Last updated: March 17, 2025
September in Arundel, United Kingdom, offers a delightful blend of mild temperatures and refreshing rain. With a maximum temperature reaching 23°C (73°F) and an average of 16°C (62°F), the month provides a comfortable climate for outdoor activities. However, prepare for occasional showers, as approximately 61 mm (2.4 in) of rain falls over about 10 days, keeping the landscape lush and vibrant. The humidity levels hover around 82%, adding a touch of freshness to the air. Whether enjoying a stroll along the river or exploring the historic sites, September in Arundel beautifully captures the essence of early autumn in the UK.
In September, Arundel experiences a lovely transition into autumn, with temperatures generally ranging from a comfortable 10°C (50°F) at night to a pleasant 23°C (73°F) during the day. This month showcases an average temperature of 16°C (62°F), marking a gradual cooling from the warmth of summer. As the days shorten, the warmth starts to give way to the crispness of fall, yet many enjoy the lingering mildness that invites outdoor activities. Overall, September acts as a gentle reminder of summer's end while hinting at the refreshing changes of the upcoming season.
In September, Arundel experiences a notable transition into autumn as it receives an average of 61 mm (2.4 in) of precipitation over 10 days. This marks a slight decrease from the summer's heavier rainfall, with August boasting 77 mm (3.0 in). However, September maintains a balance, as the weather is still characterized by unpredictable showers and cooler temperatures. The precipitation pattern suggests a gradual intensification leading into the wetter months ahead, notably October, which historically sees a significant uptick with 126 mm (5.0 in) expected. This shift serves as a reminder of the changing seasons, with September acting as a bridge between summer's lingering warmth and autumn's inevitable chill.
In September, Arundel, United Kingdom, experiences a noticeable shift in humidity, with levels averaging 82%. This marks a slight increase from the summer months, where humidity dipped to 71% in July and 76% in August. As the autumn season begins to take hold, the humidity gradually rises, reflecting a trend seen in previous years where September's levels are comfortably nestled between the warmer summer and the more humid conditions of October, which averages 90%. This transition signals the onset of cooler, wetter days ahead, inviting the lush vibrancy of autumn while still retaining a hint of the summer's warmth.
As September rolls into Arundel, the UV Index stands at 6, indicating a high exposure category with a burn time of 25 minutes. This marks a slight decline from the very high levels experienced in the summer months, where June and July maintained an index of 8. Despite this reduction, it's essential to remain mindful of sun protection as the days begin to shorten. The trend of a decreasing UV Index in the fall suggests that while the risk is lower than in mid-summer, caution is still warranted. As you enjoy the early autumn sun, ensure you stay protected. For more detailed insights, explore the Arundel UV Index.
UV Risk Categories
September in Arundel, United Kingdom, shines with an impressive 324 hours of sunshine, which marks a delightful transition into autumn. As summer fades, this month radiates with nearly 80% of the sunny hours enjoyed during the peak of July, when daylight reaches its zenith with 424 hours. Despite a slight dip compared to August's 388 hours, September remains one of the sunniest months of the year, showcasing the lingering warmth of early fall. The gradual decrease in sunlight from the vibrant highs of summer to the cooler months ahead is a reminder of nature's beautiful cycles, setting the stage for the cozy months of October and beyond.
In September, the likelihood of sunny weather in Arundel, United Kingdom, settles at 37%, a figure that mirrors the summer's end yet showcases a notable dip from the sunnier days of April with its 59% chance. As the seasons transition, September's sun probability holds steady compared to August, reflecting a gradual shift towards the cooler autumn months ahead. While the days might be shorter and the warmth fading, there's still a pleasing likelihood of enjoying bright intervals amidst the onset of fall. Visitors and locals alike can take heart in this enduring chance for sunshine before the clouds of October roll in, marking a return to the lower averages seen throughout the winter months.
