September Weather in Dunmore East, Ireland

Last updated: March 17, 2025

September in Dunmore East, Ireland presents a delightful mix of mild temperatures and refreshing coastal breezes. With a maximum temperature reaching 21°C (70°F) and an average of 14°C (58°F), this coastal gem offers a comfortable retreat as summer transitions to autumn. However, visitors should prepare for some rainfall, as the region experiences 74 mm (2.9 in) of precipitation over 12 days, contributing to a humidity level of 86%. Embrace the charm of the Irish coastline, where the lush scenery and rolling waves create a picturesque backdrop for early autumn adventures.

September Temperature in Dunmore East

As September unfolds in Dunmore East, Ireland, temperatures begin to cool slightly from the warmth of summer, yet still offer a mild maritime climate. The minimum temperature averages around 6°C (42°F), providing a refreshing backdrop for outdoor activities. The average temperature settles at 14°C (58°F), making it a pleasant time to explore this picturesque coastal village. Maximum temperatures hover around 21°C (70°F), reminiscent of late summer, allowing for those final sun-soaked days. Overall, September marks a transitional month where the lingering warmth meets the crispness of autumn, inviting visitors to enjoy the stunning landscapes and activities before the chill of winter sets in.

September Weather in Dunmore East: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Dunmore East, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec454545485257616057534846
Data source: Temperature data for Dunmore East 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 Dunmore East

In September, Dunmore East experiences a moderate level of precipitation, with a total of 74 mm (2.9 in) falling over 12 days. This amount is slightly lower than the preceding month's 93 mm (3.7 in), marking a transition as summer gives way to autumn. The rainfall in September reflects a typical shift, as the region starts to prepare for the wetter months ahead, particularly October, which is projected to see a significant increase in precipitation at 110 mm (4.3 in). Observing this trend, it's evident that September serves as a bridge between the drier summer months and the more rain-laden fall, hinting at what residents can expect as they move deeper into the season.

September Precipitation Trends in Dunmore East

The chart displays monthly precipitation patterns in Dunmore East, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6110789676171629374110125126
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dunmore East

In Dunmore East, Ireland, September brings a consistent blanket of high humidity, measuring at 86%—a trend that has lingered throughout the late summer months. As the warmth of August transitions into the crispness of autumn, this steady humidity level reflects the coastal area's characteristic moist climate. Notably, the humidity remains stable, fluctuating only slightly through the year, hovering around the mid-80s—an ideal ambiance for enjoying the lush landscapes and vibrant coastal surroundings. As October approaches, a slight increase to 87% is anticipated, subtly signaling the onset of fall, yet September stands out as a month where the richness of summer's humidity still prevails.

September Average Humidity in Dunmore East

This chart illustrates the average monthly humidity levels in Dunmore East, 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.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%85%83%85%86%85%86%87%87%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dunmore East

As September rolls into Dunmore East, the UV Index settles at a moderate 5, marking a gentle transition from the summer's intense exposure. This is a noticeable drop from the very high 8 experienced in July and June, yet still encourages caution as burn time reduces to 30 minutes. The shift signals a return to more temperate outdoor conditions, perfect for enjoying the beautiful coastal scenery while being mindful of sun safety. Just a month earlier, visitors enjoyed longer sun exposure, but as autumn approaches, it’s essential to remain vigilant. For the latest insights on UV levels throughout the year, visit the comprehensive guide at Dunmore East UV Index.

Maximum UV Index Levels in Dunmore East for September

The chart shows the monthly maximum UV Index (UVI) for Dunmore East 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Dunmore East 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 Dunmore East

As summer gracefully transitions into autumn, September in Dunmore East embraces a generous 308 hours of sunshine, reflecting a satisfying blend of warmth before the chill of October sets in. Following the peak sunlight months of July and August, which boasted over 400 hours, September still offers a sweet taste of lingering summer. The sun-drenched days begin to diminish, yet the golden hues of early autumn create a breathtaking backdrop for outdoor adventures. This month stands out not only for its beautiful weather but also as a prelude to the cooler months, reminding us of the vibrant contrast in daylight throughout the year. As the days shorten, the allure of Dunmore East remains, inviting visitors to enjoy the stunning scenery bathed in warm sunlight.

Monthly Sunshine Duration in Dunmore East: September Highlighted

The September sunshine duration represents the total number of hours Dunmore East 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.
JanFebMarAprMayJunJulAugSepOctNovDec93h150h206h310h401h398h408h358h308h245h135h110h
Data source: Dunmore East September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dunmore East During September

In Dunmore East, Ireland, the likelihood of sunny weather in September takes a dip, with only a 23% chance of sunshine. This trend reflects a gradual decline in sunny days as the summer months fade, as seen from the more favorable weather patterns in April (48%) and May (35%). Following the summer peak in July (34%) and August (31%), September marks a transition into the cooler, less vibrant autumn season, where the chance of sunshine wanes further into October, which sees just a 20% chance. Overall, the data suggests that those hoping for sunshine during September should be prepared for a more overcast experience as the year draws closer to winter.

