September Weather in Kaupanger, Norway

Last updated: August 27, 2025

Experience the vibrant September weather in Kaupanger, Norway, where nature transitions into autumn's embrace. Averaging a crisp 9°C (49°F), temperatures peak at a pleasant 19°C (66°F), providing a refreshing atmosphere ideal for outdoor exploration. As the month progresses, expect around 180 mm (7.1 in) of rainfall spread over 19 days, contributing to the lush, green landscapes. With humidity levels reaching a notable 93%, the air feels rich and invigorating, enhancing the charm of this picturesque location. Whether you’re hiking through scenic fjords or enjoying the serene views, Kaupanger in September offers a delightful mix of climate and natural beauty.

September Temperature in Kaupanger

September in Kaupanger, Norway, marks a gentle transition from the warmth of summer to the crispness of autumn. As temperatures begin to cool, the minimum dips to 0°C (33°F), while the average settles around a comfortable 9°C (49°F). The peak temperature during this month reaches a pleasant 19°C (66°F), perfect for enjoying the changing foliage. This month stands out as a time when the days are still mild enough to relish outdoor activities, but hints of winter are just around the corner, evidenced by the noticeable decline in warmth compared to the previous months. Overall, September in Kaupanger offers a refreshing yet mild climate, inviting visitors to bask in the breathtaking beauty of Norway's fall season.

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

The chart illustrates September temperature patterns in Kaupanger, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kaupanger, 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).
JanFebMarAprMayJunJulAugSepOctNovDec252529364655585548403226
Data source: Temperature data for Kaupanger 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 Kaupanger

September marks a notable shift in Kaupanger, Norway, as the precipitation levels soar to 180 mm (7.1 in), making it one of the wettest months of the year. This increase is accompanied by 19 rainy days, reflecting a trend of heightened rainfall as autumn approaches. Compared to the drier summer months, where precipitation hovered around 80-136 mm, September's downpour prepares the landscape for the impending transition into winter. The steady rise in rainfall continues into October, which sees the highest monthly total at 189 mm (7.4 in), indicating a consistent pattern of increased precipitation as the season evolves. This trend underscores the region's shift towards cooler and wetter weather, essential for nurturing the lush Norwegian countryside.

September Precipitation Trends in Kaupanger

The chart displays monthly precipitation patterns in Kaupanger, 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 Kaupanger, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1361071309281106104136180189142150
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kaupanger

In September in Kaupanger, Norway, the humidity settles at a moderate 93%, marking a slight uptick from the drier summer months. After peaking during the chillier winter months at 98% in January and gradually declining to 83% in June, the humidity begins its ascent once more as autumn approaches. This trend reflects the transitional nature of September, where lingering warmth from summer intersects with the onset of cooler temperatures. While it remains less humid than the peak summer and winter months, the humidity in September sets the stage for the wetter autumn days ahead, offering a unique blend of crisp air and lingering moisture.

September Average Humidity in Kaupanger

This chart illustrates the average monthly humidity levels in Kaupanger, 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 Kaupanger is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec98%96%94%90%87%83%87%91%93%95%97%97%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kaupanger

In September, Kaupanger experiences a moderate UV Index of 4, indicating a slight decrease from the high levels seen in the summer months. As the days begin to shorten and the outdoor temperatures gradually cool, sun exposure remains manageable with a recommended burn time of 30 minutes. This trend highlights a shift towards lower UV levels as autumn approaches, providing a comfortable opportunity for residents and visitors to enjoy outdoor activities while remaining mindful of sun safety. For more details, check out the Kaupanger UV Index.

Maximum UV Index Levels in Kaupanger for September

The chart shows the monthly maximum UV Index (UVI) for Kaupanger 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 Kaupanger typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567754211
Data source: Kaupanger 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 Kaupanger

As summer gracefully gives way to autumn, September in Kaupanger, Norway, offers a delightful blend of sunshine and transition. With 226 hours of sunlight, this month marks a gentle decline from the sun-soaked heights of July, which enjoyed an impressive 438 hours. The shift is evident as the warmth of summer starts to fade, leading into the cooler months with fewer daylight hours. Notably, September retains its charm, standing out as a vibrant time where the golden hues of early fall illuminate the landscape, echoing the fullness of summer while hinting at the approaching winter. As the days grow shorter, they still hold a captivating beauty, making September an enchanting time to experience Kaupanger's natural splendor.

Monthly Sunshine Duration in Kaupanger: September Highlighted

The September sunshine duration represents the total number of hours Kaupanger 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.
JanFebMarAprMayJunJulAugSepOctNovDec49h142h227h336h405h399h438h358h226h161h78h39h
Data source: Kaupanger September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kaupanger During September

In Kaupanger, Norway, the likelihood of sunny weather takes a noticeable dip in September, with only a 13% chance of sunshine. This marks a significant decline from the more promising months of late spring and summer, where chances hovered around the mid-30s to 42%. As autumn approaches, September feels more closely aligned with the cloudier conditions seen in the latter part of the year, with October and November only slightly behind at 12% and 11% respectively. Overall, those hoping for clear skies in September may need to prepare for overcast days as the region transitions into the cooler fall season.