As summer fades, September in Arundel, United Kingdom, greets residents with 12 hours of daylight, marking a gentle transition toward autumn. Following a peak of 16 hours in June, the daylight begins to wane, reflecting the shifting seasons. With longer days in the spring and summer months—ranging from 8 hours in January to a vibrant 15 hours in May—September offers a balanced blend of sunlight, allowing for continued outdoor enjoyment before the days shorten to 10 hours in October and eventually 8 hours in the depths of winter. This gradual decline not only beautifies the landscape but also invites a sense of reflection, as nature prepares for the cozy embrace of autumn.
As summer transitions into autumn, September in Arundel brings a gentle shift in wind patterns, with an average wind speed of 5.5 m/s (12 mph). This marks a decrease from the breezier days of August, which boasted winds up to 6.2 m/s (14 mph). The calming winds of September reflect a broader trend throughout the year, as the wind speeds fluctuate, peaking in the earlier months of January and February at around 7.7 m/s (17 mph) and 8.0 m/s (18 mph), before tapering down into the milder summer months. As October approaches, winds begin to pick up again, hinting at the more robust gusts of fall and winter ahead. This serene month serves as a picturesque reminder of nature's rhythm, where each breeze carries with it the whisper of seasonal change.
The weather in Arundel 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 Arundel and find detailed weather information for every month.
In September, the weather is generally milder, with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 23°C (73°F). The month sees about 61 mm (2.4 in) of rainfall across approximately 10 days, coupled with a humidity level of 82%. In contrast, January experiences much cooler temperatures, averaging from a low of 1°C (35°F) to a high of 13°C (55°F). Precipitation increases slightly to 71 mm (2.8 in) over 12 days, and humidity rises to 91%. For more details on January weather, you can check Arundel weather in January.
September and February present contrasting weather conditions. In September, temperatures range from a mild 10°C (50°F) at night to a comfortable 23°C (73°F) during the day, with an average of 16°C (62°F). While it experiences some rainfall, with 61 mm (2.4 in) over 10 days, the humidity is relatively lower at 82%. In stark contrast, February is characterized by colder temperatures, with lows plunging to -1°C (30°F) and only reaching a high of 12°C (54°F), resulting in an average of just 7°C (45°F). Precipitation levels increase slightly to 76 mm (3.0 in) over 13 days, accompanied by higher humidity at 89%. For more details on February's weather, check out Arundel weather in February.
September and March present contrasting weather conditions. In September, temperatures are milder, ranging from a minimum of 10°C (50°F) to a maximum of 23°C (73°F), with an average of 16°C (62°F). The month sees about 61 mm (2.4 in) of precipitation over approximately 10 days, along with a humidity level of 82%. In contrast, March experiences cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 13°C (55°F), averaging only 8°C (47°F). Precipitation slightly increases to 67 mm (2.6 in) over about 14 days, accompanied by a higher humidity of 86%. For a detailed look at what to expect, check out Arundel weather in March.
Comparing the weather in September and April reveals distinct seasonal differences. In September, temperatures are generally warmer, with a minimum of 10°C (50°F) and an average of 16°C (62°F), reaching a maximum of 23°C (73°F). This month's precipitation is also higher, averaging 61 mm (2.4 in) over about 10 days, while humidity hovers around 82%.
In contrast, April sees much cooler temperatures, with a minimum of 2°C (36°F) and an average of 9°C (49°F), peaking at a maximum of 15°C (60°F). The rainfall during April is considerably less, with only 29 mm (1.2 in) over 6 days, and humidity is slightly higher at 85%. For more detailed information on April's weather, you can check Arundel weather in April.
When comparing the weather in September and May, September generally features warmer temperatures, with a minimum of 10°C (50°F) and a maximum of 23°C (73°F), compared to May's cooler range of 6°C (42°F) to 19°C (67°F). Additionally, September experiences slightly more precipitation, averaging 61 mm (2.4 in) over around 10 days, while May sees 47 mm (1.9 in) over about 9 days. The humidity levels are relatively similar, with September at 82% and May at 79%. For more specifics on May weather, you can check Arundel weather in May.
