Last updated: March 17, 2025
In September, the charming village of Straffan, Ireland experiences a delightful mix of temperatures, with maximums reaching 24°C (76°F) and a comfortable average of 13°C (56°F). The month can be quite variable, dropping to a refreshing minimum of 2°C (35°F) during cooler nights. With a total precipitation of 68 mm (2.7 in) across 13 rainy days, this period remains lush and green, contributing to the region's stunning landscapes. The humidity level sits at 86%, enhancing the freshness of the air and offering a quintessential Irish feel as autumn begins to set in. Whether you’re exploring the outdoors or enjoying cozy indoor activities, September in Straffan has something for everyone.
In September, Straffan, Ireland, experiences a delightful transition into autumn, with temperatures showing a gentle decline from summer's warmth. The month typically starts with a minimum of 2°C (35°F) and peaks at a pleasant 24°C (76°F). The average temperature settles around 13°C (56°F), offering a comfortable climate for outdoor activities and scenic strolls. This shift is marked by a notable drop from the sultry summer highs, yet still retains an inviting warmth, as the crisp air hints at the cooler months ahead. With bright skies often lingering, September provides a charming backdrop for enjoying the lush Irish landscape before autumn fully sets in.
September in Straffan, Ireland, experiences an average precipitation of 68 mm (2.7 in) over approximately 13 days, marking a return to more moderate rainfall following the wetter months of July and August. This decline from August's 94 mm (3.7 in) suggests a gradual transition towards autumn, as the lush greenery of summer gives way to the crispness of fall. Despite this slight decrease, September maintains a notable balance in weather, offering a mix of sunny spells amid scattered showers, which are typical for the changing season. As the year progresses, the impending months promise higher precipitation again, indicating that the lush landscapes of Ireland thrive on this cyclical weather pattern.
In Straffan, Ireland, the month of September sees a notable humidity level of 86%, mirroring the trend of the previous summer months. Throughout the year, humidity remains relatively high, with January kicking off at 85% and peaking at 87% in October, showcasing a slight upward trajectory as autumn approaches. While most months hover between 83% and 86%, September stands out as a continuation of the humid conditions established during the warmer months, suggesting a lingering summer ambiance before the cooler, drier weather of fall sets in. This pattern highlights Straffan’s reputation for consistent moisture in the air, creating a lush environment throughout the year.
In September, the UV Index in Straffan, Ireland, decreases to 5, signaling a moderate risk of harm from unprotected sun exposure. With a burn time of 30 minutes, it's a reminder that while summer is winding down, caution is still warranted. This month's UV levels mirror those of April, highlighting a trend of rising sun intensity as spring transitions into autumn. With July and June peaking at 8, the significant drop in UV exposure underscores a shift toward safer outdoor activities. Embrace the autumn sun while staying mindful of skin protection—check out the full details at Straffan UV Index.
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As the calendar turns to September, Straffan, Ireland, continues to bask in the warm glow of summer's end, recording an impressive 294 hours of sunshine. This sunny month represents a notable contrast to the earlier winter months, beginning with just 83 hours in January and gradually climbing through the year. Notably, from April's 311 hours to the peak of May's 391 hours, the sunshine trend reaches a delightful crescendo by mid-summer, before gracefully tapering off in the following months. While September does see a decline from the sun-soaked heights of summer, it still retains more than enough brightness to enjoy the lingering warmth, bridging the gap into the cooler autumn days ahead. With the promise of vibrant fall colors, September serves as a farewell salute to summer, reminding us of nature's cyclical beauty.
In Straffan, Ireland, the likelihood of sunny weather takes a notable dip in September, with chances falling to a mere 19%. This marks a significant shift from the more promising conditions of April and May, which boast sunny probabilities of 43% and 31%, respectively. As summer comes to a close, the transition into autumn sees a gradual decline in sunlight, reflected in the previous months of July and August, where sunny weather chances lingered around 29% and 24%. Consequently, visitors should prepare for a mix of overcast skies and sporadic sunshine as they enjoy early autumn in this charming Irish town.
