September Weather in Downpatrick, United Kingdom

Last updated: March 17, 2025

In September, Downpatrick, United Kingdom, experiences a refreshing transition into autumn, with temperatures ranging from a maximum of 19°C (67°F) to a minimum of 6°C (44°F) and an average of 14°C (57°F). This month is characterized by considerable humidity at 88%, creating a damp atmosphere, while precipitation adds to the lush landscape, accumulating to 83 mm (3.3 in) over approximately 16 days. Overall, September offers a blend of mild temperatures and frequent rains, making it a vibrant yet unpredictable time in Downpatrick.

September Temperature in Downpatrick

September in Downpatrick, United Kingdom, marks a delightful transition as summer gives way to the crisp embrace of autumn. With minimum temperatures averaging around 6°C (44°F) and pleasant highs peaking at 19°C (67°F), this month offers a comfortable climate perfect for outdoor activities. The average temperature settles at a mild 14°C (57°F), hinting at the cooler days that lie ahead. As the warmth of August fades, residents and visitors alike can enjoy the shift in scenery, with nature showcasing its vibrant hues while keeping a gentle chill in the air—a wonderful reminder of the changing seasons. This blend of warmth and coolness makes September an ideal time to explore the rich history and stunning landscapes of Downpatrick.

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

The chart illustrates September temperature patterns in Downpatrick, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec444445475257605957534845
Data source: Temperature data for Downpatrick 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 Downpatrick

In September, Downpatrick experiences a notable transition in its weather, with precipitation amounting to 83 mm (3.3 in), which reflects a consistent wet pattern following August's heavier rainfall of 115 mm (4.5 in) over 18 days. The 16 rainy days this month indicate that, while September remains damp, the intensity of the rainfall begins to ease as autumn approaches. This slight reduction in precipitation is typical for the season, positioning September as a bridge between the lush summer months and the wetter fall, suggesting an evolving landscape of vibrant colors and cooler temperatures. The data hints at a rhythm in Downpatrick’s climate, where each month weaves into the next, setting the stage for the upcoming change in seasons.

September Precipitation Trends in Downpatrick

The chart displays monthly precipitation patterns in Downpatrick, 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.
JanFebMarAprMayJunJulAugSepOctNovDec69102914360768411583110120107
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Downpatrick

As September rolls in, Downpatrick, United Kingdom, experiences a notable increase in humidity, peaking at 88%. This uptick marks a shift from the summer months, where humidity hovered around 86% in both July and August. Interestingly, September often signals the transition toward the wetter fall season, as average humidity starts its gradual climb towards the 90% mark seen in October and November. With the air feeling increasingly damp, residents and visitors alike can expect a more moist atmosphere, setting the stage for the crisp, cool days of autumn that follow.

September Average Humidity in Downpatrick

This chart illustrates the average monthly humidity levels in Downpatrick, 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.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Downpatrick

As September rolls into Downpatrick, the UV Index reflects a transitional phase in sunlight intensity, resting at a moderate 5. This means that while sun exposure remains enjoyable, it’s important to be mindful of the rays, with an estimated burn time of 30 minutes for sensitive skin. This month’s index marks a decrease from the peak of summer, where July and June showcased very high levels at 8, but is a notable continuation from August's high level of 6. The trend indicates a gradual easing of UV intensity as autumn approaches, where outdoor enthusiasts can still relish the sun while taking necessary precautions. For more detailed insights, visit Downpatrick UV Index.

Maximum UV Index Levels in Downpatrick for September

The chart shows the monthly maximum UV Index (UVI) for Downpatrick 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.
JanFebMarAprMayJunJulAugSepOctNovDec123578865321
Data source: Downpatrick 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 Downpatrick

In September, Downpatrick basks in 304 hours of sunshine, a delightful continuation of the summer's glow that peaks in the earlier months. Following a vibrant May and June, when sunny days reached their zenith, September transitions with a noticeable drop in sunlight, yet still outshines the darker months to come. The steady decline from August's 359 hours heralds the approach of autumn, while the springtime bloom of April's 333 hours and the burgeoning brightness of March's 220 hours hint at the seasonal evolution. This gradual shift showcases the unique climatic rhythm of Downpatrick, where even as days shorten, the September sunshine remains a welcome embrace before the winter's chill sets in.

Monthly Sunshine Duration in Downpatrick: September Highlighted

The September sunshine duration represents the total number of hours Downpatrick 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.
JanFebMarAprMayJunJulAugSepOctNovDec85h154h220h333h411h405h409h359h304h238h122h93h
Data source: Downpatrick September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Downpatrick During September

In Downpatrick, the likelihood of sunny weather experiences a noticeable shift as summer gives way to autumn. September, with a 22% chance of sunshine, echoes the trends observed in the preceding months of July and August, both hovering around the same level. Although this marks a slight decline from the sunnier spell of April at 45%, it's essential to consider that September still enjoys a healthier probability of sunshine compared to the drearier months ahead. As the year progresses, particularly into October and beyond, sunlight becomes a rarer gem, further emphasizing the fleeting nature of summer's warmth in this charming corner of the United Kingdom.

