Last updated: January 18, 2025
Västernorrland, Sweden, is characterized by a Dfc Köppen-Geiger climate classification, indicative of a subarctic climate. The region experiences a significant range in temperatures, with January recording a chilling minimum of -33°C (-26°F), contrasting with the warm peak of 33°C (91°F) in June. The annual average temperature hovers around 5°C (41°F), reflecting the distinct seasonal shifts that define this landscape. Such climatic variability fosters a unique ecosystem, shaping both the flora and fauna that thrive within this northern territory.
Västernorrland, Sweden, exhibits distinct seasonal temperature patterns that dramatically shift throughout the year. Winter months, particularly January and February, reveal frigid averages of -5°C (23°F), with January experiencing extreme lows of -33°C (-26°F), showcasing the harsh cold typical of the region. As spring unfolds in March and April, temperatures begin to warm, with averages rising to 3°C (37°F) in April, and maximum temperatures peaking at 23°C (73°F), hinting at the impending summer. The summer months of June and July are characterized by notably warmer temperatures, averaging 14°C (58°F) and 16°C (61°F), respectively, with June reaching a maximum of 33°C (91°F), highlighting the climatic contrast. As the year transitions back into autumn, temperatures decrease steadily, with a notable drop by November when temperatures average around 0°C (32°F). Thus, Västernorrland's climate illustrates a clear dichotomy between harsh winters and pleasantly warm summers, shaped by the region's high latitude.
Sundsvall experiences a significant temperature range throughout the year, with January seeing a chilling minimum of -28°C (-18°F) and June offering a warm maximum of 32°C (90°F). For more details on the monthly temperatures in Sundsvall, visit monthly temperatures in Sundsvall.
Precipitation in Västernorrland exhibits a notable seasonal pattern, with the winter months typically receiving moderate amounts. January averages 53 mm (2.1 in) of precipitation over about 9 days, while February and March follow closely with 44 mm (1.7 in) and 44 mm (1.8 in), respectively. The arrival of spring is marked by a slight decline in precipitation levels, with April recording only 31 mm (1.2 in). However, as the region transitions into summer, moisture levels begin to rise, peaking in July at 78 mm (3.1 in), which is accompanied by a higher frequency of rainy days.
The late summer and autumn months maintain this heightened level of precipitation, with August closely trailing July at 77 mm (3.0 in), and September receiving 66 mm (2.6 in). Autumn brings further increases, particularly in October, when rainfall surges to 92 mm (3.6 in), marking one of the wettest months of the year. Consequently, November and December experience 52 mm (2.1 in) and 77 mm (3.0 in) of precipitation, respectively, as snowfall begins to enhance the winter landscape. Overall, Västernorrland's precipitation trend reflects a clear increase in moisture during the warmer months, transitioning into heavier amounts in late autumn.
In Västernorrland, Sweden, sunshine duration experiences a notable transformation throughout the year, with a marked increase from the dark winter months to the bright summer season. January begins with a mere 60 hours of sunshine, which gradually rises in February to 156 hours. By March, this trend accelerates, as the region benefits from 269 hours of sunlight, laying the foundation for a vibrant spring. April heralds an impressive increase to 364 hours, signaling the end of winter darkness and the growing potency of the sun as days lengthen.
The summer months truly showcase Västernorrland's potential for abundant sunshine, peaking in July with 490 hours of radiant sunlight. June and August also exhibit impressive levels, with 488 hours and 403 hours, respectively, making these months prime for outdoor activities. As autumn takes hold, sunshine hours decrease, with September witnessing 273 hours and a further decline to 111 hours in November, leading into the return of winter. This seasonal variation highlights not only the dramatic changes in daylight experienced throughout the year but also underscores the importance of sunlight for both the ecosystem and the local lifestyle in this northern landscape.
In Västernorrland, Sweden, the UV Index reveals distinct seasonal fluctuations, reflecting the varying intensity of sun exposure throughout the year. During the winter months, specifically January and February, the UV Index remains low at 1, requiring minimal protection with a generous burn time of 45 minutes. As spring approaches, March sees a moderate increase to a UV Index of 3, while April climbs to 4, indicating a growing need for sun protection as the days become sunnier. May continues this trend, reaching a UV Index of 5. These months serve as a gentle reminder for residents to start planning for greater sun exposure and to take appropriate precautions.
The peak UV Index occurs during the summer in Västernorrland, specifically in June and July, when it reaches 6 and 7 respectively, both categorized as high. This signifies a dramatic increase in sun intensity, necessitating reduced exposure times of only 25 minutes for skin sensitivity. As summer gives way to autumn, the UV Index gradually declines; August and September maintain a moderate level at 5 and 4, respectively. By October, the index lowers to 2, with winter months reverting to a low exposure category again. Understanding these UV Index trends is essential for ensuring safety and enjoyment during outdoor activities across the seasons in Västernorrland.
UV Risk Categories
Daylight duration in Västernorrland, Sweden, showcases pronounced seasonal variations that reflect the dramatic shifts in solar exposure typical of this northern region. In January, daylight is sparse, offering just 5 hours of light, gradually increasing to 8 hours in February. By March, the days lengthen significantly to 11 hours, and as the spring progresses into April, daylight further extends to 14 hours. The peak of the year occurs during the summer months, with June basking in an impressive 19 hours of daylight, providing ample opportunity for outdoor activities and an invigorating atmosphere.
As summer transitions to fall, daylight hours begin to decrease, with July still offering 18 hours, but tapering off to 15 hours by August. September witnesses a further decline to 12 hours as autumn sets in. The reduction continues into October, with just 9 hours of daylight, and the cycle concludes with the low points of winter: 6 hours in November and a mere 4 hours in December. These daylight trends not only impact daily life in Västernorrland but also shape the local culture and seasonal activities, emphasizing the unique relationship between light, nature, and community life in this northern Swedish landscape.
Sundsvall, Sweden experiences a diverse climate with cold winters and mild summers. January averages around -5°C (24°F), dropping to a minimum of -28°C (-18°F), while July sees milder temperatures averaging 16°C (61°F) with maximums reaching 30°C (87°F). Precipitation varies throughout the year, peaking in October with 89 mm (3.5 in) and reaching its lowest in April at 30 mm (1.2 in). Sunshine is abundant in summer, with July enjoying 499 hours, but this decreases to only 54 hours in December. For more details, visit Sundsvall climate.
In conclusion, Västernorrland, Sweden, presents a fascinating interplay of climate characteristics, including its temperature patterns, precipitation rates, sunshine duration, UV Index, and daylight duration. The region experiences a cold subarctic climate with notable seasonal variations, from harsh winters with limited sunlight to vibrant summers filled with extended daylight and increased sun exposure. Understanding these climatic elements is crucial for residents and visitors alike, as they influence not only outdoor activities and lifestyle choices but also the broader ecosystem dynamics. As Västernorrland continues to confront the challenges posed by climate change, the insights gained from these climatic trends will be invaluable for developing sustainable practices and preserving the natural beauty that defines this unique northern environment.