September Weather in Stryn, Norway

Last updated: August 27, 2025

In September, Stryn, Norway, experiences a remarkable transition as summer gives way to autumn. With a daily average temperature of 9°C (48°F), residents and visitors can expect a mix of mild days and cool evenings, reaching a maximum of 19°C (66°F) and dipping to a chilly -1°C (30°F) at night. However, the season also brings notable moisture, with 204 mm (8.0 in) of precipitation spread over 19 days, contributing to the lush, vibrant landscapes characteristic of this region. With humidity levels soaring to 93%, the air feels crisp and fresh, making September an intriguing time to explore the natural beauty of Stryn.

September Temperature in Stryn

As summer fades into autumn, September in Stryn, Norway marks a noticeable shift in temperatures. With minimums dipping to around -1°C (30°F) and an average of 9°C (48°F), the warmth of summer gives way to the crispness of fall. Daytime highs can reach 19°C (66°F), providing a brief window of pleasant weather before the chill deepens. This transitional month showcases the rapidly changing season, bridging the vibrant warmth of summer with the impending cool of autumn, making it a perfect time to experience Stryn's stunning landscapes amidst the changing colors.

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

The chart illustrates September temperature patterns in Stryn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stryn, 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).
JanFebMarAprMayJunJulAugSepOctNovDec272630344353555347403329
Data source: Temperature data for Stryn 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 Stryn

September in Stryn, Norway, marks a notable transition in precipitation, as the month experiences 204 mm (8.0 in) of rainfall over 19 days. This substantial increase from August's 168 mm not only highlights September as one of the wettest months of the year but also signals the onset of fall, where precipitation tends to peak. As the days grow shorter and temperatures drop, the combination of frequent rainfall and increasing dampness prepares the landscape for the approaching winter, which continues this trend with even higher totals in October. Overall, September serves as a pivotal bridge between the lushness of summer and the starkness of winter, setting the tone for the months to come.

September Precipitation Trends in Stryn

The chart displays monthly precipitation patterns in Stryn, 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 Stryn, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec18013316214194119145168204243163186
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Stryn

In Stryn, Norway, September marks a subtle shift in humidity as it rests at 93%, a slight dip from the sweltering summer months. Following the peak of 91% in August, the air begins to cool, hinting at the arrival of autumn. This trend reflects a gradual decrease from the highest levels seen in the frigid winter months, with January and February boasting remarkably high humidity levels of 98% and 96%, respectively. As the seasons transition, humidity declines steadily from early spring's 94% through to the more comfortable levels of late autumn, illustrating the region’s dynamic and moisture-laden climate. Overall, September's climate maintains a dampness that lingers from summer, setting the stage for the crisp air of October and beyond.

September Average Humidity in Stryn

This chart illustrates the average monthly humidity levels in Stryn, 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 Stryn 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 Stryn

As summer transitions into autumn in Stryn, Norway, September brings a moderate UV Index of 4, indicating a continued need for sun protection during outdoor activities. With a recommended burn time of 30 minutes, this month strikes a balance between the lingering warmth of summer and the approach of cooler days. Following the high indices of June and July, where UV levels peaked at 7, September marks a gradual decline in exposure risk, echoing the pattern seen as we move from the high summer months to the gentler conditions of fall. Travelers and locals alike should remain mindful and enjoy the stunning landscapes while taking appropriate sun safety measures. For more detailed insights, check the latest updates at Stryn UV Index.

Maximum UV Index Levels in Stryn for September

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

As summer gently gives way to autumn, September in Stryn, Norway, shines with approximately 250 hours of sunlight, a delightful transition from the vibrant days of July and August. This month captures a unique balance, showcasing the tail end of summer while hinting at the cooler months ahead. After basking in the warm glow of 438 hours in July and 352 hours in August, the sunlight begins to wane, yet September still offers a generous amount of daylight compared to the winter months. Observing the trend, there’s a gradual decline from the bright and lively lengthy days of summer, with September acting as a gentle reminder of the changing seasons, as daylight steadily decreases towards 183 hours in October and then further to a mere 43 hours by December. This captivating ebb and flow of light through the year paints a beautiful picture of life in Stryn, where each month brings its own charm and allure.

Monthly Sunshine Duration in Stryn: September Highlighted

The September sunshine duration represents the total number of hours Stryn 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.
JanFebMarAprMayJunJulAugSepOctNovDec56h157h233h321h421h406h438h352h250h183h103h43h
Data source: Stryn September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Stryn During September

In Stryn, Norway, September brings with it a meager 15% chance of sunny weather, positioning it as one of the less favorable months for sunlight. Following the warmer summer months, where chances hover around 28% in August, the opportunity for clear skies dwindles as autumn sets in. The trend of diminishing sunshine continues into October, further spiraling down to just 9%. This seasonal shift highlights the transition from the relatively bright summer months to the darker, cloudier days of autumn, making September a time when sun-seekers may want to adjust their expectations.

