January weather forecast
Selfoss, Iceland

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Weather in January

In January, Selfoss experiences temperatures most severe in the annual cycle with a high of 2.2°C (36°F) and a chilly low of -1.2°C (29.8°F). The earliest month of the year tends to be quite humid with cloudy skies and frequent occurrences of rain. Moreover, tourists can expect snowfall during this period, making it an ideal time for those fond of winter sports. Winds also tend to pick up speed, contributing to the overall chilly weather. It's advisable to dress warmly when venturing outside during this month.

Temperature

The average high-temperature during January is a still cold 2.2°C (36°F), almost matching the conditions of the preceding month. January introduces a small decrease to a nighttime average of -1.2°C (29.8°F).

Humidity

January and September, with an average relative humidity of 82%, are the most humid months.

Rainfall

January is the month with the most rainfall. Rain falls for 18.6 days and accumulates 142mm (5.59") of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Selfoss, Iceland, in January, during 11.9 snowfall days, 190mm (7.48") of snow is typically accumulated. In Selfoss, during the entire year, snow falls for 61.9 days and aggregates up to 825mm (32.48") of snow.

Daylight

In Selfoss, the average length of the day in January is 5h and 40min.
On the first day of January, sunrise is at 11:12 and sunset at 15:42. On the last day of the month, sunrise is at 10:06 and sunset at 17:08 GMT.

Sunshine

The month with the least sunshine is January, with an average of 2.4h of sunshine.

UV index

In Selfoss, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 during January translates into the following guidance:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

How cold is it in January?

The high-temperature, in January, in Selfoss, records 2.2°C (36°F), while the low-temperature is -1.2°C (29.8°F).

What are the most humid months?

January and September, with an average relative humidity of 82%, are most humid months.

What is the average humidity in January?

In January, the average relative humidity is 82%.

What is the wettest month in Selfoss?

The month with the most rainfall is January, when the rain falls for 18.6 days and typically aggregates up to 142mm (5.59") of precipitation.

How many days does it rain in January in Selfoss?

In Selfoss, in January, it is raining for 18.6 days, with typically 142mm (5.59") of accumulated precipitation.

How many days does it snow in January?

In Selfoss, in January, during 11.9 snowfall days, 190mm (7.48") of snow is typically accumulated.

How many hours of daylight does Selfoss have in January?

In Selfoss, Iceland, the average day length in January is 5h and 40min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 11:12 and sunset at 15:42. On the last day of the month, sunrise is at 10:06 and sunset at 17:08 GMT.

What is the month with the least sunshine?

With an average of 2.4h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January?

In Selfoss, the average sunshine duration in January is 2.4h.

How high is the UV index in January?

In January, the average daily maximum UV index in Selfoss is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Selfoss, Iceland

Average temperature in January - Selfoss, Iceland
  • Average high temperature in January: 2.2°C

The warmest month (with the highest average high temperature) is July (13.8°C).
The month with the lowest average high temperature is December (1.5°C).

  • Average low temperature in January: -1.2°C

The month with the highest average low temperature is July (8.9°C).
The coldest month (with the lowest average low temperature) is December (-1.9°C).

Average pressure in January
Selfoss, Iceland

Average pressure in January - Selfoss, Iceland
  • Average pressure in January: 996.8mbar

The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.8mbar).

Average wind speed in January
Selfoss, Iceland

Average wind speed in January - Selfoss, Iceland
  • Average wind speed in January: 24.1km/h

The windiest month (with the highest average wind speed) is February (24.8km/h).
The calmest month (with the lowest average wind speed) is July (14.7km/h).

Average humidity in January
Selfoss, Iceland

Average humidity in January - Selfoss, Iceland
  • Average humidity in January: 82%

The months with the highest relative humidity are January and September (82%).
The month with the lowest relative humidity is May (74%).

Average rainfall in January
Selfoss, Iceland

Average rainfall in January - Selfoss, Iceland
  • Average rainfall in January: 142mm

The wettest month (with the highest rainfall) is January (142mm).
The driest month (with the least rainfall) is June (45mm).

Average rainfall days in January
Selfoss, Iceland

Average rainfall days in January - Selfoss, Iceland
  • Average rainfall days in January: 18.6 days

The month with the highest number of rainy days is April (19.9 days).
The month with the least rainy days is December (14.3 days).

Average snowfall in January
Selfoss, Iceland

Average snowfall in January - Selfoss, Iceland
  • Average snowfall in January: 190mm

The month with the highest snowfall is March (220mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in January
Selfoss, Iceland

Average snowfall days in January - Selfoss, Iceland
  • Average snowfall days in January: 11.9 days

The month with the highest number of snowfall days is March (13.3 days).
The months with the least snowfall days are July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Selfoss, Iceland

Average daylight in January / Average sunshine in January - Selfoss, Iceland
  • Average daylight in January: 5h and 4min

The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).

  • Average sunshine in January: 2h and 2min

The month with the most sunshine is August (Average sunshine: 7h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

Average sunshine days in January
Selfoss, Iceland

Average sunshine days in January - Selfoss, Iceland
  • Average sunshine days in January: 5.5 days

The month with the most sunshine days is June (12.3 days).
The month with the least sunshine days is January (5.5 days).

Average UV index in January
Selfoss, Iceland

Average UV index in January - Selfoss, Iceland
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 4).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in January
Selfoss, Iceland

Average cloud cover in January - Selfoss, Iceland
  • Average cloud cover in January: 65

The month with the most cloud cover is March (Cloud cover 67).
The months with the least cloud cover are May and August (Cloud cover 59).

Average visibility in January
Selfoss, Iceland

Average visibility in January - Selfoss, Iceland
  • Average visibility in January: 8km

The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (8km).

Selfoss, Iceland

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