Last updated: March 17, 2025
September in Rostrevor, United Kingdom, presents a mix of mild temperatures and notable precipitation, making it a season of transition. With a maximum temperature reaching 21°C (71°F) and an average of 13°C (56°F), the days can be pleasantly warm, while nights can dip to a brisk 4°C (39°F). The month is characterized by significant humidity at 86%, creating a lush atmosphere that feeds the landscape. However, residents and visitors should prepare for rain, as 75 mm (2.9 in) of precipitation over 14 days typifies this time of year. Embrace the refreshing charm of early autumn in Rostrevor, where the natural beauty is accentuated by the changing weather!
September in Rostrevor, United Kingdom, marks a gentle transition from the warmth of summer to the cooler embrace of autumn. With minimum temperatures around 4°C (39°F) and maximums reaching 21°C (71°F), the month offers a pleasant average of 13°C (56°F). As the days grow shorter, the warmth slowly recedes, but September still holds onto those delightful late-summer vibes, presenting a comfortable climate for outdoor activities. This month’s temperatures reflect a notable decrease from the peak summer highs, illustrating a gradual cooling trend as nature prepares for the cooler months ahead.
In September, Rostrevor experiences a moderate precipitation level, with a total of 75 mm (2.9 in) of rainfall spread over about 14 days. This marks a slight decrease from the wet month of August, which recorded 111 mm (4.4 in), yet maintains a consistent pattern of early autumn moisture. As summer gives way to fall, September's rainfall supports the lush, green landscapes characteristic of the region. The relatively stable precipitation levels compared to preceding months signal a transition phase, setting the tone for the wetter conditions that typically arrive in October and November. Overall, this month blends the lingering warmth of summer with the cooler, damper climate of autumn, inviting a vibrant shift in the scenery.
In Rostrevor, United Kingdom, September marks a peak in humidity, reaching 86%, mirroring the higher levels experienced throughout the summer months. This slight increase from August's 85% indicates a consistent pattern of elevated humidity during the late summer to early autumn transition. As the year progresses into autumn, the humidity gradually rises again in October to 87%, suggesting that Rostrevor might experience a lingering dampness that enhances its lush landscapes. Overall, the data reveals a humidity trend that remains predominantly high across the months, with only minor fluctuations, creating a uniquely moist coastal environment that characterizes this charming region.
As September arrives in Rostrevor, the UV Index reflects the transition from the summer's intense rays to a more moderate exposure. With a UV Index of 5, this month marks a decline from the peak of 8 seen in July and June, but still requires careful attention to sun safety, as the moderate exposure category indicates a burn time of up to 30 minutes for unprotected skin. This pattern highlights the dwindling summer sunshine, yet encourages outdoor enjoyment while reminding residents and visitors to remain mindful of their UV exposure. For more detailed information and tips, check out the Rostrevor UV Index.
UV Risk Categories
As the summer transitions to autumn, September in Rostrevor offers a delightful blend of sunlight, with 283 hours shining down on this picturesque locale. While the month sees a decline in daylight from the vibrant summer months—peaking at 383 hours in May and near 375 hours in June—it still basks in more than enough warmth to enjoy outdoor activities. This drop follows a consistent downward trend from the peak summer days, yet September retains a charm of its own, reflecting the lingering warmth before the dreariness of winter sets in. As the sun begins to retreat further in October, with only 223 hours predicted, September stands out as a beautiful farewell to the season, inviting locals and visitors alike to savor the last golden days of the year.
In Rostrevor, September typically sees a 20% chance of sunny weather, reflecting a trend of diminishing sunshine as summer comes to a close. While April enjoys the highest likelihood at 41%, the months leading up to September, namely May and June, indicate a slight dip in sunny days, with chances at 34% and 22%, respectively. As autumn approaches, this lower percentage, coupled with the lingering unpredictability of British weather, suggests that residents and visitors alike should be prepared for a mix of sun and clouds during this transitional month. Overall, September's sunshine likelihood maintains a relatively modest level, mirroring the trends observed in the late summer months.