Percentage of Sunny Days in September in Downpatrick

The chart illustrates the percentage of sunny days in Downpatrick 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 Downpatrick experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%23%22%45%35%25%35%24%22%21%23%18%
Data source: Downpatrick September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Downpatrick in September

As September arrives in Downpatrick, United Kingdom, the days begin to transition into autumn, bringing with them approximately 12 hours of daylight. Following the lush, sun-soaked months of summer, where daylight stretched to a generous 17 hours in June, the gradual decline becomes apparent. After the peak of summer, daylight hours start to wane, dropping to 16 hours in July and 14 in August. This slight dip in daylight during September marks the beginning of a shift towards shorter days, with October further reducing daylight to 10 hours. As the month progresses, the lingering warmth of summer gives way to the crispness of fall, inviting a transformation in both the landscape and daily activities.

Average Daylight Hours in Downpatrick for September

The chart illustrates the variation in daylight duration in Downpatrick throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 58m9h 45m11h 54m14h 6m16h 3m17h 5m16h 31m14h 46m12h 38m10h 27m8h 28m7h 24m
Data source: Downpatrick daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Downpatrick

As September unfolds in Downpatrick, the wind carries a gentle whisper of change, with an average speed of 4.3 m/s (10 mph)—a slight increase from the mellow breezes of summer. This shift marks a transition from the more languid 3.2 m/s (7 mph) winds of July, bringing a refreshing coolness that hints at the approaching autumn. Throughout the year, the wind has danced through various speeds; January and February often gust with vigor, peaking at 7.8 m/s (17 mph), while the summer months slow down considerably. As the seasons progress towards October's brisk winds averaging 6.0 m/s (13 mph), September serves as a tranquil bridge, inviting both locals and visitors to enjoy the subtle changes in the air.

Average September Wind Speed in Downpatrick

The chart displays monthly wind speed patterns in Downpatrick, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.77.85.74.24.94.63.24.14.3 m/s6.06.26.2
Data source: Downpatrick September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Downpatrick Compares to Other Months

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

In comparing the weather between September and January, September typically offers milder temperatures, with averages reaching up to 14°C (57°F), while January's temperatures are cooler, averaging around 6°C (44°F). September experiences a broader range of temperatures, with maximums hitting 19°C (67°F), compared to January's maximum of 13°C (56°F). Additionally, September tends to be wetter, with 83 mm (3.3 in) of precipitation over 16 days, while January sees less rain at 69 mm (2.7 in) over 12 days. Both months maintain high humidity levels, hovering around 88% in September and 87% in January. For more specific information about January weather, you can check Downpatrick weather in January.

September and February present quite different weather patterns. In September, temperatures range from a minimum of 6°C (44°F) to a maximum of 19°C (67°F), with an average of 14°C (57°F). This month experiences 83 mm (3.3 in) of precipitation over 16 days, and humidity levels are relatively high at 88%. In contrast, February is cooler, with temperatures dipping to a minimum of 0°C (33°F) and peaking at 12°C (55°F), averaging at 7°C (44°F). It also sees slightly higher precipitation levels at 101 mm (4.0 in) over the same number of rainy days, accompanied by a somewhat lower humidity of 86%. For more detailed information, check out Downpatrick weather in February.

September and March present notable contrasts in weather. In September, temperatures range from a minimum of 6°C (44°F) to a maximum of 19°C (67°F), with an average of 14°C (57°F). The month experiences 83 mm (3.3 in) of precipitation spread over 16 days and an average humidity of 88%. In contrast, March sees colder temperatures, with a minimum of -2°C (28°F) and a maximum of 14°C (58°F), averaging at 7°C (45°F). Precipitation slightly increases to 91 mm (3.6 in) over the same number of days, but with a lower humidity level of 86%. For more specific details on March weather, you can refer to Downpatrick weather in March.

When comparing the weather in September and April, there are notable differences in temperature and precipitation. September features a broader temperature range, with minimums of 6°C (44°F) and maximums reaching 19°C (67°F), leading to an average of 14°C (57°F). In contrast, April is cooler overall, showcasing minimum temperatures of 1°C (34°F) and maximums of 15°C (60°F), resulting in an average of just 8°C (47°F). Precipitation is also more frequent in September, with 83 mm (3.3 in) falling over 16 days, compared to April's 43 mm (1.7 in) over only 8 days. Humidity levels are relatively similar, at 88% in September and 85% in April. For more specific details, you can check Downpatrick weather in April.