Percentage of Sunny Days in September in Stryn

The chart illustrates the percentage of sunny days in Stryn 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 Stryn experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%45%12%40%36%23%33%28%15%9%8%13%
Data source: Stryn September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Stryn in September

In Stryn, Norway, September marks a transitional phase in daylight duration, offering approximately 12 hours of light—a gentle step down from the summer’s peak. This month reflects the gradual shift from the long, sun-drenched days of June and July, which boast an impressive 19 hours, to the muted glow of autumn. As the days shorten, Stryn's landscape begins to transform, with the vibrant hues of fall setting in, creating a picturesque backdrop. Following September, daylight continues to wane, dropping to just 9 hours in October and a mere 5 hours in December. This cyclical rhythm showcases nature's constants, inviting residents and visitors alike to savor the fleeting brightness before winter envelops the region.

Average Daylight Hours in Stryn for September

The chart illustrates the variation in daylight duration in Stryn throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 16m8h 54m11h 51m14h 51m17h 43m19h 29m18h 30m15h 48m12h 51m9h 53m7h 3m5h 20m
Data source: Stryn daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Stryn

As September unfolds in Stryn, Norway, the winds begin to whisper a subtle shift, with an average speed of 1.4 m/s (3 mph). This gentle breeze marks a slight increase from the summer months, where winds lingered consistently at 1.3 m/s (3 mph). Unlike the brisk gales expected in the approaching autumn, September offers a more tranquil atmosphere as temperatures transition, allowing for peaceful outdoor moments while soaking in the stunning landscapes. As we look ahead, October appears poised to introduce stronger gusts, averaging 1.8 m/s (4 mph), heralding the arrival of more invigorating breezes that accompany the vibrant change of the season.

Average September Wind Speed in Stryn

The chart displays monthly wind speed patterns in Stryn, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.91.61.51.21.31.31.31.4 m/s1.81.71.9
Data source: Stryn September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Stryn Compares to Other Months

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

September and January exhibit stark contrasts in weather patterns. In September, temperatures range from a chilly -1°C (30°F) at night to a pleasant 19°C (66°F) during the day, with an average temperature of 9°C (48°F). The month sees considerable precipitation, totaling 204 mm (8.0 in) over 19 rainy days, alongside high humidity at 93%. In contrast, January is much colder, with temperatures plummeting to a minimum of -19°C (-2°F) and peaking at just 7°C (45°F), resulting in a much colder average of -3°C (27°F). Precipitation in January is slightly lower at 180 mm (7.1 in) but occurs over 16 days, and the humidity is even higher at 98%. For those interested in a detailed overview of January weather, you can check out Stryn weather in January.

September and February present significantly contrasting weather conditions. In September, temperatures range from a chilly minimum of -1°C (30°F) to a more pleasant maximum of 19°C (66°F), with an average of 9°C (48°F). The month sees considerable precipitation, totaling 204 mm (8.0 in) over 19 days, coupled with high humidity levels around 93%. Conversely, February is much colder, with temperatures dipping down to a minimum of -23°C (-9°F) and only reaching a daytime maximum of 8°C (46°F), averaging -3°C (26°F). While it has less precipitation at 133 mm (5.3 in) over 16 days, humidity remains high at 96%. For a deeper look at February weather, you can visit Stryn weather in February.

September and March present starkly contrasting weather conditions. September typically features milder temperatures, with a minimum of -1°C (30°F) and an average of 9°C (48°F), allowing for a maximum of 19°C (66°F). This month also experiences significant precipitation, totaling 204 mm (8.0 in) over 19 days, combined with high humidity at 93%. In contrast, March is marked by colder temperatures, with a minimum of -18°C (0°F) and an average of -1°C (30°F), peaking at a maximum of 11°C (51°F). While March has slightly less precipitation at 162 mm (6.4 in) over 21 days, the humidity remains similarly high at 94%. For more detailed information on March weather specifically, you can visit Stryn weather in March.

When comparing the weather in September and April, some notable differences emerge. September typically features milder temperatures, with an average of 9°C (48°F) and maximums reaching 19°C (66°F), while April sees cooler conditions with an average of just 1°C (34°F) and a maximum of 17°C (63°F). Precipitation is more pronounced in September, accumulating to 204 mm (8.0 in) over 19 days, compared to April's 141 mm (5.5 in) over 15 days. Additionally, the humidity remains relatively high in both months, with September at 93% and April slightly lower at 89%. For a more detailed overview, check out Stryn weather in April.

