The climate of Sundsvall
Sundsvall,
Sweden, experiences the dominant climate of subarctic, severe winter, no dry season, and a cool summer, as classified under the Köppen climate system as Dfc. This geographic area, situated along the eastern seaboard of Sweden, exhibits significant temperature variations throughout the year with contrasting levels of precipitation and humidity.
A quick glance at the climate data throughout the year exhibits considerable seasonal changes. The average high temperatures range from -3°C (26.6°F) in
January to a peak of 20.3°C (68.5°F) in
July, whereas the average low temperatures fluctuate from -6.6°C (20.1°F) in January to 11.4°C (52.5°F) in July. The recorded variance in humidity levels is chiefly seen from 66% in the dry summer months of
May and
June, rising to high relative humidity levels of 91% in
February. Precipitation ranges between 19mm (0.75") in
April to a high of 45mm (1.77") in July, establishing July as the rainiest month. Overall, the city experiences a broad spectrum of weather makeup - every parameter from temperature, humidity, precipitation to daylight and sunshine hours, UV index, and wind speed shows significant fluctuation indicating a diverse climatic pattern.
Taking a deep dive into the specifics, Sundsvall goes through unique weather conditions and patterns. The city experiences the maxim um snowfall of 217mm (8.54") in January, after which the levels start to decline, reaching zero between June and
September. It then picks up in
October, peaking again in
December with a snowfall of 197mm (7.76"). Maximum daylight hours are seen in June with 19.8 hours, while December sees the least amount of daylight with just 5.2 hours. The sunshine hours mirror the daylight pattern, with peak hours in June, 12.3 hours, and a low of 1.7 hours in December.
The best time to visit Sundsvall
Given
Sundsvall's varied climate, the best time to visit largely depends on the desired activities. Nevertheless, the most favorable period is typically between
June and
August. During these summer months, the city sees an average high temperature ranging from 17.2°C (63°F) to 20.3°C (68.5°F), offering a conducive environment for outdoor activities. It's also the time when the city experiences the longest daylight hours, ranging from 17.9 hours to 19.8 hours. Additionally, the rainfall steadies to an average of 28mm (1.1") to 45mm (1.77"), and snowfall is non-existent, making it an ideal time for sightseeing and enjoying the Swedish summer.
The worst time to visit Sundsvall
The less favorable time to visit
Sundsvall is during the winter months, from
November to
March. The city undergoes colder conditions, with average high temperatures ranging between -1.3°C (29.7°F) to 2°C (35.6°F), and average lows between -0.7°C (30.7°F) to -6.6°C (20.1°F). These months also witness the highest snowfall, with an average snowfall reaching up to 217mm (8.54") in
January. Also, the daylight hours shrink to a bare minimum, between 5.2 hours to 8.9 hours. This drop in temperature and sunlight makes it challenging for outdoor activities and sightseeing.
Spring weather in Sundsvall
Spring in
Sundsvall, spanning from
March to
May, can be quite unpredictable. Average high temperatures begin at 1°C (33.8°F) in March and steadily rise to 12.8°C (55°F) in May, whereas the average low temperatures range from -4.3°C (24.3°F) to 4.8°C (40.6°F). Rainfall holds steady, with a moderate amount landing from 19mm (0.75") in March to 33mm (1.3") in May. Although snowfall lessens during this time, it persists, with an average snowfall of 193mm (7.6") in March, 35mm (1.38") in
April, and 21mm (0.83") in May. With daylight hours increasing from 11.8 hours in March to 17.9 hours in May, the season gradually ushers residents into the much-awaited summer.
Summer weather in Sundsvall
Sundsvall exhibits a delightful summer season, extending from
June to
August, with average high temperatures between 17.2°C (63°F) to 20.3°C (68.5°F) and average lows from 8.8°C (47.8°F) to 11.4°C (52.5°F). Interestingly, rainfall peaks to 45mm (1.77") in
July but tapers to 32mm (1.26") in August. There's an absolute absence of snowfall during these months. The city basks in the most abundant daylight hours, from 19.8 hours to 18.8 hours. On average, constituting the longest days throughout the year, the summer season provides the perfect backdrop for outdoor recreation.
Autumn weather in Sundsvall
Autumn in
Sundsvall, typically from
September to
November, showcases a blend of changing colors and chillier weather. Average high temperatures drop from 14°C (57.2°F) in September to 2°C (35.6°F) in November, while the average low temperatures decrease from 7.3°C (45.1°F) to -0.7°C (30.7°F). Rainfall remains relatively stable, between 32mm (1.26") to 36mm (1.42"), and a reappearance of snow in November, totaling 73mm (2.87"). Daylight hours start to gradually decline from 13 hours in September to just 7 hours in November, signalling the onset of winter.