When comparing the weather in September and May, both months exhibit relatively mild temperatures, with September featuring a slightly higher average of 14°C (57°F) compared to May's average of 11°C (52°F). September sees temperatures ranging from a minimum of 6°C (44°F) to a maximum of 19°C (67°F), while May has a low of 3°C (37°F) but shares the same maximum of 19°C (66°F). Precipitation levels are higher in September, totaling 83 mm (3.3 in) over 16 days, as opposed to May's 60 mm (2.4 in) across 11 days. Additionally, September has a higher humidity level at 88%, compared to May's 82%, making September feel a bit wetter overall. For more detailed weather information specific to May, visit Downpatrick weather in May.

In comparing the weather of September and June, we notice some interesting contrasts. June generally presents a slightly warmer climate, with maximum temperatures reaching 22°C (72°F), compared to September's peak of 19°C (67°F). Both months share a similar average temperature of 14°C (57°F) and a humidity level that hovers around 84-88%. However, September tends to experience more precipitation, averaging 83 mm (3.3 inches) over 16 days, while June sees slightly less at 76 mm (3.0 inches) across 14 days. For more detailed information, you can check Downpatrick weather in June.

In comparing the weather between September and July, we see distinct differences in temperature and conditions. September experiences a cooler range, with minimum temperatures dropping to 6°C (44°F) and a maximum of 19°C (67°F), while July is generally warmer, starting at a minimum of 10°C (50°F) and reaching up to 24°C (75°F). Both months receive similar amounts of precipitation, around 84 mm (3.3 in), spread over 16 days, but September's humidity is slightly higher at 88% compared to July's 86%. These variations reflect the transition from the warmth of summer in July to the cooler, wetter conditions of early autumn in September. For more specific details on July weather, you can check out Downpatrick weather in July.

In comparing the weather of September to August, September tends to be cooler overall. The minimum temperature in September is 6°C (44°F), while August starts at a higher minimum of 9°C (49°F). The average temperatures reflect this, with September averaging 14°C (57°F) compared to August's 15°C (60°F). Although September experiences slightly less rainfall at 83 mm (3.3 in) over 16 days, compared to August's 115 mm (4.5 in) over 18 days, both months have high humidity levels, with September at 88% and August at 86%. For a closer look at August weather specifics, visit Downpatrick weather in August.

September and October exhibit noticeable differences in weather patterns. In September, temperatures range from a minimum of 6°C (44°F) to a maximum of 19°C (67°F), with an average temperature of 14°C (57°F). This month experiences 83 mm (3.3 in) of precipitation over 16 days and maintains a humidity level of 88%. In contrast, October sees a slight drop in temperature, with a minimum of 4°C (39°F), an average of 11°C (53°F), and a maximum of 17°C (63°F). Precipitation increases to 110 mm (4.3 in) spread across 17 days, and humidity rises slightly to 89%. For more detailed insights into October weather, check out Downpatrick weather in October.

In September, the weather tends to be milder, with average temperatures around 14°C (57°F), peaking at 19°C (67°F) and experiencing around 83 mm (3.3 in) of precipitation over 16 days. The humidity is relatively high at 88%, creating a cool but invigorating atmosphere. In contrast, November brings cooler temperatures, with an average of only 9°C (48°F) and a maximum of 14°C (58°F). This month also sees increased rainfall, with 120 mm (4.7 in) of precipitation over 17 days and a slightly higher humidity level of 90%. For a detailed look at the weather conditions in November, you can visit Downpatrick weather in November.

In September, the weather tends to be milder, with average temperatures ranging from a minimum of 6°C (44°F) to a maximum of 19°C (67°F). The month sees an average precipitation of 83 mm (3.3 in) spread over 16 days, and humidity levels are relatively high at 88%. By contrast, December brings cooler conditions, with average temperatures dropping to a minimum of 1°C (34°F) and a maximum of 13°C (55°F). This month records higher precipitation at 107 mm (4.2 in) over 15 days, accompanied by slightly lower humidity at 86%. For a more detailed look at December conditions, check out Downpatrick weather in December.

Compare Downpatrick's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Downpatrick

As September unfolds in Downpatrick, the weather begins to shift, ushering in cooler temperatures that set it apart from the summer months. With an average temperature of 14°C (57°F), this transition welcomes a refreshing crispness to the air. Increased humidity levels at 88% and the rise in precipitation, totaling 83 mm (3.3 in) over 16 days, contribute to a lush, green landscape. While the warmth of summer lingers with occasional maximums reaching 19°C (67°F), the consistent rainfall marks a distinct change, preparing the region for the forthcoming autumn. To explore more about how weather patterns affect this charming locale, visit Downpatrick Climate.