September Weather in Schull, Ireland

Last updated: March 17, 2025

In Schull, Ireland, September brings a blend of mild temperatures and refreshing rainfall. With a maximum temperature reaching 25°C (77°F), the days invite outdoor exploration, while the average of 14°C (58°F) creates a comfortable atmosphere for both locals and visitors. However, as autumn approaches, temperatures can dip to a minimum of 4°C (40°F), reminding everyone of the seasonal change. Throughout the month, 91 mm (3.6 in) of rainfall is expected over 13 days, contributing to the region's renowned lush landscapes. With humidity levels averaging 85%, September in Schull offers a unique weather experience that showcases the charm and beauty of this coastal town.

September Temperature in Schull

September in Schull, Ireland, marks a delightful transition into autumn, with temperatures exhibiting a comfortable range. The month starts with a minimum of 4°C (40°F), gradually warming to an average of 14°C (58°F) and peaking at a pleasant 25°C (77°F). Compared to the summer's high point, September's temperatures gently dip while still maintaining a mild feel, inviting outdoor activities. As the warmer days of late summer fade, this month also serves as a reminder of the cooler temperatures to come, but for now, the lingering warmth makes September a lovely time to explore the scenic beauty of this charming coastal town.

September Weather in Schull: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Schull, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec464646495358616057534947
Data source: Temperature data for Schull generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Schull

September in Schull, Ireland, embraces a moderate precipitation pattern with an average of 91 mm (3.6 in) spread over 13 days. This marks a slight uptick from the drier summer months of June and July, which recorded just 67 mm (2.7 in) and 69 mm (2.7 in) respectively. As the transition into autumn begins, September's rainfall serves as a precursor to the wetter months ahead, with October typically bringing even heavier showers at 141 mm (5.6 in). Overall, September strikes a balance, providing a refreshing change and hinting at the lush greenery that follows, characteristic of Ireland’s coastal climate.

September Precipitation Trends in Schull

The chart displays monthly precipitation patterns in Schull, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec831431067976676910591141108148
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Schull

In September, Schull, Ireland, experiences a humidity level of 85%, maintaining the slightly elevated moisture typical of late summer. This trend of higher humidity begins in late spring and persists through the summer months, reaching its peak in October at 86%. While September shares the same level as July and June, it heralds the transition to autumn, where humidity gradually declines towards winter's chill. Notably, throughout the year, humidity remains fairly consistent, fluctuating between 83% and 86%, creating a mild and damp atmosphere that defines Schull's maritime climate.

September Average Humidity in Schull

This chart illustrates the average monthly humidity levels in Schull, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec83%85%84%84%84%85%85%84%85%86%84%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Schull

In September, Schull, Ireland experiences a moderate UV Index of 5, indicating a cautious approach to sun exposure is advisable, with a burn time of around 30 minutes for fair-skinned individuals. This marks a slight decline from the peak of summer, yet it's a reminder that even as the days grow shorter, sun protection remains important. Following the very high UV levels of July and June, the transitional drop suggests the sun's intensity is waning, but awareness is still key to enjoying the outdoors safely. As we move into the fall, it's wise to keep track of the UV Index trends to ensure you stay protected. For more detailed information, check out Schull UV Index.

Maximum UV Index Levels in Schull for September

The chart shows the monthly maximum UV Index (UVI) for Schull in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124678875421
Data source: Schull September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Schull

As summer gracefully transitions to autumn, September in Schull, Ireland offers a delightful blend of warmth and lingering sunshine, with an impressive 296 hours of bright daylight. While this marks a decrease from the sun-drenched heights of May and July, it still reflects a vibrant conclusion to the shining months. The steady climb from 83 hours in January to a peak of 390 hours in May showcases the region's burgeoning daylight, allowing residents and visitors alike to revel in the rich outdoor experiences of summer. As the days grow shorter into October with 227 hours, September stands out as a serene moment, inviting lingering strolls along the picturesque shores before winter's chill sets in.

Monthly Sunshine Duration in Schull: September Highlighted

The September sunshine duration represents the total number of hours Schull experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec83h136h195h319h390h378h387h352h296h227h136h96h
Data source: Schull September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Schull During September

As summer transitions into autumn, September in Schull, Ireland, brings a notably lower likelihood of sunny days, with just a 21% chance of sunshine. This decline is part of a broader trend observed throughout the year, where the likelihood of sunny weather fluctuates significantly. With April holding the highest probability at 44%, the summer months of June, July, and August also struggle to reach their potential, averaging around 25-33% for sunny days. Following September, the chances remain quite low, dipping further into October and November. Thus, if you're planning a trip to Schull this September, be prepared for a mix of weather and keep those umbrellas handy!