Percentage of Sunny Days in September in Dunmore East

The chart illustrates the percentage of sunny days in Dunmore East 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 Dunmore East experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%24%26%48%35%26%34%31%23%20%31%24%
Data source: Dunmore East September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dunmore East in September

As September arrives in Dunmore East, Ireland, the days begin to shorten, allowing for a smooth transition from the long, sunlit hours of summer. With 12 hours of daylight, September stands as a balance between the vibrant brightness of June and July’s 16 hours and the dwindling light that characterizes the later months of the year. The gradual decline from summer peaks illustrates a gentle tapering off, leading down to 10 hours in October. This shift not only hints at the impending cozy embrace of autumn but also offers a lovely opportunity to enjoy the beauty of the landscape as it begins to change.

Average Daylight Hours in Dunmore East for September

The chart illustrates the variation in daylight duration in Dunmore East throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 18m9h 55m11h 54m13h 57m15h 43m16h 39m16h 9m14h 33m12h 35m10h 34m8h 45m7h 47m
Data source: Dunmore East daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Dunmore East

In Dunmore East, Ireland, September heralds a shift in the winds, with an average speed of 4.1 m/s (9 mph), marking a slight decrease from the summer months. As the warm breezes of July and August fade away, bringing with them an average speed of 3.7 m/s (8 mph) and 4.7 m/s (10 mph) respectively, September settles into a gentle rhythm, ideal for coastal strolls and seaside picnics. This moderate wind pattern continues into the autumn months, rising again to 6.1 m/s (14 mph) in October. Overall, the transition from summer’s softness to autumn’s briskness suggests not only a change in the seasons but also invites a refreshing experience of the natural beauty that surrounds Dunmore East.

Average September Wind Speed in Dunmore East

The chart displays monthly wind speed patterns in Dunmore East, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.97.75.74.45.34.53.74.74.1 m/s6.15.56.4
Data source: Dunmore East September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Dunmore East Compares to Other Months

The weather in Dunmore East 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 Dunmore East and find detailed weather information for every month.

September and January present contrasting weather patterns. In September, temperatures range from a minimum of 6°C (42°F) to a maximum of 21°C (70°F), with an average of 14°C (58°F). The month sees a fair amount of rainfall, totaling 74 mm (2.9 in) across approximately 12 days, and humidity levels are high at 86%. In contrast, January experiences cooler conditions, with temperatures ranging from a minimum of 0°C (31°F) to a maximum of 13°C (56°F) and an average temperature of 7°C (45°F). Despite having slightly less precipitation at 61 mm (2.4 in) over 12 days, January maintains a similar humidity level of 85%. For more specifics on January weather in this region, check out Dunmore East weather in January.

September and February present notable contrasts in weather patterns. In September, temperatures range from a minimum of 6°C (42°F) to a comfortable average of 14°C (58°F), peaking at 21°C (70°F). The month sees about 74 mm (2.9 in) of precipitation over 12 days, maintaining a consistent humidity level of 86%. In contrast, February is colder, with temperatures decreasing to a minimum of 0°C (32°F) and an average of 7°C (45°F), reaching a maximum of 13°C (56°F). February also experiences higher precipitation, totaling 107 mm (4.2 in) over 16 days, yet the humidity remains constant at 86%. For more detailed insights into February's climate, you can check Dunmore East weather in February.

September and March present markedly different weather conditions. In September, temperatures range from a minimum of 6°C (42°F) to a pleasant average of 14°C (58°F), peaking at 21°C (70°F). The month experiences moderate rainfall, with 74 mm (2.9 in) spread over about 12 days, maintaining a high humidity level of 86%. In contrast, March boasts cooler temperatures, with a minimum of -4°C (26°F) and an average of 7°C (46°F), reaching a maximum of 13°C (56°F). Rainfall is slightly higher at 89 mm (3.5 in) over 16 days, also coupled with an 86% humidity level. For a more detailed look at March weather, you can visit Dunmore East weather in March.

September generally offers warmer temperatures compared to April, with average highs reaching 21°C (70°F) versus April's maximum of 16°C (60°F). The monthly minimum in September is also notably higher at 6°C (42°F) compared to April's chilly 1°C (34°F). While both months experience relatively similar levels of precipitation—September with 74 mm (2.9 in) over 12 days and April with 67 mm (2.6 in) over 11 days—the humidity remains quite high in both months, at 86% for September and 85% for April. For those interested in exploring the specifics of April weather, you can check Dunmore East weather in April.

