Last updated: March 17, 2025
In September, Chatham, United Kingdom, experiences a blend of warmth and freshness, with maximum temperatures reaching 27°C (81°F), while the average sits comfortably at 15°C (60°F). As summer gives way to autumn, the cooler evenings can dip to a brisk 4°C (40°F). Rainfall is a defining feature of this month, with a total of 46 mm (1.8 in) spread over 10 days, contributing to a humidity level of 80%. This combination of mild temperatures and occasional showers makes September a transitional yet vibrant time in Chatham, perfect for enjoying the beauty of late summer and early autumn.
As summer gracefully transitions to autumn, September in Chatham presents a delightful shift in temperatures. With lows averaging around 4°C (40°F) and averages peaking at 15°C (60°F), the month feels refreshingly mild. The warmth remains, with maximum temperatures reaching 27°C (81°F), reminiscent of the tail end of summer. This blend of cool mornings and pleasantly warm afternoons invites outdoor exploration, making September an ideal time to enjoy the natural beauty of this charming town. As daylight begins to wane, Chatham's atmospheric shift is a gentle reminder of the cozy autumn days ahead.
In September, Chatham experiences moderate rainfall, with an average precipitation of 46 mm (1.8 in) spread over about 10 days. This marks a notable decrease from the wetter summer months, reflecting a transition into the autumn season. Comparatively, September's rainfall is lighter than the preceding months, such as August, which saw 72 mm (2.8 in). The consistent rainfall pattern, combined with a drop in both temperature and overall precipitation, signals the approach of autumn, hinting at the cool and crisp days ahead while still allowing for ample sunshine and mild weather typical of early fall.
In Chatham, United Kingdom, September brings a slight uptick in humidity, settling at 80%. This marks a subtle transition from the drier months of summer, where August recorded a comfortable 73%. As the autumn season approaches, the humidity levels begin to rise again, echoing the higher figures seen in the earlier months of the year, particularly the 91% in January and 89% in February. This trend suggests that while the days may be getting shorter and cooler, the air retains a notable moisture content, preparing Chatham for the wetter autumn months ahead.
As summer fades into autumn, September in Chatham, United Kingdom, welcomes a moderate UV Index of 5, indicating a need for sun protection, especially during peak hours. This slight decline from the intense 8 recorded in both July and June reflects the transition from the very high exposure of summer to a more tempered sunlight. The recommended burn time of 30 minutes suggests that while the sun is less fierce than in peak summer, it still holds enough strength to warrant caution. Overall, September marks a balanced point in the yearly UV chart, where outdoor enthusiasts can enjoy activities with a mindful approach to skin safety. For more detailed UV forecasts, visit Chatham UV Index.
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September in Chatham, United Kingdom, is a delightful transition from the vibrant summer months, boasting an impressive 312 hours of sunshine. As the sun begins to set on the warmer season, this month still holds onto a generous amount of sunlight, though it shows a clear decline from the peak of 414 hours in July. The gradual decrease in sunny hours from the optimistic heights of May, with 410 hours, signals the approach of autumn. Yet, September's bright days remain a cherished time for residents and visitors alike, who can enjoy the lingering warmth before the cooler months descend, evidenced by the notable dip to 247 hours in October. This trend reflects a comforting rhythm of seasonal change that Chatham experiences year after year, inviting all to savor the sun while it lasts.
As September arrives in Chatham, the likelihood of sunny weather remains relatively promising, with a 31% chance of sunshine. This marks a slight uptick from the summer months, where July and August average 40% and 29%, respectively. While September doesn’t reach the heights of April’s 48%, it does exceed the typical sunny probabilities seen during the drearier winter months, such as January's 20% and February's 24%. Overall, as summer bids farewell, the early autumn sun still graces Chatham with a respectable chance for those hoping to enjoy the outdoors.
As summer wanes, September in Chatham, United Kingdom, offers a gentle transition in daylight, providing about 12 hours of light. Following the peaks of 16 hours in the height of June and July, the ebbing days hint at the change of seasons. The month marks a gradual decline from 14 hours in August, as daylight begins to retreat, creating a softer, more subdued ambiance. This shift not only prepares residents for the cozy glow of autumn but also highlights the rhythmic cycle of nature's light, from the depths of winter's 7 hours in December to the refreshing brightness of spring's 11 hours in March.
