Last updated: August 27, 2025
In September, Vestby, Norway experiences a delightful transition into autumn with a temperature range that sees highs of 26°C (78°F) and lows dipping to 0°C (32°F). The average temperature hovers around a comfortable 13°C (56°F), making it an enjoyable time for outdoor activities. This month also brings 99 mm (3.9 in) of precipitation over 12 days, contributing to the lush scenery. With an average humidity of 86%, the air is crisp yet refreshing, capturing the essence of early fall in this charming Norwegian town.
September in Vestby, Norway marks a delightful transition into autumn, characterized by mild temperatures that invite outdoor exploration. As summer yields its warmth, the average temperature settles around 13°C (56°F), with daytime highs soaring to 26°C (78°F), offering a taste of lingering summer heat. The nights begin to cool significantly, with minimums dipping to around 0°C (32°F), hinting at the approaching chill of fall. This blend of comfortable days and crisp evenings creates an ideal setting for enjoying the stunning natural scenery, making September a perfect time for both locals and visitors to revel in the vibrant landscapes of Vestby.
September in Vestby, Norway, marks a significant shift in the weather as precipitation reaches 99 mm (3.9 in), making it one of the wettest months of the year. With rainfall occurring on 12 days, the lush landscapes of autumn begin to take shape, contrasting sharply with the drier spring months. The increase in precipitation from August's 76 mm (3.0 in) sets the stage for a wetter autumn season, as the region transitions towards October's peak rainfall of 114 mm (4.5 in). This trend highlights a clear progression from the more moderate summer rains, inviting both vibrant foliage and cozy indoor moments for Vestby's residents.
As the warm summer months give way to autumn in Vestby, Norway, September sees a notable increase in humidity, rising to 86%. This elevation marks a contrast to the lower levels experienced during the preceding summer, particularly June and July, which hovered around 71% to 72%. As the days shorten and temperatures begin to cool, the air grows noticeably heavier with moisture, reflecting a transition that foreshadows the wetter autumn and winter months ahead. Indeed, September's humidity serves as a bridge, reconnecting the lush, humid conditions of early autumn with the year’s peak moisture levels, which are typically observed in the cold winter months, where humidity levels consistently return to the high 90s.
As the summer fades into autumn, September in Vestby, Norway sees a moderate UV Index of 4, indicating a shift from the high exposure of the summer months. With a recommended burn time of 30 minutes, residents and visitors should remain cautious during midday sun exposure. This month marks a transition from the peak summer values of 7 in June and July, creating a more comfortable environment for outdoor activities while still necessitating sun protection. Following September, the UV Index drops further as autumn sets in, emphasizing the need to adapt sun safety practices as the season changes. For more detailed information on UV levels throughout the year, visit Vestby UV Index.
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As the summer sun begins to fade in Vestby, Norway, September offers a beautiful transition into autumn with an impressive 283 hours of sunshine. This month follows a peak of radiant light in July, where the region basked in 473 hours of sunlight, and notably marks a decline from the vibrant days of June and August. However, September still glows with more light than the drearier months that follow, showcasing a significant drop as the year progresses into October's 225 hours. The trend highlights how the longer, sunlit days of summer gradually give way to the crisp, shorter days of fall, while still providing a generous amount of daylight to enjoy the stunning Norwegian landscapes.
In Vestby, Norway, the likelihood of sunny weather in September drops to a modest 26%, marking it as one of the less favorable months for sunshine. This trend follows an upward swing from the early months of the year, with a significant peak occurring in April at 56%. As summer fades, the chance of sun dwindles, seen in August’s 39%, and September’s decline signals the transition into the gloomier autumn months where sunlight becomes increasingly elusive. With this pattern in mind, it’s wise for visitors and locals alike to plan for days that may be more overcast than bright in this picturesque coastal town.
As the warm embrace of summer begins to wane, September in Vestby, Norway, brings a gentle transition with approximately 12 hours of daylight. This month marks a shift from the peak of summer's 18 hours in June, gradually tapering as autumn approaches. Following the vibrant long days of May and June, September offers a moderate balance, with sunlight providing ample time for outdoor activities while hinting at the earlier sunset to come in October. The daylight duration continues its seasonal rhythm, reminding us that the days are getting shorter, but there is still plenty of light to savor before the long nights of winter settle in.
