Last updated: March 17, 2025
September in Dunoon, United Kingdom, presents a delightful blend of mild temperatures and frequent rain. With maximums reaching 24°C (76°F) and an average of 13°C (55°F), the weather can shift dramatically, peaking with refreshing coolness. However, expect to encounter 18 days of precipitation, totaling 140 mm (5.5 in), creating a vibrant, lush landscape. The high humidity level at 88% ensures that the air feels fresh, though it may require an umbrella for those spontaneous showers. This transitional month offers a unique experience of the beauty and unpredictability typical of the region.
In September, Dunoon, United Kingdom, experiences a significant transition, marking the end of summer and the onset of autumn. With minimum temperatures hovering around 0°C (32°F) and average highs reaching a pleasant 24°C (76°F), this month offers a delightful blend of warmth and coolness. The average temperature settles at a comfortable 13°C (55°F), making September a wonderful time for outdoor activities amid the changing colors of nature. As the month progresses, you can feel the crispness in the air starting to take hold, a gentle reminder of the cooler months ahead. This balance of warmth and coolness perfectly embodies the charm of early autumn, inviting both locals and visitors to embrace the beauty of Dunoon.
In September, Dunoon experiences a noteworthy blend of rainfall, receiving 140 mm (5.5 in) over 18 days. While it's a significant drop from the wetness of August, which saw 171 mm (6.7 in) of precipitation, September still maintains an above-average level typical for the transition into autumn. This month serves as a precursor to the wetter days ahead, with October predicting a sharp increase to 205 mm (8.1 in). The fluctuation in September highlights the lingering summer moisture while hinting at the upcoming seasonal shifts, setting the stage for the abundant rainfall that characterizes the latter part of the year.
In September, Dunoon, United Kingdom, experiences a notable increase in humidity, rising to 88%. This uptick marks a continuation of the summer pattern where humidity levels have hovered around 86% in both July and August. As autumn approaches, the overall trend suggests a gradual rise in humidity from the 82% in May, culminating in higher levels as the year progresses, peaking at 90% in November. This seasonal shift hints at the region's characteristic moist climate, ensuring that Dunoon remains enveloped in a comforting blanket of coastal humidity as it transitions into the cooler months.
As summer transitions into autumn, Dunoon's UV Index in September reflects a moderate level of solar intensity, registering a UV Index of 5. This marks a slight decline from the high readings of the preceding months, yet individuals should remain cautious as the burn time remains at 30 minutes. The trend throughout the year exhibits a gradual increase in UV exposure during the warmer months, peaking in July and August at a very high level of 8, before tapering off again in September and through to the lower winter months. Awareness of these changes is vital to ensure proper sun protection. For further details on UV levels and safety, visit Dunoon UV Index.
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As September dawns in Dunoon, the air carries a hint of summer’s fading warmth, with 275 hours of sunshine illuminating the skies. Following the bustling peak of summer months, where July and August basked in nearly 390 hours of bright sunshine, September gracefully transitions into the softer light of autumn. This month marks a significant drop from the vibrant summer glow but still offers more sunlight than the cooler months ahead, such as October and November, which see only 203 and 107 hours, respectively. The gradual decline in daylight hours reveals an inviting yet reflective atmosphere, perfect for enjoying the rich natural beauty of Dunoon as it prepares for the upcoming seasonal shift.
September in Dunoon, United Kingdom, brings a noticeably lower chance of sunshine, with only a 15% likelihood of sunny days. This trend signifies a shift as the summer months close, with the average chances of sunshine dwindling from the previous months of June, July, and August, which hover around 23–24%. A glance at the data reveals that April shines as the brightest point of the year at 47%, while winter months like December and January see even lower probabilities. As the warmth of late summer transitions to the cooler embrace of autumn, residents and visitors alike may want to prepare for more overcast days as September unfolds.
