Last updated: August 27, 2025
In Sundsvall, Sweden, October ushers in a notable shift in weather dynamics, characterized by temperatures ranging from a comfortable maximum of 20°C (68°F) to a chilly minimum of -8°C (18°F). The average temperature hovers around 5°C (42°F), making warm clothing a necessity. With 89 mm (3.5 in) of precipitation spread across 14 days, the month sees a fair share of rainy spells, complemented by a high humidity level of 93% that adds to the crisp autumn atmosphere. This combination creates a vibrant and sometimes challenging climate, perfect for those who appreciate the beauty of changeable weather.
In October, Sundsvall, Sweden experiences a notable transition into the chill of autumn, with temperatures ranging from a brisk -8°C (18°F) at night to a pleasant 20°C (68°F) during the day. The average temperature sits at 5°C (42°F), marking a significant shift from the warm embrace of summer as the city begins to prepare for winter's arrival. While the daytime highs still reflect some lingering warmth, the nights become notably cooler, indicating the seasonal shift. This month serves as a bridge between the vibrant hues of autumn foliage and the impending frost, offering a unique charm that entices visitors and residents alike to enjoy the crisp, refreshing air.
In October, Sundsvall experiences a notable increase in precipitation, with an average of 89 mm (3.5 in) of rainfall spread over 14 days. This marks a significant rise from the previous month, September, which recorded 64 mm over 13 days. The shift into October often signals the transition to wetter conditions as autumn deepens, resulting in one of the rainiest months of the year. This high level of rainfall is not only a precursor to the winter months but also a pattern observed as summer's gradual retreat gives way to the brisk, chilly air of late fall. As the landscape shifts, the increased moisture plays a crucial role in replenishing local ecosystems just before the winter freeze sets in.
As October rolls into Sundsvall, Sweden, the air becomes noticeably more humid, with levels reaching 93%—a slight uptick from September's 89%. This increase signals a transition as autumn deepens, following a trend of gradually declining humidity from the peak winter months. The humidity, while relatively high compared to the year's overall average, indicates a shift away from the summer's relatively drier conditions, marked by June's low of 76%. As the landscape prepares for the chill of winter, the crisp, damp air of October offers a reminder of nature's rhythm, drawing a connection between the changing seasons and the fluctuating humidity levels throughout the year.
As October arrives in Sundsvall, Sweden, the UV Index dips to a low level of 2, providing a welcome respite after the summer months. This trend signifies a gradual transition from the higher values observed in midsummer, where the UV Index peaked at 6 in both June and July, indicating high exposure levels and a burn time of just 25 minutes. Moving through the year, October's UV Index mirrors the conditions of early spring and late fall, reflecting a consistent need for sun protection with a burn time of 45 minutes. This pattern suggests that while the sun's intensity is diminishing, it remains wise to stay informed about UV exposure levels year-round. For detailed information, visit Sundsvall UV Index.
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In Sundsvall, Sweden, October brings a gentle transition as the daylight begins to wane, with 204 hours of sunshine gracing the month. This marks a significant drop from the sun-drenched days of summer, where July peaked at nearly 500 hours. Interestingly, October still enjoys a generous amount of light compared to the grim days of winter ahead, notably higher than the chilly depths of January, which sees only 64 hours. The month serves as a bridge, combining the lingering warmth of autumn with the anticipation of the winter months, as the sun's presence gradually decreases from the vibrant days of early autumn to the subdued light of November, which captures only 115 hours. Ultimately, October in Sundsvall is a beautiful blend of sun-soaked transitions, inviting residents to relish the last rays before winter's embrace.
In Sundsvall, Sweden, October ushers in the transition to autumn, bringing with it a 25% chance of sunny weather. This marks a notable decline from the sunniest month, July, which boasts a 51% likelihood of clear skies. As the year progresses, we see a gradual reduction in sunny days, with April peaking at 46%, followed by a sharp drop as temperatures cool. While October offers limited sunshine, it still outperforms the surrounding months of September and November, which stand at 26% and 34% respectively. This trend illustrates the region's shift towards winter, where sunshine becomes a precious commodity, hinting at the cozy charm of crisp autumn days ahead.