In September, Straffan, Ireland, experiences a notable shift as daylight begins to wane, offering about 12 hours of light each day. This month serves as a transitional period, bridging the long, sunlit days of summer—boasting 16 hours in June and July—to the shorter, cozier days of autumn. Following August’s gradual decline to 14 hours, September presents a more pronounced reduction, reflecting nature’s inevitable progression towards winter. As we embrace this change, the warmth of summer gives way to the crisp air of fall, inviting evenings filled with rich hues and earlier sunsets.
September in Straffan, Ireland, welcomes a gentle breeze with an average wind speed of 3.1 m/s (7 mph), slightly lower than the preceding months. This transition into autumn marks a shift from the summer's mild gusts, particularly notable in July when winds calmed to 2.6 m/s (6 mph). As the year progresses, wind speeds begin to rise again in October, reflecting the overall pattern of increasing breeziness as winter approaches. The autumn whispers of September serve as a prelude to the brisker winds that will soon sweep through the landscape, inviting a contemplative spirit as the seasons change.
The weather in Straffan 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 Straffan and find detailed weather information for every month.
September and January present contrasting weather conditions. In September, temperatures range from a low of 2°C (35°F) to a comfortable high of 24°C (76°F), with an average of 13°C (56°F). This month experiences 68 mm (2.7 in) of precipitation over 13 days, accompanied by high humidity levels at 86%. In contrast, January sees colder temperatures, with a minimum of -5°C (24°F), an average of 5°C (42°F), and a maximum of 13°C (56°F). Precipitation is slightly lower at 55 mm (2.2 in) over 10 days, and humidity remains comparably high at 85%. For more details on January weather, you can visit Straffan weather in January.
In September, temperatures generally range from a minimum of 2°C (35°F) to a maximum of 24°C (76°F), with an average of 13°C (56°F). The month enjoys around 68 mm (2.7 in) of precipitation over 13 days, while maintaining a high humidity level of 86%. In contrast, February experiences cooler temperatures, with a minimum of -3°C (27°F), an average of 6°C (43°F), and a maximum of 16°C (60°F). Precipitation increases slightly to 79 mm (3.1 in) across 15 days, but the humidity remains steady at 86%. The stark difference in temperatures highlights how September offers milder conditions compared to the colder spells of February. For more detailed information on the February weather specifics, visit Straffan weather in February.
September and March present contrasting weather patterns. In September, temperatures range from a minimum of 2°C (35°F) to a pleasant average of 13°C (56°F), peaking at 24°C (76°F). The month sees around 68 mm (2.7 in) of precipitation over 13 days, with humidity consistently high at 86%. In contrast, March has colder temperatures, with a minimum of -6°C (22°F), an average of 7°C (44°F), and a maximum of 17°C (63°F). The precipitation increases slightly to 81 mm (3.2 in) across 16 days, while humidity remains at 86%. For a detailed overview of March weather, you can check Straffan weather in March.
In comparing the weather between September and April, we see notable differences. September boasts a milder average temperature of 13°C (56°F) with highs reaching 24°C (76°F), while April's average temperature is cooler at 8°C (47°F), peaking at 21°C (69°F). Both months experience relatively high humidity, with September slightly higher at 86% compared to April’s 85%. Precipitation levels also differ, as September receives 68 mm (2.7 inches) of rain over 13 days, while April has a bit less at 51 mm (2.0 inches) spread over 11 days. For a closer look at April's weather specifics, you might explore Straffan weather in April.
In comparing the weather between September and May, it is notable that September tends to be warmer, with average temperatures ranging from a minimum of 2°C (35°F) to a maximum of 24°C (76°F), while May sees slightly cooler conditions with minimum temperatures dipping to -1°C (30°F) and a maximum of 23°C (74°F). Both months experience similar levels of precipitation, with September receiving 68 mm (2.7 in) and May slightly more at 72 mm (2.8 in), each spread over approximately 13 days. Humidity levels are also relatively high in both months, though September is slightly more humid at 86% compared to May's 83%. For more detailed insights about May's weather, you can check out Straffan weather in May.
