Last updated: August 27, 2025
In Sundsvall, Sweden, January presents a captivating winter landscape characterized by chilly temperatures. The month sees a maximum of 8°C (47°F), while the average temperature hovers around a brisk -5°C (24°F). Cold snaps can plunge the mercury to a frigid minimum of -28°C (-18°F), showcasing the extremes of this northern winter. Precipitation is frequent, with 55 mm (2.1 in) falling over approximately 9 days, and the air remains notably humid at 97%, making for a stark but beautiful atmosphere. Visitors can expect winter wonderland conditions, perfect for enjoying outdoor activities amid the snowy backdrop.
In Sundsvall, Sweden, January showcases a striking winter chill, with temperatures dipping as low as -28°C (-18°F). Despite this biting cold, the month maintains an average temperature around -5°C (24°F), offering a brief respite on milder days that can reach up to 8°C (47°F). The trend of harsh winters transitions slightly into February, where temperatures remain tough yet consistently align with January's averages. As that chill begins to give way toward spring, March hints at a gradual warming, with an average temperature hovering just below freezing at -1°C (30°F) and occasional peaks that flirt with 13°C (55°F). This steady climb foreshadows the more temperate conditions ahead in April, where the crisp winter air makes way for the refreshing sigh of spring. Overall, the temperature progression from January through March captures Sundsvall's classic Scandinavian winter experience while hinting at the promise of warmer days to come.
In January, Sundsvall experiences a moderate level of precipitation, totaling 55 mm (2.1 in) over 9 days. As the winter season gets underway, the city sees a consistent flow of rain and snow, laying the groundwork for an icy landscape. This amount is slightly higher than February's 44 mm (1.7 in), indicating that the early months of the year tend to be wetter compared to later winter weeks. As spring approaches and temperatures begin to shift, the precipitation gradually decreases, with April dropping to just 30 mm (1.2 in), although it picks up again in the summer months. This trend reflects a typical Nordic climate, where winter's chill gives way to a refreshing mix of rain and sunshine, influencing both the environment and local activities throughout the year.
In January, Sundsvall, Sweden experiences a notably high humidity level of 97%, setting the tone for a winter filled with moisture. As the season progresses into February, the humidity slightly decreases to 95%, and continues its gradual decline to 92% in March. Spring brings relief as humidity drops further, reaching 86% in April and 80% in May, marking the transition to drier conditions. However, the summer months signal a resurgence in humidity, climbing back to 80% in July and peaking again in August at 86%. As autumn approaches, humidity begins to rise once more, averaging 89% in September and maintaining high levels through October at 93%, and November at 94%. December closes the year with a slight dip to 96%, illustrating a clear seasonal pattern where winter and late autumn are characterized by consistently high humidity, while spring and summer offer a brief respite.
In January, Sundsvall experiences a low UV Index of 1, indicating minimal sun exposure risk with a burn time of 45 minutes. This trend continues into February, where the UV Index remains the same, suggesting a consistent pattern of low sun intensity during the early winter months. However, as spring approaches, a noticeable shift occurs; by March, the UV Index rises to 3, marking a move into the moderate exposure category with a reduced burn time of 30 minutes. This moderate level persists into April and May, where values peak at 5, highlighting the need for increased sun protection as daylight hours extend. As summer arrives, both June and July see the UV Index reach 6, categorizing it as high exposure, and further reducing burn times to just 25 minutes. Following this peak, a gentle decline occurs during late summer and into fall, with August showcasing a moderate of 5, before tapering off to lower levels by September and October. Thus, it's clear that as the year progresses, individuals in Sundsvall should be increasingly mindful of UV exposure, especially from late spring through summer. For more details, visit Sundsvall UV Index.
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In Sundsvall, Sweden, January ushers in the year with 64 hours of sunshine, setting a chilly stage for the winter months. However, as the calendar turns to February, optimism rises with a dramatic increase to 160 hours, hinting at the upcoming thaw. By March, the days become noticeably longer, boasting 266 hours of sunlight, and by April, the sun is shining even brighter with 366 hours. The warmth intensifies, peaking in the summer months as June and July bask in nearly 500 hours of glorious light each. Even as August begins to wane, the sun delivers a robust 411 hours, followed by a gentle decline into autumn and winter with 282 hours in September and tapering off to just 54 hours by December. This seasonal journey paints a vivid picture of Sundsvall's shifting sunlight, capturing the essence of varying moods throughout the year.