September features a slightly warmer climate compared to June, with average temperatures reaching 16°C (62°F) and a maximum of 23°C (73°F), while June has an average of 15°C (60°F) and a high of 21°C (70°F). Both months experience similar levels of humidity, with September at 82% and June at 80%. In terms of precipitation, September has slightly less with 61 mm (2.4 in) over 10 days, compared to June's 66 mm (2.6 in) over 9 days. For more detailed information on weather specifics during this month, you can visit Arundel weather in June.
In comparing the weather of September and July, we observe that September features slightly cooler temperatures, with average highs reaching 23°C (73°F) but lows dipping to 10°C (50°F), while July maintains a warmer average with minimum temperatures at 13°C (56°F) and the same maximum of 23°C (74°F). Additionally, September experiences a bit more precipitation with 61 mm (2.4 in) over 10 days, compared to July’s 54 mm (2.1 in) across the same number of days. Humidity levels are also higher in September at 82%, indicating a more muggy atmosphere compared to the 71% in July. For a detailed look at July weather, you can refer to Arundel weather in July.
In comparing the weather of September and August, September tends to be slightly cooler with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 23°C (73°F), compared to August's temperatures which range from a minimum of 12°C (54°F) to a maximum of 24°C (75°F). Additionally, September experiences an average precipitation of 61 mm (2.4 in) over about 10 days, while August sees higher precipitation at 77 mm (3.0 in) across 13 days. Notably, September is also more humid, with an average humidity of 82% compared to August's 76%. For more specific information on August weather in Arundel, you can visit Arundel weather in August.
September and October present a notable shift in weather patterns. In September, temperatures range from a minimum of 10°C (50°F) to a comfortable maximum of 23°C (73°F), with an average of 16°C (62°F). The precipitation level is moderate at 61 mm (2.4 in) over about 10 days, and the humidity sits at a relatively high 82%. In contrast, October brings cooler temperatures with a minimum of 6°C (43°F) and a maximum of 20°C (68°F), averaging 14°C (57°F). Rainfall increases significantly to 126 mm (5.0 in), spread over 15 days, and humidity rises to 90%, making the atmosphere feel even more damp. For more specific insights on October weather, check out Arundel weather in October.
September generally offers milder temperatures, with an average of 16°C (62°F) and highs reaching up to 23°C (73°F). The month sees about 61 mm (2.4 in) of precipitation, spread over roughly 10 days, and experiences a humidity level of 82%. In contrast, November showcases noticeably cooler conditions, with average temperatures dropping to 11°C (51°F) and maximums only reaching 16°C (61°F). Precipitation increases to 102 mm (4.0 in) over approximately 15 days, accompanied by higher humidity at 92%. For more detailed information, you can visit Arundel weather in November.
September typically enjoys milder temperatures with a minimum of 10°C (50°F) and an average of 16°C (62°F), reaching a maximum of 23°C (73°F). The month experiences about 61 mm (2.4 in) of precipitation over approximately 10 days, accompanied by moderate humidity at 82%. In contrast, December brings considerably colder weather, with temperatures dropping to a minimum of 2°C (35°F) and an average of just 9°C (48°F), peaking at 13°C (56°F). This month sees higher precipitation at 131 mm (5.1 in) over 17 days, along with increased humidity at 92%. For more details on December weather, you can check Arundel weather in December.
As September unfolds in Arundel, the weather transitions into a more temperate rhythm, offering a refreshing change from the summer heat. This month typically experiences milder temperatures, providing a comfortable atmosphere for outdoor activities amidst the beautiful autumn backdrop. Although rainfall becomes a bit more frequent with an increase in humidity, the overall ambiance remains inviting, making it an ideal time to explore the charming surroundings. For a more detailed outlook on what to expect throughout the year, visit Arundel Climate.