In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 24°C (76°F), with an average of 13°C (56°F). The month sees around 68 mm (2.7 in) of precipitation spread over 13 days and maintains a high humidity of 86%. In comparison, June offers slightly warmer temperatures, with a minimum of 5°C (41°F) and a maximum of 27°C (80°F), resulting in an average temperature of 14°C (58°F). June experiences a similar amount of precipitation at 73 mm (2.9 in), occurring over 14 days, but with slightly lower humidity at 85%. Overall, June tends to be warmer and slightly wetter than September. For more detailed information, check out Straffan weather in June.
In comparing the weather between September and July, it is evident that July tends to be warmer with average temperatures reaching 16°C (61°F) compared to September's average of 13°C (56°F). July also experiences higher maximum temperatures, peaking at 27°C (81°F), while September's maximum is a milder 24°C (76°F). However, both months see similar precipitation levels, with July recording 77 mm (3.0 in) and September slightly lower at 68 mm (2.7 in), and both months experiencing rain on about 13 days. Humidity remains constant at 86% for both months, contributing to a humid feel throughout. For more detailed information, check out Straffan weather in July.
In comparing the weather of September and August, September typically experiences cooler temperatures, with a minimum of 2°C (35°F) and an average of 13°C (56°F), compared to August's minimum of 6°C (43°F) and average of 15°C (60°F). Both months share a maximum temperature of around 24°C (75-76°F). However, September sees a slight increase in precipitation, receiving 68 mm (2.7 in) over 13 days, whereas August has 94 mm (3.7 in) over 17 days. Humidity levels are relatively similar, with September at 86% and August at 85%. For more details, you can visit Straffan weather in August.
In comparing the weather between September and October, we see a notable shift as temperatures decrease and precipitation slightly increases. September boasts a minimum temperature of 2°C (35°F) and an average of 13°C (56°F), with maximums reaching up to 24°C (76°F). In contrast, October sees cooler temperatures, with a minimum of 0°C (32°F) and an average of 10°C (51°F), peaking at a maximum of 19°C (67°F). While both months experience rainfall over 13 days, October has a higher total precipitation of 82 mm (3.2 in) compared to September's 68 mm (2.7 in), reflecting the seasonal transition. Both months also maintain high humidity levels, with October slightly edging out at 87% compared to September's 86%. For those looking for more detailed insights into October weather, you can visit Straffan weather in October.
September and November exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 24°C (76°F), with an average of 13°C (56°F). The month typically experiences about 68 mm (2.7 in) of precipitation over 13 days, all while maintaining a consistent humidity level of 86%. In contrast, November is cooler, featuring temperatures that drop to a low of -1°C (30°F) and peak at 15°C (59°F), averaging around 7°C (46°F). Rainfall increases to 88 mm (3.5 in) over 14 days, matching September's humidity at 86%. For more detailed information on November weather, check out Straffan weather in November.
In comparison to September, December experiences significantly cooler temperatures, with average highs of only 13°C (56°F) compared to September's max of 24°C (76°F). While September typically sees mild weather and higher temperatures, its minimum of 2°C (35°F) is warmer than December's chilly minimum of -4°C (25°F). Precipitation also increases slightly in December to 90 mm (3.5 in), with rain occurring on about 15 days, which is a bit more than September's 68 mm (2.7 in) over 13 days. Interestingly, the humidity remains relatively stable, with September at 86% and December slightly lower at 84%. For more detailed insights on December weather, check out Straffan weather in December.
September in Straffan signals the transition from the warmth of summer to the cooler embrace of autumn, characterized by a noticeable drop in temperatures and increased rainfall. With an average temperature resting comfortably at 13°C (56°F), days can still flirt with the warmth of 24°C (76°F), yet cool nights remind us that fall is approaching. The month sees significant humidity at 86%, contributing to a damp atmosphere, as rain graces the region on 13 days, accumulating around 68 mm (2.7 in) of precipitation. This shift sets September apart from its warmer predecessors, making it a time for cozy sweaters and welcoming the seasonal changes. For more detailed information, check out Straffan Climate.