As autumn settles in Sundsvall, Sweden, the shifting daylight duration becomes more pronounced. October marks a noticeable transition, with only 9 hours of sunlight—a stark contrast to the 19 hours enjoyed in June. The month epitomizes the gradual decline in daylight that started with the lush brightness of summer, tapering off as the year moves towards winter. While September still offers 12 hours of daylight, October’s shorter days herald the approach of darker months, reminiscent of January's 6 hours. This cycle underscores the rhythmic dance of seasons, where daylight not only diminishes but also enriches the cozy atmosphere of autumn in Sundsvall.
As October unfolds in Sundsvall, Sweden, the average wind speed gently picks up to 3.7 m/s (8 mph), a notable rise from the more placid summer months. This increase contrasts with the calmer breezes of June and July, which hovered around 2.7 to 2.9 m/s, offering a tranquil atmosphere perfect for warm-weather activities. As autumn progresses, winds breathe new life into the landscape, shaping the vibrant fall foliage. Interestingly, October's wind speed mirrors that of February, creating a seasonal bridge that hints at the colder months ahead. The noticeable rise in wind also sets the stage for November's expected return to a more temperate 3.2 m/s, a reminder of the cyclical dance between summer’s gentleness and winter’s approach in this picturesque northern locale.
Weather in Sundsvall varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Sundsvall, focusing on differences in temperature, rainfall, humidity, and UV levels.
In October, temperatures in Sundsvall range from a chilly minimum of -8°C (18°F) to a comfortable maximum of 20°C (68°F), with an average of 5°C (42°F). The month experiences considerable precipitation, totaling 89 mm (3.5 in) across 14 days, accompanied by high humidity levels at 93%. In contrast, January brings much colder weather, with temperatures dipping as low as -28°C (-18°F) and averaging -5°C (24°F), reaching only a maximum of 8°C (47°F). Precipitation is reduced to 55 mm (2.1 in) over 9 days, while humidity hovers at a high 97%. For more detailed information about conditions in January, you can check Sundsvall weather in January.
October and February present strikingly different weather conditions. In October, temperatures range from a chilly -8°C (18°F) at night to a mild maximum of 20°C (68°F) during the day, with an average of around 5°C (42°F). This month sees considerable precipitation, totaling 89 mm (3.5 in) over about 14 days, and high humidity at 93%. In contrast, February is typically much colder, with minimum temperatures plummeting to -22°C (-7°F) and a daily average of -5°C (23°F); daytime highs only reach 8°C (47°F). February experiences significantly less rainfall, totaling 44 mm (1.7 in) over 8 days, while humidity remains high at 95%. For more details, check out Sundsvall weather in February.
In October, the weather tends to be milder, with temperatures ranging from a minimum of -8°C (18°F) to a maximum of 20°C (68°F) and an average of 5°C (42°F). The month experiences significant precipitation, totaling 89 mm (3.5 in) over approximately 14 days, coupled with high humidity at 93%. In contrast, March is characterized by colder temperatures, with a minimum of -23°C (-10°F) and a maximum of 13°C (55°F), averaging around -1°C (30°F). Although March has less precipitation, about 45 mm (1.8 in) over 9 days, the humidity remains nearly constant at 92%. The stark difference in temperatures and overall precipitation patterns highlights the transition from autumn to late winter. For more detailed information, you can check Sundsvall weather in March.
In October, the weather in Sundsvall tends to be milder compared to April, with average temperatures hovering around 5°C (42°F) and a maximum reach of 20°C (68°F). Although both months experience chilly temperatures, October's minimum temperature is a less frigid -8°C (18°F) compared to April’s colder low of -14°C (7°F). Additionally, October sees more precipitation, averaging 89 mm (3.5 in) over roughly 14 days, while April has only 30 mm (1.2 in) over about 8 days. Humidity is slightly higher in October at 93%, while April maintains a lower humidity level of 86%. For a closer look at the specific weather patterns in April, you can refer to Sundsvall weather in April.
October and May present contrasting weather patterns. In October, temperatures range from a chilly minimum of -8°C (18°F) to a mild maximum of 20°C (68°F), with an average of 5°C (42°F). The month experiences significant rainfall, with 89 mm (3.5 in) of precipitation over 14 days, leading to high humidity levels at 93%. In contrast, May offers a more temperate climate, where temperatures range from a minimum of -4°C (25°F) to a warm maximum of 27°C (81°F), with an average of 9°C (48°F). Precipitation decreases to 37 mm (1.5 in) over just 9 days, resulting in a lower humidity level of 80%. For a closer look at May's conditions, you can refer to Sundsvall weather in May.
