Last updated: March 17, 2025
September in Howth, Ireland showcases a delightful blend of mild temperatures and invigorating maritime weather. With maximum highs reaching 20°C (68°F) and average daily temperatures hovering around 14°C (58°F), visitors can enjoy pleasant outdoor activities. However, the month is characterized by a notable minimum temperature of 7°C (45°F), reminding everyone of the crispness of autumn. Rain is a frequent visitor, as 86 mm (3.4 in) of precipitation falls over approximately 15 days, contributing to the lush greenery that defines this scenic coastal village. The high humidity at 86% ensures the air is rich and refreshing, making September an enchanting time to explore Howth's stunning landscapes and vibrant culture.
As September arrives in Howth, Ireland, the temperatures begin to reflect a gentle transition from summer's warmth to autumn's embrace. The month typically experiences a minimum of 7°C (45°F), an average of 14°C (58°F), and peaks at around 20°C (68°F). This marks a noticeable decline from the summer highs of August but remains comfortably mild, allowing for pleasant outdoor activities. The temperature patterns show a steady cooling trend as the year progresses, with September's climate striking a balance between the residual warmth of summer and the crispness inherent to autumn, making it an ideal time to explore Howth's stunning coastal landscapes.
September in Howth, Ireland, brings a notable transition in weather as summer fades into autumn. With precipitation totaling 86 mm (3.4 in) over 15 days, it reflects a slight dip compared to August's peak of 100 mm, yet retains a typical Irish unpredictability. This month often showcases an uptick in rain, suggesting the onset of the wetter seasons ahead; October, for instance, averages even higher at 103 mm. As the days grow shorter, the frequent rain can imbue the landscape with a lush, vibrant quality. Though September's rainfall may feel substantial, it is merely a precursor to the wetter months that follow, indicating a seasonal rhythm where the beauty of Howth remains vibrant, even under cloudy skies.
In Howth, Ireland, September experiences a notable humidity level of 86%, consistent with the elevated moisture seen throughout the summer months. This level mirrors the humidity of July and August, showing a tendency for high humidity to persist as autumn approaches. The trend indicates that the air remains richly moist as the seasons shift, making September one of the key months when the transition from summer warmth to the cooler climes of autumn begins. Notably, this humidity is reflective of Howth’s maritime climate, where the air often remains laden with moisture, creating a vibrant and lush environment. Following September, humidity slightly increases in October, reinforcing the notion that damp weather is a hallmark of the region, fostering a unique atmospheric charm year-round.
As summer transitions to autumn, the September UV Index in Howth, Ireland highlights a shift in sun exposure, with an index of 5, classified as moderate. This marks a decrease from the intense very high levels experienced during July and August. With a burn time of 30 minutes, it’s essential to remain mindful of sun protection as outdoor activities become more enticing with the cooler weather. The UV Index typically lowers after September, as the days grow shorter, moving towards a moderate index of 3 in October. To learn more about how UV levels fluctuate throughout the year, visit Howth UV Index.
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September in Howth, Ireland, brings a delightful transition as summer gracefully ebbs into autumn. With 304 hours of sunshine, it marks the tail end of a vibrant season, following the peak of 405 hours in May and an impressive 399 hours during both June and July. As the days gradually shorten, the steady decline from August’s 354 hours shows that while the warmth lingers, the golden days are noticeably fewer. This month shines brighter than the darker winter months, like November and December, which struggle to reach 122 and 98 hours, respectively. The September sun not only offers a pleasant closing chapter to summer but also sets the stage for the cozy charm of autumn ahead.
In Howth, Ireland, the likelihood of enjoying sunny weather tends to dip as summer wanes, with September featuring a 23% chance of sunshine. This figure aligns closely with the lower probabilities found in late summer months like August (26%) and July (33%), suggesting a gradual retreat from the sunnier days of summer. Interestingly, while April typically offers the best chance for sunlight at 48%, the tendency for cloudy weather returns as autumn approaches, with October and November both showing even lower chances of clear skies. Therefore, if you're planning a trip to Howth in September, it's wise to be prepared for a mix of weather rather than counting on sunny days.
