September Weather in Leknes, Norway

Last updated: August 27, 2025

September in Leknes, Norway showcases a shift towards cooler temperatures as autumn settles in. The maximum temperature reaches a pleasant 15°C (60°F), with an average of 10°C (51°F) and a minimum dipping to 4°C (40°F). This month also brings considerable rainfall, with a total precipitation of 107 mm (4.2 in) spread across 16 days, making it a rather wet period. With humidity levels at a high 87%, the air feels crisp and invigorating, perfect for enjoying the stunning natural landscapes that this part of Norway has to offer. Embrace the enchanting autumn ambiance while navigating the frequent showers and cool breezes.

September Temperature in Leknes

As September rolls in, Leknes, Norway experiences a gentle transition from summer warmth to autumn coolness. The minimum temperature hovers around 4°C (40°F), providing a crisp freshness to the air, while the average settles comfortably at 10°C (51°F), making it a pleasant month for outdoor activities. With a peak of 15°C (60°F), the days still hold onto a touch of summer charm, yet the nights remind you that winter is not far off. This month marks a shift in temperatures, as it comfortably bridges the gap between the balmy days of August and the cooler climes of October, inviting locals and visitors alike to enjoy the changing scenery amidst an increasingly vibrant landscape.

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

The chart illustrates September temperature patterns in Leknes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Leknes, 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).
JanFebMarAprMayJunJulAugSepOctNovDec363435374148525451454238
Data source: Temperature data for Leknes 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 Leknes

September in Leknes, Norway, sees a notable uptick in precipitation, with 107 mm (4.2 in) of rain falling over 16 days. This marks a return to wetter conditions following the drier summer months of May and June, which recorded just 49 mm and 48 mm respectively. As autumn sets in, precipitation levels increase further, mirroring the trend observed in past years where both October and November bring even heavier rainfall. The transition towards the colder months is evident, as September's rainfall serves as a precursor to the more persistent downpours found later in the season, highlighting the profound influence of Norway's maritime climate.

September Precipitation Trends in Leknes

The chart displays monthly precipitation patterns in Leknes, 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 Leknes, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec113931066949485583107127157131
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Leknes

In September, Leknes, Norway experiences a notable elevation in humidity, reaching 87%. This aligns closely with the annual trend, where the humidity sees a slight increase from the drier summer months of July and August, both hovering around 83%. As autumn approaches, the shift towards higher humidity levels is evident, bridging the gap from the warmer season to the chillier months ahead. Following September, the humidity remains relatively stable, with October and November also reporting 88% and 87%, respectively. This consistent humidity pattern emphasizes Leknes's maritime climate, where moisture levels are inherently high throughout the year.

September Average Humidity in Leknes

This chart illustrates the average monthly humidity levels in Leknes, 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 Leknes is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%85%83%77%82%83%83%87%88%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Leknes

In September, Leknes experiences a moderate UV Index of 3, signaling a notable transition as the summer months fade into autumn. This level of exposure translates to a burn time of approximately 30 minutes, prompting residents and visitors to stay mindful of sun safety. The UV Index has steadily decreased from its peak of 5 in July, reflective of the shorter days and lower sun angles characteristic of this time of year. As daylight diminishes, the lower UV levels means a reduction in risk, yet it's still essential to be vigilant, especially during midday hours. For a deeper dive into the UV trends throughout the year, check out the detailed report here: Leknes UV Index.

Maximum UV Index Levels in Leknes for September

The chart shows the monthly maximum UV Index (UVI) for Leknes 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 Leknes typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112345543110
Data source: Leknes 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 Leknes

September in Leknes, Norway, ushers in a beautiful transition from the vibrant summer days to the crispness of autumn, offering a remarkable 312 hours of sunshine. This month reflects a steady decline from the sun-drenched July and June, where the peak daylight hours are enjoyed, yet it still holds a generous amount of sunshine compared to the dreary winter months. As the days shorten and the vibrant colors of fall begin to emerge, September captures the last glimmers of long daylight hours, showcasing a natural rhythm that highlights nature's generosity before the sun retreats into the long shadows of October. This decline serves as a gentle reminder of the fleeting beauty of summer, setting the stage for the wintry months ahead.

Monthly Sunshine Duration in Leknes: September Highlighted

The September sunshine duration represents the total number of hours Leknes 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.
JanFebMarAprMayJunJulAugSepOctNovDec16h123h261h364h462h501h510h403h312h200h53h0h
Data source: Leknes September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Leknes During September

In Leknes, Norway, the likelihood of sunny weather in September hovers around 23%, a slight dip from the summer months. This trend reflects a gradual transition towards autumn, as the chance of sunshine consistently decreases from June's 28% through to October's 17%. While September may not boast the most favorable odds for sun-seekers, it still holds a charm of its own, with the crisp air and changing foliage offering a unique beauty. For those hoping to bask in the sun, it’s wise to keep expectations tempered as the days grow shorter and the clouds begin to gather.

