Last updated: August 27, 2025
In Selje, Norway, September experiences a blend of refreshing coolness and significant rainfall, making it a captivating month for visitors. The maximum temperature peaks at a mild 18°C (64°F) while the average hovers around 12°C (53°F), offering a crisp atmosphere. As temperatures dip to a minimum of 5°C (42°F), the region showcases its enchanting natural beauty. With 338 mm (13.3 in) of precipitation spread over 20 days, expect frequent, refreshing showers, contributing to the lush landscapes characteristic of this coastal gem. Coupled with a humidity level of 93%, the September weather in Selje truly embodies the essence of the Norwegian coast, inviting adventurers to embrace the elements.
In September, Selje, Norway transitions gently from the warm summer months to the cooler autumn season. With minimum temperatures around 5°C (42°F) and average highs reaching 18°C (64°F), the weather is pleasantly crisp, making it an ideal time for outdoor exploration. This month stands out as a bridge between the vibrant summer warmth and the upcoming chill of October, where temperatures drop to an average of 9°C (48°F). The moderate climate invites both locals and tourists to enjoy the stunning landscapes, as the scenery begins to shift into the rich hues of fall. Overall, September in Selje offers a delightful blend of warmth and coolness, perfect for experiencing the natural beauty of this Norwegian gem.
In September, Selje, Norway, experiences a significant uptick in precipitation, with an average of 338 mm (13.3 in) falling over 20 days. This marks the wettest month of the year, following a relatively dry summer, where rainfall peaked in August at 190 mm (7.5 in). The transition into autumn brings not only more rain but also a shift in the frequency of precipitation days, as September ties with January, both featuring 20 days of rain. This increase highlights the region's move from the brief summer respite into the robust, moisture-laden embrace of fall. As October follows closely with 326 mm (12.8 in), it becomes evident that Selje's weather pattern is defined by a pronounced seasonal rhythm, with September serving as a harbinger of the wetter months ahead.
In September, Selje, Norway, experiences a humidity level of 93%, a slight increase from the summer months but still lower than the spring's peak. Throughout the year, humidity remains consistently high, peaking at 98% in January and gradually decreasing until June, when it hits its yearly low of 83%. As summer transitions to autumn, humidity levels begin to rise again, with September showing a return to a more humid climate. This trend suggests that while the warmer months may bring a temporary respite, Selje's signature moisture returns as the seasons change, setting the stage for the colder months ahead.
In September, Selje, Norway experiences a moderate UV Index of 4, indicating that sun exposure is becoming less intense as autumn approaches, yet still warrants caution. With a burn time of around 30 minutes, it’s essential for residents and visitors alike to be mindful during outdoor activities. While the UV levels began at a low of 1 in the early months of the year, they gradually peaked at 6 during the summer. September's index reflects a slight decline from the summer highs, suggesting a transition into cooler months where sun safety remains important. For more detailed information, you can check out the Selje UV Index.
UV Risk Categories
As summer transitions to autumn, September in Selje, Norway enjoys a delightful balance of sunlight, basking in 278 hours of bright days. This marks a gentle decline from the sun-kissed months of July and August, which boast impressive totals of 451 and 379 hours respectively. While the vibrant days of May and April still linger in the memory, September sets the stage for the cozy embrace of fall. The gradual shift in daylight hints at the approaching months, where sunlight dwindles significantly, dropping to a mere 48 hours by December. Yet, September remains a beautiful period of transition, offering enough sunshine to savor the last warm days before winter's arrival.
In Selje, Norway, the likelihood of encountering sunny weather takes a noticeable dip as summer transitions into autumn, with September showcasing only an 18% chance of sunshine. This trend is a continuation of the generally lower probabilities seen in the latter half of the year, where the sun seems more elusive, especially compared to the brighter months of late spring and early summer. Following a somewhat sunnier August with 37% chances, September’s forecast hints at the onset of grayer skies, aligning with the fall season's typical weather patterns. As daylight wanes and temperatures drop, it’s wise to expect more cloudy days in this picturesque coastal town.