Winter weather in Sundsvall
Winter in
Sundsvall, from
December to
February, is intense with average high temperatures between -3°C (26.6°F) to -1.3°C (29.7°F) and average lows from -6.6°C (20.1°F) to -4.5°C (23.9°F). December records the highest snowfall at 197mm (7.76") before lessening to 153mm (6.02") in February. Notably, during these months, the city experiences the shortest daylight hours, ranging from 6.2 hours in December to a slight increase to 8.9 hours in February. Despite the chill, the city's winter landscape is truly a sight to behold, radiating a unique stellar beauty.
Weather in January
Sundsvall,
Sweden, experiences its coldest climate in
January, with temperatures fluctuating between -6.6°C (20.1°F) and -3°C (26.6°F). The sea remains frigid at 1°C (33.8°F), maintaining a withering environment. Additionally, the daylight duration is merely 6.2 hours, which limits outdoor activities.
Weather in January » Weather in February
Destination
Sundsvall transitions to a slightly warmer month in
February. The sea water's temperature remains consistent at 1°C (33.8°F), suggesting the continuation of a cold atmosphere throughout the month. February inherits the snowfalls from
January but at a lower magnitude, indicating the onset of a transition phase in weather conditions.
Weather in February »Weather in March
The weather changes more significantly in
March with temperatures ranging from -4.3°C (24.3°F) to 1°C (33.8°F), marking a shift from the more deep-freezing conditions of the preceding months. Snowfall reduces noticeably from 193mm (7.6") to 35mm (1.38"), suggesting the dominance of milder weather conditions.
Weather in March »
Weather in April
In
April, the city enjoys a warming trend as the mercury begins to rest above freezing, transforming the white landscape into a vibrant setting. The lowest temperature climbs to 0.5°C (32.9°F), indicating an improvement from
March's chilliness.
Weather in April »Weather in May
May sees the meteorological conditions in
Sundsvall further transform into a milder and more pleasant climate. It brings comfortable warmth, greenery, and a noticeable reduction in rainfall from 33mm (1.3") to 28mm (1.1"), highlighting the pleasing transition from spring to early summer.
Weather in May » Weather in June
June ushers
Sundsvall into the warm embrace of summer, featuring an enjoyable seaside climate conducive to beach outings. The rise in both sea temperatures to 9°C (48.2°F) and daylight hours to 19.8 hints at a joyous summer's arrival.
Weather in June »
Weather in July
July is the hottest month in
Sundsvall with temperatures reaching up to 20.3°C (68.5°F), turning the city into an ideal summer escape. Despite this temperature peak, the weather remains pleasant due to the optimal sea temperature, adding charm to the region.
Weather in July » Weather in August
August experiences a slight dip from
July's peak temperatures, yet the weather remains comfortably warm in
Sundsvall. The sea temperature reaches its annual maximum of 15°C (59°F), luring beach and marine enthusiasts alike. This month inherits July's weather traits with slightly cooler nights, intensifying the enjoyable contrast of refreshing mornings and warm afternoons.
Weather in August » Weather in September
September signals the transition from summer to autumn, offering a blend of warm and cool days in
Sundsvall. With temperatures oscillating between 7.3°C (45.1°F) and 14°C (57.2°F), the month witnesses a gradual decrease in warmth.
Weather in September »
Weather in October
The climate in
Sundsvall becomes noticeably colder in
October, as reflected in the temperatures dipping below 10°C (50°F) on average. The sea temperature cools down to 8°C (46.4°F), preparing for the incoming winters. Despite this, the daylight duration remains sufficient, presenting opportunities for fulfilling daytime activities.
Weather in October »Weather in November
November forecasts a steeper plunge in temperatures, with measurements dipping to -0.7°C (30.7°F), indicating the onset of the chilly winter. The sea temperature continues to decrease, resting at 5°C (41°F) and marking the unavoidable transition into wintry conditions.
Weather in November » Weather in December
December signifies the arrival of the frosty winter season in
Sundsvall, with temperatures fluctuating from -1.3°C (29.7°F) to -4.5°C (23.9°F). The sea temperature touches a low of 3°C (37.4°F), accompanying the biting cold of the air.
Weather in December » [Resources]