Climate and monthly weather forecast
Södertälje, Sweden

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The climate of Södertälje

Located in the depth of Sweden, Södertälje's weather falls under the Koppen climate classification Dfb - a humid continental climate type - On a broad level, the city exhibits no dry season but instead shows a warm summer. Annual atmospheric conditions in Södertälje outline a distinct cycle in terms of temperature, humidity, rainfall, and other crucial meteorological components.

Temperature fluctuation follows a clear seasonal pattern. The minimum average temperature is as low as -3.6°C (25.5°F) in February and rises gradually to reach a peak of 13.2°C (55.8°F) in July, retreating slowly afterwards. On the contrary, the average high temperature kicks off from -0.5°C (31.1°F) in January, climbing to a zenith of 21.3°C (70.3°F) in July before going on a downward spiral.

Humidity remains relatively stable with minimal fluctuations, oscillating between 72% and 88%. It can be said that the city's atmosphere often carries a high degree of moisture throughout the year.

Rainfall manifests a different type of pattern, with the peak of 44mm (1.73") in July and the low point of 15mm (0.59") in April. Snowfall, however, shows maximum thickness in February at 87mm (3.43"), going down to 15mm (0.59") in April, and subsequently ceasing from May to September, only to recommence in October, ending the year with a snow thickness of 62mm (2.44") in December.

The best time to visit Södertälje

A careful evaluation of the weather parameters suggests that the best time to visit Södertälje is during the summer months from June to August. During this period, temperatures are at their most pleasant, ranging from 9.7°C (49.5°F) to 21.3°C (70.3°F). Besides, the city experiences extended daylight hours; amounting up to 17.7 to 18.4 hours per day, which makes for excellent sightseeing conditions. Sunshine extends up to 10.9 to 12.3 hours a day, representing an enticing element for photo enthusiasts or picnic lovers.

The worst time to visit Södertälje

Conversely, the bleak winter months from December to February constitute the least opportune time to visit Södertälje due to harsh climatic conditions. Temperatures drop to a freezing low between -3.5°C (25.7°F) and -1.9°C (28.6°F), coupled with lesser daylight hours ranging from 6.3 hours to 7.1 hours a day. The large snow thickness that reaches up to 87mm (3.43"), adds to the harsh and severe weather conditions during this period.

Spring weather in Södertälje

Spring ushers in pleasant atmospheric conditions in Södertälje. Between March and May, temperatures start to climb from a low -1.5°C (29.3°F) to a comfortable 6.5°C (43.7°F) and a high that grows from 3.6°C (38.5°F) to 14.5°C (58.1°F). Rainfall sees a slight increase to 29mm (1.14") in May from 15mm (0.59") in April. The daylight hours increase steadily providing between 11.9 hours to 14.5 hours of daylight per day.

Summer weather in Södertälje

Summers in Södertälje, encompassing June to August, feature the longest daylight hours of the year. The span ranges from 17.7 hours to 18.4 hours per day, creating ample opportunities for outdoor activities. Average temperatures peak at this time, fluctuating between 10.4°C (50.7°F) and 21.3°C (70.3°F) offering a warm and comfortable climate.

Autumn weather in Södertälje

September through to November marks the period of autumn, which sees declining temperatures from 9.6°C (49.3°F) to 2.2°C (36°F). During this time, daylight hours reduce drastically, leaning towards longer nights with only 7.7 hours to 12.8 hours of daylight within a day. Rainfall, however, witnesses a steady downfall from 35mm (1.38") in September down to 29mm (1.14") in November.

Winter weather in Södertälje

Winter in Södertälje bears all the characteristics of a typical harsh Scandinavian winter. From December to February, the city faces severe cold with temperatures peaking downwards between -3.5°C (25.7°F) and -1.9°C (28.6°F). Additionally, daylight hours are at their shortest ranging from 6.3 hours to 7.1 hours per day. These conditions also unriddle the high snowfall during this period, setting a white blanket across the city.

Weather in January

Södertälje, Sweden, welcomes the new year with typical wintry weather, marked by snowfall, which sets the tone for the rest of the month. A significant characteristic of January's weather is high humidity and established low temperature ranges from -3.5°C (25.7°F) to -0.5°C (31.1°F). Weather in January »

Weather in February

The winter continues in February with weather fairly similar to January, although minor changes in temperature and precipitation patterns can be seen. In contrast from previous month, precipitation leans more towards snow than rain, with the city receiving 87mm (3.43") of snowfall. Weather in February »

Weather in March

With the arrival of March, Södertälje transitions from a white winter to a subtler spring. A noticeable increase in average high temperatures is observable, hinting towards the nearing warmer months. Weather varies from late snowfall to early spring rains, totaling up to 28mm (1.1") rainfall in March. Weather in March »

Weather in April

As we move into the heart of spring, April's weather brings warmer temperatures and longer days to Södertälje. The feel of the wind changes, as the spring breeze replaces winter chills, signaling a pleasant season. The winter's residual snow finally gives way to more frequent rainfall which registers at 15mm (0.59") for the month. Weather in April »

Weather in May

May in Södertälje is characterized by the beauty of late spring with a surge in temperature. The lengthening of daylight hours is a distinctive feature of this month. Opposite to April's lighter showers, May experiences 29mm (1.14") of rainfall, a bit more than the previous month. Weather in May »

Weather in June

June sees the commencement of summer in Södertälje. The city witnesses the longest daylight hours of the year. Rainfall climbs to its yearly high in June with 37mm (1.46") precipitation indicating the beginning of the wet season. The mercury shows a consistent rise maintaining warm temperatures throughout the month. Weather in June »