As summer transitions into autumn in Selje, Norway, the September daylight duration gracefully settles at 12 hours. This month marks a noticeable shift from the bounty of summer, where daylight peaked at an impressive 19 hours in June. Following this bright peak, the gradual decline begins, with daylight receding to 15 hours in August, and a further reduction in September. The trend illustrates the change of the seasons, as daylight hours begin to dwindle ahead of the darker months. The rhythm of sunlight not only encapsulates the beauty of nature but also serves as a reminder of the impending winter, with daylight forecasted to drop to 9 hours by October.
As September arrives in Selje, Norway, a noticeable transition in wind patterns unfolds. With an average wind speed of 5.6 m/s (13 mph), September records a gentle yet invigorating breeze that sets the stage for the autumnal shift. This month stands out as a slight increase from the summer lull, where wind speeds dipped to a calm 4.3 m/s (10 mph) in July and August. As temperatures begin to cool, the winds start gaining strength, hinting at the coming shift to more robust gusts in October, which can reach 7.5 m/s (17 mph). This gradual wind escalation signals nature's preparation for the vibrant seasonal changes ahead, making September a particularly engaging time for those who appreciate the nuances of the Norwegian climate.
Weather in Selje varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Selje, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present distinctly contrasting weather conditions. In September, temperatures range from a minimum of 5°C (42°F) to a maximum of 18°C (64°F), with an average temperature of 12°C (53°F). The month experiences significant rainfall, totaling 338 mm (13.3 in) over 20 days, and maintains a high humidity level of 93%. In contrast, January features much colder conditions, with temperatures dipping as low as -4°C (26°F) and averaging around 3°C (38°F), peaking at 9°C (48°F). While January sees less precipitation at 218 mm (8.6 in), it still experiences rain on 20 days, but the humidity is even higher at 98%. For more details about January weather, you can refer to Selje weather in January.
In comparing the weather between September and February, we see a marked difference in temperatures and precipitation patterns. September features a milder climate with average temperatures ranging from a chilly 5°C (42°F) at night to a pleasant 18°C (64°F) during the day, alongside high humidity levels of 93%. In contrast, February is significantly colder, with temperatures dipping as low as -9°C (16°F) and peaking at just 9°C (48°F), while humidity remains quite high at 96%. Precipitation occurs on 20 days in September, totaling 338 mm (13.3 in), compared to 185 mm (7.3 in) over 18 days in February. For more detailed insights, visit Selje weather in February.
September and March present contrasting weather patterns. In September, temperatures range from a minimum of 5°C (42°F) to a maximum of 18°C (64°F), providing a milder average temperature of 12°C (53°F). This month experiences significant rainfall, with 338 mm (13.3 in) of precipitation over 20 days, accompanied by high humidity levels of 93%.
In contrast, March is considerably colder, with temperatures dipping to a minimum of -8°C (18°F) and an average of only 3°C (38°F). The maximum temperature in March reaches 10°C (50°F), but the precipitation is relatively lower at 193 mm (7.6 in) over 21 days. The humidity remains high at 94%, contributing to the chilly atmosphere. For more detailed insights on the weather in March, check out Selje weather in March.
September and April exhibit notably different weather patterns, reflecting the transition between seasons. In September, temperatures range from a minimum of 5°C (42°F) to a maximum of 18°C (64°F), with an average of 12°C (53°F). The month is quite wet, receiving a total precipitation of 338 mm (13.3 in) over 20 days, coupled with high humidity at 93%. In contrast, April tends to be chillier, with temperatures fluctuating between -2°C (28°F) and 15°C (59°F), averaging at 5°C (41°F). The precipitation level is significantly lower at 134 mm (5.3 in) across 16 days, and humidity is slightly less at 89%. For more details on the weather in April, you can refer to Selje weather in April.
In September, the weather is relatively mild with average temperatures ranging from a minimum of 5°C (42°F) to a maximum of 18°C (64°F), and it experiences significantly higher precipitation levels, totaling 338 mm (13.3 in) over approximately 20 days. In contrast, May tends to be cooler, with temperatures fluctuating from a minimum of -1°C (31°F) to a maximum of 20°C (68°F), but it sees much less rainfall at 99 mm (3.9 in) over about 15 days, and slightly lower humidity at 86%. This makes September feel much wetter and more humid compared to the drier and slightly cooler conditions of May. For a more detailed look at the weather specifics in May, you can visit Selje weather in May.