Percentage of Sunny Days in September in Leknes

The chart illustrates the percentage of sunny days in Leknes 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 Leknes experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%24%25%36%39%28%22%25%23%17%20%27%
Data source: Leknes September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Leknes in September

In Leknes, Norway, September marks a significant transition in daylight duration, featuring approximately 13 hours of sunlight. This period follows the long, bright summer days of June and July, where the sun barely dips below the horizon, and begins to ease into the shorter, more subdued daylight offerings of autumn. The gradual decrease in daylight becomes more evident as September gives way to October's 9 hours, signaling the approach of winter's long nights, where December offers a mere 3 hours of daylight. As the seasons shift, September serves as a gentle reminder of nature's rhythms, blending the lingering warmth of summer with the crisp onset of fall.

Average Daylight Hours in Leknes for September

The chart illustrates the variation in daylight duration in Leknes throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 51m7h 43m11h 47m15h 53m21h 3m24h22h 43m17h 18m13h 7m9h 7m5h 27m3h 12m
Data source: Leknes daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Leknes

As September rolls in Leknes, Norway, it ushers in a moderate average wind speed of 7.4 m/s (17 mph), which maintains a steady course reminiscent of the summer months. Notably, September's winds are slightly stronger than August, which recorded its calmest periods at 6.1 m/s (14 mph). This mild uptick reflects a transition as the days begin to shorten and autumn sets in, preparing the landscape for the gustier conditions that October and November bring, with their wind speeds both exceeding 7.8 m/s (17 mph) and consistently climbing. The gentle embrace of September winds offers a perfect backdrop for outdoor exploration, hinting at the energetic shifts just around the corner in the coming months.

Average September Wind Speed in Leknes

The chart displays monthly wind speed patterns in Leknes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.58.79.08.26.96.27.56.17.4 m/s7.88.58.8
Data source: Leknes September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Leknes Compares to Other Months

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

In September, temperatures generally range from a mild 4°C (40°F) at night to a comfortable 15°C (60°F) during the day, averaging around 10°C (51°F). The month sees significant rainfall, with 107 mm (4.2 in) of precipitation spread over approximately 16 days, and humidity levels are relatively high at 87%. In contrast, January experiences much colder weather, with temperatures dropping to a minimum of -5°C (23°F) and peaking at about 8°C (47°F), leading to an average of just 2°C (36°F). This month also has slightly higher precipitation, totaling 113 mm (4.4 in) over 17 days, along with a marginally higher humidity at 89%. For a closer look at January weather specifics, check out Leknes weather in January.

September and February present contrasting weather conditions. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 15°C (60°F), with an average of 10°C (51°F). This month sees significant precipitation, totaling 107 mm (4.2 in) over 16 days, contributing to high humidity levels of 87%. In contrast, February experiences colder temperatures, with a minimum of -5°C (24°F) and a maximum of 7°C (45°F), averaging just 1°C (35°F). Precipitation in February is slightly lower at 93 mm (3.7 in) but occurs over more days, 17 in total, while humidity remains consistent at 87%. For a closer look at February weather, you can visit Leknes weather in February.

In comparing the weather of September and March, September offers milder temperatures, with an average of 10°C (51°F), peaking at 15°C (60°F), while March is notably colder, averaging just 2°C (35°F) and reaching a maximum of 7°C (46°F). Both months experience similar precipitation levels, with September receiving 107 mm (4.2 in) over 16 days and March almost matching that at 106 mm (4.2 in) over 21 days. Humidity levels are also quite close, hovering around 87% in September and slightly lower at 85% in March. For a closer look at March's specific conditions, you can check out Leknes weather in March.

When comparing the weather in September and April, we see notable differences in temperature and precipitation. In September, the temperatures are milder, with a minimum of 4°C (40°F) and an average of 10°C (51°F), reaching up to 15°C (60°F). This month also experiences higher precipitation, totaling 107 mm (4.2 in) over about 16 days, and humidity is fairly high at 87%. In contrast, April brings cooler conditions, with temperatures dipping to a minimum of -3°C (27°F) and averaging only 3°C (38°F), with a maximum of 8°C (47°F). April has less precipitation, at 69 mm (2.7 in) over around 15 days, and slightly lower humidity at 83%. For more detailed information on April weather, you can check Leknes weather in April.

