Last updated: August 27, 2025
October in Arendal, Norway ushers in the beautiful transition of autumn, with temperatures fluctuating from a chilly -3°C (28°F) at night to a pleasant 17°C (64°F) during the day. With an average temperature hovering around 9°C (48°F), residents and visitors alike can expect crisp, invigorating air. The month sees significant precipitation, measuring 157 mm (6.2 in) over approximately 15 days, often contributing to a lush, vibrant landscape. Combined with a high humidity level of 92%, the atmosphere feels rich and moistened, enhancing the cozy appeal of this enchanting Norwegian town in the heart of autumn.
In October, Arendal experiences a noticeable shift as temperatures begin to drop, with minimums hovering around -3°C (28°F). The average temperature settles at a crisp 9°C (48°F), while the maximums reach up to 17°C (64°F), offering a refreshing transition into the autumn season. This month marks a clear departure from the warmer days of September, where temperatures were more mild and inviting. As the days shorten and leaves change, October provides a delightful blend of cool air and vibrant foliage, creating an idyllic backdrop for exploring the scenic beauty of Arendal.
October in Arendal, Norway, marks a significant shift in precipitation, as the month typically sees a notable increase, with an average of 157 mm (6.2 in) of rain falling over 15 days. This surge makes October the wettest month of the year, following a relatively drier September that recorded 118 mm (4.6 in). The rain-soaked atmosphere is characteristic of autumn, when temperatures begin to cool and the landscape transforms. With each passing year, the trend reveals a gradual uptick in both precipitation amounts and rainy days during this month, reminding residents and visitors alike to prepare for the lush yet damp embrace of fall.
As October settles in Arendal, Norway, humidity levels soar to 92%, mirroring those of the preceding months in late autumn. This spike marks a return to the high humidity characteristic of winter, following a brief dip as summer transitioned into fall. The trends reveal a gradual decrease in humidity from a peak of 93% in January to a low of 74% during the summer months of June and July. However, as the days grow shorter and cooler, the humidity climbs again, suggesting a close relationship between the changing seasons and moisture levels in the air. This near-constant humidity throughout the year illustrates Arendal's maritime climate, offering a cozy yet moist atmosphere as the city braces for winter’s embrace.
As October arrives in Arendal, Norway, the UV Index dips to 2, maintaining a low exposure category, similar to the early months of the year. With a burn time of 45 minutes, sunlight poses minimal risk, making it an ideal time for outdoor activities without the urgent need for sun protection. This gentle decline in UV levels follows the summer months, when the index peaked at 7 in June and July, indicating a shift from high sun exposure to the milder conditions of autumn. As daylight dwindles and preparations for winter begin, embracing the sunny October days can be a delightful experience. For more detailed information, visit Arendal UV Index.
UV Risk Categories
As October settles in Arendal, Norway, the days begin to mellow, offering 244 hours of sunlight, a gentle transition from the vibrant glow of summer. This month, while markedly brighter than the winter months ahead, shines with less intensity compared to the sun-soaked summer, where June peaks at 464 hours and July at 478 hours. As autumn deepens, the golden hues of October sunlight bring a warm charm, contrasting with the stark decline into darker months; November shrinks to a mere 137 hours of brightness. This gradual descent into winter underscores October's role as a crucial bridge, inviting residents and visitors to relish the lingering warmth before the long nights take hold.
In Arendal, Norway, the likelihood of sunny weather experiences a notable decline as October arrives, with sunny days dropping to 27%—the lowest since May. This trend marks a shift from the sunnier spring months, particularly April’s 62% chance, and the somewhat brighter summer months, where chances hover around the mid-40% range. As autumn takes hold, the sun yields to increasingly unpredictable weather patterns, establishing October as a transition period where the days grow shorter and cloud cover dominates. This shift serves as a reminder that while the sun might shine during the earlier months, by October, residents of Arendal should prepare for chillier, cloudier days ahead.
