January weather forecast
Sundsvall, Sweden

englishespañol中文
Share

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. Snowfall is a prominent feature of January, making travel and mobility a bit challenging. The city witnesses fewer sunny days this month, which adds to the chilling and somber ambiance.

Temperature

The month of January, characterized by an average high of -3°C (26.6°F) and a low of -6.6°C (20.1°F), is recognized as the coldest.

Humidity

In January, the average relative humidity in Sundsvall is 90%.

Rainfall

In January, in Sundsvall, Sweden, the rain falls for 5.1 days. Throughout January, 33mm (1.3") of precipitation is accumulated. Throughout the year, there are 117.2 rainfall days, and 384mm (15.12") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Sundsvall, Sweden. The month with the most snowfall in Sundsvall is January, when snow falls for 15.2 days and typically aggregates up to 217mm (8.54") of snow.

Sea temperature

The months with the coldest seawater are January through March, with an average sea temperature of 1°C (33.8°F).
Note: During swimming, this circumstance is both life-threatening and incredibly perilous. The intense cold sensation provokes rapid hyperventilation. The use of a specialized swimsuit is imperative to prevent thermal injuries.

Daylight

In January, the average length of the day in Sundsvall is 6h and 12min.
On the first day of the month, sunrise is at 09:18 and sunset at 14:29. On the last day of January, sunrise is at 08:22 and sunset at 15:45 CET.

Sunshine

In Sundsvall, the average sunshine in January is 2.5h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In January, the average maximum UV index of 1 translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
[Resources]

Frequently asked questions

What month is the coldest in Sundsvall?

The coldest period in Sundsvall, Sweden, tends to be January, when average temperatures fluctuate between a high of -3°C (26.6°F) and a low of -6.6°C (20.1°F).

How cold is January in Sundsvall?

In January, in Sundsvall, the average high-temperature is -3°C (26.6°F), and the average low-temperature is -6.6°C (20.1°F).

What is the average humidity in January in Sundsvall?

In January, the average relative humidity in Sundsvall, Sweden, is 90%.

How many days does it rain in January in Sundsvall?

In January, in Sundsvall, Sweden, the rain falls for 5.1 days. Throughout January, 33mm (1.3") of precipitation is accumulated.

When does it snow the most in Sundsvall?

The month with the most snowfall in Sundsvall is January, when snow falls for 15.2 days and typically aggregates up to 217mm (8.54") of snow.

How much does it snow in Sundsvall in January?

In January, it is snowing for 15.2 days. Throughout January, 217mm (8.54") of snow is accumulated.

When is the sea coldest in Sundsvall?

January through March, with an average sea temperature of 1°C (33.8°F), are months with the coldest seawater.

What is the sea temperature in January in Sundsvall?

In January, the average sea temperature in Sundsvall is 1°C (33.8°F). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

What is the average length of the day in January in Sundsvall?

In Sundsvall, Sweden, the average day length in January is 6h and 12min.

When is the sunrise / sunset in January in Sundsvall?

In January, on the first day of the month, sunrise is at 09:18 and sunset at 14:29. On the last day of the month, in Sundsvall, sunrise is at 08:22 and sunset at 15:45 CET.

How long on average sun shines in January in Sundsvall?

In January, the average sunshine duration in Sundsvall is 2.5h.

What is the month with the lowest UV index in Sundsvall?

The months with the lowest UV index in Sundsvall, Sweden, are January, February, November and December, with an average maximum UV index of 1.

How high is the UV index in January in Sundsvall?

In January, the average daily maximum UV index in Sundsvall, Sweden, is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Sundsvall, Sweden

Average temperature in January - Sundsvall, Sweden
  • Average high temperature in January: -3°C

The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-3°C).

  • Average low temperature in January: -6.6°C

The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is February (-6.9°C).

[Resources]

Average pressure in January
Sundsvall, Sweden

Average pressure in January - Sundsvall, Sweden
  • Average pressure in January: 1009.9mbar

The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1005.9mbar).

[Resources]

Average wind speed in January
Sundsvall, Sweden

Average wind speed in January - Sundsvall, Sweden
  • Average wind speed in January: 11.9km/h

The windiest month (with the highest average wind speed) is January (11.9km/h).
The calmest month (with the lowest average wind speed) is August (9.5km/h).

[Resources]

Average humidity in January
Sundsvall, Sweden

Average humidity in January - Sundsvall, Sweden
  • Average humidity in January: 90%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (66%).

[Resources]

Average rainfall in January
Sundsvall, Sweden

Average rainfall in January - Sundsvall, Sweden
  • Average rainfall in January: 33mm

The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is April (19mm).

[Resources]

Average rainfall days in January
Sundsvall, Sweden

Average rainfall days in January - Sundsvall, Sweden
  • Average rainfall days in January: 5.1 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.2 days).

[Resources]

Average snowfall in January
Sundsvall, Sweden

Average snowfall in January - Sundsvall, Sweden
  • Average snowfall in January: 217mm

The month with the highest snowfall is January (217mm).
The months with the least snowfall are June, July, August and September (0mm).

[Resources]

Average snowfall days in January
Sundsvall, Sweden

Average snowfall days in January - Sundsvall, Sweden
  • Average snowfall days in January: 15.2 days

The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average sea temperature in January
Sundsvall, Sweden

Average sea temperature in January - Sundsvall, Sweden
  • Average sea temperature in January: 1°C

The best month for swimming (with the highest average sea temperature) is August (15°C).
The coldest months (with the lowest average sea temperature) are January, February and March (1°C).

[Resources]

Average daylight in January /
Average sunshine in January
Sundsvall, Sweden

Average daylight in January / Average sunshine in January - Sundsvall, Sweden
  • Average daylight in January: 6h and 1min

The month with the longest days is June (Average daylight: 19h and 48min).
The month with the shortest days is December (Average daylight: 5h and 12min).

  • Average sunshine in January: 2h and 3min

The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).

[Resources]

Average sunshine days in January
Sundsvall, Sweden

Average sunshine days in January - Sundsvall, Sweden
  • Average sunshine days in January: 12.7 days

The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is February (12.5 days).

[Resources]

Average UV index in January
Sundsvall, Sweden

Average UV index in January - Sundsvall, Sweden
  • Average UV index in January: 1

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

[Resources]

Average cloud cover in January
Sundsvall, Sweden

Average cloud cover in January - Sundsvall, Sweden
  • Average cloud cover in January: 63

The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 42).

[Resources]

Average visibility in January
Sundsvall, Sweden

Average visibility in January - Sundsvall, Sweden
  • Average visibility in January: 7km

The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January, February and March (7km).

[Resources]

Sundsvall, Sweden

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location