In September, temperatures begin to cool down, with a minimum of 4°C (40°F) and a pleasant average of around 10°C (51°F), peaking at 15°C (60°F). The month is characterized by a significant amount of precipitation, totaling 107 mm (4.2 in) spread over 16 days, and high humidity at 87%. In contrast, May experiences milder conditions, with temperatures ranging from a minimum of 0°C (33°F) to an average of 5°C (42°F) and a maximum of 12°C (53°F). While May also sees some rain, it is noticeably less, with just 49 mm (1.9 in) over 12 days and a lower humidity level of 77%. Overall, September feels wetter and cooler compared to the crisp, relatively drier atmosphere of May. For more specific weather details, you can check Leknes weather in May.

In comparing the weather between September and June, we see some notable differences. September boasts slightly warmer temperatures with an average of 10°C (51°F) compared to June's 9°C (48°F). However, June has a slightly cooler minimum temperature at 3°C (38°F), while September dips to 4°C (40°F). Precipitation is significantly higher in September, totaling 107 mm (4.2 in) over 16 days, whereas June records only 48 mm (1.9 in) across 13 days. The humidity is also slightly higher in September at 87%, compared to June's 82%. Overall, September tends to be wetter and more humid, while June offers a cooler but drier climate. For a more detailed look at June's weather, visit Leknes weather in June.

In comparing the weather of September and July, we see notable differences in both temperature and precipitation. September experiences a broader temperature range, with minimums around 4°C (40°F) and maximums reaching 15°C (60°F), while July maintains warmer conditions with a steady range of 7°C (45°F) to 19°C (67°F). Additionally, September is significantly wetter, receiving 107 mm (4.2 in) of rainfall over 16 days compared to July's 55 mm (2.2 in) over just 10 days. Humidity levels also vary slightly, with September at 87% and July at 83%. For more detailed information on July weather patterns, you can check Leknes weather in July.

In comparing the weather between August and September, we see a notable drop in temperatures as September brings cooler conditions, with a minimum of 4°C (40°F) and a maximum of 15°C (60°F), compared to August's milder range of 8°C (47°F) to 18°C (65°F). Additionally, September experiences higher precipitation levels, accumulating 107 mm (4.2 in) over 16 days, contrasted with August's 83 mm (3.3 in) over 14 days. Humidity also rises slightly in September, averaging 87% compared to August's 83%. For more detailed information, you can check Leknes weather in August.

September and October present distinct contrasts in weather. September enjoys slightly milder temperatures, with an average of 10°C (51°F) and a maximum of 15°C (60°F), while October sees a drop in average temperature to 7°C (45°F) and a minimum of 2°C (35°F). Both months experience significant rain, but October tends to be wetter, accumulating 127 mm (5.0 in) of precipitation over 19 days compared to September's 107 mm (4.2 in) over 16 days. Humidity remains high in both months, with October just edging out at 88% compared to September’s 87%. For a more detailed look at the October weather, you can check Leknes weather in October.

September and November exhibit distinct weather characteristics, reflecting the transition from late summer to early winter. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 15°C (60°F), with an average of 10°C (51°F). The month sees around 107 mm (4.2 in) of precipitation over 16 days, accompanied by high humidity levels of 87%. By contrast, November experiences colder temperatures, with a minimum of -2°C (29°F) and a maximum of 11°C (51°F), averaging just 5°C (42°F). Precipitation increases to 157 mm (6.2 in) spread over 23 days, while humidity remains constant at 87%. For more details, you can check out this link: Leknes weather in November.

September and December showcase a notable shift in weather conditions. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 15°C (60°F), with an average of 10°C (51°F), while December sees colder temperatures, with a minimum of -4°C (25°F), an average of 3°C (38°F), and a maximum of 8°C (47°F). Additionally, September experiences 107 mm (4.2 in) of precipitation over 16 days, compared to December's 131 mm (5.2 in) over 20 days, marking a wetter month. Despite these changes, both months maintain a consistent humidity level of 87%. For more details on December conditions, you can check Leknes weather in December.

Compare Leknes's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Leknes

As summer transitions to autumn, September in Leknes showcases a notable shift in weather patterns. With cooler temperatures and increased humidity, this month brings a refreshing chill, inviting you to embrace cozy atmospheres. Rainfall becomes more frequent, with precipitation occurring on about half of the days, nurturing the vibrant landscapes typical of this time of year. Compared to the warmer, drier months of summer, September stands out for its alternating blend of crisp air and frequent rain, making it a unique experience worth exploring. Discover more about the seasonal changes in the region at Leknes Climate.