September Weather in Gweedore, Ireland

Last updated: March 17, 2025

In Gweedore, Ireland, September presents a charming albeit wet transition into autumn. With maximum temperatures reaching 21°C (70°F) and an average of 13°C (56°F), the weather is cool yet inviting. However, visitors should prepare for the frequent rain, as 148 mm (5.8 in) of precipitation falls over the course of 21 days, resulting in a humidity level of 87%. This mix of mild temperatures and moist conditions creates a lush landscape, making September an intriguing time to explore Gweedore's natural beauty.

September Temperature in Gweedore

As September unfolds in Gweedore, Ireland, a transition towards milder temperatures becomes evident. With minimums around 7°C (45°F) and maximums peaking at 21°C (70°F), this month strikes a pleasant balance between the warmth of summer and the crispness of autumn. The average temperature settles at a comfortable 13°C (56°F), creating perfect conditions for outdoor explorations and the stunning landscapes that this coastal gem has to offer. Notably, September marks the tail end of Gweedore's warm season, hinting at a gradual dip in temperatures in the months to follow, yet still inviting visitors to enjoy the beauty of the Irish landscape under the clarity of early autumn skies.

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

The chart illustrates September temperature patterns in Gweedore, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec444344475155585856524845
Data source: Temperature data for Gweedore generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Gweedore

September in Gweedore, Ireland, typically sees 148 mm (5.8 in) of precipitation, making it one of the wetter months of the year. With 21 rainy days, this month marks a continuation of the trend observed in August, where rainfall peaked at 177 mm (7.0 in) over 23 days. The overall decline in precipitation from the summer peaks indicates a transition into the autumn months, paving the way for October's even heavier downpour of 197 mm (7.8 in). As the weather shifts, Gweedore experiences a steady increase in both total rainfall and rainy days, signaling the arrival of the more tumultuous weather patterns typical of Irish fall.

September Precipitation Trends in Gweedore

The chart displays monthly precipitation patterns in Gweedore, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1281581386484112118177149197156191
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Gweedore

In Gweedore, Ireland, September marks a notable increase in humidity, reaching 87%, paving the way for a lush, atmospheric transition into autumn. This uptick follows a summer characterized by relatively high levels, where July and August maintain an average humidity of 86%. Interestingly, the humidity begins to creep up from the spring months, where it hovers around 83%-84%. As the year progresses, a consistent trend emerges: a steady rise in humidity during the latter part of the year culminates in November's peak at 88%. This natural rhythm not only enhances Gweedore's enchanting landscapes but also enriches its serene, coastal climate, captivating both residents and visitors alike.

September Average Humidity in Gweedore

This chart illustrates the average monthly humidity levels in Gweedore, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%83%84%83%84%86%86%87%87%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Gweedore

As summer transitions into autumn, September in Gweedore, Ireland showcases a moderate UV Index of 5, suggesting that while sun exposure is still enjoyable, precautions are wise. This index reflects a noticeable drop from August's high of 7, indicating shorter burn times of 30 minutes. Compared to the peak summer months of June and July, where the index soared to 8, September offers a more tempered sun experience. Despite this decrease, it's essential to stay mindful of UV exposure, especially for those engorging on the last rays of summer. For more detailed insights, visit the Gweedore UV Index.

Maximum UV Index Levels in Gweedore for September

The chart shows the monthly maximum UV Index (UVI) for Gweedore 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.
JanFebMarAprMayJunJulAugSepOctNovDec124568875321
Data source: Gweedore 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 Gweedore

Gweedore, Ireland experiences a remarkable evolution in daylight as the year progresses, with March kicking off the sunny season with 194 hours of sunshine. April nearly doubles that total with 313 hours, heralding the arrival of spring in full swing. May reaches a splendid peak at 400 hours, showcasing the region's vibrant outdoor appeal. However, as summer transitions into autumn, the hours begin to wane, with September still enjoying a respectable 279 hours of sunshine. This dip continues into October and November, as the cozy charm of Ireland sets in, with lighter days bringing a gentle close to the year. The contrasting seasonal highs and lows create a rhythm that beautifully encapsulates the essence of life in Gweedore, where each month offers its own unique slice of Irish sunshine.