Percentage of Sunny Days in September in Schull

The chart illustrates the percentage of sunny days in Schull throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Schull experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec35%24%23%44%30%25%33%32%21%22%31%19%
Data source: Schull September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Schull in September

As September unfolds in Schull, Ireland, the transition from summer to autumn becomes evident, reflected in the day's diminishing daylight duration. While the longer days of summer peak in June and July with an impressive 16 hours of sunlight, September sees a gentle decline to 12 hours. This month serves as a bridge, gracefully easing us from the bright 15 hours of May and the warm embrace of August's 14 hours into the shorter, cozier days of autumn ahead. It's a time when the landscape begins to shift, inviting a blend of vibrant colors as nature prepares for the cooler months, reminding us of the cyclical beauty of light throughout the year. As October approaches with just 10 hours of daylight, the rhythm of life in Schull subtly adapts, embracing the tranquil charm of the changing season.

Average Daylight Hours in Schull for September

The chart illustrates the variation in daylight duration in Schull throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 24m9h 58m11h 55m13h 54m15h 38m16h 32m16h 3m14h 30m12h 34m10h 36m8h 50m7h 53m
Data source: Schull daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Schull

As summer gracefully gives way to autumn, September in Schull, Ireland showcases a steady and gentle breeze with an average wind speed of 4.5 m/s (10 mph). This consistent wind pattern mirrors the tranquil atmosphere typical for this time of year, marking a departure from the heavier winds of early months like February and December. While winter brings more brisk conditions, with winds reaching 6.5 m/s (15 mph), September offers a pleasant balance—the quieter winds invite outdoor exploration and reflect the serene beauty of the coastal landscape. Overall, this month serves as a transition into the changing seasons, where the lingering warmth of summer is gently caressed by the incoming chill of autumn.

Average September Wind Speed in Schull

The chart displays monthly wind speed patterns in Schull, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.27.45.64.55.34.34.14.54.5 m/s5.44.76.5
Data source: Schull September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Schull Compares to Other Months

The weather in Schull 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 Schull and find detailed weather information for every month.

September and January present contrasting weather conditions. In September, temperatures range from a mild 4°C (40°F) to a pleasant 25°C (77°F), with an average of 14°C (58°F). The month experiences significant rainfall, totaling 91 mm (3.6 in) over 13 days, combined with high humidity at 85%. In contrast, January features colder temperatures, with lows dropping to -2°C (28°F) and a maximum of 14°C (57°F), leading to an average of 8°C (46°F). Although precipitation is slightly lower at 83 mm (3.3 in) over the same number of days, humidity remains relatively high at 83%. For more detailed information on January weather, check out Schull weather in January.

September and February showcase notable differences in weather patterns. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 25°C (77°F), with an average of 14°C (58°F), making it generally warmer than February, where temperatures only span from 0°C (31°F) to 13°C (56°F) and average around 8°C (46°F). Precipitation is also more prevalent in February, with 143 mm (5.6 in) falling over 18 days compared to September's 91 mm (3.6 in) over 13 days. Both months share a high humidity level of 85%, but the overall cooler and wetter conditions in February can make it feel quite different. For more specifics on February weather, check out Schull weather in February.

In September, the weather typically features a comfortable average temperature of 14°C (58°F), with highs reaching up to 25°C (77°F), while the minimum temperature rarely dips below 4°C (40°F). This month experiences around 91 mm (3.6 in) of precipitation over approximately 13 days, and humidity stays relatively high at 85%. In contrast, March brings cooler conditions, with an average temperature of 8°C (46°F), highs peaking at 16°C (61°F), and lows dropping to -4°C (24°F). Rainfall is slightly higher in March, totaling around 106 mm (4.2 in) across about 18 days, alongside a slightly lower humidity of 84%. For more detailed insights, you can check out Schull weather in March.

In comparing the weather of September and April, we see a notable difference in temperature and overall climate conditions. September tends to be warmer, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 25°C (77°F), while April's temperatures fluctuate between 0°C (32°F) and 17°C (62°F). Precipitation levels are somewhat similar, with September receiving 91 mm (3.6 in) over 13 days and April seeing slightly less at 78 mm (3.1 in) across 11 days. Humidity levels are comparable, with September at 85% and April slightly lower at 84%. For more details on April weather specifically, you can check out Schull weather in April.