As September rolls into Chatham, the breezes begin to soften, marking a transition into the autumn months. With an average wind speed of 3.5 m/s (8 mph), this month experiences some of the calmest winds of the year, reflecting a steady decline from the summer's slightly breezier days. This trend continues from the peak averages of late spring and summer, where wind speeds hovered around 4.1 m/s to 4.4 m/s. The progression from the refreshing gusts of July and August to the gentler September zephyrs signals a soothing shift in the coastal atmosphere, inviting residents and visitors alike to enjoy the mild, serene beauty of the autumn landscape. As the wind begins to pick up again in October, with an average of 4.6 m/s (10 mph), September presents a moment of tranquility, allowing nature to prepare for the seasonal changes ahead.
The weather in Chatham 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 Chatham and find detailed weather information for every month.
September and January exhibit stark differences in weather patterns. September boasts milder temperatures, ranging from a minimum of 4°C (40°F) to a comfortable average of 15°C (60°F) and a maximum of 27°C (81°F). This month is characterized by lower humidity at 80% and relatively less precipitation, totaling 46 mm over about 10 days. In contrast, January experiences much colder conditions, with temperatures dropping to a minimum of -4°C (25°F), an average of 5°C (41°F), and a maximum of only 14°C (58°F). The humidity rises to 91%, and precipitation increases slightly to 51 mm over the same number of days. For further details, you can visit Chatham weather in January.
September and February exhibit distinctly different weather patterns. September tends to offer milder temperatures, with averages around 15°C (60°F) and a maximum of 27°C (81°F), making it a pleasant month for outdoor activities. In contrast, February presents a chillier climate, with averages dropping to 6°C (44°F) and nighttime lows reaching -5°C (22°F). Precipitation levels are slightly higher in February, with 52 mm (2.0 in) recorded over 11 days compared to September’s 46 mm (1.8 in) over 10 days. Additionally, February experiences higher humidity at 89%, compared to 80% in September. For a more detailed look at February's conditions, visit Chatham weather in February.
September and March present contrasting weather patterns, reflecting the transition from summer to autumn and from winter to spring, respectively. September typically showcases a milder climate, with average temperatures around 15°C (60°F) and highs reaching 27°C (81°F), along with lower humidity levels at 80%. In contrast, March tends to be cooler, with temperatures averaging 8°C (46°F) and maximums peaking at 20°C (69°F), accompanied by higher humidity at 86%. Precipitation is slightly greater in March, with 50 mm (2.0 in) over 13 days compared to September’s 46 mm (1.8 in) over 10 days. For a deeper insight into March weather specifics, you can check Chatham weather in March.
In September, temperatures begin to moderate with a minimum of 4°C (40°F) and an average of 15°C (60°F), reaching a maximum of 27°C (81°F). The month sees a total precipitation of 46 mm (1.8 in) over approximately 10 days, coupled with a humidity level of 80%. In contrast, April experiences cooler conditions, with minimum temperatures dropping to -1°C (31°F) and an average of 10°C (49°F), while maximums reach 24°C (76°F). With a slightly lower total precipitation of 30 mm (1.2 in) across 8 days, April boasts a humidity level of 85%. For more information, you can check Chatham weather in April.
September and May present distinct weather characteristics, making each month unique. In September, temperatures range from a low of 4°C (40°F) to a high of 27°C (81°F), with an average of 15°C (60°F). This month experiences 46 mm (1.8 in) of precipitation over approximately 10 days, coupled with a humidity level of 80%. In contrast, May offers slightly cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 25°C (78°F), averaging 13°C (55°F). Though May has more precipitation at 64 mm (2.5 in) over 11 days, it maintains a similar humidity level at 82%. For more detailed information, you can explore Chatham weather in May.