September and May present contrasting weather patterns. In September, temperatures range from a chilly minimum of -1°C (30°F) to a maximum of 19°C (66°F), with an average of 9°C (48°F). The month is characterized by significant precipitation, totaling 204 mm (8.0 in) over 19 days and accompanied by high humidity levels of 93%. In contrast, May features a broader temperature range, with a minimum of -8°C (17°F) and a maximum of 24°C (76°F), averaging at 6°C (44°F). This month sees considerably less rainfall, with 94 mm (3.7 in) spread over 16 days and slightly lower humidity at 86%. For more detailed information, check Stryn weather in May.

September and June present stark contrasts in weather. September tends to be cooler, with average temperatures ranging from a brisk 9°C (48°F) to a maximum of 19°C (66°F), while June boasts milder temperatures, peaking at 25°C (78°F) and averaging 12°C (53°F). Additionally, September experiences more precipitation, totaling 204 mm (8.0 in) over 19 days, compared to June's 119 mm (4.7 in) over 16 days. Humidity levels are also higher in September at 93%, compared to June's 83%. For more details, check out Stryn weather in June.

When comparing the weather in September and July, notable differences emerge. September tends to be cooler, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 19°C (66°F), averaging around 9°C (48°F). It also experiences higher precipitation at 204 mm (8.0 in) over 19 rainy days, alongside increased humidity at 93%. In contrast, July is much warmer, with temperatures between 1°C (34°F) and 28°C (83°F), averaging 13°C (56°F). July's precipitation is lower at 145 mm (5.7 in) over 17 days, with somewhat less humidity at 87%. For a closer look at July's conditions, you can check out the details here: Stryn weather in July.

September's weather contrasts notably with that of August. While August typically experiences milder temperatures, with a minimum of 3°C (38°F) and a maximum of 24°C (75°F), September sees a drop in temperatures, with minimums plunging to -1°C (30°F) and maximums capping at 19°C (66°F). The average temperature in August is 12°C (54°F), compared to just 9°C (48°F) in September. Additionally, September is much wetter, accumulating 204 mm (8.0 in) of precipitation over 19 days, compared to 168 mm (6.6 in) during the same number of days in August. Humidity levels also rise slightly in September to 93%, compared to 91% in August. For more detailed insights about August weather, visit Stryn weather in August.

In September, the weather features milder temperatures with a minimum of -1°C (30°F), an average of 9°C (48°F), and a maximum of 19°C (66°F). The month experiences significant precipitation, totaling 204 mm (8.0 in) over 19 days, accompanied by high humidity levels of 93%. In contrast, October sees a deeper drop in temperatures, with a minimum of -13°C (9°F) and an average of 4°C (40°F), while the maximum temperature is slightly lower at 17°C (62°F). Precipitation increases to 243 mm (9.6 in) over 22 days, with humidity rising slightly to 95%. For more details on October weather, you can check Stryn weather in October.

September and November exhibit distinctly different weather patterns. In September, temperatures range from a chilly minimum of -1°C (30°F) to a mild maximum of 19°C (66°F), with an average of 9°C (48°F). The month sees significant rainfall, totaling 204 mm (8.0 in) over approximately 19 days, and high humidity levels at 93%. In contrast, November experiences colder temperatures, with a minimum of -13°C (8°F) and an average of 0°C (33°F), peaking at 11°C (51°F). It is relatively drier than September, with precipitation of 163 mm (6.4 in) over just 15 days, yet humidity rises to a notable 97%. For more detailed information about the weather in November, you can check Stryn weather in November.

September and December present contrasting weather conditions. In September, temperatures range from a minimum of -1°C (30°F) to a maximum of 19°C (66°F), with an average temperature of 9°C (48°F). The month experiences significant rainfall, totaling 204 mm (8.0 in) over 19 days, accompanied by high humidity at 93%. In contrast, December is much colder, with temperatures varying from -14°C (7°F) to a maximum of 8°C (46°F), and an average of -2°C (29°F). While precipitation is slightly lower at 186 mm (7.3 in) over the same number of days, the humidity is even higher at 97%. For more detailed information, you can check out Stryn weather in December.

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Conclusion: What to Expect From September Weather in Stryn

As September unfolds in Stryn, the weather brings a notable change from the previous summer months. Temperatures gradually drop, offering a maximum of 19°C during the day, while cooler nights can dip down to -1°C. This transition marks the shift from lingering warmth to a more brisk autumn feel, enhanced by the high humidity at 93%. Rainfall is also more frequent, with 204 mm spread over 19 days, making it one of the wetter months of the year. This combination of cooler temperatures and increased precipitation sets the stage for the breathtaking autumn scenery that Stryn is famous for. For a deeper understanding of what to expect throughout the year, visit Stryn Climate.