Monthly Sunshine Duration in Gweedore: September Highlighted

The September sunshine duration represents the total number of hours Gweedore 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.
JanFebMarAprMayJunJulAugSepOctNovDec68h140h194h313h400h376h382h347h279h223h112h80h
Data source: Gweedore September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Gweedore During September

As September rolls into Gweedore, the chances of basking in sunny weather are relatively modest, with only a 17% likelihood of sunshine. This slight uptick from the summer months, where July peaks at 21%, suggests that while the days are beginning to shorten, there’s still a glimmer of light remaining from the warmer season. However, the chances for sun start to dwindle as autumn approaches, with October offering merely a 16% chance. Overall, while September may not boast the sunniest weather, it still holds a subtle charm as summer transitions into fall, making every ray of sunshine a treasured moment.

Percentage of Sunny Days in September in Gweedore

The chart illustrates the percentage of sunny days in Gweedore 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 Gweedore experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%24%13%39%35%16%21%19%17%17%15%12%
Data source: Gweedore September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Gweedore in September

As September unfolds in Gweedore, Ireland, the days gradually shorten, offering about 12 hours of daylight. This transition marks a noticeable shift from the lengthy, sun-soaked days of summer, where June dazzles with a remarkable 17 hours and August still boasts a generous 14 hours. As the vibrant hues of autumn begin to paint the landscape, the daylight diminishes further, paving the way for the cozy embrace of October’s 10 hours and November’s diminishing 8 hours. This rhythm of changing light not only guides daily activities but also enriches the scenic beauty of Gweedore, as nature gears up for the tranquil months ahead.

Average Daylight Hours in Gweedore for September

The chart illustrates the variation in daylight duration in Gweedore throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 50m9h 40m11h 53m14h 10m16h 11m17h 16m16h 41m14h 51m12h 39m10h 24m8h 21m7h 14m
Data source: Gweedore daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Gweedore

In Gweedore, Ireland, the winds of September offer a gentle reprieve from the stronger gusts of summer, with an average speed of 5.4 m/s (12 mph). This marks a slight uptick from the quieter breezes of July and August, which lingered at 3.6 m/s (8 mph) and 4.5 m/s (10 mph) respectively. As autumn approaches, wind speeds begin to pick up again, foreshadowing the sharper winds of October, which rise to 7.1 m/s (16 mph). This trend reflects the shifting seasons, with September serving as a transitional month where the serene whispers of early autumn blend with the increasing vigor of October's gusts, creating a uniquely dynamic atmosphere in this picturesque coastal region.

Average September Wind Speed in Gweedore

The chart displays monthly wind speed patterns in Gweedore, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.48.67.15.25.35.73.64.55.4 m/s7.18.27.5
Data source: Gweedore September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Gweedore Compares to Other Months

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

In comparing the weather of September and January, it's evident that September enjoys more moderate temperatures, with an average of 13°C (56°F) and highs reaching up to 21°C (70°F), while January is significantly colder, averaging only 7°C (44°F) and peaking at 13°C (56°F). Precipitation levels are fairly similar, with September receiving 148 mm (5.8 in) over 21 days, compared to January's 128 mm (5.1 in) across 18 days. Humidity is slightly higher in September at 87%, while January maintains a more manageable 84%. For detailed insights about January weather, check out Gweedore weather in January.

September and February present distinct weather patterns. In September, temperatures range from a minimum of 7°C (45°F) to a maximum of 21°C (70°F), with an average of 13°C (56°F). The month sees considerable rainfall, accumulating 148 mm (5.8 in) over 21 days, accompanied by high humidity levels at 87%. In contrast, February tends to be cooler, with temperatures hovering between 0°C (32°F) and 14°C (57°F), and an average of 6°C (44°F). Although February records slightly higher precipitation at 158 mm (6.2 in) over 18 days, the humidity is somewhat lower at 84%. For more detailed insights, you can refer to Gweedore weather in February.

In September, the weather is generally milder with average temperatures ranging from 7°C (45°F) to a maximum of 21°C (70°F), whereas March sees colder conditions, with temperatures from a minimum of -2°C (28°F) to a maximum of 14°C (58°F). Both months experience a significant amount of rainfall, with September totaling 148 mm (5.8 in) over 21 days and March slightly less at 137 mm (5.4 in) over 20 days. Humidity levels remain high in both months, with September at 87% and March slightly lower at 83%. For a closer look at the specific weather conditions in March, check out this link: Gweedore weather in March.

When comparing the weather in September to that of April, notable differences emerge. September tends to be warmer, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 21°C (70°F), while April sees cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 18°C (64°F). Additionally, September is wetter, receiving 148 mm (5.8 in) of precipitation over 21 days, compared to April's relatively drier conditions with 64 mm (2.5 in) of precipitation over 15 days. Humidity levels are quite similar, with September at 87% and April slightly lower at 84%. For a closer look at what to expect in April, check out Gweedore weather in April.