In comparing the weather of September and May, September tends to be warmer with average temperatures peaking at 14°C (58°F) and reaching a maximum of 21°C (70°F), while May's average sits lower at 11°C (52°F) with a maximum of 18°C (65°F). September also experiences slightly more precipitation, with 74 mm (2.9 in) falling over 12 days, compared to May's 61 mm (2.4 in) across 10 days. Additionally, humidity levels are a bit higher in September at 86%, whereas May maintains a comfortable 83%. For a more detailed look, check out Dunmore East weather in May.

When comparing the weather in September and June, both months exhibit mild temperatures with average highs around 21°C (70°F) in September and 22°C (72°F) in June. However, September tends to start with slightly cooler nights, boasting a minimum temperature of 6°C (42°F) compared to June's minimum of 8°C (46°F). Precipitation levels are similar, with September experiencing 74 mm over 12 days and June seeing 71 mm over 11 days, making both months relatively wet. Humidity is also comparable, with September at 86% and June just slightly lower at 85%. For more detailed insights into June weather, you can check Dunmore East weather in June.

When comparing the weather in September to July, several notable differences emerge. September experiences slightly cooler temperatures, with a minimum of 6°C (42°F), an average of 14°C (58°F), and a maximum of 21°C (70°F), whereas July's temperatures are warmer, ranging from a minimum of 10°C (50°F) to a maximum of 22°C (72°F). Precipitation levels are also slightly higher in September, with 74 mm (2.9 in) expected over 12 days compared to July’s 62 mm (2.4 in) over 11 days. Despite the differences in temperature and rainfall, both months share a consistent humidity level of 86%. For a more detailed look at July weather patterns, check out Dunmore East weather in July.

In comparing the weather of September to August, we see a slight drop in temperatures, with September experiencing minimums of 6°C (42°F) compared to August's 9°C (48°F). The average temperature in September is 14°C (58°F), lower than August’s 16°C (60°F), although both months share the same maximum temperature of 21°C (70°F). Precipitation also differs, with September receiving 74 mm (2.9 in) over 12 days, slightly less than August's 93 mm (3.7 in) across the same number of days. Humidity levels remain quite similar, with September at 86% and August at 85%. For more detailed information about August weather, you can visit Dunmore East weather in August.

In September, the weather features milder temperatures with a minimum of 6°C (42°F) and a comfortable average of 14°C (58°F), peaking at a maximum of 21°C (70°F). The month experiences moderate rainfall, totaling 74 mm (2.9 in) over 12 days, and maintains a high humidity level of 86%. As October arrives, temperatures drop slightly, with a minimum of 4°C (39°F) and an average of 12°C (53°F), peaking at 18°C (64°F). Rainfall increases to 110 mm (4.3 in) over 16 days, alongside a marginal rise in humidity to 87%. For more detailed insights, check out Dunmore East weather in October.

In September, the weather is generally milder, with temperatures ranging from a minimum of 6°C (42°F) to a maximum of 21°C (70°F) and an average of 14°C (58°F). Precipitation is relatively moderate at 74 mm (2.9 in) over about 12 days, accompanied by high humidity levels of 86%. In contrast, November brings cooler temperatures, with a minimum of 2°C (36°F), an average of 9°C (49°F), and a maximum of 15°C (59°F). The month is notably wetter, experiencing 125 mm (4.9 in) of rain across approximately 17 days, while humidity remains consistent at 86%. For more details on November weather in this region, check out Dunmore East weather in November.

In September, the weather is generally milder, with average temperatures ranging from a minimum of 6°C (42°F) to a maximum of 21°C (70°F), leading to pleasant daytime conditions. However, the month experiences considerable rainfall, totaling 74 mm (2.9 in) over about 12 days, along with high humidity at 86%. In contrast, December brings cooler temperatures, with averages dipping between a minimum of -1°C (31°F) and a maximum of 13°C (56°F). Although it is colder, the month is also wetter, receiving 126 mm (5.0 in) of precipitation over 15 days, and maintaining slightly lower humidity at 84%. For more detailed insights, you can check the Dunmore East weather in December.

Compare Dunmore East's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Dunmore East

As summer gives way to autumn, September in Dunmore East presents a significant shift in weather patterns. With average temperatures cooling to a comfortable 14°C, the month is characterized by a blend of mild days and crisp evenings, inviting outdoor enthusiasts to savor the changing scenery. In contrast to the warmer summer months, September experiences increased precipitation, with 12 days of rain contributing to a total of 74 mm. This higher humidity, averaging 86%, enhances the lushness of the landscape and the coastal charm of the area. For a complete overview of what to expect throughout the year, visit Dunmore East Climate.