September Weather in Herning, Denmark

Last updated: August 21, 2025

September in Herning, Denmark offers a delightful transition from summer to autumn, with maximum temperatures reaching up to 25°C (77°F) and an average of 14°C (57°F). The month experiences a noticeable dip in nighttime temperatures, occasionally dropping to a cool 2°C (37°F). With 92 mm (3.6 in) of rainfall spread over 13 days, the air brims with a freshness, accompanied by high humidity levels of 85%. This blend of mild warmth and occasional rain creates an ever-changing landscape, perfect for those seeking both comfort and the vibrant colors of early fall.

September Temperature in Herning

In September, Herning, Denmark, experiences a refreshing transition as summer gradually gives way to autumn. With minimum temperatures starting at a cool 2°C (37°F) and maximums peaking at a comfortable 25°C (77°F), the month offers a pleasant average of 14°C (57°F). This moderate climate allows for ideal outdoor activities, making it a prime time to enjoy the changing foliage and local festivals. As September progresses, the gradual decline in temperature hints at the cooler months ahead, while still retaining the warmth of late summer days. Overall, this month encapsulates the beauty of early autumn in Herning, marked by crisp mornings and mild afternoons.

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

The chart illustrates September temperature patterns in Herning, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Herning, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec373639455260616256504339
Data source: Temperature data for Herning 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 Herning

September in Herning, Denmark, sees a notable drop in sunshine as it welcomes 92 mm (3.6 in) of precipitation over 13 days. This marks a transition from the wetter summer months, particularly August, which experienced a peak of 107 mm (4.2 in). The consistent rainfall in September contributes to the region's lush landscapes, making it a vibrant time for nature. As autumn approaches, the precipitation tends to stabilize, with October following closely with 97 mm (3.8 in), indicating a seasonal pattern of increasing rainfall as temperatures begin to cool. This trend highlights Herning’s characteristic shift toward a wetter and more atmospheric fall, inviting both the beauty of changing leaves and the sound of rain-soaked streets.

September Precipitation Trends in Herning

The chart displays monthly precipitation patterns in Herning, 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. In Herning, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec5462713981788110792975769
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Herning

September in Herning, Denmark, typically ushers in a shift from the drier summer months, with humidity levels rising to about 85%. After enjoying the crisp, mild days of August with 80% humidity, residents can expect a slight increase as autumn approaches. This steady pattern reflects a gradual transition; humidity levels begin high in winter at 88% and sustain a relatively consistent range throughout the year, peaking again at 87% in both October and November. As the chill of autumn sets in, the gradual increase in humidity serves as a reminder of the changing seasons, ensuring that Herning's atmospheric character remains rich and inviting.

September Average Humidity in Herning

This chart illustrates the average monthly humidity levels in Herning, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Herning is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%86%84%79%77%78%80%85%87%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Herning

As September rolls into Herning, Denmark, residents and visitors can expect a moderate UV Index of 5, signaling a shift towards milder sun exposure as summer wanes. This brings a burn time of 30 minutes, encouraging outdoor enthusiasts to enjoy the crisp autumn air while still being mindful of sun safety. Following the high levels seen in July and August, September's UV readings indicate a gradual decline, reflecting a general trend of decreasing UV intensity as the year progresses. With October approaching and its UV Index dropping further to 3, it's a great opportunity to appreciate the beautiful changing foliage while ensuring protection against the sun’s rays. For more detailed information, check out the Herning UV Index.

Maximum UV Index Levels in Herning for September

The chart shows the monthly maximum UV Index (UVI) for Herning 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. In September, the maximum UV index in Herning typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567765311
Data source: Herning 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 Herning

In Herning, Denmark, September brings a delightful transition from the summer's generous sunshine, offering 296 hours of bright days that linger longer than the autumn chill. While June and July bask in their peak glory with over 430 hours of sun, September still retains a vibrant warmth, significantly more than the crisp upcoming months of October and November. The sun's presence gradually fades as the year progresses, illustrated by the steep drop to just 131 hours in November. This trend not only marks the end of summer but also highlights the importance of cherishing the sunny days of September as they signal the beauty of the waning seasons.

Monthly Sunshine Duration in Herning: September Highlighted

The September sunshine duration represents the total number of hours Herning 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.
JanFebMarAprMayJunJulAugSepOctNovDec97h174h251h367h411h434h441h391h296h232h131h114h
Data source: Herning September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Herning During September

In Herning, Denmark, September experiences a 27% chance of sunny weather, which reflects a slight dip following the summer months. This trend highlights a transition as the warm days of August fade, offering a mix of mild temperatures and increasing cloud cover. Compared to the warmer months where sunny probabilities peak, September's sunshine likelihood aligns more closely with the leaner chances seen in early spring and the chill of autumn's onset. Thus, while the days may still grant a glimpse of sun, it's advisable to prepare for a diverse range of weather conditions as the season shifts.

