Last updated: March 17, 2025
September in Carrickfergus, United Kingdom, offers a blend of mild temperatures and considerable rainfall. With a maximum temperature reaching 20°C (68°F) and an average of 13°C (56°F), the weather presents a gentle atmosphere, ideal for exploring the scenic coastlines. However, be prepared for the minimum drop to 8°C (46°F) during cooler evenings. This transitional month experiences 95 mm (3.8 in) of precipitation over 17 days, making it one of the wetter periods of the year. Coupled with high humidity levels at 88%, September in Carrickfergus is perfect for those who enjoy the charms of an early fall climate.
As September rolls into Carrickfergus, the temperatures begin to reflect the transition from summer to autumn. With a minimum of 8°C (46°F) and a comfortable average of 13°C (56°F), the month offers mild days that invite outdoor exploration. The maximum temperatures peak at 20°C (68°F), allowing for pleasant afternoons under the softening sun. This slight cooling trend stands in contrast to the warmth of August, signaling the approach of cooler months. As the days grow shorter, one can enjoy a crisp atmosphere that makes September a delightful time to experience the scenic beauty of Carrickfergus.
As September arrives in Carrickfergus, the weather begins to settle into the rhythm of autumn. With an average precipitation of 95 mm (3.8 in) spread across 17 days, this month showcases a notable decrease in rainfall compared to the previous month's 129 mm (5.1 in) over 19 days. This shift marks a transition toward cooler and drier conditions, yet still maintains a vibrant tapestry of lush greenery typical of the onset of autumn. Following September, October sees a resurgence in rainfall, with expectations of 125 mm (4.9 in), signaling that the sporadic showers are far from over. Overall, while September presents a slightly diminished precipitation pattern, it sets the stage for the increasingly wet and chilly months ahead.
In September, Carrickfergus experiences a noticeable increase in humidity, reaching 88%, which marks one of the highest levels of the year. This uptick sets the stage for the wetter autumn months ahead, as humidity levels gradually climb from 85% in April to a peak of 90% in November. Notably, September's humidity is a step above the consistent 86% seen in the preceding months of July and August, indicating a shift towards the more humid conditions typical of fall. As summer wanes and the air becomes heavier, residents can expect a more refreshing yet damp atmosphere, heralding the seasonal transition.
As September unfolds in Carrickfergus, the UV Index settles at a moderate 5, indicating a shift from the high levels experienced during the summer months. This drop reflects the changing seasons, as the conditions become less intense compared to the peak of July and August, which saw UV indices at 8. With a burn time of 30 minutes, it's still essential to be mindful of sun exposure, especially during midday. This moderate rating encourages outdoor activity while reminding residents and visitors to take appropriate sun protection measures. For more detailed information on UV levels throughout the year, visit Carrickfergus UV Index.
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As summer transitions into fall, September shines brightly in Carrickfergus, offering a delightful contrast to the darker winter months ahead. With 302 hours of sunshine, this month continues the trend of plentiful light observed throughout the warmer season, following on from the peak of 415 hours in July. Although September sees a dip in sunshine compared to the summer highs, it remains significantly brighter than the winter months, like January’s mere 82 hours. This gradual decline illustrates the onset of autumn, yet the lingering warmth ensures that the charm of the coastline remains inviting, captivating both locals and visitors alike. The balance of warmth and light in September serves as a beautiful farewell to summer, before the shorter days of October approach.
In Carrickfergus, United Kingdom, September presents a 22% chance of sunny weather, aligning closely with the somewhat overcast trends of the late summer months. This percentage reflects a gradual decline from the sunnier spring months, where April boasts a higher likelihood at 48%. As the seasons transition, the chance of sunshine dips further into the autumn, with October trailing behind at 19%. Overall, September's weather is a reminder that while summer is fading, the hope for pleasant days still lingers, albeit with the increasing anticipation of autumn's gray skies.