In Arendal, Norway, the transition into October marks a noticeable shift in daylight duration, as the days begin to shorten significantly. Following the long, sunlit days of summer, with June boasting up to 18 hours of daylight, October settles into a more subdued 10 hours. This gradual decline from the vibrant light of late summer to the fading warmth of autumn is a reflection of nature’s cyclic rhythm. As the month progresses, residents and visitors alike can savor the cozy ambiance that comes with shorter days, while the crisp air hints at the winter months ahead. With November bringing even fewer hours of light, October offers a bittersweet farewell to the longer days, ushering in a season of reflection and warmth.
As the crisp embrace of October settles over Arendal, Norway, the wind begins to pick up, averaging 4.3 m/s (10 mph)—notably the highest speed since the spring months. This slight surge from the preceding months marks a transition into the blustery season, where nature's breath becomes more palpable. After experiencing the calmer breezes of summer, which hovered around 3.1 m/s (7 mph), October’s gusts herald the approach of the colder months, inviting a vibrant dance of leaves and the shifting melodies of the Nordic landscape. With November following closely behind at 4.0 m/s (9 mph), it’s clear that the winds of Arendal are preparing for a spirited winter, reminding us that even in change, there is an invigorating energy that stirs the soul.
Weather in Arendal varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Arendal, focusing on differences in temperature, rainfall, humidity, and UV levels.
In October, the weather features a milder temperature range, with minimums around -3°C (28°F) and average highs reaching 17°C (64°F). The month experiences significant rainfall, totaling 157 mm (6.2 in) over approximately 15 days, alongside a high humidity level of 92%. In contrast, January is decidedly colder, with average temperatures hovering around 1°C (35°F) and lows plummeting to -14°C (7°F). Although January sees less precipitation at 79 mm (3.1 in) over about 11 days, humidity remains high at 93%. For more details on January weather, check out Arendal weather in January.
October and February exhibit notable contrasts in weather patterns. In October, temperatures range from a chilly -3°C (28°F) to a pleasant 17°C (64°F), with an average of 9°C (48°F). This month experiences significant precipitation, totaling 157 mm (6.2 in) across 15 days, coupled with high humidity at 92%. In contrast, February sees colder conditions, with temperatures dipping as low as -16°C (4°F) and only a mild peak of 12°C (53°F), averaging around 1°C (34°F). The month has less precipitation, totaling 98 mm (3.9 in) over 12 days, and a slightly lower humidity of 91%. For more specific insights into February weather, you can check Arendal weather in February.
In comparing the weather of October and March, one can observe notable differences in temperatures and precipitation levels. October features milder temperatures, with an average of 9°C (48°F) and daily highs reaching up to 17°C (64°F). In contrast, March can be quite chilly, starting with minimum temperatures as low as -13°C (9°F) and averaging just 3°C (37°F). While October experiences more precipitation, totaling 157 mm (6.2 in) over 15 days, March has relatively lower rainfall, at 91 mm (3.6 in) over 11 days. Humidity levels are also high in both months, with October at 92% and March at 88%. For more detailed information about the weather in March, you can visit Arendal weather in March.
In comparing the weather between October and April, notable differences emerge in both temperature and precipitation. October experiences a milder average temperature of 9°C (48°F) with maximums reaching up to 17°C (64°F), while April is slightly cooler on average at 7°C (44°F), yet it can peak at 20°C (68°F). Precipitation levels are markedly higher in October, with 157 mm (6.2 in) falling over 15 days, compared to just 39 mm (1.5 in) over 7 days in April. Additionally, October has a higher humidity level at 92%, compared to April’s 83%. For more detailed insights into April's weather, you can explore this link: Arendal weather in April.
October and May showcase contrasting weather patterns, with October marked by cooler temperatures and higher humidity. In October, temperatures range from a chilly minimum of -3°C (28°F) to a maximum of 17°C (64°F), with an average of 9°C (48°F). This month also experiences considerable precipitation, totaling 157 mm (6.2 in) over approximately 15 days, accompanied by a high humidity level of 92%. In contrast, May brings warmer and more pleasant conditions, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 27°C (81°F) and an average of 12°C (53°F). May sees less rainfall, accumulating 88 mm (3.4 in) over about 10 days, and the humidity is significantly lower at 75%. For a detailed overview, you can check Arendal weather in May.
