Last updated: March 17, 2025
September in Malahide, Ireland, offers a delightful mix of weather, with maximum temperatures reaching 22°C (72°F) and an average of 14°C (57°F) that appeals to many visitors. However, the month is not without its challenges, as precipitation is common, with about 70 mm (2.7 in) of rain recorded over 13 days, resulting in a humid atmosphere at 86%. This combination of warmth and wetness creates a lush and vibrant landscape, making it an ideal time for exploring Malahide's picturesque surroundings.
September in Malahide, Ireland marks a delightful transition into autumn, with temperatures beginning to cool while still retaining a hint of summer's warmth. The month features a minimum temperature of 4°C (39°F) and an average of 14°C (57°F), reaching a pleasant maximum of 22°C (72°F). This gradual shift from the higher summer averages to the cooler autumnal climate is reflected in the comfortable September days, making it an ideal time for outdoor activities. With the average dipping from the summer highs of August, the temperate conditions create a charming atmosphere perfect for exploring the scenic beauty of the region before the chill of winter sets in.
In September, Malahide experiences a moderate precipitation total of 70 mm (2.7 in), showcasing slightly less rain than the previous month, yet still contributing to a robust late-summer climate. With 13 days of rainfall, this month continues the trend of wet weather that characterizes the late season, though it is notably less torrential than the record-high 95 mm (3.7 in) seen in August. As autumn approaches, this steady precipitation pattern signals a shift, bridging the gap between the lingering warmth of summer and the cooler, wetter months ahead. Overall, September maintains the region's reputation for unpredictable weather, encouraging both locals and visitors to keep their umbrellas handy.
September in Malahide, Ireland, continues the trend of high humidity that characterizes much of the year. With an average humidity level of 86%, it matches the peak of July and stands out among the slightly lower readings from May to August. This consistent moisture not only makes for a refreshing coastal ambiance but also hints at the transition into autumn. As the months progress toward October, humidity levels are set to rise again to 87%, indicating that while summer may be fading, the lush, green beauty of Ireland remains vibrantly alive, nourished by the persistent atmospheric moisture.
As summer fades into autumn, September in Malahide, Ireland, presents a shift in the UV Index, dropping to 5, which falls into the moderate exposure category. After experiencing the intense rays of summer months—peaking at a UV Index of 8 in both June and July—September's UV level allows for a more manageable burn time of 30 minutes. This downward trend signifies a return to safer sun exposure, making it an ideal time for outdoor activities without the extreme caution warranted in the height of summer. However, even in September, it’s wise to remain vigilant about sun safety. For comprehensive insights on UV levels throughout the year, check out Malahide UV Index.
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September in Malahide, Ireland, brings a remarkable shift in daylight, as the summer months begin to fade into autumn. With 288 hours of sunshine, it stands as a bright close to the sunny season, although it shows a noticeable decline from May’s peak of 385 hours. This month reflects a consistent decrease in sunshine hours, following the trends seen from July to August, but still retains its charm and warmth, making it a perfect time for leisurely walks along the scenic coastline. As the days shorten, the sunlight serves as a beautiful reminder of the vibrant summer past, while the crisp autumn air hints at the change of seasons ahead.
In Malahide, Ireland, the likelihood of sunny weather in September is relatively low, standing at just 21%. This trend follows a pattern observed throughout the year, with April peaking at 44% and other months like May and July also showing promising possibilities of sunshine. However, as summer transitions into autumn, the sunshine percentages dip, with September matching the low probabilities of October and February. Despite this modest chance, September can still offer glimpses of sun, giving the coastal town a chance to bask in the last remnants of summer warmth before autumn fully sets in.
As summer fades, September in Malahide, Ireland, brings a gentle transition in daylight hours, offering about 12 hours of light each day. This is a noticeable shift from the 16 hours enjoyed in both June and July, reflecting the natural ebb and flow of the seasons. Autumn begins to assert itself as daylight gradually diminishes, following the trend set in August with 14 hours. The progression into fall is clear, as daylight wanes toward the shorter days of October and November. This month serves as a beautiful reminder of nature's rhythms, where the vibrant hues of early fall come alive beneath the warming sun, before the longer nights of winter set in.