As summer gracefully fades, September in Howth, Ireland, welcomes a transition marked by a significant shift in daylight duration, offering approximately 12 hours of daylight. This reduction follows the lengthy, sun-drenched days of June and July, which boast their peak at 16 hours. The month serves as a bridge, gently easing into autumn after the vibrancy of the summer months. October further decreases to 10 hours, hinting at the approaching winter, while November and December offer just 8 and 7 hours of light, respectively. This rhythmic ebb and flow of daylight not only shapes the daily routines of locals but also enriches the picturesque landscapes of Howth, inviting all to savor the beauty of the changing seasons.
In September, the winds in Howth, Ireland, whisper gently at an average speed of 4.4 m/s (10 mph), marking a transition into the mildness of autumn. This slight decrease from August's 4.6 m/s suggests a gradual calm as the year progresses, following the peak of summer breezes. Throughout the year, wind speeds fluctuate, peaking during the colder months, with January and October both recording 6.4 m/s. With each passing month, there’s a clear trend: as summer wanes, the winds soften, creating a serene atmosphere perfect for strolls along the stunning coastal cliffs. Yet, the return of brisk winds is just around the corner, reminding us that the vibrant weather of Howth is as changeable as the tides.
The weather in Howth 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 Howth and find detailed weather information for every month.
In September, the weather is generally milder, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 20°C (68°F), resulting in an average of 14°C (58°F). This month sees higher precipitation, with about 86 mm (3.4 in) falling over 15 days, and humidity levels are quite high at 86%. In contrast, January offers a chillier climate, with temperatures dipping to a minimum of 1°C (34°F) and reaching a maximum of 14°C (57°F), averaging around 7°C (45°F). There is less precipitation in January, totaling 68 mm (2.7 in) over 11 days, and humidity remains fairly consistent at 85%. For a detailed look at weather patterns during January, visit Howth weather in January.
In September, temperatures start to cool down from the summer, with minimums around 7°C (45°F) and maximums reaching up to 20°C (68°F). The average temperature sits at 14°C (58°F), accompanied by 86 mm (3.4 in) of precipitation over approximately 15 days. The humidity remains relatively high at 86%.
In contrast, February brings colder conditions, with minimum temperatures dropping to 1°C (34°F) and maximums capping at 13°C (56°F). The average temperature for the month is lower, at just 7°C (45°F), while precipitation levels are similar, with 85 mm (3.3 in) falling over 17 days. Interestingly, humidity in February also rests at a consistent 86%.
For a detailed forecast and more information about February weather specifically in Howth, visit Howth weather in February.
In comparing the weather of September and March, we see significant differences in temperature and conditions. September tends to be milder, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 20°C (68°F), while March can be much colder, with lows dipping to -2°C (29°F) and highs reaching only 14°C (57°F). Both months experience similar amounts of precipitation, with September recording 86 mm (3.4 in) over 15 days and March seeing slightly higher precipitation at 88 mm (3.5 in) across 14 days. Humidity remains consistent in both months at 86%. For more specific information about March weather, you can check Howth weather in March.
In September, the weather tends to be milder compared to April, with average temperatures ranging from a chilly 7°C (45°F) at night to a warmer 20°C (68°F) during the day. In contrast, April experiences cooler temperatures, with a minimum of 2°C (36°F) and a maximum of only 15°C (59°F). While September sees greater precipitation at 86 mm (3.4 in) over approximately 15 days, April has a relatively drier spell, receiving 43 mm (1.7 in) spread over about 10 days. Both months exhibit high humidity, around 86% in September and slightly lower at 85% in April, making for a consistently damp climate. For more specific details about the weather during this month, check out Howth weather in April.
September and May present contrasting weather patterns. In September, temperatures range from a minimum of 7°C (45°F) to a maximum of 20°C (68°F), with an average of 14°C (58°F). The month sees about 86 mm (3.4 in) of precipitation across 15 days, accompanied by high humidity at 86%. In comparison, May experiences cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 18°C (64°F), averaging 11°C (52°F). Precipitation is also lower in May, totaling 58 mm (2.3 in) over 11 days and with slightly less humidity at 83%. For a detailed overview, you can explore Howth weather in May.