September and May exhibit notable differences in weather patterns. September tends to be slightly warmer, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 21°C (70°F), compared to May, which features a cooler range of 4°C (39°F) to 20°C (68°F). While both months experience significant rainfall, September averages 148 mm (5.8 in) over 21 days, making it wetter than May, where precipitation totals 84 mm (3.3 in) over 15 days. Additionally, September has a higher humidity level at 87%, slightly exceeding May's 83%. For a closer look at the weather specifics in May, visit Gweedore weather in May.

September weather tends to be slightly cooler than June, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 21°C (70°F), while June has temperatures from a minimum of 8°C (46°F) to a maximum of 22°C (72°F). Although both months have similar average temperatures, September experiences more precipitation, measuring 148 mm (5.8 in) over 21 days compared to June's 112 mm (4.4 in) over 17 days. The humidity is also marginally higher in September at 87%, compared to June's 83%. For more detailed information about June weather, you can check Gweedore weather in June.

In comparing the weather between September and July, September tends to be cooler, with a minimum temperature of 7°C (45°F) and an average of 13°C (56°F), while July's temperatures are slightly warmer, starting at a minimum of 10°C (50°F) and averaging 14°C (58°F). Additionally, July records a maximum temperature of 23°C (74°F), compared to September's high of 21°C (70°F). Precipitation is more pronounced in September, with 148 mm (5.8 in) over 21 days, whereas July experiences less rain at 118 mm (4.6 in) across 18 days. Both months demonstrate similar humidity levels, with September at 87% and July at 86%. For more detailed insights on July weather, check out Gweedore weather in July.

In August, the weather tends to be slightly warmer with an average temperature of 14°C (58°F) compared to September's average of 13°C (56°F). While both months experience significant rainfall, August sees a higher total of 177 mm (7.0 in) over 23 days, compared to September's 148 mm (5.8 in) over 21 days. Humidity levels remain comparable, at 86% in August and 87% in September. Thus, while both months are relatively cool and wet, August is typically a bit milder and wetter. For more details, check Gweedore weather in August.

September and October weather shows a transition to cooler conditions as autumn sets in. September experiences a minimum temperature of 7°C (45°F) and an average of 13°C (56°F), with maximums reaching 21°C (70°F). In contrast, October sees slightly lower temperatures, with a minimum of 5°C (40°F) and an average of 11°C (52°F), peaking at 18°C (65°F). Additionally, October tends to be wetter, receiving 197 mm (7.8 in) of precipitation over 26 days, compared to September's 148 mm (5.8 in) over 21 days. Humidity remains consistent at 87% for both months. For more details, check out the Gweedore weather in October.

In September, the weather tends to be milder, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 21°C (70°F) and an average of 13°C (56°F). This month experiences significant rainfall, with about 148 mm (5.8 inches) falling over 21 days, paired with a high humidity of 87%.

Contrastingly, November is considerably cooler, with temperatures dropping to a minimum of 3°C (37°F) and a maximum of 14°C (58°F), averaging around 9°C (48°F). The rainfall increases slightly to 156 mm (6.1 inches) stretched over 22 days, maintaining a similar humidity level of 88%.

For more detailed insights into the weather during this month, you can explore Gweedore weather in November.

September and December present notable contrasts in weather patterns. In September, average temperatures range from a minimum of 7°C (45°F) to a maximum of 21°C (70°F), with an overall average of 13°C (56°F). This month also sees significant rainfall, totaling 148 mm (5.8 in) over 21 days, accompanied by high humidity levels at 87%. In contrast, December experiences much colder temperatures, with a minimum of 1°C (33°F) and a maximum of 12°C (54°F), yielding an average of 7°C (46°F). Precipitation rises to 191 mm (7.5 in) across 24 days, and while humidity slightly decreases to 84%, it still reflects the dampness of winter. For more detailed information, you can check Gweedore weather in December.

Compare Gweedore's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Gweedore

As September unfolds in Gweedore, the transition from summer to autumn becomes palpable, marked by cooler temperatures and increased rainfall. With an average temperature settling around 13°C (56°F), the warmth of July and August gives way to brisker days and cooler evenings. This month also sees a notable uptick in precipitation, with rainfall occurring on nearly two-thirds of the days, creating a distinctly wetter atmosphere compared to the drier summer months. The high humidity, hovering around 87%, adds to the feeling of lushness in the landscape, as nature prepares for the upcoming change of seasons. For a comprehensive overview of the climate trends throughout the year, visit Gweedore Climate.