As summer fades and autumn begins, September in Malahide, Ireland greets visitors with a gentle breeze, averaging 3.5 m/s (8 mph) wind speed. This month follows a pattern of slightly diminishing winds, mirroring the seasonal shift observed since July's calmest days. While September's winds are consistent with the low averages of recent months, the anticipation of fall brings a refreshing crispness to the air. In contrast, as October approaches, Malahide experiences an uptick in wind speed, hinting at the more robust breezes that are characteristic of the autumn months ahead. This transitional period, marked by a serene yet lively air, encapsulates the essence of early fall in this picturesque coastal town.
The weather in Malahide 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 Malahide and find detailed weather information for every month.
In September, temperatures are relatively mild, ranging from a minimum of 4°C (39°F) to a maximum of 22°C (72°F), with an average of 14°C (57°F). The month sees considerable precipitation, averaging 70 mm (2.7 in) over about 13 days, accompanied by high humidity levels around 86%. In contrast, January brings cooler conditions with temperatures dipping as low as -3°C (27°F) and peaking at 14°C (58°F), averaging 6°C (43°F). While January has slightly less precipitation at 53 mm (2.1 in) over 10 days, the humidity remains similar at 85%. For more detailed information, you can check Malahide weather in January.
September and February present contrasting weather patterns, showcasing the shift from late summer to mid-winter in Malahide. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (72°F), with an average of 14°C (57°F). The month experiences around 70 mm (2.7 in) of precipitation over 13 days, complemented by high humidity levels of 86%. In contrast, February is much colder, with temperatures dipping to a minimum of -2°C (29°F) and only reaching a maximum of 15°C (58°F), averaging at 7°C (44°F). The precipitation in February is slightly higher at 73 mm (2.9 in) spread over 14 days, yet the humidity remains constant at 86%. Overall, while September offers milder and warmer conditions, February brings a chill that highlights the transition towards spring. For more detailed information, you can check Malahide weather in February.
September and March exhibit distinct weather characteristics, marking significant transitions in seasons. September typically enjoys milder temperatures with averages around 14°C (57°F) and maximums reaching 22°C (72°F), while March lingers in the colder realm, with averages of 7°C (45°F) and maximums only reaching 16°C (62°F). Both months experience similar levels of humidity at 86%, highlighting a damp atmosphere, but precipitation in September accounts for 70 mm (2.7 in) over 13 days, whereas March sees slightly higher precipitation at 73 mm (2.9 in) over 14 days. For a closer look at the specific conditions during March, you can refer to Malahide weather in March.
September and April present distinct weather profiles, each with its own unique characteristics. In September, temperatures range from a minimum of 4°C (39°F) to an average of 14°C (57°F), peaking at 22°C (72°F), making it generally warmer than April, where temperatures fluctuate from a minimum of -1°C (31°F) to an average of 9°C (48°F), with a maximum of 19°C (67°F). Rainfall is more frequent in September, contributing to a total of 70 mm (2.7 in) of precipitation over 13 days, whereas April sees less rain at 44 mm (1.7 in) across 11 days. Despite this, both months have similar humidity levels, with September at 86% and April slightly lower at 85%. For more details on conditions specific to April, visit Malahide weather in April.
September and May both feature similar maximum temperatures, reaching around 22°C (72°F), but the overall feel of the months differs considerably. September enjoys slightly warmer average temperatures, with lows around 4°C (39°F) compared to May's 1°C (34°F). Additionally, September experiences higher humidity levels at 86%, contrasted with May's 83%, making it feel a bit more muggy. Precipitation is also noteworthy, with September receiving 70 mm (2.7 in) over 13 days, while May sees 62 mm (2.4 in) across 12 days. For a closer look at the weather specifics, you can check out Malahide weather in May.