In comparing the weather of September and June, both months exhibit similar average temperatures, with September ranging from a minimum of 7°C (45°F) to a maximum of 20°C (68°F) and June showing slightly higher minimums of 8°C (47°F) while holding the same maximum. While both months have the same average high of 20°C, September experiences slightly more precipitation at 86 mm (3.4 in) over 15 days compared to June's 76 mm (3.0 in) over 13 days. Humidity levels are also quite comparable, with September at 86% and June slightly lower at 85%. For a closer look at the specific weather conditions in June, you can visit Howth weather in June.
September and July exhibit distinct differences in weather patterns. In September, temperatures range from a minimum of 7°C (45°F) to a maximum of 20°C (68°F), with an average of 14°C (58°F), making it cooler than July. July typically sees slightly warmer temperatures, with lows of 10°C (51°F) and highs reaching up to 22°C (71°F), averaging around 16°C (61°F). Additionally, September experiences more precipitation, with 86 mm (3.4 in) of rainfall over 15 days, compared to July's 79 mm (3.1 in) over 13 days. Both months share high humidity levels of 86%, contributing to a rather moist atmosphere. For more details on July weather, you can visit Howth weather in July.
In comparing the weather of August and September, September tends to be cooler, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 20°C (68°F), while August showcases slightly warmer temperatures, with a minimum of 11°C (51°F) and the same maximum of 20°C (69°F). Both months experience significant rainfall, but August sees a bit more with 100 mm (3.9 in) spread over 16 days, compared to September's 86 mm (3.4 in) over 15 days. Humidity levels remain comparable, with September being slightly higher at 86%, compared to August's 85%. For a closer look at August's weather patterns, you can visit Howth weather in August.
In September, the weather generally ranges from a minimum of 7°C (45°F) to a maximum of 20°C (68°F), with an average temperature of 14°C (58°F). This month experiences a total precipitation of 86 mm (3.4 in) over 15 days, accompanied by a humidity level of 86%. Transitioning into October, temperatures dip slightly, with a minimum of 5°C (42°F) and a maximum of 18°C (65°F), bringing the average down to 12°C (54°F). Additionally, October sees an increase in precipitation to 103 mm (4.0 in) spread over 17 days, while humidity rises slightly to 87%. For more detailed insights, you can check Howth weather in October.
September tends to be warmer than November, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 20°C (68°F), while November experiences cooler temperatures, averaging between 3°C (38°F) and 15°C (59°F). Precipitation sees an increase from 86 mm (3.4 in) over 15 days in September to 123 mm (4.8 in) across 18 days in November, indicating a wetter month. Interestingly, the humidity remains consistent at 86% for both months, creating a generally damp atmosphere during this transitional period. For more detailed insights into November's weather, check out Howth weather in November.
September and December exhibit notable differences in weather patterns. September typically enjoys milder temperatures, with average highs around 20°C (68°F) and a minimum of 7°C (45°F), while December feels considerably cooler, with a maximum of only 13°C (57°F) and a minimum dropping to 2°C (36°F). Both months see similar precipitation days, with rain occurring on about 15 days, but December experiences slightly higher rainfall, totaling 106 mm (4.2 in) compared to September's 86 mm (3.4 in). Additionally, the humidity remains relatively high in September at 86%, tapering off slightly to 84% in December. For a closer look at the weather specifics in December, you can visit Howth weather in December.
September in Howth sees a notable transition in weather, offering a refreshing blend of mild temperatures and increased rainfall that sets it apart from the preceding summer months. With maximum highs reaching around 20°C (68°F) and average temperatures hovering at a comfortable 14°C (58°F), the month is ideal for those seeking a less intense climate. However, with approximately 86 mm (3.4 in) of rain spread over 15 days, September is considerably wetter than the drier, warmer snaps of summer. This increase in humidity, peaking at 86%, contributes to a more refreshing, albeit occasionally drizzly, atmosphere. As autumn approaches, the changing weather conditions provide a unique opportunity to experience Howth's scenic beauty in a softer light. For a deeper understanding of weather patterns in this charming coastal area, visit Howth Climate.