September Weather in Drobak, Norway

Last updated: August 27, 2025

September in Drobak, Norway offers a fascinating blend of early autumn weather, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 26°C (79°F). This month sees an average temperature of 13°C (55°F), making it a transitional period as summer yields to the cooler days ahead. Rainfall is quite notable, with 102 mm (4.0 in) of precipitation spread over 12 days, resulting in an overall humidity level of 86%. Visitors can expect a mix of vibrant autumn colors along with occasional rainy spells, creating a picturesque yet unpredictable climate perfect for exploration.

September Temperature in Drobak

In September, Drobak, Norway, begins to transition from the warmth of summer to the cool embrace of autumn. With temperatures ranging from a chilly 1°C (34°F) at night to a pleasant 26°C (79°F) during the day, the month offers a delightful mix of cool breezes and sunny afternoons. The average temperature settles at a comfortable 13°C (55°F), making it an ideal time for outdoor activities and enjoying the vibrant fall foliage. As the days gradually shorten and temperatures drop, September serves as a gentle reminder of the changing seasons, marking the shift from the summer heat of July and August to the crispness that characterizes October. This month beautifully balances warmth and coolness, encouraging both relaxation and exploration in the stunning Norwegian landscape.

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

The chart illustrates September temperature patterns in Drobak, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Drobak, 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).
JanFebMarAprMayJunJulAugSepOctNovDec292935435262656255463831
Data source: Temperature data for Drobak 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 Drobak

September in Drobak, Norway, marks a notable uptick in precipitation as summer transitions to autumn. With 102 mm (4.0 in) of rainfall over 12 days, this month stands out as the wettest so far this year, exceeding the monthly totals of July and August. The increase in both precipitation amount and rainy days signals a shift in weather patterns, foreshadowing the even wetter months ahead. As the lush landscapes prepare for the briskness of fall, September's rains contribute significantly to the vibrant greenery that characterizes Drobak, setting the stage for the dramatic seasonal changes that follow.

September Precipitation Trends in Drobak

The chart displays monthly precipitation patterns in Drobak, 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 Drobak, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec5863633578799384102123103102
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Drobak

September in Drobak, Norway, presents a noticeable shift in humidity levels as summer gives way to autumn. With humidity at 86%, it marks a significant rise from the more temperate summer months, where humidity hovered around 71% to 77%. This increase reflects a broader trend of gradually escalating humidity levels as the year progresses, peaking in the winter months—January and February see notably high humidity levels at 94% and 92%, respectively. The transition from the drier air of May and June is clear, as the atmosphere becomes more saturated in preparation for the chillier months ahead. Overall, September serves as a reminder of nature's cyclical patterns, blending warmth with the impending freshness of autumn.

September Average Humidity in Drobak

This chart illustrates the average monthly humidity levels in Drobak, 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 Drobak is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%89%82%73%71%72%77%86%92%93%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Drobak

As September rolls into Drobak, Norway, the UV Index sees a slight decline, resting at 4, which falls into the moderate exposure category. This shift from the high levels of July and June, where the UV Index peaked at 7, signals a transition to cooler days and shorter sunlight hours. With a burn time of 30 minutes, it's still crucial to protect your skin, especially during midday when the sun's rays are strongest. As nature prepares for autumn, residents and visitors alike should stay informed about UV levels, making sure to enjoy the remaining warm days safely. For more details on UV exposure in Drobak, visit Drobak UV Index.

Maximum UV Index Levels in Drobak for September

The chart shows the monthly maximum UV Index (UVI) for Drobak 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 Drobak typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Drobak 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 Drobak

As summer wanes into autumn, September in Drobak, Norway, offers a gentle transition, with 283 hours of sunshine illuminating the shifting landscape. While this marks a decrease from the sun-drenched peaks of July (473 hours) and August (404 hours), it still portrays a brighter picture compared to the darker months ahead. April's bright start, with 373 hours, echoes throughout the summer months, showcasing a gradual ascent to peak brightness. As daylight diminishes, the lingering warmth of September invites residents and visitors alike to savor the golden hues of autumn, reminding us that even in the face of declining sun hours, the beauty of Drobak remains ever vibrant.

Monthly Sunshine Duration in Drobak: September Highlighted

The September sunshine duration represents the total number of hours Drobak 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.
JanFebMarAprMayJunJulAugSepOctNovDec91h179h289h373h421h455h473h404h283h225h134h98h
Data source: Drobak September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Drobak During September

In Drobak, Norway, the likelihood of sunny weather in September takes a noticeable dip, with only a 26% chance of sunshine gracing the month. This is part of a trend that sees sunshine chances rising through the early spring months, peaking in April at 56%, before gradually declining as the year progresses towards winter. Interestingly, after the summer months—where July boasts a 44% chance of sun—September marks a shift to more overcast conditions, reflecting the transition into autumn. With the days getting shorter and the weather cooling, September often serves as a reminder that the vibrant sunlit days of summer are dwindling, making those rare sunny moments all the more cherished.