As September rolls into Vestby, Norway, the average wind speed settles at 2.8 m/s (6 mph), mirroring the gentle breezes of the summer months. This slight decline from April's peak of 3.3 m/s marks a transition, inviting the vibrant hues of autumn while still holding on to the remnants of warmer weather. Previous months show a consistent trend with mostly calm conditions, particularly in the heart of summer, where wind speeds dipped to their lowest in July at 2.6 m/s (6 mph). Looking ahead, October brings a notable increase to 3.9 m/s (9 mph), hinting at the more dynamic weather patterns that accompany the falling leaves. Overall, September serves as a serene bridge from summer’s stillness to the brisk winds of autumn, embodying the tranquil beauty of this coastal town.
Weather in Vestby varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Vestby, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present significantly contrasting weather patterns. In September, temperatures range from a chilly 0°C (32°F) at their lowest to a pleasant maximum of 26°C (78°F), with an average of 13°C (56°F). The month experiences 99 mm (3.9 in) of precipitation over 12 days, along with a humidity level of 86%. Conversely, January is much colder, with temperatures dropping to a minimum of -18°C (0°F) and an average of 0°C (32°F), peaking at just 11°C (52°F). Precipitation decreases to 56 mm (2.2 in) over 9 days and humidity rises slightly to 94%. For more details, you can check out Vestby weather in January.
September and February present contrasting weather patterns that highlight the transition from late summer to winter. In September, temperatures range from a cool 0°C (32°F) at night to a pleasant average of 13°C (56°F) during the day, peaking at a warm 26°C (78°F). This month also sees significant rainfall, with 99 mm (3.9 in) spread over 12 days, and humidity levels averaging 86%.
In stark contrast, February experiences much colder conditions, with nighttime temperatures plunging to a frigid -19°C (-1°F) and an average of 0°C (32°F) throughout the day. Maximum temperatures reach only 12°C (53°F). While precipitation is lower at 63 mm (2.5 in) over 10 days, the humidity is slightly higher at 92%. For a detailed look at February's weather in Vestby, you can check Vestby weather in February.
In September, the weather is generally milder, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 26°C (78°F) and an average of 13°C (56°F). The humidity is high at 86%, and there is significant precipitation, averaging 99 mm (3.9 in) over approximately 12 days.
In contrast, March experiences colder conditions, with temperatures ranging from a low of -14°C (7°F) to a high of 18°C (65°F), averaging only 2°C (37°F). Although March sees less precipitation at 62 mm (2.5 in) over about 9 days, the humidity remains high at 89%. For more detailed information, you can check Vestby weather in March.
When comparing the weather in September and April, we see distinct differences in temperature and precipitation patterns. September boasts a more moderate temperature range, with a minimum of 0°C (32°F) and an average of 13°C (56°F), occasionally hitting a high of 26°C (78°F). In contrast, April tends to be cooler, starting at a minimum of -9°C (17°F) with an average of 7°C (45°F) and a maximum of 24°C (75°F). Precipitation is also more frequent in September, occurring on 12 days with a total of 99 mm (3.9 in), compared to April’s lighter rainfall of just 32 mm (1.3 in) over 5 days. Humidity levels are slightly higher in September at 86%, while April remains relatively comfortable at 82%. For more detailed information, check out Vestby weather in April.
In comparing the weather of September and May, September tends to be slightly warmer, with average temperatures around 13°C (56°F) compared to May's 12°C (54°F). However, May can reach higher maximum temperatures, peaking at 31°C (89°F), while September has a maximum of 26°C (78°F). Precipitation levels in September are higher, totaling 99 mm (3.9 in) over 12 days, whereas May experiences 72 mm (2.8 in) across 11 days. Additionally, September has a noticeably higher humidity level at 86%, compared to 73% in May. For more detailed insights, check out the link: Vestby weather in May.
