidity is a bit higher at 84%, and precipitation is similar, with 52 mm (2.0 in) over nine days. For more detailed information, you can check Chepstow weather in April.
When comparing the weather between September and May, September tends to be warmer, with average temperatures ranging from a chilly 3°C (38°F) at night to a pleasant high of 29°C (84°F) during the day. In contrast, May experiences cooler temperatures, with minimums around 0°C (33°F) and maximums reaching 26°C (80°F). Both months see significant rainfall, but May receives more precipitation (73 mm or 2.9 in) over a greater number of days (12) compared to September's 54 mm (2.1 in) over 8 days. Humidity levels are relatively similar, sitting at around 79% in September and slightly higher at 80% in May. For more detailed information on May weather, you can visit Chepstow weather in May.
Comparing the weather between September and June reveals some notable differences. September tends to have a wider range of temperatures, with a minimum of 3°C (38°F) and a maximum of 29°C (84°F), leading to an average of 14°C (58°F). In contrast, June starts warmer, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 30°C (87°F), resulting in a slightly higher average of 16°C (61°F). Additionally, September experiences less precipitation with 54 mm (2.1 in) over 8 days, whereas June records 75 mm (3.0 in) across 12 days, indicating it is generally wetter. Both months have similar humidity levels, with September at 79% and June at 80%. For more detailed information, refer to Chepstow weather in June.
When comparing the weather in September to that of July, it’s evident that July tends to be warmer overall, with average temperatures reaching 18°C (64°F) compared to September's 14°C (58°F). While July boasts slightly cooler minimum temperatures at 7°C (46°F), the maximum in both months is quite similar, with July reaching up to 30°C (87°F) and September maxing out at 29°C (84°F). Additionally, September experiences a higher average humidity of 79%, compared to July’s 70%, which can make the air feel heavier, despite July being the more precipitation-heavy month, receiving 63 mm (2.5 in) over 10 days against September's 54 mm (2.1 in) over 8 days. For a detailed look at July’s conditions, you can visit Chepstow weather in July.
In comparing the weather of September and August, September tends to be cooler, with minimum temperatures reaching 3°C (38°F) compared to August's milder 7°C (45°F). The average temperature in September is also lower at 14°C (58°F), while August boasts a higher average of 17°C (62°F). Additionally, September experiences fewer warm days, with a maximum temperature of 29°C (84°F), in contrast to August's peak of 32°C (89°F). Precipitation in September is less intense but occurs over fewer days, with 54 mm (2.1 in) of rain over 8 days compared to August, which sees 75 mm (2.9 in) over 11 days. Interestingly, September has a higher humidity level of 79%, while August is slightly drier at 73%. For a detailed look at August weather, visit Chepstow weather in August.
September and October present a notable transition in weather conditions. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 29°C (84°F), with an average of 14°C (58°F). The month experiences a total precipitation of 54 mm (2.1 in) over 8 days, accompanied by relatively moderate humidity at 79%. In contrast, October sees cooler temperatures, with a minimum of -1°C (31°F), an average of 11°C (53°F), and a maximum of 23°C (73°F). This month is wetter, recording 98 mm (3.9 in) of precipitation over 13 days, and the humidity rises to 89%. For more detailed insights, check out Chepstow weather in October.
September and November present noticeably different weather conditions. In September, temperatures range from a mild 3°C (38°F) at their lowest to a warm 29°C (84°F) at their peak, with an average of 14°C (58°F). The month receives around 54 mm (2.1 in) of precipitation over approximately 8 days, accompanied by a humidity level of 79%. In contrast, November experiences much cooler temperatures, with a minimum of -2°C (28°F) and a maximum of 17°C (62°F), averaging 8°C (47°F). Precipitation increases to 72 mm (2.8 in), spread across 13 days, and humidity rises to 90%. For more details, you can check out Chepstow weather in November.
September and December present contrasting weather patterns. In September, temperatures range from a mild 3°C (38°F) to a warm 29°C (84°F), with an average of 14°C (58°F). The month sees a moderate amount of precipitation at 54 mm (2.1 in) over about 8 days, accompanied by a humidity level of 79%. In contrast, December experiences much cooler temperatures, with a minimum of -8°C (17°F) and a maximum of 14°C (57°F), averaging around 7°C (44°F). Precipitation increases to 93 mm (3.7 in) spread over 15 days, and humidity rises slightly to 89%. For more detailed information, you can check Chepstow weather in December.
In September, Chepstow bids farewell to the summer warmth, transitioning to a cooler climate that invites the cozy embrace of autumn. While temperatures can still peak at a delightful 29°C, the average settles down significantly, offering a refreshing change from the sweltering heat of the peak summer months. With an increase in precipitation—a total of 54 mm over about 8 days—this month marks the beginning of the wetter season, contrasting sharply with the dry spells of July and August. Coupled with a humidity level that hovers around 79%, September becomes a time of lush greenery and rich colors as nature prepares for the cooler months ahead. For more detailed insights into what to expect year-round, explore the Chepstow Climate.