In Sundsvall, Sweden, the likelihood of sunny weather in January is relatively low, with only a 16% chance of sunshine gracing the landscape. This trend of limited sunlight continues into the early months of the year, as February sees a slight increase to 34%, signaling the beginning of a gradual transition towards more favorable weather conditions. As spring approaches, the chances of clear skies become more promising, climbing to 38% in March and reaching 46% by April. However, May takes a dip back down to 28% before summer brings the highest likelihood of sun in July, soaring to 51%. The overall pattern highlights a slow but steady progression in sunny days as winter fades, making January the heart of a season that yearns for more light.
In Sundsvall, Sweden, the daylight duration experiences a remarkable transformation throughout the year, beginning with a mere 6 hours in January. As winter gives way to spring, daylight progressively increases, reaching 11 hours by March and expanding to a generous 14 hours in April. The peak of summer shines brightest in June, offering 19 hours of daylight, allowing residents to bask in the sun long into the evening. However, as August transitions to September, daylight gradually decreases, dropping to 12 hours by the month's end. The descent continues through autumn, with November seeing just 6 hours and December trailing behind with a mere 5 hours of daylight. This rhythmic cycle highlights the interplay between the seasons in Sundsvall, inviting both celebration during the long summer days and cozy introspection in the shorter winter months.
In January in Sundsvall, Sweden, the air carries a brisk average wind speed of 3.2 m/s (7 mph), marking the start of the year with a refreshing chill. As winter progresses into February and March, there's a noticeable increase in wind speed, rising to 3.7 m/s (8 mph) and 3.8 m/s (9 mph) respectively, suggesting a more dynamic atmospheric environment. However, by spring, particularly in April and May, the winds begin to settle slightly, hovering around 3.8 m/s (8 mph) and then dropping to 2.9 m/s (6 mph). This pattern of variability continues through the warmer months, where July and August feature mild breezes, before picking up again in the fall. Notably, in October, the wind speed climbs back to 3.7 m/s (8 mph), hinting at the onset of winter's return. As the year closes, the wind speeds stabilize around 3.4 m/s (8 mph) in December, encapsulating a year marked by distinct seasonal shifts in the winds of Sundsvall.
Weather in Sundsvall varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Sundsvall, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February weather shares some similarities, particularly in temperature ranges, but they also exhibit notable differences. In January, the minimum temperature dips to a chilly -28°C (-18°F), while February is slightly warmer with a minimum of -22°C (-7°F). The average temperature remains consistent at -5°C (24°F) for both months, and the maximum temperature reaches a stable 8°C (47°F). Precipitation is somewhat higher in January, totaling 55 mm (2.1 in) over 9 days compared to February’s 44 mm (1.7 in) across 8 days. Humidity levels also decrease slightly from January's 97% to February's 95%. For more specific details about February weather, you can check Sundsvall weather in February.
January and March present a stark contrast in weather conditions. In January, temperatures can plummet to a minimum of -28°C (-18°F), with an average of -5°C (24°F) and a maximum of only 8°C (47°F). The month sees significant precipitation, totaling 55 mm (2.1 in) over 9 days, and high humidity levels at 97%. In contrast, March offers a more gradual warming trend, with minimum temperatures dropping to -23°C (-10°F), an average of -1°C (30°F), and a maximum reaching 13°C (55°F). While March has slightly less precipitation at 45 mm (1.8 in) over the same number of days, humidity decreases to 92%. For more detailed information, you can check Sundsvall weather in March.
January and April present stark contrasts in weather conditions. In January, temperatures can plummet to a chilling minimum of -28°C (-18°F), with an average temperature around -5°C (24°F) and a maximum reaching only 8°C (47°F). The month sees a significant amount of precipitation, totaling 55 mm (2.1 in) over 9 days, accompanied by high humidity levels of 97%. In contrast, April experiences a much milder climate, with minimum temperatures at -14°C (7°F) and averages climbing up to 3°C (38°F), peaking at a pleasant 21°C (70°F). Precipitation decreases to 30 mm (1.2 in) over 8 days, and humidity also drops to 86%. This transition marks a shift from the depths of winter to the warmth of spring. For more detailed information on April weather, you can visit Sundsvall weather in April.
January and May present stark contrasts in weather. In January, temperatures can plunge as low as -28°C (-18°F), with an average temperature of -5°C (24°F) and maximums reaching only 8°C (47°F). The month is characterized by high humidity at 97% and receives about 55 mm (2.1 in) of precipitation over 9 days. In stark contrast, May sees significantly milder temperatures, ranging from a minimum of -4°C (25°F) to an average of 9°C (48°F) and peaking at a pleasant 27°C (81°F). Moreover, May experiences less precipitation, with 37 mm (1.5 in) spread over the same number of days, and lower humidity at 80%. For a more comprehensive view of what to expect, check out Sundsvall weather in May.