As summer fades into autumn in Rostrevor, United Kingdom, the daylight hours gradually decrease throughout September, offering 12 hours of light. This marks a gentle decline from the longer, sun-drenched days of July and August, when residents enjoyed up to 16 and 14 hours of daylight, respectively. The shift is a reminder of the approaching winter months, where the daylight dips significantly to just 8 hours by November. Despite this reduction, September still retains its charm, balancing the fading warmth of summer with the early hints of fall, creating a transitional period that's beautifully reflective in the natural landscape.
As September unfolds in Rostrevor, United Kingdom, the wind continues to whisper a gentle symphony, averaging 3.6 m/s (8 mph). This slightly elevated breeze carries the remnants of summer, a contrast to the calmer July and August, which saw the wind dip to 2.8 m/s (6 mph) and 3.5 m/s (8 mph) respectively. Notably, September's wind speed aligns closely with April's 3.6 m/s, hinting at a seasonal transition as the air begins to cool. Looking ahead, October promises an uptick with an average of 4.8 m/s (11 mph), followed by consistent winds through the fall months. This trend suggests that while September may mark a serene end to summer, the impending months will usher in a more invigorating breeze, perfect for those who enjoy the crispness of autumn air.
The weather in Rostrevor 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 Rostrevor and find detailed weather information for every month.
In September, the weather is generally milder, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 21°C (71°F) and an average of 13°C (56°F). With precipitation totaling 75 mm (2.9 in) over about 14 days, the month tends to be fairly wet, while humidity remains high at 86%. In contrast, January experiences much colder temperatures, with a minimum of -4°C (25°F) and a maximum of 14°C (57°F), yielding an average of 6°C (43°F). Although it is drier than September, with only 55 mm (2.2 in) of precipitation over 10 days, the humidity is slightly lower at 85%. For more detailed insights about January weather, you can check Rostrevor weather in January.
September and February present contrasting weather experiences. In September, temperatures typically range from a minimum of 4°C (39°F) to a maximum of 21°C (71°F), with an average of 13°C (56°F), making it a milder month. In contrast, February is considerably colder, with temperatures dropping to a minimum of -3°C (26°F) and an average of 6°C (43°F). Both months see significant precipitation, with September receiving 75 mm (2.9 in) over about 14 days and February slightly wetter at 83 mm (3.3 in) with precipitation on 15 days. Interestingly, humidity levels remain consistent at 86% for both months, creating a damp atmosphere. For more details about February weather, you can visit Rostrevor weather in February.
September and March exhibit contrasting weather patterns, each with its own distinct characteristics. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 21°C (71°F), with an average of 13°C (56°F). The month sees about 75 mm (2.9 in) of precipitation over 14 days, maintaining a consistent humidity level of 86%. In contrast, March brings cooler conditions with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 15°C (60°F), averaging 7°C (45°F). While slightly wetter than September, March experiences 80 mm (3.1 in) of precipitation over 16 days, keeping the humidity level steady at 86%. For more details on March weather, you can visit Rostrevor weather in March.
When comparing the weather in September and April, it's evident that September tends to be milder. The average temperature in September is around 13°C (56°F), with a max of 21°C (71°F), while April's average is cooler at 8°C (47°F), peaking at 19°C (66°F). Additionally, September receives more precipitation, totaling 75 mm (2.9 in) over about 14 days, compared to April's 43 mm (1.7 in) across 10 days. Humidity levels are quite similar in both months, with September at 86% and April slightly lower at 85%. For more details on April weather, you can refer to Rostrevor weather in April.
When comparing the weather in September and May, a few key differences stand out. September typically boasts a wider temperature range, with minimums around 4°C (39°F) and maximums reaching 21°C (71°F), while May's temperatures are slightly cooler, ranging from 0°C (33°F) to a similar maximum of 21°C (71°F). Additionally, September experiences more rainfall, averaging 75 mm (2.9 in) over about 14 days, compared to May's 61 mm (2.4 in) over 12 days. Humidity levels are also marginally higher in September at 86%, versus 83% in May. For a closer look at the specifics of May weather, you can check Rostrevor weather in May.