As summer transitions into autumn, September in Carrickfergus, United Kingdom, sees a gradual decline in daylight, offering around 12 hours of sunlight each day. This marks a noticeable drop from the vibrant 16 hours enjoyed in May and June, transitioning from the long, sunlit days of summer to the shorter daylight hours approaching winter. While still abundant in light compared to the winter months, September's daylight serves as a reminder of the changing seasons, gently signaling the shift toward the cozy, introspective atmosphere of autumn as evenings draw in earlier.
As September rolls into Carrickfergus, the wind eases into a gentle whisper, with an average speed of 4.2 m/s (9 mph). This marks a notable dip from the gustier summer months, where winds were tamed to 3.4 m/s in July and 3.9 m/s in August. Gradually, as autumn approaches, winds begin to pick up again, making way for a brisker October at 6.1 m/s (14 mph). The transition from the calmer summer days to the more invigorating autumn breezes reflects the shifting seasons, inviting locals and visitors alike to experience the enchanting coastal charm of Carrickfergus during this time of year.
The weather in Carrickfergus 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 Carrickfergus and find detailed weather information for every month.
In September, temperatures range from a minimum of 8°C (46°F) to a maximum of 20°C (68°F), with an average of 13°C (56°F). This month experiences significant rainfall, with 95 mm (3.8 in) spread across 17 days, resulting in high humidity levels at 88%. In contrast, January is much cooler, with temperatures dropping to a minimum of 1°C (33°F) and only reaching a maximum of 13°C (56°F), average around 6°C (44°F). Precipitation is slightly lower at 78 mm (3.1 in) over 14 days, and the humidity remains relatively stable at 87%. For more detailed insights, check out Carrickfergus weather in January.
September and February present distinct weather contrasts. In September, temperatures range from a mild 8°C (46°F) to a warm 20°C (68°F), creating an average of 13°C (56°F). The month experiences significant rainfall, with 95 mm (3.8 in) over 17 days, and humidity remains high at 88%. In contrast, February is much cooler, with temperatures spanning from a chilly 1°C (33°F) to 12°C (54°F), averaging just 6°C (43°F). Although February sees slightly more precipitation at 111 mm (4.4 in) across 16 days, the humidity is slightly lower at 86%. For more specific insights on February weather, you can explore Carrickfergus weather in February.
In comparing the weather between September and March, noticeable differences emerge. September enjoys a milder average temperature of 13°C (56°F), with maximums reaching up to 20°C (68°F), making it generally more pleasant than March, which has an average of only 7°C (44°F) and a maximum of 14°C (57°F). Precipitation levels are relatively similar for both months, with September receiving 95 mm and March slightly lower at 94 mm; however, both months see rain on about 17 days. Additionally, September's humidity sits at 88%, just above March's 86%, contributing to a cooler, crisper feel as spring begins. For more detailed information, you can check Carrickfergus weather in March.
When comparing the weather in September and April, we notice distinct differences in temperature and precipitation. September boasts a milder climate with average temperatures ranging from 8°C (46°F) to 20°C (68°F), while April sees cooler averages, peaking at 14°C (58°F). Additionally, September experiences more rain, with 95 mm (3.8 in) over 17 days, compared to April's 45 mm (1.8 in) over just 10 days. Humidity levels are fairly similar, with September at 88% and April at 85%. For a more detailed look at April's weather, you can visit Carrickfergus weather in April.
In September, temperatures tend to be milder with a minimum of 8°C (46°F) and an average of 13°C (56°F), reaching a maximum of 20°C (68°F). This month experiences higher precipitation levels, averaging 95 mm (3.8 in) over 17 days, contributing to a relatively high humidity of 88%. In contrast, May generally presents cooler conditions with minimum temperatures of 4°C (40°F) and an average of 10°C (51°F), peaking at 17°C (62°F). It has less rainfall, accumulating about 69 mm (2.7 in) over 12 days and slightly lower humidity at 82%. For a closer look at the conditions you can expect, check out Carrickfergus weather in May.