September and June display distinct weather patterns, reflecting the transition from summer to autumn. In September, the temperatures range from a minimum of 4°C (40°F) to a maximum of 27°C (81°F), with an average temperature of 15°C (60°F). This month experiences a moderate amount of precipitation at 46 mm (1.8 in) over about 10 days, contributing to a humidity level of 80%. Conversely, June generally offers warmer conditions, with temperatures ranging from 7°C (46°F) to 30°C (87°F) and an average of 17°C (62°F). It tends to be wetter, with 70 mm (2.8 in) of rainfall across 9 days and a similar humidity level of 81%. For a more detailed look at June weather, you can visit Chatham weather in June.
When comparing the weather in September and July, notable differences emerge. September typically showcases a wider temperature range, with minimums dipping to 4°C (40°F) and maximums reaching 27°C (81°F), resulting in an average of 15°C (60°F). In contrast, July experiences warmer conditions, with minimums around 10°C (50°F) and maximums soaring to 35°C (95°F), averaging 18°C (66°F). Rainfall is also a factor; September receives about 46 mm (1.8 in) of precipitation over 10 days, while July averages slightly more at 59 mm (2.3 in) over 11 days. Additionally, September's humidity is slightly higher at 80%, compared to July's 76%. For more details, you can check Chatham weather in July.
In comparing the weather between August and September, it is evident that September experiences cooler temperatures overall. The minimum temperature in September drops to 4°C (40°F), while August maintains a higher minimum of 9°C (49°F). Average temperatures in September hover around 15°C (60°F), compared to August's warmer average of 18°C (65°F). Additionally, September sees a maximum temperature of 27°C (81°F), significantly lower than August's peak of 34°C (93°F). Rainfall also decreases in September, with 46 mm (1.8 in) over 10 days, contrasted with August's 72 mm (2.8 in) spread over 11 days. Despite this, September has a higher humidity level at 80%, compared to August's 73%. For more detailed weather information, you can check Chatham weather in August.
September and October display notable changes in weather patterns. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 27°C (81°F), with an average of 15°C (60°F) and relatively stable conditions. The month experiences 46 mm (1.8 in) of precipitation over about 10 days, accompanied by a humidity level of 80%. In contrast, October sees a slight drop in temperatures, with a minimum of 2°C (35°F), an average of 12°C (54°F), and a maximum of 23°C (74°F). Precipitation increases significantly to 78 mm (3.1 in) over 13 days, and humidity also rises to 89%. These changes suggest a transition into cooler and wetter conditions, making October feel distinctly more autumnal. For more specific details, you can check Chatham weather in October.
September weather shows a more moderate range, with temperatures fluctuating between a minimum of 4°C (40°F) and a maximum of 27°C (81°F), along with an average of 15°C (60°F). The month experiences a total of 46 mm (1.8 in) of precipitation over 10 days, accompanied by a relatively lower humidity level of 80%. In contrast, November brings cooler temperatures, with lows dipping to -1°C (31°F) and an average temperature of 8°C (47°F), peaking at 17°C (63°F). This month also sees the same amount of precipitation (46 mm) over the same number of days, but the humidity levels are higher, reaching 92%. For more details, check out Chatham weather in November.
September and December present stark contrasts in weather conditions. In September, temperatures range from a mild 4°C (40°F) at night to a comfortable maximum of 27°C (81°F) during the day, with an average of 15°C (60°F). The month sees a moderate amount of rainfall, totaling 46 mm (1.8 in) over about 10 days, and humidity levels hover around 80%. In contrast, December temperatures drop significantly, with minimums reaching -2°C (29°F) and an average of only 7°C (44°F). This colder month experiences more precipitation, with 85 mm (3.3 in) spread across 13 days and increased humidity at 92%. For more detailed information, check out Chatham weather in December.
As September unfolds in Chatham, the weather showcases a delightful transition from the warmth of summer to the crispness of autumn. With maximum temperatures reaching an enjoyable 27°C, the month brings a pleasant average of 15°C, providing just the right balance for outdoor activities. However, prepare for occasional rain, with 10 days seeing light precipitation that totals around 46 mm. The humidity levels linger around 80%, adding a touch of mugginess that is characteristic of late summer. This unique blend makes September a month where you can still soak up the sun while also embracing the cooling embrace of fall. To learn more about how September fits into the broader weather patterns, visit Chatham Climate.