When comparing the weather in October and June, significant differences emerge. October boasts a much cooler average temperature of 5°C (42°F), with nocturnal lows dipping to -8°C (18°F), while June warms up to an average of 15°C (58°F), peaking at a maximum of 32°C (90°F). Precipitation levels are higher in October, with 89 mm (3.5 in) recorded over 14 days, compared to June's 57 mm (2.3 in) over just 9 days, indicating a wetter climate during the fall. Additionally, the humidity in October is notably higher at 93%, whereas June experiences a more comfortable level of 76%. For more details on the June climate, you can explore Sundsvall weather in June.
October weather is significantly cooler than July, with temperatures ranging from a brisk minimum of -8°C (18°F) to a mild maximum of 20°C (68°F) and an average of just 5°C (42°F). In contrast, July boasts much warmer temperatures, with lows of 4°C (40°F), an average of 16°C (61°F), and highs reaching up to 30°C (87°F). Additionally, October experiences more precipitation, averaging 89 mm (3.5 inches) over 14 days, compared to July's 77 mm (3.0 inches) over 11 days. The humidity is also higher in October at 93%, while July sees a more comfortable 80%. For a more detailed comparison, you can learn more about Sundsvall weather in July.
October weather in Sundsvall brings cooler temperatures, with a minimum of -8°C (18°F) and an average of 5°C (42°F), compared to the milder August temperatures that range from a minimum of 2°C (36°F) to an average of 15°C (59°F). While August enjoys maximum temperatures up to 27°C (82°F), October peaks at a much lower 20°C (68°F). Precipitation is slightly higher in October, totaling 89 mm (3.5 in) over 14 days, while August sees 74 mm (2.9 in) across 13 days. Additionally, October's humidity is higher at 93%, compared to August's 86%. For more details, you can visit Sundsvall weather in August.
October weather exhibits a noticeable chill compared to September. With minimum temperatures dipping to -8°C (18°F) and an average of just 5°C (42°F), October is markedly colder than September, which has a warmer minimum of -2°C (29°F) and an average of 10°C (51°F). Additionally, while both months experience similar levels of precipitation days, October sees an increase in rainfall, totaling 89 mm (3.5 in) compared to September's 64 mm (2.5 in) over 13 days. Humidity also rises slightly in October to 93%, up from 89% in September. For more details, you can read about Sundsvall weather in September.
In comparing the weather between October and November, October tends to be milder with average temperatures around 5°C (42°F) and a maximum of 20°C (68°F), while November sees colder conditions, with average temperatures dropping to around 0°C (32°F) and a maximum of only 13°C (56°F). Precipitation is more pronounced in October, totaling 89 mm (3.5 in) over approximately 14 days, compared to November's 47 mm (1.9 in) over about 10 days. Humidity remains quite similar between the two months, with October at 93% and November slightly higher at 94%. For more specific details on November weather, you can visit Sundsvall weather in November.
October and December weather present a stark contrast in temperature and precipitation patterns. October enjoys milder conditions with average temperatures hovering around 5°C (42°F) and a maximum of 20°C (68°F). It experiences 89 mm (3.5 in) of precipitation over approximately 14 days, alongside a high humidity level of 93%. In contrast, December plunges into much colder temperatures, with averages around -3°C (27°F) and a maximum of just 7°C (46°F). Although December sees slightly less precipitation at 76 mm (3.0 in) over 13 days, it also has a higher humidity of 96%, reflecting the chill of the winter season. For more detailed information on December weather, you can visit Sundsvall weather in December.
As October settles in, Sundsvall transitions into a cooler, more dramatic climate, offering a stark contrast to the mildness of September. This month's weather is marked by significant drops in temperature, with chilly nights highlighting the approach of winter as daytime highs hold onto some warmth. Frequent rainfall, with half of the month experiencing precipitation, contributes to a moist and humid atmosphere, making cozy indoor activities all the more appealing. The average temperatures and increased precipitation create a unique tapestry of autumn colors and crisp air, inviting residents and visitors alike to embrace the seasonal changes. For more insights and data on the prevailing weather trends, check out Sundsvall Climate.