In comparing the weather between September and June, we see notable differences in temperature and precipitation. September features a cooler temperature range, with a minimum of 5°C (42°F) and a maximum of 18°C (64°F), while June has slightly warmer temperatures, reaching a maximum of 21°C (71°F). Additionally, September experiences significantly higher precipitation at 338 mm (13.3 in) over 20 days, compared to June's 119 mm (4.7 in) across 17 days. The humidity is also elevated in September at 93%, contrasted with June's 83%. For more detailed insights on June weather, visit Selje weather in June.
When comparing the weather in September and July, notable differences emerge. July presents warmer conditions with average temperatures reaching 13°C (56°F) and maximums peaking at 25°C (77°F), while September sees a drop in temperatures, averaging 12°C (53°F) with a maximum of 18°C (64°F). Precipitation also varies significantly; September experiences a substantial amount of rain, totaling 338 mm (13.3 in) over 20 days, compared to July's 125 mm (4.9 in) over just 16 days. Additionally, September's humidity is higher at 93%, compared to July's 87%. For a more detailed look at July weather, check out Selje weather in July.
September generally experiences cooler temperatures compared to August, with minimums dropping from 8°C (47°F) in August to 5°C (42°F) in September. The average temperature also decreases from 14°C (57°F) in August to 12°C (53°F) in September, while the maximums are lower, going from 21°C (70°F) in August to 18°C (64°F) in September. Additionally, September sees significantly more precipitation, with 338 mm (13.3 in) over 20 days, compared to August's 190 mm (7.5 in) over the same number of days. Humidity is slightly higher in September, sitting at 93% compared to August’s 91%. For a detailed look at the weather during this time, check out Selje weather in August.
September and October present a noticeable shift in weather patterns, with October generally being colder and slightly wetter. In September, temperatures range from a minimum of 5°C (42°F) to a maximum of 18°C (64°F), with an average of 12°C (53°F). This month experiences significant precipitation, totaling 338 mm (13.3 in) over about 20 days, and the humidity is quite high at 93%. In contrast, October sees temperatures drop further, with a minimum of 1°C (35°F) and an average of 9°C (48°F), while the maximum reaches 17°C (62°F). Rainfall in October is slightly less, at 326 mm (12.8 in), but the number of rainy days increases to 22, alongside a marginally higher humidity level of 95%. For a detailed look at the weather specifics in October, you can check Selje weather in October.
In comparing the weather between September and November, we see a distinct shift in temperature and conditions. September boasts milder temperatures, with a minimum of 5°C (42°F) and an average of 12°C (53°F), while November brings cooler air, reaching a minimum of -2°C (28°F) and an average of 6°C (43°F). Although September experiences higher precipitation at 338 mm (13.3 in) over 20 days, November still sees considerable rainfall at 247 mm (9.7 in) over 19 days. Additionally, humidity remains high in both months, peaking at 93% in September compared to 97% in November. For more detailed insights, check Selje weather in November.
In September, the weather is noticeably milder with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 18°C (64°F) and an average of 12°C (53°F). However, it is also quite rainy, with 338 mm (13.3 in) of precipitation over 20 days and high humidity at 93%. In contrast, December experiences colder conditions, with temperatures dropping to a minimum of -4°C (26°F) and peaking at 11°C (52°F), averaging around 4°C (39°F). While December has less total precipitation at 247 mm (9.7 in) over 23 days, it still maintains a high humidity level of 97%. For a more detailed look at the December weather, you can visit Selje weather in December.
As summer fades, September in Selje ushers in a notably cooler and wetter atmosphere compared to the preceding months. With average temperatures hovering around 12°C (53°F), the warmth of late summer gives way to brisk, refreshing air. Rainfall becomes a staple, as the month records significant precipitation with around 20 rainy days, leading to a humid environment that's characteristic of early autumn. This shift not only alters the landscape but also invites visitors and locals alike to embrace the changing season. To explore more about how Selje’s weather varies throughout the year, visit Selje Climate.