Last updated: March 17, 2025
September in Sunderland, United Kingdom, showcases a dynamic range of weather that marks the transition into autumn. With maximum temperatures reaching 27°C (80°F) and an average of 14°C (57°F), the month offers a mix of warm and cooler days. Temperatures can dip to a chilly 4°C (40°F) at night, reminding residents of the season's change. Rainfall is common, with 61 mm (2.4 in) accumulated over an average of 12 days, contributing to a humidity level of 87% that might feel quite muggy. This blend of warm days and frequent showers creates an inviting yet unpredictable climate, perfect for experiencing the natural beauty and charm of Sunderland in early autumn.
As September rolls into Sunderland, the temperatures begin to paint a picture of early autumn warmth. With a minimum of 4°C (40°F) and an average temperature of 14°C (57°F), the days feel pleasantly mild, while the highs can reach up to 27°C (80°F), echoing the lingering warmth of summer. This month marks a notable shift from the height of summer, with cooler evenings hinting at the approaching fall. The gradual decline in temperature signifies a transition, making September an ideal time for outdoor activities amidst the changing leaves and softer skies, all while enjoying the last vestiges of warmth before winter settles in.
September in Sunderland marks a noticeable transition in weather patterns, with precipitation reaching 61 mm (2.4 in) over approximately 12 days. This amount reflects a slight decrease compared to the wetter months of August and June, which recorded 82 mm (3.2 in) and 75 mm (2.9 in), respectively. However, it remains relatively consistent with the spring months, showcasing the region's characteristic blend of rain throughout the year. As summer fades, the rainfall trend suggests a gradual increase as autumn approaches, setting the scene for the cooler, wetter months ahead. The frequent drizzles characteristic of this time of year contribute to Sunderland's lush surroundings, painting a vivid picture of a landscape transitioning into fall.
In September, Sunderland experiences a notable uptick in humidity, reaching 87%. This rise comes after a gradual decline through the summer months, where humidity dipped to its lowest at 82% in August. As autumn approaches, humidity levels rebound, mirroring the trend observed earlier in the year when January and October boast similar high levels of around 89%. This seasonal fluctuation highlights Sunderland's characteristic damp climate, with September serving as a transitional month that bridges the drier summer and the wetter autumn months, setting the stage for a cozy, albeit humid, fall.
As the summer months fade, September in Sunderland brings a slightly reduced UV Index, recorded at 5, which falls under the moderate exposure category. This indicates a shift from the high UV levels experienced in the peak summer, where values reached a high of 8 in both June and July. With a burn time of approximately 30 minutes, sun protection is still advisable, especially during midday hours. This trend suggests that while the sunlight's intensity is decreasing, it's wise to remain vigilant about UV exposure as autumn approaches. For more insights, check out the detailed Sunderland UV Index.
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In September, Sunderland basks in a delightful 311 hours of sunshine, marking the tail end of the summer warmth. This month continues the trend of upper hours enjoyed throughout the sunnier summer months, peaking in July with an impressive 414 hours. As autumn approaches, the days gradually shorten, yet September manages to hold onto a respectable amount of sunshine, contrasting sharply with the darker, cloudier days of October and November. This gradual decline from the summer highs offers a bittersweet transition into fall, showcasing the city's capacity to savor lingering sunshine before the cooler months settle in. With autumn colors emerging, September’s radiant days provide a perfect backdrop for outdoor exploration and appreciation of Sunderland's scenic beauty.
In Sunderland, September typically sees a 24% chance of sunny weather, mirroring the somewhat lackluster outlook from earlier summer months like August and June. As autumn approaches, the likelihood of sunshine decreases slightly compared to springtime highs in April, which boasts a robust 50% chance. Overall, September is part of a gradual shift towards the shorter, cloudier days of fall, reflecting the natural trend of decreasing sunlight as the year progresses. While it's not the sunniest month, Sunderland's September offers a gentle transition from summer, inviting occasional glimpses of brightness amidst the encroaching clouds.