In comparing the weather of September and June, we find that both months share similar average temperatures, with September experiencing a slight edge in daytime warmth at a maximum of 20°C (68°F) compared to June's 19°C (66°F). However, June holds a marginally lower minimum temperature of 8°C (47°F) compared to September's 8°C (46°F). Precipitation levels are quite close, with September receiving 95 mm (3.8 in) over 17 days and June seeing slightly less at 93 mm (3.7 in) over 15 days. Humidity is higher in September at 88%, while June is relatively drier with 84% humidity. For more details, you can check Carrickfergus weather in June.
In comparing the weather of September and July, we observe that both months have similar maximum temperatures, peaking at around 20°C (68°F). However, September typically experiences slightly cooler minimum and average temperatures, averaging 13°C (56°F) compared to July's average of 14°C (58°F). Precipitation is notably higher in July, with 108 mm (4.2 in) falling over 15 days, whereas September sees a total of 95 mm (3.8 in) across 17 days, indicating a more prolonged but lighter rainfall pattern during the latter month. Additionally, September has a higher humidity level at 88% compared to July's 86%. For more detailed information on July weather, you can visit Carrickfergus weather in July.
In comparing the weather between September and August, September tends to be slightly cooler, with minimum temperatures dropping to 8°C (46°F) compared to August's minimum of 10°C (51°F). The average temperature in September is 13°C (56°F), while August sees an average of 14°C (58°F). Additionally, September experiences less total precipitation, with 95 mm (3.8 in) over 17 days, versus 129 mm (5.1 in) over 19 days in August. Humidity levels are also marginally higher in September at 88%, compared to 86% in August. For a more detailed look at August's weather, you can refer to Carrickfergus weather in August.
September and October present a notable shift in weather patterns. In September, temperatures tend to range from a minimum of 8°C (46°F) to a maximum of 20°C (68°F), with an average of 13°C (56°F). The month experiences around 95 mm (3.8 in) of precipitation over 17 days, and humidity levels remain high at 88%. Conversely, October sees a decline in temperatures, with a minimum of 5°C (41°F) and a maximum of 17°C (63°F), resulting in an average of 11°C (53°F). Precipitation increases to 125 mm (4.9 in) over 19 days, with humidity slightly rising to 89%. For detailed insights, you can check Carrickfergus weather in October.
September and November display notable differences in their weather patterns. In September, temperatures range from a minimum of 8°C (46°F) to a maximum of 20°C (68°F), with an average of 13°C (56°F). The month sees 95 mm (3.8 in) of precipitation over 17 days, accompanied by high humidity levels at 88%. In contrast, November experiences cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 14°C (58°F), yielding an average of only 9°C (48°F). Precipitation increases to 128 mm (5.1 in) over 21 days, while humidity rises slightly to 90%. For a more detailed look at November's weather, visit Carrickfergus weather in November.
In comparison to September, December experiences a notable drop in temperatures, with averages falling from around 13°C (56°F) to just 7°C (45°F). The minimum temperature in September is 8°C (46°F), while December sees it decrease further to 2°C (36°F). Both months are relatively wet, but December has slightly higher precipitation at 118 mm (4.7 in) over 18 days compared to September’s 95 mm (3.8 in) over 17 days. Humidity levels remain high in both months, with December at 86% and September at 88%. For more detailed information, you can visit Carrickfergus weather in December.
As September rolls in, Carrickfergus experiences a noticeable shift in weather, transitioning from the warmer summer months. With temperatures peaking around a comfortable 20°C, the air is tinged with a crispness that signals the approach of autumn. However, this month also brings an uptick in rainfall, with nearly half the days seeing some precipitation, resulting in a humid atmosphere that lingers. Compared to the preceding summer, September's cooler average temperatures and increased moisture create a refreshing yet unpredictable climate. For a deeper dive into what to expect throughout the year, check out the Carrickfergus Climate.