In comparing the weather of September and May, we see that September is generally warmer, with average temperatures reaching 14°C (58°F) compared to May's 12°C (53°F). September has a maximum temperature of 25°C (77°F), which surpasses May's highest of 22°C (72°F). However, both months experience a similar amount of precipitation, with September receiving 91 mm (3.6 in) and May slightly less at 75 mm (3.0 in), and both have rain on about 13 days. Humidity levels are also comparable, with September at 85% and May slightly lower at 84%. If you're interested in more detailed weather information for May, check out Schull weather in May.

In comparing the weather between September and June, we see some notable differences. September typically experiences a minimum temperature of 4°C (40°F) and can reach up to 25°C (77°F), while June has slightly warmer temperatures, with a minimum of 6°C (44°F) and a maximum of 27°C (81°F). Interestingly, both months have an average temperature of 14°C (58°F). However, September tends to be wetter, with 91 mm (3.6 in) of precipitation over 13 days, compared to June's 67 mm (2.7 in) across 15 days. Both months also share the same humidity level of 85%, making them relatively moist periods of the year. For more detailed information, you can refer to Schull weather in June.

When comparing the weather in September and July, it’s clear that July tends to be slightly warmer overall. In July, the minimum temperature is 8°C, averaging 16°C, and peaking at 27°C. In contrast, September sees cooler temperatures, with a minimum of 4°C, an average of 14°C, and a maximum of 25°C. While both months experience 13 days of precipitation, July has less rainfall at 69 mm compared to September's 91 mm, indicating a wetter period as summer transitions into autumn. Humidity remains consistent in both months at 85%. For more detailed insights, you can check out the Schull weather in July.

September weather tends to be cooler than August, with average temperatures dropping from 15°C (60°F) in August to 14°C (58°F) in September. The minimum temperatures also decline, with September starting at 4°C (40°F) compared to 8°C (46°F) in August. Precipitation is slightly lower in September at 91 mm (3.6 in) over 13 days, compared to August's 105 mm (4.1 in) over 16 days, indicating September might have slightly less rain overall. Humidity remains relatively stable between the two months, with September at 85% and August at 84%. For more detailed insights, you can check Schull weather in August.

September and October exhibit noticeable changes in weather patterns. In September, the temperatures range from a minimum of 4°C (40°F) to a maximum of 25°C (77°F), with an average of 14°C (58°F). The month experiences about 91 mm (3.6 in) of precipitation over 13 days, along with a humidity level of 85%. In contrast, October sees cooler temperatures, with a minimum of 2°C (36°F), an average of 12°C (53°F), and a maximum of 18°C (66°F). Additionally, this month has increased rainfall, totaling 141 mm (5.6 in) across 18 days, and humidity rises slightly to 86%. For a more detailed view of October weather, you can check Schull weather in October.

In September, temperatures tend to be milder, ranging from a minimum of 4°C (40°F) to a comfortable maximum of 25°C (77°F), with an average of 14°C (58°F). The month experiences 91 mm (3.6 in) of precipitation over about 13 days, along with a high humidity level of 85%. In contrast, November brings cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 15°C (60°F), averaging at 9°C (49°F). Precipitation increases slightly to 108 mm (4.3 in), spread across 15 days, while humidity remains relatively constant at 84%. For more details, you can check Schull weather in November.

In September, the weather is marked by a mild average temperature of 14°C (58°F) and can peak at a comfortable 25°C (77°F), making it ideal for outdoor activities. However, it also experiences substantial precipitation, with around 91 mm (3.6 in) falling over 13 days, contributing to a relatively high humidity level of 85%. In contrast, December brings a significant drop in temperatures, with an average of 8°C (47°F) and maximums reaching only 14°C (57°F). The month is wetter, with precipitation totaling 148 mm (5.8 in) across 20 days, but humidity remains lower at 83%. For more detailed insights on December weather, you can visit Schull weather in December.

Compare Schull's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Schull

In September, Schull experiences a delightful transition as summer gives way to autumn, characterized by mild temperatures and an increase in rainfall. With an average temperature of 14°C, it feels pleasantly cool compared to the warmer months, while the uptick in humidity at 85% adds to the refreshing atmosphere. However, with about 13 days of precipitation totaling 91 mm, it’s wise to keep an umbrella handy when enjoying the mesmerizing landscapes. This shift in weather not only breathes new life into the scenery but also marks a perfect time for visitors seeking a peaceful retreat. To explore more about conditions throughout the year, check out Schull Climate.