Percentage of Sunny Days in September in Herning

The chart illustrates the percentage of sunny days in Herning 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 Herning experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec18%27%36%56%23%34%31%39%27%23%18%24%
Data source: Herning September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Herning in September

As summer fades and autumn begins to settle in, September in Herning, Denmark welcomes a transitional shift in daylight, offering about 12 hours of sunlight. This month stands out with a noticeable decrease from the longer, sun-drenched days of summer; June reaches a peak of 17 hours, providing vibrant outdoor experiences. As the days shorten, September serves as a gentle reminder of nature's rhythm, bridging the brightness of summer and the early twilight of autumn. Following closely, October will further reduce daylight to 10 hours, signaling the approach of winter's embrace. This gradual decline highlights a clear trend of diminishing daylight, creating a beautiful tapestry of seasonal change.

Average Daylight Hours in Herning for September

The chart illustrates the variation in daylight duration in Herning throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 38m9h 34m11h 53m14h 15m16h 23m17h 32m16h 55m14h 59m12h 41m10h 20m8h 11m6h 59m
Data source: Herning daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Herning

As the winds of September sweep through Herning, Denmark, they carry a gentle touch, with an average speed of 3.7 m/s (8 mph). This month marks a subtle shift in the climatic rhythm, as the winds begin to dip from the slight uptick seen in the summer months. Throughout the year, January starts strong with a breeze of 4.0 m/s (9 mph), but it is in the more vibrant fall months, like October, that the winds regain their energy, escalating to 4.9 m/s (11 mph). This trend highlights a transition where September invites a moment of calm before the brisk autumn gales take hold. As the leaves begin to turn, the gentle September breeze serves as a reminder of summer lingering just on the edge of autumn’s embrace.

Average September Wind Speed in Herning

The chart displays monthly wind speed patterns in Herning, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.04.74.54.53.73.73.84.23.7 m/s4.94.54.3
Data source: Herning September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Herning Compares to Other Months

Weather in Herning varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Herning, focusing on differences in temperature, rainfall, humidity, and UV levels.

In September, the weather is generally mild, with temperatures ranging from a minimum of 2°C (37°F) to a maximum of 25°C (77°F) and an average of 14°C (57°F). This month sees considerable precipitation, totaling 92 mm (3.6 in) over approximately 13 days and is characterized by high humidity levels of 85%. In contrast, January experiences much colder conditions, with temperatures dipping as low as -10°C (13°F) and peaking at 10°C (51°F), creating an average of just 3°C (37°F). Precipitation is less frequent in January, totaling 54 mm (2.1 in) over around 11 days, but humidity remains high at 88%. For more detailed insights on weather during this winter month, visit Herning weather in January.

September and February present stark contrasts in weather. September enjoys milder temperatures, with a minimum of 2°C (37°F) and an average of 14°C (57°F), reaching a maximum of 25°C (77°F). It also experiences higher precipitation with 92 mm (3.6 in) over 13 days and humidity levels around 85%. In contrast, February is much colder, featuring a minimum temperature of -14°C (7°F), an average of 2°C (37°F), and a maximum of only 12°C (54°F). The month sees less total precipitation at 62 mm (2.4 in) spread over 11 days, accompanied by slightly higher humidity at 87%. For more details on February weather, check out Herning weather in February.

When comparing the weather in September and March, distinct differences emerge. September typically enjoys milder temperatures, with a minimum of 2°C (37°F) and an average of 14°C (57°F), reaching a maximum of 25°C (77°F). In contrast, March is colder, with temperatures ranging from a chilling -10°C (15°F) to an average of 4°C (39°F) and a maximum of only 14°C (57°F). Precipitation is slightly higher in September, accumulating to 92 mm (3.6 in) over 13 days, whereas March sees 70 mm (2.8 in) of precipitation over 12 days. Humidity remains quite similar, with September at 85% and March at 86%. For more details on March weather, you can check Herning weather in March.

When comparing the weather of September and April, notable differences emerge in temperature and precipitation. September tends to be warmer, with average daily temperatures ranging from a minimum of 2°C (37°F) to a maximum of 25°C (77°F), while April experiences a broader range with temperatures dipping as low as -5°C (24°F) and peaking at 23°C (75°F). Despite both months featuring high humidity levels, September is typically wetter, receiving about 92 mm (3.6 in) of precipitation over 13 days, compared to April's 39 mm (1.5 in) spread over 9 days. For a more detailed look at April weather specifically, check out Herning weather in April.