As summer gives way to autumn, September in Dunoon sees a notable shift in daylight duration, with an average of 12 hours lighting up the days. This decrease follows a peak of 17 hours in June, as the long, sun-soaked days of summer gradually recede. The transition is marked by a gradual fading of light that begins in August, which offered 14 hours of daylight, hinting at the cooler months ahead. With the arrival of September, the daylight becomes more balanced, giving residents a refreshing mix of crisp air and lingering sunshine before the daylight dips further to 10 hours in October. This rhythm of light serves as a beautiful reminder of nature's cycle, blending the warmth of early autumn with the anticipation of winter’s early evenings.
As the summer fades, September in Dunoon sees a gentle shift in its winds, with an average speed of 3.2 m/s (7 mph). This marks a slight increase from the lazy breezes of July and August, where winds languished at their lowest, averaging 2.3 m/s (5 mph) and 2.7 m/s (6 mph) respectively. However, September's winds remain milder compared to the brisk gusts that the autumn months will soon bring. October ushers in a noticeable rise to 4.3 m/s (10 mph), highlighting a playful dance between the waning warmth of summer and the encroaching chill of fall. Thus, while September offers a gentle breath of air, the promise of more spirited winds looms on the horizon.
The weather in Dunoon 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 Dunoon and find detailed weather information for every month.
In September, the weather in Dunoon is generally milder, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 24°C (76°F) and an average of 13°C (55°F). The month also sees significant rainfall, with 140 mm (5.5 in) spread over 18 days and high humidity at 88%. In contrast, January brings chillier conditions, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 13°C (55°F) and an average temperature of just 5°C (41°F). Precipitation is slightly less at 122 mm (4.8 in) over 15 days, and humidity remains similar at 87%. For more details on January weather, visit Dunoon weather in January.
September and February present contrasting weather patterns. In September, the temperatures range from a minimum of 0°C (32°F) to a maximum of 24°C (76°F), with an average of 13°C (55°F). The month receives about 140 mm (5.5 in) of precipitation over 18 days and is characterized by relatively high humidity at 88%. In contrast, February experiences colder temperatures, with a minimum of -6°C (22°F) and an average of just 5°C (41°F), peaking at 13°C (55°F). This month sees more precipitation, totaling 187 mm (7.4 in) across 19 days, while the humidity remains slightly lower at 86%. For a detailed look at February weather in Dunoon, check out Dunoon weather in February.
In comparing the weather of September and March, we observe notable differences in temperature and precipitation patterns. September typically enjoys a milder climate, with average temperatures ranging from 0°C (32°F) at night to a pleasant 24°C (76°F) during the day. In contrast, March experiences cooler temperatures, with nightly lows of -6°C (21°F) and daytime highs reaching only 16°C (61°F). While September receives about 140 mm (5.5 in) of precipitation over 18 days, March sees slightly more rainfall at 149 mm (5.8 in) across the same number of days. Humidity levels are also quite similar, with September at 88% and March at 86%. For more detailed information on March weather, you can check out Dunoon weather in March.
In September, the weather is generally warmer, with average temperatures ranging from a minimum of 0°C (32°F) to a maximum of 24°C (76°F), compared to April's cooler range of -3°C (26°F) to 21°C (71°F). September also experiences significantly more precipitation, with 140 mm (5.5 in) over 18 days, while April sees a milder 62 mm (2.4 in) across 14 days. Humidity levels are similar in both months, at 88% for September and 85% for April, creating a damp atmosphere. For more detailed information about April weather, you can visit Dunoon weather in April.
When comparing the weather in September and May, we see some notable differences. September typically has a wider temperature range, with minimums at 0°C (32°F), an average of 13°C (55°F), and maximums reaching 24°C (76°F). In contrast, May features similar maximum temperatures but a slightly lower average of 11°C (51°F) while also starting at a minimum of 0°C (32°F). Precipitation tends to be heavier in September, with 140 mm (5.5 in) over approximately 18 days, compared to May's 81 mm (3.2 in) across about 14 days. Humidity levels are higher in September at 88%, compared to 82% in May, indicating that September can feel more humid. For more detailed insights, you can check out Dunoon weather in May.