October and June present stark contrasts in weather. In June, temperatures range from a minimum of 5°C (42°F) to a maximum of 31°C (88°F), with an average temperature of 16°C (62°F). This month experiences significantly less precipitation, at 94 mm (3.7 in) over 12 days, and lower humidity levels of 74%. In contrast, October brings chillier conditions, with temperatures dropping to a minimum of -3°C (28°F) and averaging 9°C (48°F), peaking at 17°C (64°F). The month is also much wetter, with 157 mm (6.2 in) of rainfall over 15 days and higher humidity levels of 92%. For more detailed insights about June weather specifically, you can visit Arendal weather in June.
October and July present stark contrasts in weather conditions. In October, temperatures drop significantly, ranging from a chilly minimum of -3°C (28°F) to a maximum of 17°C (64°F), with an average of 9°C (48°F). This month is also characterized by high humidity at 92% and substantial precipitation, totaling 157 mm (6.2 in) across approximately 15 days. In contrast, July offers much warmer weather with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 29°C (85°F), averaging around 18°C (65°F). July is relatively drier, receiving only 94 mm (3.7 in) of rain over approximately 12 days and features lower humidity at 74%. For more details on July's weather in Arendal, visit Arendal weather in July.
In comparing the weather between October and August, October is significantly cooler, with average temperatures ranging from a minimum of -3°C (28°F) to a maximum of 17°C (64°F). In contrast, August enjoys milder temperatures, with values typically between 7°C (45°F) and 27°C (81°F). Additionally, October experiences higher precipitation levels, averaging 157 mm (6.2 in) over approximately 15 days, compared to August’s 92 mm (3.6 in) over 12 days. The humidity is also notably higher in October at 92%, compared to August's 78%. For more information, you can check out Arendal weather in August.
In comparison to September, October experiences a significant drop in temperatures, with average values falling from 13°C (56°F) to 9°C (48°F). The maximum temperature in October reaches only 17°C (64°F), much cooler than September's peak of 26°C (80°F). Precipitation also increases in October, totaling 157 mm (6.2 in) across 15 days, compared to September's 118 mm (4.6 in) over 13 days. Additionally, humidity is higher in October at 92%, compared to 86% in September, making the month feel considerably more damp and chilly. For more detailed information, check out Arendal weather in September.
October typically presents milder temperatures with an average of 9°C (48°F), while November sees a drop to an average of 5°C (41°F), indicating a noticeable cooling trend as winter approaches. The minimum temperatures in October dip to -3°C (28°F), compared to a colder -8°C (17°F) in November. While both months experience similar precipitation levels of around 15 days, October receives more rainfall at 157 mm (6.2 in) than November's 121 mm (4.8 in). Humidity remains constant at 92% in both months, contributing to a damp chill that characterizes the transition into winter. For more specific details about November weather, you can refer to Arendal weather in November.
October and December exhibit significant differences in weather patterns. In October, temperatures range from a minimum of -3°C (28°F) to a maximum of 17°C (64°F), with an average temperature of 9°C (48°F). The month experiences about 157 mm (6.2 in) of precipitation over 15 days, contributing to a humid atmosphere with a relative humidity of 92%.
Conversely, December is considerably colder, with temperatures dipping to a minimum of -12°C (10°F) and an average of only 2°C (36°F), peaking at 12°C (53°F). This month sees slightly less precipitation at 154 mm (6.0 in), but it is spread across more days, with rain or snow occurring approximately 18 days of the month. Even though the humidity remains the same at 92%, the chilling temperatures create a markedly different feel to December’s weather compared to October’s milder conditions. For more specific details about weather patterns in December, you can check Arendal weather in December.
As October unfolds in Arendal, the weather becomes noticeably cooler and more unpredictable compared to the preceding months. With temperatures dropping significantly and a high humidity of 92%, residents and visitors experience a shift to a more autumnal atmosphere. The frequent precipitation—spanning 15 days with a total of 157 mm—adds to the distinctive character of this month, making October a time for cozy indoors and splendid fall scenery. For a deeper dive into what to expect throughout the year, check out the Arendal Climate page.