Weather in July

July is the hottest month of the year in Södertälje, with a generous portion of daylight and sunshine. July distinguishes itself by reaching its yearly peak temperatures, from 13.2°C (55.8°F) to 21.3°C (70.3°F). Beach and water activities are popular during this month. Weather in July »

Weather in August

The summer continues in August, with conditions similar to July. Yet, a slightly lower temperature can be observed as the summer begins to fade away. A significant feature of August weather is a balance between rainfall and sunshine hours. Weather in August »

Weather in September

September marks the onset of autumn in Södertälje. Temperatures commence their descent as days get shorter. September attracts a lesser amount of rainfall registering at only 24mm (0.94") for the month. In spite of the declining temperatures, the city continues to enjoy reasonable sunshine hours. Weather in September »

Weather in October

October in Södertälje is defined by the further dip in temperature, marking the clear transition from summer to winter. A substantial amount of rainfall is prominent for October, accumulating up to 35mm (1.38") over the month. Weather in October »

Weather in November

With the arrival of November, winter begins its onset in Södertälje, with a significant drop in temperature. Precipitation this month is divided between late autumn rainfall and early winter snowfall amounting to 10mm (0.39"). Weather in November »

Weather in December

Södertälje concludes the calendar year with a heavy winter season in December. The cold gets serious as the city experiences its second-highest total of snowfall in the year, gearing up to 62mm (2.44"). December offers a true winter experience with a festive feel as the city glistens under the winter snow. Weather in December »

Frequently asked questions

What are the coldest months in Södertälje?

January is Södertälje's coldest month, registering average high temperatures of -0.5°C (31.1°F) and lows of -3.5°C (25.7°F).

What are the most humid months in Södertälje?

The months with the highest humidity are January, February, November and December, with an average relative humidity of 88%.

How many days does it rain in Södertälje?

In Södertälje, during the entire year, the rain falls for 131.4 days and collects up to 350mm (13.78") of precipitation.

When does it snow in Södertälje?

January through May, October through December are months with snowfall in Södertälje.

How much does it snow in Södertälje?

Throughout the year, in Södertälje, Sweden, there are 45.7 snowfall days, and 309mm (12.17") of snow is accumulated.

What are the months with the lowest UV index in Södertälje?

January and February, with an average maximum UV index of 1, are months with the lowest UV index in Södertälje, Sweden.

What is the snowiest month in Södertälje?

February is the month with the most snowfall in Södertälje. Snow falls for 11 days and accumulates 87mm (3.43") of snow.

What is the driest month in Södertälje?

The month with the least rainfall in Södertälje is April, when the rain falls for 10.3 days and typically collects 15mm (0.59") of precipitation.

What is the least humid month in Södertälje?

The least humid month in Södertälje, Sweden, is May, with an average relative humidity of 72%.

When it does not snow in Södertälje?

In Södertälje, snow does not fall in June through September.

When are the longest days in Södertälje?

With an average of 18h and 24min of daylight, June has the longest days of the year in Södertälje.

What month has the most sunshine in Södertälje?

The month with the most sunshine in Södertälje, Sweden, is June, with an average of 12.3h of sunshine.

What is the month with the highest UV index in Södertälje?

The months with the highest UV index in Södertälje are June and July, with an average maximum UV index of 5.

What is the warmest month in Södertälje?

July is Södertälje's warmest month, registering average high temperatures of 21.3°C (70.3°F) and lows of 13.2°C (55.8°F).

What is the wettest month in Södertälje?

The month with the most rainfall in Södertälje, Sweden, is July, when the rain falls for 15.3 days and typically aggregates up to 44mm (1.73") of precipitation.

When is Daylight Saving Time (DST) in Södertälje?

On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Södertälje, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.

What is the month with the shortest days in Södertälje?

The month with the shortest days is December, with an average of 6h and 18min of daylight.

What is the month with the least sunshine in Södertälje?

With an average of 2.5h of sunshine, December has the least sunshine of the year in Södertälje.

Average temperature
Södertälje, Sweden

Average temperature - Södertälje, Sweden

The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (-0.5°C).

The month with the highest average low temperature is July (13.2°C).
The coldest month (with the lowest average low temperature) is February (-3.6°C).

Average pressure
Södertälje, Sweden

Average pressure - Södertälje, Sweden

The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008mbar).

Average wind speed
Södertälje, Sweden

Average wind speed - Södertälje, Sweden

The windiest month (with the highest average wind speed) is December (18km/h).
The calmest months (with the lowest average wind speed) are July and August (12.5km/h).

Average humidity
Södertälje, Sweden

Average humidity - Södertälje, Sweden

The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is May (72%).

Average rainfall
Södertälje, Sweden

Average rainfall - Södertälje, Sweden

The wettest month (with the highest rainfall) is July (44mm).
The driest month (with the least rainfall) is April (15mm).

Average rainfall days
Södertälje, Sweden

Average rainfall days - Södertälje, Sweden

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is February (5.3 days).

Average snowfall
Södertälje, Sweden

Average snowfall - Södertälje, Sweden

The month with the highest snowfall is February (87mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days
Södertälje, Sweden

Average snowfall days - Södertälje, Sweden

The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Södertälje, Sweden

Average daylight / Average sunshine - Södertälje, Sweden

The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).

The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).

Average sunshine days
Södertälje, Sweden

Average sunshine days - Södertälje, Sweden

The month with the most sunshine days is May (16.9 days).
The months with the least sunshine days are June and July (13.6 days).

Average UV index
Södertälje, Sweden

Average UV index - Södertälje, Sweden

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).

Average visibility
Södertälje, Sweden

Average visibility - Södertälje, Sweden

The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).

Södertälje, Sweden

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