In comparing the weather of September and June, we observe some notable similarities and differences. Both months have an average temperature of around 13°C (55°F), but June typically experiences slightly warmer temperatures, with a maximum of 26°C (80°F) compared to September's 24°C (76°F). Precipitation levels are quite similar, with September receiving 140 mm (5.5 in) over 18 days and June slightly less at 133 mm (5.2 in) over 17 days. Additionally, September tends to be more humid, with levels at 88%, whereas June registers at 84%. For a more detailed look at June weather, you can visit Dunoon weather in June.
In comparing the weather between July and September, we see a notable shift in temperatures and precipitation. July typically enjoys warmer temperatures, with a minimum of 8°C (46°F), an average of 15°C (59°F), and a maximum of 26°C (79°F). In contrast, September experiences cooler conditions, starting from a minimum of 0°C (32°F) and peaking at 24°C (76°F), averaging just 13°C (55°F). In terms of precipitation, September is slightly wetter, with 140 mm (5.5 in) over 18 days, compared to July’s 120 mm (4.7 in) over 17 days. Humidity levels are also higher in September at 88%, while July maintains a lower figure of 86%. For more specific insights on July weather, you can explore Dunoon weather in July.
In comparing the weather between August and September, we find distinct characteristics that define each month. September experiences a wider temperature range with a minimum of 0°C (32°F) and an average of 13°C (55°F), while August stays warmer, with a minimum of 7°C (45°F) and an average of 14°C (58°F). Both months share the same maximum temperature of 24°C (76°F). Precipitation is slightly lower in September, totaling 140 mm (5.5 in) over 18 days compared to August's 171 mm (6.7 in) over 21 days. Humidity is notably higher in September at 88%, compared to August's 86%. For more detailed weather information, you can check Dunoon weather in August.
In September, the weather features milder temperatures with a minimum of 0°C (32°F) and a maximum of 24°C (76°F), leading to an average of 13°C (55°F). The month experiences significant rainfall totaling 140 mm (5.5 in) across 18 days, with humidity at a high 88%. In contrast, October brings cooler temperatures, with a minimum dipping to -1°C (31°F) and an average of 10°C (50°F), reaching a maximum of 19°C (67°F). Additionally, October is wetter, seeing a total precipitation of 205 mm (8.1 in) over 21 days, while humidity slightly increases to 89%. For more detailed information, check Dunoon weather in October.
September and November exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 0°C (32°F) to a maximum of 24°C (76°F), with an average of 13°C (55°F). The month sees about 140 mm (5.5 in) of precipitation over 18 days and has a humidity level of 88%. In contrast, November experiences cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 14°C (58°F), averaging at 7°C (45°F). Rainfall increases to 163 mm (6.4 in) across 19 days, accompanied by slightly higher humidity at 90%. For more detailed insights on November weather, you can check Dunoon weather in November.
September and December present contrasting weather patterns in terms of temperature and precipitation. In September, the temperatures range from a minimum of 0°C (32°F) to a maximum of 24°C (76°F), with an average of 13°C (55°F). The month experiences around 140 mm (5.5 in) of precipitation over 18 days, and humidity remains high at 88%. In contrast, December sees colder conditions, with temperatures dropping to a minimum of -5°C (23°F) and a maximum of only 12°C (55°F), averaging just 5°C (42°F). Precipitation increases to 167 mm (6.6 in) across 19 days, accompanied by slightly lower humidity at 86%. For a detailed look at December weather patterns, you can explore Dunoon weather in December.
As September unfolds in Dunoon, the weather offers a unique transitional charm compared to the summer months. The days start with a pleasant warmth, occasionally reaching up to 24°C, but the average temperature dips significantly, hinting at the oncoming chill of autumn. This month is notably wet, experiencing frequent rain over 18 days, ensuring the landscape remains lush and vibrant. With a high humidity level of 88%, the atmosphere feels thick and invigorating, embodying the essence of the changing season. For those interested in a more detailed look at the climatic patterns, be sure to check out Dunoon Climate.