When comparing the weather in September and June, notable differences emerge. September typically sees a cooler temperature range, with minimums around 0°C (32°F) and an average of 13°C (56°F), while June enjoys milder conditions with minimums at 5°C (42°F) and an average of 17°C (63°F). Additionally, June experiences warmer maximum temperatures reaching up to 31°C (88°F), compared to September’s maximum of 26°C (78°F). Precipitation levels also reveal a contrast, with September receiving 99 mm (3.9 in) of rain over 12 days, slightly wetter than June's 76 mm (3.0 in) across the same number of days. The humidity is higher in September at 86%, while June's humidity is more comfortable at 71%. For more details, you can check out the link: Vestby weather in June.
When comparing the weather in September to that of July, we observe notable differences in temperature and humidity levels. September typically has cooler average temperatures, ranging from a minimum of 0°C (32°F) to a maximum of 26°C (78°F), with an average of 13°C (56°F). In contrast, July enjoys warmer conditions, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 34°C (93°F) and an average of 19°C (66°F). Additionally, September experiences higher humidity at 86% compared to July’s 72%, contributing to a more damp feel. Rainfall is also more frequent in September, with 99 mm (3.9 in) over 12 days, while July sees less precipitation at 84 mm (3.3 in) over 10 days. For those interested in more details about July weather, you can check out Vestby weather in July.
In September, the weather takes a cooler turn compared to August, with minimum temperatures dropping to around 0°C (32°F) and average temperatures settling at 13°C (56°F). In contrast, August enjoys warmer conditions with minimum temperatures of 6°C (43°F) and an average of 17°C (63°F). Furthermore, September experiences slightly more precipitation, totaling 99 mm (3.9 in) over 12 days, compared to August's 76 mm (3.0 in) over the same number of days. The humidity also increases in September to 86%, while August maintains a lower humidity level of 77%. For a more detailed look at August weather, visit Vestby weather in August.
September and October bring notable shifts in weather. In September, temperatures range from a minimum of 0°C (32°F) to a maximum of 26°C (78°F), with an average of 13°C (56°F), while October sees lower temperatures, with a minimum of -3°C (27°F), an average of 8°C (47°F), and a maximum of 18°C (64°F). Precipitation increases slightly from 99 mm (3.9 in) over 12 days in September to 114 mm (4.5 in) over 14 days in October, contributing to an uptick in humidity from 86% to 92%. For more details on October weather, check out Vestby weather in October.
September and November present notable differences in weather conditions. September typically features a milder temperature range with minimums around 0°C (32°F) and maximums reaching 26°C (78°F), while November sees colder weather, with lows dropping to -9°C (15°F) and highs peaking at 15°C (60°F). Additionally, both months experience relatively high precipitation levels, with September receiving 99 mm (3.9 in) over 12 days and November slightly less at 94 mm (3.7 in) across 13 days. Humidity is also higher in November, averaging 93% compared to September's 86%. For more details, you can check Vestby weather in November.
September weather is characterized by milder temperatures, with a minimum of 0°C (32°F) and an average around 13°C (56°F), peaking at 26°C (78°F). In contrast, December sees much colder conditions, with temperatures dropping significantly—ranging from a minimum of -11°C (12°F) to a maximum of 9°C (49°F) and averaging around 0°C (33°F). While both months experience similar levels of precipitation, September typically receives 99 mm (3.9 in) over 12 days, compared to December's slightly lower 94 mm (3.7 in) over 15 days. Interestingly, December is also slightly more humid, with humidity levels reaching 93% compared to September's 86%. For more detailed information, check out Vestby weather in December.
September in Vestby marks a notable shift in weather compared to the vibrant summer months. As temperatures begin to drop, with pleasant afternoons giving way to crisp evenings, it becomes a time for cozy layering. The increased humidity can be felt in the air, contributing to a lush landscape refreshed by significant rainfall spread over about half the month. This transition not only signifies the end of the warmest days but also invites a refreshing autumnal atmosphere, making it an ideal time for outdoor activities and enjoying nature’s changing colors. For a more detailed view of what to expect throughout the year, visit Vestby Climate.