As September arrives in Sunderland, the days begin to shorten, offering about 12 hours of daylight—a gentle decline from the summer's peak. This month marks the transition from the bright, expansive days of June and July, which boast 17 and 16 hours of daylight respectively, to the more subdued light of autumn. As the leaves start to change, the sunlight gradually retreats, hinting at the cozy indoor activities that autumn brings. Compared to August’s 14 hours of daylight, September’s decrease is a subtle reminder of nature’s rhythms, as the city prepares to embrace the charm of shorter days and the approaching chill of October.
As September rolls in, Sunderland experiences a gentle shift in its winds, with an average speed of 3.8 m/s (8 mph), mirroring the calm breezes of the summer months. This slight increase from the low wind speeds of July and August suggests a transition towards cooler weather, yet still retains a pleasant atmosphere. Historically, September’s winds stand at the same level as those in April and June, indicating a consistent, mild character during this early autumn month. As the season progresses, residents can expect the winds to pick up in October and November, signaling the onset of more dynamic weather patterns. In essence, September serves as a brief interlude, boasting a balance of tranquility and anticipation for the breezier days ahead.
The weather in Sunderland 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 Sunderland and find detailed weather information for every month.
September and January present contrasting weather patterns, highlighting the transition from late summer to mid-winter. In September, temperatures range from a mild minimum of 4°C (40°F) to a pleasant maximum of 27°C (80°F), with an average of 14°C (57°F). The month sees approximately 61 mm (2.4 in) of precipitation over about 12 days and maintains a high humidity level of 87%. In stark contrast, January experiences much cooler temperatures, with a minimum of -3°C (27°F), an average of 5°C (41°F), and a maximum of only 14°C (58°F). The precipitation is slightly less at 49 mm (1.9 in) over 9 days, while humidity remains high at 89%. For more details on January weather, visit Sunderland weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a comfortable minimum of 4°C (40°F) to a pleasant maximum of 27°C (80°F), with an average of 14°C (57°F). This month experiences around 61 mm (2.4 in) of precipitation over approximately 12 days, maintaining a high humidity level of 87%. In contrast, February is much colder, with temperatures dipping to a minimum of -7°C (19°F) and an average of only 6°C (42°F), peaking at a maximum of 16°C (62°F). This month sees slightly higher precipitation at 74 mm (2.9 in) over about 15 days, with humidity also at 87%. For a deeper look at February's weather specifics, check out Sunderland weather in February.
In comparing the weather of September and March, we see notable differences in temperature and overall climate. September features milder temperatures, with a minimum of 4°C (40°F) and an average of 14°C (57°F), reaching a maximum of 27°C (80°F), making it feel much warmer than March, where temperatures start at a minimum of -4°C (25°F) and peak at 18°C (64°F) on average. Both months experience similar levels of precipitation, around 62 mm (2.4 inches) over 12 days, but the humidity slightly varies, with September at 87% and March at 85%. For a more detailed look at March weather, you can visit Sunderland weather in March.
September and April showcase distinct differences in weather patterns. In September, temperatures range from a mild 4°C (40°F) at night to a warm 27°C (80°F) during the day, making it generally warmer than April, which experiences a minimum temperature of -2°C (29°F) and a maximum of 23°C (73°F). Additionally, September has higher average temperatures at 14°C (57°F) compared to April's average of 8°C (47°F). Precipitation is also more pronounced in September with 61 mm (2.4 in) over 12 days, while April sees 33 mm (1.3 in) spread over just 7 days, resulting in a slightly drier month. Humidity levels are relatively close, with September at 87% and April at 84%. For more detailed weather insights, you can check Sunderland weather in April.
September and May weather presents some interesting contrasts. September typically enjoys warmer temperatures, with average highs reaching 27°C (80°F), while May’s average maximum is slightly cooler at 24°C (76°F). However, May starts off cooler with a lower minimum of 1°C (34°F) compared to September’s minimum of 4°C (40°F). Precipitation levels are also noteworthy; September experiences more rainfall at 61 mm (2.4 in) over 12 days, while May sees 49 mm (1.9 in) spread over 13 days. Humidity is relatively high in both months, with September at 87% compared to May’s 83%. For a closer look at the specifics, check out Sunderland weather in May.