The weather in January is characterized by frigid temperatures, with lows plummeting to -28°C (-18°F) and an average of just -5°C (24°F), while the mercury barely rises above 8°C (47°F). In contrast, June offers a dramatic shift, showcasing much milder conditions with minimum temperatures of 1°C (34°F) and averages reaching a pleasant 15°C (58°F), peaking at a maximum of 32°C (90°F). Both months see similar precipitation levels, around 55-57 mm, occurring over approximately 9 days, but January's humidity is significantly higher at 97% compared to June's 76%. For a more detailed overview of June weather, visit Sundsvall weather in June.
In January, the weather is characterized by frigid temperatures, with averages around -5°C (24°F) and plunging as low as -28°C (-18°F), while humidity remains a high 97%. Precipitation is relatively light at 55 mm (2.1 in) over about 9 days, leading to a cold and often gray atmosphere. In contrast, July brings a notable warmth with average temperatures of 16°C (61°F), and highs reaching up to 30°C (87°F). Although it sees slightly more precipitation at 77 mm (3.0 in) across 11 days, the humidity drops to a more comfortable 80%. For a detailed look at July weather, you can check Sundsvall weather in July.
In January, the weather is characterized by frigid temperatures, with a minimum of -28°C (-18°F) and an average of -5°C (24°F), making it the coldest month of the year. This month sees about 55 mm of precipitation over 9 days, coupled with high humidity levels at 97%, contributing to a bitter chill. In contrast, August offers a much warmer climate with a minimum of 2°C (36°F) and an average of 15°C (59°F). Temperatures can reach a maximum of 27°C (82°F), and although August receives slightly more precipitation at 74 mm, it is spread over 13 days, and the humidity is lower at 86%. For more detailed information, you can check out Sundsvall weather in August.
January and September present stark contrasts in weather. In January, temperatures plummet to a minimum of -28°C (-18°F), with an average around -5°C (24°F) and a maximum reaching only 8°C (47°F). The month experiences high humidity at 97%, along with 55 mm (2.1 in) of precipitation over 9 days. In stark contrast, September offers milder conditions, with temperatures ranging from a minimum of -2°C (29°F) to an average of 10°C (51°F) and a comfortable maximum of 21°C (71°F). This month also sees increased precipitation, totaling 64 mm (2.5 in) over 13 days, but the humidity is lower at 89%. For a detailed look at this month, you can check Sundsvall weather in September.
January and October present distinctly different weather experiences. In January, temperatures plummet, with minimums reaching as low as -28°C (-18°F) and an average of -5°C (24°F), while only a few days rise above freezing. The month sees 55 mm of precipitation over 9 days, with high humidity levels around 97%. Conversely, October offers a much milder climate, with temperatures ranging from a minimum of -8°C (18°F) to a pleasant maximum of 20°C (68°F), averaging 5°C (42°F). Although October experiences more precipitation at 89 mm over 14 days, the humidity remains slightly lower at 93%. For more detailed insights into October weather in Sundsvall, you can explore Sundsvall weather in October.
In January, the weather is significantly colder, with temperatures ranging from a frigid -28°C (-18°F) to a maximum of only 8°C (47°F), and an average temperature of -5°C (24°F). It also features high humidity at 97% and sees around 55 mm (2.1 in) of precipitation over approximately 9 days. In contrast, November offers a milder atmosphere, with temperatures ranging from -15°C (5°F) to a more moderate maximum of 13°C (56°F) and an average of 0°C (32°F). Precipitation is slightly less at 47 mm (1.9 in) over around 10 days, and humidity is a bit lower at 94%. For a more detailed look at November weather, visit Sundsvall weather in November.
January and December present a stark contrast in winter weather, with January typically being slightly colder. In January, temperatures can plunge to a minimum of -28°C (-18°F) and a maximum of 8°C (47°F), averaging -5°C (24°F). This month also sees significant precipitation, totaling 55 mm (2.1 in) over about 9 days, with humidity levels reaching a high 97%. In comparison, December experiences milder temperatures, with a minimum of -22°C (-7°F) and an average of -3°C (27°F), while the maximum remains similar at 7°C (46°F). December has more precipitation at 76 mm (3.0 in), spread across approximately 13 days, and slightly lower humidity at 96%. For more detailed information about December weather, visit Sundsvall weather in December.
January in Sundsvall showcases a striking contrast to other months, as bitter cold sets in, with temperatures dipping significantly lower than the milder summer months. While the average temperature rests around a chilly -5°C, it's not uncommon to feel the sting of minimums plummeting to -28°C. This month also experiences heightened humidity at 97%, contributing to the bone-chilling feel. Alongside the 55 mm of precipitation spread over 9 days, January transforms into a wintry wonderland, creating a stark shift from the warmth and lush greenery of the other seasons. For those interested in delving deeper into Sundsvall's unique weather patterns, visit Sundsvall Climate.