In comparing the weather of September and June, we can see some notable differences. September tends to be cooler, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 21°C (71°F), while June offers warmer conditions, with temperatures between 6°C (43°F) and 26°C (79°F). Precipitation levels are similar, with September recording 75 mm (2.9 in) across 14 days, and June featuring 72 mm (2.8 in) over 13 days. Humidity remains relatively high in both months, with September at 86% and June slightly lower at 85%. For more detailed information about June weather in Rostrevor, you can visit Rostrevor weather in June.
When comparing the weather in September to that of July, there are notable differences in temperature. September experiences cooler temperatures with a minimum of 4°C (39°F) and an average of 13°C (56°F), while July boasts a minimum of 8°C (46°F) and a warmer average of 16°C (61°F). Moreover, July can reach a maximum of 27°C (80°F), significantly higher than September's max of 21°C (71°F). Both months see similar precipitation levels, with September and July each receiving about 74-75 mm of rain over 14 days, and humidity remains consistent at 86%. For a detailed look at July's weather, you can visit Rostrevor weather in July.
In comparing the weather patterns of September and August, September tends to be cooler with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 21°C (71°F), while August experiences slightly higher temperatures, with a minimum of 7°C (46°F) and a maximum of 22°C (71°F). Additionally, September has more moderate precipitation, totaling 75 mm (2.9 in) over 14 days compared to August's 111 mm (4.4 in) spread across 18 days. The humidity levels remain relatively similar, with September at 86% and August at 85%. For a more detailed look at August's weather, you can check Rostrevor weather in August.
In September, temperatures in Rostrevor typically range from a minimum of 4°C (39°F) to a maximum of 21°C (71°F), with an average of 13°C (56°F). The month sees around 75 mm (2.9 in) of precipitation over approximately 14 days, accompanied by a humidity level of 86%.
In contrast, October experiences slightly cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 19°C (66°F), averaging 11°C (52°F). Precipitation increases marginally to 84 mm (3.3 in) across the same number of rainy days, while humidity rises slightly to 87%. This shift in weather indicates a transition into the chillier autumn months. For more details, check out Rostrevor weather in October.
In September, the average temperature ranges from a mild 4°C (39°F) at its lowest to a pleasant 21°C (71°F) at its peak, with an overall average of 13°C (56°F). The month experiences about 75 mm (2.9 in) of precipitation across 14 days, while humidity remains high at 86%. In contrast, November brings cooler weather with a minimum temperature that can drop to -1°C (30°F) and an average of 8°C (47°F), peaking at 15°C (59°F). This month sees a slight increase in precipitation, totaling 91 mm (3.6 in) over 15 days, with humidity continuing at 86%. For more specific details about the weather conditions during this time, check out Rostrevor weather in November.
In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 21°C (71°F), creating a mild and pleasant atmosphere with an average of 13°C (56°F). The month experiences about 75 mm (2.9 inches) of precipitation over 14 days, along with high humidity levels at 86%. In contrast, December sees a significant drop in temperatures, with a minimum of -2°C (29°F) and a maximum of 13°C (56°F), leading to an average temperature of just 6°C (44°F). Additionally, December is slightly wetter, receiving 92 mm (3.6 inches) of precipitation across 13 days, but with lower humidity at 84%. For more details on December weather, you can visit Rostrevor weather in December.
As September unfolds in Rostrevor, the weather marks a transition from the warmth of summer to the cool embrace of autumn. Temperatures begin to dip, providing a refreshing contrast with warm days yielding to chilly evenings, creating a delightful interplay that sets the stage for cozy gatherings. With an average humidity of 86% and the month experiencing around 14 days of rain, it's a time when the landscape flourishes in vibrant shades, invigorated by the frequent showers. This month's rainfall is notably higher than the preceding summer months, allowing for a lush, yet brisk atmosphere. For a deeper dive into Rostrevor's climate throughout the year, visit Rostrevor Climate.