When comparing the weather in September and June, both months experience similar maximum temperatures, reaching around 27°C (81°F). However, September sees a slightly wider range of temperatures, with a minimum of 4°C (40°F) compared to June's minimum of 6°C (43°F). In terms of precipitation, September receives about 61 mm (2.4 in) over 12 days, while June has a higher rainfall total of 75 mm (2.9 in) across 10 days. Humidity levels are also comparable, with September at 87% and June slightly lower at 85%. For a more detailed look at June's weather, check out Sunderland weather in June.
In comparing the weather of September and July, we can see a notable shift in temperatures and precipitation patterns. September typically experiences lower minimum temperatures, ranging from 4°C (40°F) compared to July's 8°C (46°F), giving the early fall month a cooler feel overall. The average temperatures in September are also cooler at 14°C (57°F) versus July's 17°C (62°F), although both months can reach a maximum of around 27-29°C (80-85°F). Precipitation is slightly higher in July with 73 mm (2.9 in) over 13 days, while September sees 61 mm (2.4 in) over 12 days, indicating a somewhat drier end to summer. Humidity levels are also comparable, with September at 87% and July at 83%, making both months feel humid but still distinct in their seasonal transitions. For more detailed insights, you can check Sunderland weather in July.
In September, temperatures show a noticeable drop compared to August, with minimums reaching 4°C (40°F) and an average of 14°C (57°F), while in August, the temperatures are milder, with a minimum of 8°C (47°F) and an average of 16°C (61°F). Both months experience similar maximum temperatures, peaking at 27°C (80°F). However, September sees slightly less precipitation overall (61 mm compared to August's 82 mm), despite having rain on 12 days compared to 15 days in August. Humidity levels are slightly higher in September at 87%, compared to August's 82%. For more details about August weather, you can visit Sunderland weather in August.
September and October exhibit a noticeable shift in weather patterns. In September, temperatures range from a minimum of 4°C (40°F) to a comfortable maximum of 27°C (80°F), with an average of 14°C (57°F). The month sees approximately 61 mm (2.4 in) of precipitation over 12 days and has a relatively high humidity level of 87%. In contrast, October brings cooler temperatures, with a minimum of 2°C (37°F), an average of 11°C (52°F), and a maximum of 21°C (70°F). Precipitation increases to 82 mm (3.2 in) across 14 days, accompanied by slightly higher humidity at 89%. For more detailed insights on the weather, you can check out Sunderland weather in October.
September and November present distinct contrasts in weather patterns. In September, temperatures range from a low of 4°C (40°F) to a comfortable high of 27°C (80°F), with an average of 14°C (57°F). The month experiences a relatively moderate amount of precipitation, totaling 61 mm (2.4 in) over about 12 days and maintaining a humidity level of 87%. In contrast, November sees a notable drop in temperatures, with minimums plummeting to -2°C (28°F) and a maximum reaching only 16°C (61°F), leading to an average temperature of 8°C (46°F). Precipitation slightly increases to 63 mm (2.5 in), occurring over 13 days, and humidity rises to 90%. For a more detailed look at November weather patterns, check out Sunderland weather in November.
In September, the weather tends to be milder with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 27°C (80°F) and an average of 14°C (57°F). The month experiences about 61 mm (2.4 in) of precipitation over approximately 12 days, accompanied by high humidity at 87%. In contrast, December brings a substantial drop in temperatures, with minimums dipping to -4°C (24°F) and maximums peaking at 14°C (57°F), averaging around 6°C (42°F). Although December sees slightly higher precipitation levels at 69 mm (2.7 in) spread over about 14 days, it maintains a similar humidity level at 88%. For a more detailed look at December weather, you can check this Sunderland weather in December.
As September unfolds in Sunderland, the weather begins to shift noticeably from the summer's warmth, presenting a delightful blend of mild temperatures and increased humidity. With daily highs still reaching up to a comfortable 27°C (80°F), the month's average of 14°C (57°F) signifies a gentle transition towards the cooler autumn months. However, the increase in rainfall, with about 61 mm (2.4 in) over 12 days, introduces more variability, as the city readies itself for the changing season. This delightful mix of warm afternoons and crisp, refreshing evenings makes September a unique and captivating time for both residents and visitors alike. For a deeper understanding of what to expect throughout the year, visit Sunderland Climate.