Percentage of Sunny Days in September in Drobak

The chart illustrates the percentage of sunny days in Drobak 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 Drobak experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%43%41%56%28%38%44%35%26%30%21%27%
Data source: Drobak September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Drobak in September

As September unfolds in Drobak, Norway, daylight duration begins its gentle descent from the summer highs of 18 hours in June to a more moderate 12 hours. This month marks a transitional phase, where the vibrant energy of summer gradually gives way to the golden hues of autumn. Echoing the patterns of previous months, September offers a balance between light and dark—a far cry from the long, sun-drenched days of June and July, yet significantly brighter than the depths of winter to come. With daylight decreasing steadily towards October’s 10 hours, nature prepares to welcome the crisp, shorter days ahead, inviting a cozy atmosphere that is quintessentially Scandinavian.

Average Daylight Hours in Drobak for September

The chart illustrates the variation in daylight duration in Drobak throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 53m9h 11m11h 52m14h 35m17h 7m18h 34m17h 46m15h 26m12h 46m10h 5m7h 33m6h 6m
Data source: Drobak daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Drobak

As September arrives in Drobak, Norway, the winds remain gentle, with an average speed of 2.5 m/s (6 mph), reminiscent of the previous summer months. This slight dip from August's 2.6 m/s reflects the gradual transition towards autumn. Throughout the year, the wind speeds display a subtle fluctuation, peaking in October at 3.3 m/s (7 mph) as the seasons change. The summer months generally trend towards calmer breezes, while the brisk autumn invites a refreshing surge. In essence, September encapsulates this gentle shift, maintaining its mildness before the winds pick up, heralding the cooler months ahead.

Average September Wind Speed in Drobak

The chart displays monthly wind speed patterns in Drobak, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.72.72.63.02.42.42.32.62.5 m/s3.32.72.3
Data source: Drobak September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Drobak Compares to Other Months

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

In September, the weather is characterized by a much milder climate, with temperatures ranging from a minimum of 1°C (34°F) to a pleasant maximum of 26°C (79°F), leading to an average of 13°C (55°F). However, this month also experiences substantial rainfall, with 102 mm (4.0 in) spread over approximately 12 days and high humidity at 86%. In stark contrast, January brings colder conditions, featuring temperatures that can drop as low as -18°C (-1°F) and average around -2°C (29°F), with a maximum of only 9°C (49°F). This month sees less precipitation, totaling 58 mm (2.3 in) over about 9 days, but the humidity is notably high at 94%. For a detailed overview of January weather, you can check Drobak weather in January.

September and February present strikingly contrasting weather conditions. In September, temperatures range from a chilly 1°C (34°F) to a warm 26°C (79°F), with an average of 13°C (55°F). The month experiences around 102 mm (4.0 in) of precipitation over 12 days, accompanied by relatively high humidity at 86%. In sharp contrast, February is marked by much colder temperatures, with a minimum of -18°C (0°F) and a maximum of just 10°C (50°F), averaging -2°C (30°F). Precipitation is lower in February at 63 mm (2.5 in) over 10 days, but the humidity peaks at 92%. For more information, check out Drobak weather in February.

In comparing the weather of September and March, we see significant differences in temperature and precipitation. September enjoys a milder range, with average temperatures around 13°C (55°F) and a maximum of 26°C (79°F), contrasted by March's chillier conditions, where temperatures typically average just 1°C (35°F) and can drop as low as -15°C (4°F). While September also experiences more rainfall, totaling 102 mm (4.0 in) over 12 days, March sees less precipitation at 63 mm (2.5 in) across 9 days. Despite the drier conditions in March, the humidity remains high at 89%, slightly edging out September's 86%. For more detailed insights, check out Drobak weather in March.

In comparing the weather of September and April, we see distinct differences in temperature and precipitation patterns. September generally offers milder temperatures, ranging from a minimum of 1°C (34°F) to a comfortable maximum of 26°C (79°F), with an average of 13°C (55°F). In contrast, April starts off quite chilly, with lows reaching -12°C (11°F) and averages around 6°C (43°F), peaking at 23°C (74°F). Additionally, September is significantly wetter, with 102 mm (4.0 in) of precipitation over 12 days, while April sees much less rain at 34 mm (1.4 in) across 5 days. Humidity levels are slightly higher in September at 86%, compared to April's 82%. For a closer look at the conditions during this spring month, you can refer to Drobak weather in April.