Percentage of Sunny Days in September in Kaupanger

The chart illustrates the percentage of sunny days in Kaupanger 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 Kaupanger experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%37%19%42%36%29%37%37%13%12%11%15%
Data source: Kaupanger September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kaupanger in September

As summer transitions into autumn in Kaupanger, Norway, September marks a gentle decline in daylight hours, offering about 12 hours of sunlight each day. This gradual shift follows the vibrant, sun-soaked months of June and July, where daylight peaks at a remarkable 19 hours. While still basking in a generous amount of light, September lays the groundwork for the shorter days ahead, with daylight diminishing as October approaches. This month serves as a beautiful reminder of nature's cycles, embodying both the lingering warmth of summer and the impending embrace of fall, a time when the balance between light and dark begins to shift.

Average Daylight Hours in Kaupanger for September

The chart illustrates the variation in daylight duration in Kaupanger throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 29m9h11h 51m14h 46m17h 31m19h 9m18h 15m15h 41m12h 49m9h 57m7h 13m5h 36m
Data source: Kaupanger daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kaupanger

As September arrives in Kaupanger, Norway, the gentle embrace of the wind begins to reflect the transition into autumn. With an average wind speed of 1.3 m/s (about 3 mph), September experiences a slight uptick from the calm breezes of summer, signaling nature’s shift. This subtle change highlights a trend where the wind begins to pick up slightly, with a gradual increase noted from the softest speeds earlier in the year. In this picturesque setting, the September breeze carries the scent of falling leaves and the promise of autumnal beauty, inviting residents and visitors alike to relish the serene yet invigorating ambiance of the changing season.

Average September Wind Speed in Kaupanger

The chart displays monthly wind speed patterns in Kaupanger, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.81.41.31.11.21.21.21.3 m/s1.41.41.7
Data source: Kaupanger September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kaupanger Compares to Other Months

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

In September, the weather is considerably milder with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 19°C (66°F), accompanied by an average of 9°C (49°F). The month sees significant precipitation at 180 mm (7.1 in) over 19 days, and the humidity levels are high at 93%. In contrast, January brings much colder conditions, with temperatures dipping as low as -23°C (-9°F) and averaging -4°C (25°F), reaching a maximum of just 7°C (44°F). Although January has less overall precipitation at 136 mm (5.4 in) across 16 days, the humidity is slightly higher at 98%. For more details on January weather, you can visit Kaupanger weather in January.

September and February present markedly different weather patterns. In September, temperatures range from a minimum of 0°C (33°F) to a maximum of 19°C (66°F), with an average of 9°C (49°F). The month experiences significant precipitation, with about 180 mm (7.1 in) falling over 19 days, coupled with a high humidity level of 93%. In contrast, February is much colder, with temperatures ranging from a minimum of -27°C (-17°F) to a maximum of 8°C (47°F), averaging -4°C (25°F). Although it sees less precipitation at 106 mm (4.2 in) over 16 days, the humidity is slightly higher at 96%. For more detailed weather information, you can check Kaupanger weather in February.

In comparing the weather of September and March, one can observe notable differences in temperature and precipitation patterns. September experiences milder temperatures, with a minimum of 0°C (33°F) and an average of 9°C (49°F), peaking at a comfortable 19°C (66°F). However, it also sees a higher total precipitation of 180 mm (7.1 in) over 19 days and a humidity level of 93%. In contrast, March is much colder, with temperatures plummeting to a minimum of -19°C (-2°F) and an average of -2°C (30°F), rising only to a maximum of 9°C (49°F). While March has a lower overall precipitation of 130 mm (5.1 in) over 20 days, the humidity remains slightly higher at 94%. For more detailed insights, check out Kaupanger weather in March.

When comparing the weather in September and April, notable differences emerge. September typically sees a milder climate with average temperatures around 9°C (49°F), peaking at 19°C (66°F), while April experiences cooler conditions, with an average of just 2°C (36°F) and a maximum of 16°C (61°F). Additionally, September is marked by higher precipitation, averaging 180 mm (7.1 in) over 19 days, compared to April's 92 mm (3.6 in) across 15 days. Humidity levels are relatively high in both months, with September at 93% and April at 89%. For a closer look at April weather conditions, you can visit Kaupanger weather in April.