When comparing the weather in September and June, we can see some notable differences and similarities. In June, temperatures tend to be slightly warmer, with minimums around 7°C (44°F) and maximums reaching up to 25°C (77°F), while September has minimums of 4°C (39°F) and maximums of 22°C (72°F). The average temperatures are also marginally higher in June at 15°C (58°F) compared to September’s 14°C (57°F). Both months experience similar levels of precipitation, with June seeing 69 mm (2.7 in) and September slightly higher at 70 mm (2.7 in), and both have rainfall on approximately 13 days. Humidity levels are almost identical as well, with June at 85% and September at 86%. For those interested in a deeper look at June's conditions, you can check out this link: Malahide weather in June.
In comparing the weather of September and July, we find notable differences in temperature and precipitation. July typically enjoys milder evenings with a minimum temperature of 8°C (47°F) and daytime highs reaching 27°C (80°F), resulting in an average of 16°C (62°F). In contrast, September cools down more significantly, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 22°C (72°F) and an average of 14°C (57°F). Both months experience similar levels of precipitation—July sees about 73 mm (2.9 in) over 12 days, while September has slightly less at 70 mm (2.7 in) across 13 days. Humidity remains consistent at 86% for both months. For more specific details on July weather, you can check Malahide weather in July.
In comparing the weather of September and August, we observe a noticeable drop in temperatures. September’s minimum temperature dips to 4°C (39°F), while August remains milder with a minimum of 8°C (47°F). The average temperature in September is also lower at 14°C (57°F), compared to August's 16°C (61°F). Although the maximum temperature is quite similar, peaking at 22°C (72°F) in September and 23°C (74°F) in August, September experiences more rainy days, with precipitation occurring over 13 days and totaling 70 mm (2.7 in), compared to August's 16 rainy days and 95 mm (3.7 in). Despite the slight difference in humidity, remaining high at 86% in September versus 85% in August, the overall feel of September leans towards a cooler and wetter atmosphere. For a more detailed look at August weather, visit Malahide weather in August.
September and October show distinct shifts in weather patterns. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (72°F), with an average of 14°C (57°F). The month experiences 70 mm (2.7 in) of precipitation over 13 days, and humidity hovers around 86%. By October, the situation changes slightly; temperatures drop to a minimum of 2°C (36°F) and a maximum of 19°C (67°F), with an average of 11°C (53°F). Rainfall increases to 79 mm (3.1 in) while maintaining the same number of rainy days. Humidity also rises to 87%. For more details on climate specifics, you can check Malahide weather in October.
September and November exhibit quite distinct weather patterns. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (72°F), with an average of 14°C (57°F). The month sees about 70 mm (2.7 in) of precipitation across 13 days, accompanied by high humidity levels of 86%. In contrast, November experiences cooler temperatures, ranging from -1°C (31°F) to a maximum of 15°C (60°F), with an average of just 8°C (48°F). Rainfall increases slightly to 93 mm (3.6 in) over 14 days, while humidity remains consistent at 86%. For more details on November weather, you can visit Malahide weather in November.
September and December exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (72°F), with an average of 14°C (57°F). The month experiences around 70 mm (2.7 in) of precipitation over approximately 13 days and high humidity at 86%. In contrast, December sees cooler temperatures, with a minimum of -2°C (30°F) and a maximum of 13°C (56°F), averaging just 7°C (45°F). Precipitation increases slightly to 85 mm (3.4 in) over 14 days, while humidity remains relatively stable at 84%. For more detailed information, you can check out Malahide weather in December.
September in Malahide marks a transition into the cooler embrace of autumn, contrasting sharply with the balmy summer months. While temperatures can reach a pleasant 22°C (72°F), the average dips to a cool 14°C (57°F), indicating a noticeable shift. Increased precipitation, with rain falling on about 13 days, enhances the humidity level to a hefty 86%, creating a distinctly damp atmosphere. This mix of mild days and wet weather sets September apart as a time of change in the Irish climate, making it a unique experience for both residents and visitors. For a deeper understanding of the area's weather patterns, explore the Malahide Climate page.