September and May present distinct weather characteristics. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 26°C (79°F), with an average of 13°C (55°F). The month sees more rainfall, with 102 mm (4.0 in) falling over 12 days and a notably high humidity of 86%. In contrast, May experiences slightly cooler temperatures, where the minimum dips to -1°C (30°F) and the maximum reaches 31°C (88°F), with an average temperature of 11°C (52°F). Precipitation in May is lower at 78 mm (3.1 in) across 11 days, along with a lower humidity of 73%. For more details on May weather, you can check Drobak weather in May.

September and June showcase distinct weather patterns, reflecting the transition from summer to autumn. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 26°C (79°F), with an average of 13°C (55°F). The month experiences significant precipitation, totaling 102 mm (4.0 in) over about 12 days, contributing to a high humidity level of 86%. In contrast, June features warmer conditions, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 31°C (88°F) and an average of 17°C (62°F). This month receives 79 mm (3.1 in) of precipitation over the same number of days, but with a notably lower humidity of 71%. For more detailed information on the weather during this month, you can check Drobak weather in June.

In comparing the weather between September and July, we see notable differences in temperature and humidity levels. September experiences a broader temperature range, from a chilly 1°C (34°F) at night to a comfortable 26°C (79°F) during the day, averaging around 13°C (55°F). In contrast, July is notably warmer, with nighttime lows of 8°C (47°F) and daytime highs reaching 34°C (93°F), averaging 18°C (65°F). Additionally, September tends to be more humid at 86%, compared to July's lower humidity of 72%, creating a more oppressive feel as the summer winds down. Interestingly, while both months have similar levels of precipitation—102 mm (4.0 in) in September compared to 93 mm (3.7 in) in July—September has slightly more rainy days with 12, versus 11 in July. For more specific information about July weather, check out Drobak weather in July.

In September, the weather tends to be cooler than in August, with minimum temperatures dropping to 1°C (34°F) compared to August's 6°C (44°F). The average temperature also sees a decrease, going from 16°C (62°F) in August to 13°C (55°F) in September, and the maximum temperature is slightly lower as well, at 26°C (79°F) versus 29°C (84°F) in August. Additionally, September experiences more precipitation, totaling 102 mm (4.0 in) over 12 days, while August sees 84 mm (3.3 in) over just 11 days. The humidity increases in September to 86%, higher than August's 77%. For more detailed insights, you can check Drobak weather in August.

September typically offers a mild climate with average temperatures around 13°C (55°F), peaking at a maximum of 26°C (79°F) during the warmest days. However, as we transition into October, the weather becomes considerably cooler, with average temperatures dropping to 8°C (46°F) and nighttime lows reaching as low as -3°C (26°F). Additionally, October tends to be wetter, receiving about 123 mm (4.8 in) of precipitation over 15 days compared to September's 102 mm (4.0 in) over 12 days. The humidity also rises slightly in October, reaching 92%, making it feel a bit more damp. For a detailed look at the October weather patterns, you can visit Drobak weather in October.

Comparing September and November weather reveals a significant transition as autumn progresses towards winter. In September, temperatures typically range from a milder minimum of 1°C (34°F) to a comfortable maximum of 26°C (79°F), with an average of 13°C (55°F). The month sees a considerable amount of rainfall, accumulating to 102 mm (4.0 in) over about 12 days, all while maintaining a relatively high humidity of 86%.

In contrast, November brings cooler temperatures, with a minimum dipping to -8°C (17°F) and an average of only 3°C (38°F). The maximum temperature is more modest at 14°C (58°F). Rainfall remains consistent, with 103 mm (4.0 in) recorded over 13 days, though humidity rises slightly to 93%. This shift in weather underscores the move from the remnants of mild autumn into the chill of late fall, making November feel decidedly more wintry. To learn more about the weather in November, you can check out Drobak weather in November.

September and December present stark contrasts in weather. In September, temperatures range from a mild 1°C (34°F) at night to a comfortable 26°C (79°F) during the day, with an average of 13°C (55°F). The month experiences moderate precipitation, with 102 mm (4.0 in) falling over 12 days and humidity levels at 86%. In contrast, December brings much colder conditions, with temperatures dropping as low as -13°C (9°F) and averaging around -1°C (31°F). The maximum temperature is only 8°C (47°F), and precipitation remains consistent at 102 mm (4.0 in) but occurs over 15 days, accompanied by a higher humidity level of 93%. For a closer look at December conditions, check out Drobak weather in December.

Compare Drobak's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Drobak

As September unfolds in Drobak, the weather marks a transition from the warmth of summer to the cooler embrace of autumn. With average temperatures dipping at both ends of the spectrum, this month introduces brisk mornings and refreshing evenings. The increased humidity and noticeable precipitation hint at the coming rainy season, creating a unique atmosphere where vibrant fall foliage begins to emerge. Unlike the warmer months, September's weather brings a blend of crisp air and occasional downpours, making it a perfect time to enjoy the town's cozy charm. For a more detailed exploration of Drobak's climate, visit Drobak Climate.