When comparing the weather of September and May, notable differences emerge. September generally features milder temperatures, with averages around 9°C (49°F) and maximums reaching up to 19°C (66°F), while May offers a broader temperature range, with an average of 8°C (46°F) but highs soaring to 26°C (79°F). Precipitation is significantly higher in September, totaling 180 mm (7.1 in) over 19 days, compared to May’s 81 mm (3.2 in) across 16 days. Humidity levels remain relatively high in both months, but September's average of 93% slightly surpasses May's 86%, creating a more humid atmosphere as summer transitions to fall. For more detailed insights, you can check Kaupanger weather in May.

In comparing the weather between September and June, one can observe notable differences in temperature and precipitation. September experiences cooler temperatures, with a minimum of 0°C (33°F) and an average of 9°C (49°F), while June offers warmer conditions, with temperatures ranging from a minimum of 2°C (35°F) to an average of 13°C (55°F) and a maximum reaching 26°C (79°F). Precipitation is heavier in September, totaling 180 mm (7.1 in) over 19 days, compared to June's 105 mm (4.2 in) over 15 days. Additionally, September boasts higher humidity at 93%, while June remains a bit less humid at 83%. For a closer look at what to expect, check out Kaupanger weather in June.

In comparing the weather of September and July, we see notable differences in temperature and precipitation patterns. September features cooler temperatures with a minimum of 0°C (33°F) and an average of 9°C (49°F), while July enjoys warmer conditions, boasting a minimum of 1°C (33°F) and an average of 14°C (58°F). Maximum temperatures in July can reach up to 28°C (83°F), compared to September's maximum of just 19°C (66°F). Additionally, September experiences higher precipitation, accumulating 180 mm (7.1 in) over 19 days, compared to July’s 104 mm (4.1 in) over 15 days. The humidity levels are also slightly higher in September at 93%, compared to July at 87%. For a more detailed look at July weather, you can check Kaupanger weather in July.

In comparing the weather between August and September, it's clear that September experiences cooler temperatures, with minimums dropping to 0°C (33°F) compared to August's mild 3°C (38°F). The average temperature also decreases from 13°C (56°F) in August to 9°C (49°F) in September, and the maximums reflect a similar trend, falling from 24°C (75°F) in August to 19°C (66°F). Additionally, September is wetter, with precipitation reaching 180 mm (7.1 in) over 19 days, while August has less rainfall at 136 mm (5.4 in) over the same number of days. Humidity remains high in both months, with September slightly higher at 93% compared to August's 91%. For more detailed insights, you can check Kaupanger weather in August.

September and October present notable differences in weather conditions. September experiences milder temperatures with a minimum of 0°C (33°F) and an average of 9°C (49°F), peaking at 19°C (66°F). In contrast, October ushers in colder weather, with temperatures dropping to a minimum of -11°C (13°F) and an average of 5°C (41°F), while the maximum only reaches 16°C (61°F). In terms of precipitation, October sees a slight increase, totaling 189 mm (7.4 in) over 23 days compared to September's 180 mm (7.1 in) over 19 days. Humidity levels also rise slightly in October to 95%, up from 93% in September. For a more detailed look at October weather, check out Kaupanger weather in October.

September typically features milder temperatures, with averages around 9°C (49°F) and a maximum reaching 19°C (66°F), making it a more comfortable month overall. However, it also experiences considerable humidity at 93% and substantial rainfall, with 180 mm (7.1 in) over 19 days. In contrast, November marks a significant drop in temperatures, averaging around 0°C (32°F) with lows plunging to -19°C (-2°F) and highs peaking at only 9°C (49°F). The month sees slightly less precipitation, totaling 142 mm (5.6 in) over 16 days, but the humidity increases to 97%. For a closer look at Kaupager's weather in November, you can refer to Kaupanger weather in November.

September and December present a stark contrast in weather conditions. In September, temperatures range from a minimum of 0°C (33°F) to a maximum of 19°C (66°F), with an average of about 9°C (49°F). The month sees significant precipitation, totaling 180 mm (7.1 in) over 19 days, and humidity levels hover around 93%. Conversely, December is much colder, featuring a dramatic drop in temperatures with a minimum of -21°C (-5°F) and an average of -3°C (26°F), peaking at just 6°C (44°F). Although December experiences slightly less precipitation at 150 mm (5.9 in) over the same number of days, the humidity increases to 97%. For more details on December weather, check out Kaupanger weather in December.

Compare Kaupanger's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kaupanger

As September settles in Kaupanger, the weather shifts noticeably, offering a unique character compared to the warmer summer months. With average temperatures dropping to a cool 9°C, the crisp air heralds the transition into autumn. This month, known for its abundant rainfall, sees about 19 days of precipitation, resulting in a humid atmosphere that often feels refreshing yet brisk. Gone are the long, sunny days of summer, replaced by a blend of cooling temperatures and frequent showers that invite cozy indoor activities and vibrant fall foliage. To explore more about how these changing conditions shape the local climate, visit Kaupanger Climate.