September and May showcase distinct weather patterns as summer transitions to autumn. In September, temperatures range from a minimum of 2°C (37°F) to a maximum of 25°C (77°F), with an average of 14°C (57°F), while humidity remains notably high at 85%. This month experiences more precipitation, totaling 92 mm (3.6 in) over 13 days. In contrast, May begins with slightly cooler temperatures, ranging from 0°C (32°F) to a maximum of 27°C (81°F) and averaging 11°C (52°F). Although May has 81 mm (3.2 in) of precipitation, it has a somewhat lower humidity level of 79%. For more detailed information, you can check Herning weather in May.

In comparing September and June weather, September tends to be cooler with temperatures ranging from a minimum of 2°C (37°F) to a maximum of 25°C (77°F), while June enjoys a warmer range, with minimums at 5°C (42°F) and maximums reaching 29°C (84°F). Additionally, September experiences higher precipitation levels at 92 mm (3.6 in) over 13 days, compared to June's 78 mm (3.1 in) over 10 days. Humidity levels are also notably higher in September, averaging 85%, compared to June's 77%. For more specific details on the weather in June, you can refer to Herning weather in June.

In comparison to July, September typically brings cooler temperatures, with July averaging a minimum of 6°C (43°F) and a maximum of 31°C (88°F), whereas September sees a minimum of 2°C (37°F) and a maximum of 25°C (77°F). While July boasts slightly less precipitation at 81 mm (3.2 in) over 12 days, September experiences a bit more rain at 92 mm (3.6 in) across 13 days. Additionally, the humidity in September is higher at 85%, compared to July's 78%, contributing to a more muggy atmosphere as the season transitions. For more details on the July weather in Herning, you can refer to Herning weather in July.

September's weather is cooler and more variable compared to August. While August enjoys warmer temperatures with a minimum of 7°C (44°F) and a maximum of 30°C (86°F), September has a lower minimum of 2°C (37°F) and a milder maximum of 25°C (77°F). Precipitation is also a factor, with September receiving 92 mm (3.6 in) over 13 days, slightly less than August's 107 mm (4.2 in) over 17 days. Humidity levels are a bit higher in September at 85%, compared to August’s 80%. For more details about August weather, you can visit Herning weather in August.

September and October present a noticeable transition in weather patterns. September boasts a milder climate, with average temperatures reaching up to 14°C (57°F) and maximums of 25°C (77°F), while the month still experiences a fair amount of precipitation, totaling 92 mm (3.6 in) over 13 days. In contrast, October sees a dip in temperatures, averaging 10°C (51°F) and peaking at 22°C (72°F), as well as an increase in rainfall to 97 mm (3.8 in) across 16 days. Humidity remains high in both months, with October slightly higher at 87% compared to September's 85%. For more detailed insights into October weather conditions, check out Herning weather in October.

In September, the weather exhibits a wide temperature range, with minimums around 2°C (37°F) and maximums reaching up to 25°C (77°F), averaging 14°C (57°F). The month brings considerable precipitation, totaling 92 mm (3.6 in) over approximately 13 days, and features high humidity at 85%. In contrast, November sees a noticeable drop in temperatures, with minimums dipping to -3°C (27°F) and an average temperature of 6°C (44°F), while maximums are milder at 16°C (61°F). Precipitation also decreases to 57 mm (2.2 in) across the same number of rainy days, leading to slightly higher humidity at 87%. For more specific details, you can refer to Herning weather in November.

In September, the weather is relatively mild, with average temperatures ranging from a minimum of 2°C (37°F) to a maximum of 25°C (77°F) and an average of 14°C (57°F). The month experiences significant rainfall of 92 mm (3.6 in) over 13 days, accompanied by high humidity at 85%. In contrast, December brings a noticeable chill, with temperatures dipping from a minimum of -9°C (17°F) to a maximum of 10°C (51°F) and an average of just 4°C (39°F). Although precipitation is less at 69 mm (2.7 in) over the same number of days, the humidity remains constant at 85%, creating a damp and cold atmosphere. For more details on December conditions, check out Herning weather in December.

Compare Herning's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Herning

As September unfolds in Herning, the weather begins to transition from the warmth of summer to the briskness of autumn. The average temperature settles around a comfortable 14°C, offering an inviting atmosphere, yet the possibility of cooler nights—with lows dipping to about 2°C—reminds us that winter isn't far off. With an average of 13 days of precipitation, this month experiences more wet days than many others, contributing to a notable humidity level of 85% that envelops the region. This blend of mild temperatures and increased moisture creates an atmosphere distinctly different from the preceding summer months, highlighting the dynamic climate shifts of Herning. For more insights, explore Herning Climate.